mirror of https://github.com/torvalds/linux.git
61760 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
|
410520d07f |
9p pull request for inclusion in 5.9
- some code cleanup - a couple of static analysis fixes - setattr: try to pick a fid associated with the file rather than the dentry, which might sometimes matter -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE/IPbcYBuWt0zoYhOq06b7GqY5nAFAl83dvkACgkQq06b7GqY 5nDk4g/+KNpbIFHhDyhCzmZ1WbaUYlZseFm8VBR9dzwOkXCuVl+WQd9ducYlEifT cZ29xmEuom01LhFOs6VzC+IODQq3h1WvEbVRfCSlLEWvfHyPODSDY8mrn+1TdOZL UOOP1wUjaDqmAcBQ4PSDNmj2cONNWPqkgnuyswjsBpabOY/U8FxG9J/QiPfC12zs QoF5800OiuLYS5SefI9kKJ47DkTLpm/aq7/Z1liAxJBzHrguORjg16cssXhWeysD jEMD3pIrsqMDX/vNkAO0DaR8FWvxTFZR1Bza1ylJiUy3K3rLXKfo+42jiCnuo5e9 uhA012RfiCZB3kIsLe5hCPXUWz0MhizaJAPkceHsgUtkuiU2qXyY05HEvS2HHl0s inqR8gRkZ2NhROx1R/0q+Wu2posCBderDwg7Mkzt/7j5Ue3cTIKvbeBxH9iLLaK+ rHp0NbfP6wYN5qKjH1rru1IOmaUCV2HHV6x/alnwaVBfZqg5HYKkzlS7M+5hAbtb niLFXXCtPBGqS+u9w7sruj6utuiJjXBfB1ejaawY+frS41+v3NkHjjUWCH67u8I9 u3pmPpvm5o7gRoRmvmxEdSb+jAYZwLTcbkUhRMHLQOHCBZXtcul41p2BUpoBm0zw 42mlMMMBAjaxtzLlryvACg5lx6x7ykE4pExKAc0dzrzWfgzwEZQ= =hwGq -----END PGP SIGNATURE----- Merge tag '9p-for-5.9-rc1' of git://github.com/martinetd/linux Pull 9p updates from Dominique Martinet: - some code cleanup - a couple of static analysis fixes - setattr: try to pick a fid associated with the file rather than the dentry, which might sometimes matter * tag '9p-for-5.9-rc1' of git://github.com/martinetd/linux: 9p: Remove unneeded cast from memory allocation 9p: remove unused code in 9p net/9p: Fix sparse endian warning in trans_fd.c 9p: Fix memory leak in v9fs_mount 9p: retrieve fid from file when file instance exist. |
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Linus Torvalds
|
37711e5e23 |
NFS client updates for Linux 5.9
Highlights include: Stable fixes: - pNFS: Don't return layout segments that are being used for I/O - pNFS: Don't move layout segments off the active list when being used for I/O Features: - NFS: Add support for user xattrs through the NFSv4.2 protocol - NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC - NFSv4.0 allow nconnect for v4.0 Bugfixes and cleanups: - nfs: ensure correct writeback errors are returned on close() - nfs: nfs_file_write() should check for writeback errors - nfs: Fix getxattr kernel panic and memory overflow - NFS: Fix the pNFS/flexfiles mirrored read failover code - SUNRPC: dont update timeout value on connection reset - freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS - sunrpc: destroy rpc_inode_cachep after unregister_filesystem -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESQctxSBg8JpV8KqEZwvnipYKAPIFAl83CYEACgkQZwvnipYK APLx4g/9EQNTG5VkUToElRHs4b3vFxbmh9Odnk/JwPHxY5GQ8/AyGqwWHBgMZc7/ 2AV/C83pk7pJsDNsKbVAaFCT1cwjmItHM63vKJYGBYbE8LhkZ/1sYkdtPBYwHoVl 7CWfpVY/4NjYw5GJfrVA5Y0m7lrQInRtIMzfaENw2tpw+/cKUpadxgEJltzFNvpa Ploinr1ZRBl1tvfeHNRP5ZMPk2AfgGWtQKQ/b2UWUk5tXALoQm2Eu+/oku39uqhy hW5tCbU2BzR91gg5JwF9n7VowkCHXfe7lMzDBTVfwZOELOmoyys/1wKv550FWcWi yymljWiPGZOnXGT1vfKptPESQjdtElMfanvEZ0BzS+yNR0HZGnIupaxGlYlG9ZGU 2sXHQPp3mk2Q+L1IgbTSCnSju0YlZo32JQpYCZiROjIXnPWPQ50YNhr8GL18M1FW hTeShg2avWH+59GB6moEBmsuvui7Dy1jkimblToLEoGJ4kbvEl72FYSqTCkAXXbB rVUzhmJFgfk/EOS4d+QKJoBqNzw3aw79wyT7PLkoCYBqPZBHQexlmI+ktMbgUEdw c/fM7l5/Vcb9weIHKzul2Jbk5q6bFME/xPnIkr3v/oKIFlLFwQ04BX6R/42AMJHw V5Q9Wp81Vy6RXQMn8P0ZMeY0WQC/rhpijOEVMUC+Ni+spz44AdM= =k4pE -----END PGP SIGNATURE----- Merge tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs Pull NFS client updates from Trond Myklebust: "Stable fixes: - pNFS: Don't return layout segments that are being used for I/O - pNFS: Don't move layout segments off the active list when being used for I/O Features: - NFS: Add support for user xattrs through the NFSv4.2 protocol - NFS: Allow applications to speed up readdir+statx() using AT_STATX_DONT_SYNC - NFSv4.0 allow nconnect for v4.0 Bugfixes and cleanups: - nfs: ensure correct writeback errors are returned on close() - nfs: nfs_file_write() should check for writeback errors - nfs: Fix getxattr kernel panic and memory overflow - NFS: Fix the pNFS/flexfiles mirrored read failover code - SUNRPC: dont update timeout value on connection reset - freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS - sunrpc: destroy rpc_inode_cachep after unregister_filesystem" * tag 'nfs-for-5.9-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (32 commits) NFS: Fix flexfiles read failover fs: nfs: delete repeated words in comments rpc_pipefs: convert comma to semicolon nfs: Fix getxattr kernel panic and memory overflow NFS: Don't return layout segments that are in use NFS: Don't move layouts to plh_return_segs list while in use NFS: Add layout segment info to pnfs read/write/commit tracepoints NFS: Add tracepoints for layouterror and layoutstats. NFS: Report the stateid + status in trace_nfs4_layoutreturn_on_close() SUNRPC dont update timeout value on connection reset nfs: nfs_file_write() should check for writeback errors nfs: ensure correct writeback errors are returned on close() NFSv4.2: xattr cache: get rid of cache discard work queue NFS: remove redundant initialization of variable result NFSv4.0 allow nconnect for v4.0 freezer: Add unsafe versions of freezable_schedule_timeout_interruptible for NFS sunrpc: destroy rpc_inode_cachep after unregister_filesystem NFSv4.2: add client side xattr caching. NFSv4.2: hook in the user extended attribute handlers NFSv4.2: add the extended attribute proc functions. ... |
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Linus Torvalds
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a1d21081a6 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
"Some merge window fallout, some longer term fixes:
1) Handle headroom properly in lapbether and x25_asy drivers, from
Xie He.
2) Fetch MAC address from correct r8152 device node, from Thierry
Reding.
3) In the sw kTLS path we should allow MSG_CMSG_COMPAT in sendmsg,
from Rouven Czerwinski.
4) Correct fdputs in socket layer, from Miaohe Lin.
5) Revert troublesome sockptr_t optimization, from Christoph Hellwig.
6) Fix TCP TFO key reading on big endian, from Jason Baron.
7) Missing CAP_NET_RAW check in nfc, from Qingyu Li.
8) Fix inet fastreuse optimization with tproxy sockets, from Tim
Froidcoeur.
9) Fix 64-bit divide in new SFC driver, from Edward Cree.
10) Add a tracepoint for prandom_u32 so that we can more easily
perform usage analysis. From Eric Dumazet.
11) Fix rwlock imbalance in AF_PACKET, from John Ogness"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (49 commits)
net: openvswitch: introduce common code for flushing flows
af_packet: TPACKET_V3: fix fill status rwlock imbalance
random32: add a tracepoint for prandom_u32()
Revert "ipv4: tunnel: fix compilation on ARCH=um"
net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps_cpus
net: ethernet: stmmac: Disable hardware multicast filter
net: stmmac: dwmac1000: provide multicast filter fallback
ipv4: tunnel: fix compilation on ARCH=um
vsock: fix potential null pointer dereference in vsock_poll()
sfc: fix ef100 design-param checking
net: initialize fastreuse on inet_inherit_port
net: refactor bind_bucket fastreuse into helper
net: phy: marvell10g: fix null pointer dereference
net: Fix potential memory leak in proto_register()
net: qcom/emac: add missed clk_disable_unprepare in error path of emac_clks_phase1_init
ionic_lif: Use devm_kcalloc() in ionic_qcq_alloc()
net/nfc/rawsock.c: add CAP_NET_RAW check.
hinic: fix strncpy output truncated compile warnings
drivers/net/wan/x25_asy: Added needed_headroom and a skb->len check
net/tls: Fix kmap usage
...
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Tonghao Zhang
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1f3a090b90 |
net: openvswitch: introduce common code for flushing flows
To avoid some issues, for example RCU usage warning and double free,
we should flush the flows under ovs_lock. This patch refactors
table_instance_destroy and introduces table_instance_flow_flush
which can be invoked by __dp_destroy or ovs_flow_tbl_flush.
Fixes:
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John Ogness
|
88fd1cb80d |
af_packet: TPACKET_V3: fix fill status rwlock imbalance
After @blk_fill_in_prog_lock is acquired there is an early out vnet
situation that can occur. In that case, the rwlock needs to be
released.
Also, since @blk_fill_in_prog_lock is only acquired when @tp_version
is exactly TPACKET_V3, only release it on that exact condition as
well.
And finally, add sparse annotation so that it is clearer that
prb_fill_curr_block() and prb_clear_blk_fill_status() are acquiring
and releasing @blk_fill_in_prog_lock, respectively. sparse is still
unable to understand the balance, but the warnings are now on a
higher level that make more sense.
Fixes:
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David S. Miller
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9643609423 |
Revert "ipv4: tunnel: fix compilation on ARCH=um"
This reverts commit
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Eric Dumazet
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2e0d8fef5f |
net: accept an empty mask in /sys/class/net/*/queues/rx-*/rps_cpus
We must accept an empty mask in store_rps_map(), or we are not able
to disable RPS on a queue.
Fixes:
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Johannes Berg
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06a7a37be5 |
ipv4: tunnel: fix compilation on ARCH=um
With certain configurations, a 64-bit ARCH=um errors out here with an unknown csum_ipv6_magic() function. Include the right header file to always have it. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Stefano Garzarella
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1980c05844 |
vsock: fix potential null pointer dereference in vsock_poll()
syzbot reported this issue where in the vsock_poll() we find the
socket state at TCP_ESTABLISHED, but 'transport' is null:
general protection fault, probably for non-canonical address 0xdffffc0000000012: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097]
CPU: 0 PID: 8227 Comm: syz-executor.2 Not tainted 5.8.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vsock_poll+0x75a/0x8e0 net/vmw_vsock/af_vsock.c:1038
Call Trace:
sock_poll+0x159/0x460 net/socket.c:1266
vfs_poll include/linux/poll.h:90 [inline]
do_pollfd fs/select.c:869 [inline]
do_poll fs/select.c:917 [inline]
do_sys_poll+0x607/0xd40 fs/select.c:1011
__do_sys_poll fs/select.c:1069 [inline]
__se_sys_poll fs/select.c:1057 [inline]
__x64_sys_poll+0x18c/0x440 fs/select.c:1057
do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
entry_SYSCALL_64_after_hwframe+0x44/0xa9
This issue can happen if the TCP_ESTABLISHED state is set after we read
the vsk->transport in the vsock_poll().
We could put barriers to synchronize, but this can only happen during
connection setup, so we can simply check that 'transport' is valid.
Fixes:
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Linus Torvalds
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7c2a69f610 |
Xiubo has completed his work on filesystem client metrics, they are
sent to all available MDSes once per second now. Other than that, we have a lot of fixes and cleanups all around the filesystem, including a tweak to cut down on MDS request resends in multi-MDS setups from Yanhu and fixups for SELinux symlink labeling and MClientSession message decoding from Jeff. -----BEGIN PGP SIGNATURE----- iQFHBAABCAAxFiEEydHwtzie9C7TfviiSn/eOAIR84sFAl80I3MTHGlkcnlvbW92 QGdtYWlsLmNvbQAKCRBKf944AhHzi7rlB/4/tegnfsB+O6MQPt+DkSxjQ6+90J/O aDj3jnwHoUBUitTP92wHdy/TanlZMX0UQqq4caWt1Ot0Rveb6XTfTIzEDtG2ejYQ dcH6LB3dS9Qvjrwh7oRawx8Xux/RdIIA99OvAX7K+4IeLKP5PjmwfdM1Mm0agfoS V8qXm8cGyqF2lWown092Znr8s6OSsDEaUbjB2tlz5msWeK9rSFD5bDYOBdOTkBCU 5v5BIUwWWoU9YFMWDJgVNS5l2Scq5yTDEleZcCCJMovKNrhBi9DcwUDKrDQJ3+5v UmfI5M/L99Ng7yAcPqbeOZ1HibuOrdmqAoR6lCiD+PPEPrf99rVLRinQ =2NtI -----END PGP SIGNATURE----- Merge tag 'ceph-for-5.9-rc1' of git://github.com/ceph/ceph-client Pull ceph updates from Ilya Dryomov: "Xiubo has completed his work on filesystem client metrics, they are sent to all available MDSes once per second now. Other than that, we have a lot of fixes and cleanups all around the filesystem, including a tweak to cut down on MDS request resends in multi-MDS setups from Yanhu and fixups for SELinux symlink labeling and MClientSession message decoding from Jeff" * tag 'ceph-for-5.9-rc1' of git://github.com/ceph/ceph-client: (22 commits) ceph: handle zero-length feature mask in session messages ceph: use frag's MDS in either mode ceph: move sb->wb_pagevec_pool to be a global mempool ceph: set sec_context xattr on symlink creation ceph: remove redundant initialization of variable mds ceph: fix use-after-free for fsc->mdsc ceph: remove unused variables in ceph_mdsmap_decode() ceph: delete repeated words in fs/ceph/ ceph: send client provided metric flags in client metadata ceph: periodically send perf metrics to MDSes ceph: check the sesion state and return false in case it is closed libceph: replace HTTP links with HTTPS ones ceph: remove unnecessary cast in kfree() libceph: just have osd_req_op_init() return a pointer ceph: do not access the kiocb after aio requests ceph: clean up and optimize ceph_check_delayed_caps() ceph: fix potential mdsc use-after-free crash ceph: switch to WARN_ON_ONCE in encode_supported_features() ceph: add global total_caps to count the mdsc's total caps number ceph: add check_session_state() helper and make it global ... |
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Tim Froidcoeur
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d76f3351ce |
net: initialize fastreuse on inet_inherit_port
In the case of TPROXY, bind_conflict optimizations for SO_REUSEADDR or
SO_REUSEPORT are broken, possibly resulting in O(n) instead of O(1) bind
behaviour or in the incorrect reuse of a bind.
the kernel keeps track for each bind_bucket if all sockets in the
bind_bucket support SO_REUSEADDR or SO_REUSEPORT in two fastreuse flags.
These flags allow skipping the costly bind_conflict check when possible
(meaning when all sockets have the proper SO_REUSE option).
For every socket added to a bind_bucket, these flags need to be updated.
As soon as a socket that does not support reuse is added, the flag is
set to false and will never go back to true, unless the bind_bucket is
deleted.
Note that there is no mechanism to re-evaluate these flags when a socket
is removed (this might make sense when removing a socket that would not
allow reuse; this leaves room for a future patch).
For this optimization to work, it is mandatory that these flags are
properly initialized and updated.
When a child socket is created from a listen socket in
__inet_inherit_port, the TPROXY case could create a new bind bucket
without properly initializing these flags, thus preventing the
optimization to work. Alternatively, a socket not allowing reuse could
be added to an existing bind bucket without updating the flags, causing
bind_conflict to never be called as it should.
Call inet_csk_update_fastreuse when __inet_inherit_port decides to create
a new bind_bucket or use a different bind_bucket than the one of the
listen socket.
Fixes:
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Tim Froidcoeur
|
62ffc589ab |
net: refactor bind_bucket fastreuse into helper
Refactor the fastreuse update code in inet_csk_get_port into a small helper function that can be called from other places. Acked-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Tim Froidcoeur <tim.froidcoeur@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Miaohe Lin
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0f5907af39 |
net: Fix potential memory leak in proto_register()
If we failed to assign proto idx, we free the twsk_slab_name but forget to
free the twsk_slab. Add a helper function tw_prot_cleanup() to free these
together and also use this helper function in proto_unregister().
Fixes:
|
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Qingyu Li
|
26896f0146 |
net/nfc/rawsock.c: add CAP_NET_RAW check.
When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked first. Signed-off-by: Qingyu Li <ieatmuttonchuan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Ira Weiny
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b06c19d9f8 |
net/tls: Fix kmap usage
When MSG_OOB is specified to tls_device_sendpage() the mapped page is
never unmapped.
Hold off mapping the page until after the flags are checked and the page
is actually needed.
Fixes:
|
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Linus Torvalds
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97d052ea3f |
A set of locking fixes and updates:
- Untangle the header spaghetti which causes build failures in various
situations caused by the lockdep additions to seqcount to validate that
the write side critical sections are non-preemptible.
- The seqcount associated lock debug addons which were blocked by the
above fallout.
seqcount writers contrary to seqlock writers must be externally
serialized, which usually happens via locking - except for strict per
CPU seqcounts. As the lock is not part of the seqcount, lockdep cannot
validate that the lock is held.
This new debug mechanism adds the concept of associated locks.
sequence count has now lock type variants and corresponding
initializers which take a pointer to the associated lock used for
writer serialization. If lockdep is enabled the pointer is stored and
write_seqcount_begin() has a lockdep assertion to validate that the
lock is held.
Aside of the type and the initializer no other code changes are
required at the seqcount usage sites. The rest of the seqcount API is
unchanged and determines the type at compile time with the help of
_Generic which is possible now that the minimal GCC version has been
moved up.
Adding this lockdep coverage unearthed a handful of seqcount bugs which
have been addressed already independent of this.
While generaly useful this comes with a Trojan Horse twist: On RT
kernels the write side critical section can become preemtible if the
writers are serialized by an associated lock, which leads to the well
known reader preempts writer livelock. RT prevents this by storing the
associated lock pointer independent of lockdep in the seqcount and
changing the reader side to block on the lock when a reader detects
that a writer is in the write side critical section.
- Conversion of seqcount usage sites to associated types and initializers.
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Merge tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Thomas Gleixner:
"A set of locking fixes and updates:
- Untangle the header spaghetti which causes build failures in
various situations caused by the lockdep additions to seqcount to
validate that the write side critical sections are non-preemptible.
- The seqcount associated lock debug addons which were blocked by the
above fallout.
seqcount writers contrary to seqlock writers must be externally
serialized, which usually happens via locking - except for strict
per CPU seqcounts. As the lock is not part of the seqcount, lockdep
cannot validate that the lock is held.
This new debug mechanism adds the concept of associated locks.
sequence count has now lock type variants and corresponding
initializers which take a pointer to the associated lock used for
writer serialization. If lockdep is enabled the pointer is stored
and write_seqcount_begin() has a lockdep assertion to validate that
the lock is held.
Aside of the type and the initializer no other code changes are
required at the seqcount usage sites. The rest of the seqcount API
is unchanged and determines the type at compile time with the help
of _Generic which is possible now that the minimal GCC version has
been moved up.
Adding this lockdep coverage unearthed a handful of seqcount bugs
which have been addressed already independent of this.
While generally useful this comes with a Trojan Horse twist: On RT
kernels the write side critical section can become preemtible if
the writers are serialized by an associated lock, which leads to
the well known reader preempts writer livelock. RT prevents this by
storing the associated lock pointer independent of lockdep in the
seqcount and changing the reader side to block on the lock when a
reader detects that a writer is in the write side critical section.
- Conversion of seqcount usage sites to associated types and
initializers"
* tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
locking/seqlock, headers: Untangle the spaghetti monster
locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header
x86/headers: Remove APIC headers from <asm/smp.h>
seqcount: More consistent seqprop names
seqcount: Compress SEQCNT_LOCKNAME_ZERO()
seqlock: Fold seqcount_LOCKNAME_init() definition
seqlock: Fold seqcount_LOCKNAME_t definition
seqlock: s/__SEQ_LOCKDEP/__SEQ_LOCK/g
hrtimer: Use sequence counter with associated raw spinlock
kvm/eventfd: Use sequence counter with associated spinlock
userfaultfd: Use sequence counter with associated spinlock
NFSv4: Use sequence counter with associated spinlock
iocost: Use sequence counter with associated spinlock
raid5: Use sequence counter with associated spinlock
vfs: Use sequence counter with associated spinlock
timekeeping: Use sequence counter with associated raw spinlock
xfrm: policy: Use sequence counters with associated lock
netfilter: nft_set_rbtree: Use sequence counter with associated rwlock
netfilter: conntrack: Use sequence counter with associated spinlock
sched: tasks: Use sequence counter with associated spinlock
...
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Jason Baron
|
f19008e676 |
tcp: correct read of TFO keys on big endian systems
When TFO keys are read back on big endian systems either via the global
sysctl interface or via getsockopt() using TCP_FASTOPEN_KEY, the values
don't match what was written.
For example, on s390x:
# echo "1-2-3-4" > /proc/sys/net/ipv4/tcp_fastopen_key
# cat /proc/sys/net/ipv4/tcp_fastopen_key
02000000-01000000-04000000-03000000
Instead of:
# cat /proc/sys/net/ipv4/tcp_fastopen_key
00000001-00000002-00000003-00000004
Fix this by converting to the correct endianness on read. This was
reported by Colin Ian King when running the 'tcp_fastopen_backup_key' net
selftest on s390x, which depends on the read value matching what was
written. I've confirmed that the test now passes on big and little endian
systems.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Fixes:
|
|
Christoph Hellwig
|
519a8a6cf9 |
net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces"
This reverts commits |
|
|
Linus Torvalds
|
7a6b60441f |
Highlights:
- Support for user extended attributes on NFS (RFC 8276)
- Further reduce unnecessary NFSv4 delegation recalls
Notable fixes:
- Fix recent krb5p regression
- Address a few resource leaks and a rare NULL dereference
Other:
- De-duplicate RPC/RDMA error handling and other utility functions
- Replace storage and display of kernel memory addresses by tracepoints
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Merge tag 'nfsd-5.9' of git://git.linux-nfs.org/projects/cel/cel-2.6
Pull NFS server updates from Chuck Lever:
"Highlights:
- Support for user extended attributes on NFS (RFC 8276)
- Further reduce unnecessary NFSv4 delegation recalls
Notable fixes:
- Fix recent krb5p regression
- Address a few resource leaks and a rare NULL dereference
Other:
- De-duplicate RPC/RDMA error handling and other utility functions
- Replace storage and display of kernel memory addresses by tracepoints"
* tag 'nfsd-5.9' of git://git.linux-nfs.org/projects/cel/cel-2.6: (38 commits)
svcrdma: CM event handler clean up
svcrdma: Remove transport reference counting
svcrdma: Fix another Receive buffer leak
SUNRPC: Refresh the show_rqstp_flags() macro
nfsd: netns.h: delete a duplicated word
SUNRPC: Fix ("SUNRPC: Add "@len" parameter to gss_unwrap()")
nfsd: avoid a NULL dereference in __cld_pipe_upcall()
nfsd4: a client's own opens needn't prevent delegations
nfsd: Use seq_putc() in two functions
svcrdma: Display chunk completion ID when posting a rw_ctxt
svcrdma: Record send_ctxt completion ID in trace_svcrdma_post_send()
svcrdma: Introduce Send completion IDs
svcrdma: Record Receive completion ID in svc_rdma_decode_rqst
svcrdma: Introduce Receive completion IDs
svcrdma: Introduce infrastructure to support completion IDs
svcrdma: Add common XDR encoders for RDMA and Read segments
svcrdma: Add common XDR decoders for RDMA and Read segments
SUNRPC: Add helpers for decoding list discriminators symbolically
svcrdma: Remove declarations for functions long removed
svcrdma: Clean up trace_svcrdma_send_failed() tracepoint
...
|
|
|
Miaohe Lin
|
7c7ab580db |
net: Convert to use the fallthrough macro
Convert the uses of fallthrough comments to fallthrough macro. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Miaohe Lin
|
11f920d2aa |
net: Use helper function ip_is_fragment()
Use helper function ip_is_fragment() to check ip fragment. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Miaohe Lin
|
47260ba937 |
net: Remove meaningless jump label out_fs
The out_fs jump label has nothing to do but goto out. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Miaohe Lin
|
ce787a5a07 |
net: Set fput_needed iff FDPUT_FPUT is set
We should fput() file iff FDPUT_FPUT is set. So we should set fput_needed
accordingly.
Fixes:
|
|
|
Miaohe Lin
|
6b07edebe6 |
net: Use helper function fdput()
Use helper function fdput() to fput() the file iff FDPUT_FPUT is set. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
Rouven Czerwinski
|
1c3b63f155 |
net/tls: allow MSG_CMSG_COMPAT in sendmsg
Trying to use ktls on a system with 32-bit userspace and 64-bit kernel results in a EOPNOTSUPP message during sendmsg: setsockopt(3, SOL_TLS, TLS_TX, …, 40) = 0 sendmsg(3, …, msg_flags=0}, 0) = -1 EOPNOTSUPP (Operation not supported) The tls_sw implementation does strict flag checking and does not allow the MSG_CMSG_COMPAT flag, which is set if the message comes in through the compat syscall. This patch adds MSG_CMSG_COMPAT to the flag check to allow the usage of the TLS SW implementation on systems using the compat syscall path. Note that the same check is present in the sendmsg path for the TLS device implementation, however the flag hasn't been added there for lack of testing hardware. Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
David S. Miller
|
64cae2fb48 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2020-08-08 The following pull-request contains BPF updates for your *net* tree. We've added 11 non-merge commits during the last 2 day(s) which contain a total of 24 files changed, 216 insertions(+), 135 deletions(-). The main changes are: 1) Fix UAPI for BPF map iterator before it gets frozen to allow for more extensions/customization in future, from Yonghong Song. 2) Fix selftests build to undo verbose build output, from Andrii Nakryiko. 3) Fix inlining compilation error on bpf_do_trace_printk() due to variable argument lists, from Stanislav Fomichev. 4) Fix an uninitialized pointer warning at btf__parse_raw() in libbpf, from Daniel T. Lee. 5) Fix several compilation warnings in selftests with regards to ignoring return value, from Jianlin Lv. 6) Fix interruptions by switching off timeout for BPF tests, from Jiri Benc. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
|
Paolo Abeni
|
7ee2492635 |
mptcp: fix warn at shutdown time for unaccepted msk sockets
With commit |
|
|
Linus Torvalds
|
1fa2c0a0c8 |
Fix SCM_RIGHTS compat mode
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|
Kees Cook
|
16b89f6953 |
net/scm: Fix typo in SCM_RIGHTS compat refactoring
When refactoring the SCM_RIGHTS code, I accidentally mis-merged my
native/compat diffs, which entirely broke using SCM_RIGHTS in compat
mode. Use the correct helper.
Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de>
Link: https://lists.ozlabs.org/pipermail/linuxppc-dev/2020-August/216156.html
Reported-by: "Alex Xu (Hello71)" <alex_y_xu@yahoo.ca>
Link: https://lore.kernel.org/lkml/1596812929.lz7fuo8r2w.none@localhost/
Suggested-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Fixes:
|
|
|
Linus Torvalds
|
81e11336d9 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton:
- a few MM hotfixes
- kthread, tools, scripts, ntfs and ocfs2
- some of MM
Subsystems affected by this patch series: kthread, tools, scripts, ntfs,
ocfs2 and mm (hofixes, pagealloc, slab-generic, slab, slub, kcsan,
debug, pagecache, gup, swap, shmem, memcg, pagemap, mremap, mincore,
sparsemem, vmalloc, kasan, pagealloc, hugetlb and vmscan).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits)
mm: vmscan: consistent update to pgrefill
mm/vmscan.c: fix typo
khugepaged: khugepaged_test_exit() check mmget_still_valid()
khugepaged: retract_page_tables() remember to test exit
khugepaged: collapse_pte_mapped_thp() protect the pmd lock
khugepaged: collapse_pte_mapped_thp() flush the right range
mm/hugetlb: fix calculation of adjust_range_if_pmd_sharing_possible
mm: thp: replace HTTP links with HTTPS ones
mm/page_alloc: fix memalloc_nocma_{save/restore} APIs
mm/page_alloc.c: skip setting nodemask when we are in interrupt
mm/page_alloc: fallbacks at most has 3 elements
mm/page_alloc: silence a KASAN false positive
mm/page_alloc.c: remove unnecessary end_bitidx for [set|get]_pfnblock_flags_mask()
mm/page_alloc.c: simplify pageblock bitmap access
mm/page_alloc.c: extract the common part in pfn_to_bitidx()
mm/page_alloc.c: replace the definition of NR_MIGRATETYPE_BITS with PB_migratetype_bits
mm/shuffle: remove dynamic reconfiguration
mm/memory_hotplug: document why shuffle_zone() is relevant
mm/page_alloc: remove nr_free_pagecache_pages()
mm: remove vm_total_pages
...
|
|
Waiman Long
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453431a549 |
mm, treewide: rename kzfree() to kfree_sensitive()
As said by Linus: A symmetric naming is only helpful if it implies symmetries in use. Otherwise it's actively misleading. In "kzalloc()", the z is meaningful and an important part of what the caller wants. In "kzfree()", the z is actively detrimental, because maybe in the future we really _might_ want to use that "memfill(0xdeadbeef)" or something. The "zero" part of the interface isn't even _relevant_. The main reason that kzfree() exists is to clear sensitive information that should not be leaked to other future users of the same memory objects. Rename kzfree() to kfree_sensitive() to follow the example of the recently added kvfree_sensitive() and make the intention of the API more explicit. In addition, memzero_explicit() is used to clear the memory to make sure that it won't get optimized away by the compiler. The renaming is done by using the command sequence: git grep -w --name-only kzfree |\ xargs sed -i 's/kzfree/kfree_sensitive/' followed by some editing of the kfree_sensitive() kerneldoc and adding a kzfree backward compatibility macro in slab.h. [akpm@linux-foundation.org: fs/crypto/inline_crypt.c needs linux/slab.h] [akpm@linux-foundation.org: fix fs/crypto/inline_crypt.c some more] Suggested-by: Joe Perches <joe@perches.com> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: James Morris <jmorris@namei.org> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Joe Perches <joe@perches.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: David Rientjes <rientjes@google.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: "Jason A . Donenfeld" <Jason@zx2c4.com> Link: http://lkml.kernel.org/r/20200616154311.12314-3-longman@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
86cfccb669 |
dlm for 5.9
This set includes a some improvements to the dlm networking layer: improving the ability to trace dlm messages for debugging, and improved handling of bad messages or disrupted connections. -----BEGIN PGP SIGNATURE----- iQIcBAABAgAGBQJfLCPxAAoJEDgbc8f8gGmqz04P/2hvv/4rXo9AOgnnstvZV1Qy Yo01Cy807vB1c3jhIJryM2gG61GNH22RAHc2NcfjJwy04HH/1IEr6P48Po3qYEnS 8fZ8B9msxpsujVOrRoeBuLN8elI1HftyNVWaVjH7xtD+fLCDLu9i10kv3aeS+DiB T6f7yQQv7hgXS3xGvlMr2//aLwGD2ZdcRbkOEGo+k7yUjQbIDH/wdZWcPLh6y4yT p20i2ulYKjEZFmXDMa17diONISeGO6iaDhee24XPDwNDp8qI1iPGJsmxltMmn8Qf d2HPF1IDh4eM8lCwmqBtjYTnJd6rAW0v3+Ek1+wzQKVeXLFiz/MEyuOldtpsqmMO 8Og0vr6zfTCjFo8uvyj+cF7Fcj0yIPWg1yb7EauqqxreK8V9GBA1V2ZXYVd8xwea thrAUaq8f+PYQ9uy1FsN3xaO3BFN1VpcvHu4/3gU3OudnZZt2Ae670RYHKC0bq8D 2tSsqaiDnlvniHgh4xvtNIvRANkDS1ZSbkUPZhMHL7DnRJn66oDIfCr7NMbZwvCa AS0q6suUFyXFbAEJcY6XWxe3aQ3WuxIClT84MgzX/dAK2Qcl8ryWGGSVc0dp4Vl1 cd8MtmpnIWsnxqNRl4jn6cfolDheaxL8nouLtJ+3/dC9VkyDyfmrtnM+8aTZKHoa 3/xrBuVkEJAwkAAr8Pb8 =qgti -----END PGP SIGNATURE----- Merge tag 'dlm-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: "This set includes a some improvements to the dlm networking layer: improving the ability to trace dlm messages for debugging, and improved handling of bad messages or disrupted connections" * tag 'dlm-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: fs: dlm: implement tcp graceful shutdown fs: dlm: change handling of reconnects fs: dlm: don't close socket on invalid message fs: dlm: set skb mark per peer socket fs: dlm: set skb mark for listen socket net: sock: add sock_set_mark dlm: Fix kobject memleak |
|
|
Linus Torvalds
|
96e3f3c16b |
- Add support to enable/disable the thermal zones resulting on core code and
drivers cleanup (Andrzej Pietrasiewicz) - Add generic netlink support for userspace notifications: events, temperature and discovery commands (Daniel Lezcano) - Fix redundant initialization for a ret variable (Colin Ian King) - Remove the clock cooling code as it is used nowhere (Amit Kucheria) - Add the rcar_gen3_thermal's r8a774e1 support (Marian-Cristian Rotariu) - Replace all references to thermal.txt in the documentation to the corresponding yaml files (Amit Kucheria) - Add maintainer entry for the IPA (Lukasz Luba) - Add support for MSM8939 for the tsens (Shawn Guo) - Update power allocator and devfreq cooling to SPDX licensing (Lukasz Luba) - Add Cannon Lake Low Power PCH support (Sumeet Pawnikar) - Add tsensor support for V2 mediatek thermal system (Henry Yen) - Fix thermal zone lookup by ID for the core code (Thierry Reding) -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEGn3N4YVz0WNVyHskqDIjiipP6E8FAl8q7tsACgkQqDIjiipP 6E+5Rwf7BFEn5YXPvng8cmnAlgvEBc9DdT6mGSo0NpFm9MdUxXlaqvw3WWSGyqWQ +z0Ka7lmn5XyiMsVN11++Snp+79X17HzZf9SXO3glyIpAn+5prTDRhzzj0/jPrtS sEeI++DrILsKKMGVljzftLmwNJN9DkUDNcnmWmZdCDbYVEKtP9Pjf2wBjAnXj7sX JA3CkHRMwYLEQbfaKz37M11cYM+LqbDOlb6U11YWgAGGJ7d7zNYRf2/YSYPM4AN6 iE6j0E+3jIlXesULsap1AzeJaBq+wFxj1FL2TUZ8KscvRrm3AucqzNAT2M/Bc5Az XLKKzc6Gp9JfqB5KXhX2EDu7VRnDBg== =cSMN -----END PGP SIGNATURE----- Merge tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux Pull thermal updates from Daniel Lezcano: - Add support to enable/disable the thermal zones resulting on core code and drivers cleanup (Andrzej Pietrasiewicz) - Add generic netlink support for userspace notifications: events, temperature and discovery commands (Daniel Lezcano) - Fix redundant initialization for a ret variable (Colin Ian King) - Remove the clock cooling code as it is used nowhere (Amit Kucheria) - Add the rcar_gen3_thermal's r8a774e1 support (Marian-Cristian Rotariu) - Replace all references to thermal.txt in the documentation to the corresponding yaml files (Amit Kucheria) - Add maintainer entry for the IPA (Lukasz Luba) - Add support for MSM8939 for the tsens (Shawn Guo) - Update power allocator and devfreq cooling to SPDX licensing (Lukasz Luba) - Add Cannon Lake Low Power PCH support (Sumeet Pawnikar) - Add tsensor support for V2 mediatek thermal system (Henry Yen) - Fix thermal zone lookup by ID for the core code (Thierry Reding) * tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (40 commits) thermal: intel: intel_pch_thermal: Add Cannon Lake Low Power PCH support thermal: mediatek: Add tsensor support for V2 thermal system thermal: mediatek: Prepare to add support for other platforms thermal: Update power allocator and devfreq cooling to SPDX licensing MAINTAINERS: update entry to thermal governors file name prefixing thermal: core: Add thermal zone enable/disable notification thermal: qcom: tsens-v0_1: Add support for MSM8939 dt-bindings: tsens: qcom: Document MSM8939 compatible thermal: core: Fix thermal zone lookup by ID thermal: int340x: processor_thermal: fix: update Jasper Lake PCI id thermal: imx8mm: Support module autoloading thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor() MAINTAINERS: Add maintenance information for IPA thermal: rcar_gen3_thermal: Do not shadow thcode variable dt-bindings: thermal: Get rid of thermal.txt and replace references thermal: core: Move initialization after core initcall thermal: netlink: Improve the initcall ordering net: genetlink: Move initialization to core_initcall thermal: rcar_gen3_thermal: Add r8a774e1 support thermal/drivers/clock_cooling: Remove clock_cooling code ... |
|
Yonghong Song
|
5e7b30205c |
bpf: Change uapi for bpf iterator map elements
Commit |
|
Alexander Aring
|
84d1c61740 |
net: sock: add sock_set_mark
This patch adds a new socket helper function to set the mark value for a kernel socket. Signed-off-by: Alexander Aring <aahringo@redhat.com> Signed-off-by: David Teigland <teigland@redhat.com> |
|
|
Linus Torvalds
|
47ec5303d7 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.
2) Support UDP segmentation in code TSO code, from Eric Dumazet.
3) Allow flashing different flash images in cxgb4 driver, from Vishal
Kulkarni.
4) Add drop frames counter and flow status to tc flower offloading,
from Po Liu.
5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.
6) Various new indirect call avoidance, from Eric Dumazet and Brian
Vazquez.
7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
Yonghong Song.
8) Support querying and setting hardware address of a port function via
devlink, use this in mlx5, from Parav Pandit.
9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.
10) Switch qca8k driver over to phylink, from Jonathan McDowell.
11) In bpftool, show list of processes holding BPF FD references to
maps, programs, links, and btf objects. From Andrii Nakryiko.
12) Several conversions over to generic power management, from Vaibhav
Gupta.
13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
Yakunin.
14) Various https url conversions, from Alexander A. Klimov.
15) Timestamping and PHC support for mscc PHY driver, from Antoine
Tenart.
16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.
17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.
18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.
19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
drivers. From Luc Van Oostenryck.
20) XDP support for xen-netfront, from Denis Kirjanov.
21) Support receive buffer autotuning in MPTCP, from Florian Westphal.
22) Support EF100 chip in sfc driver, from Edward Cree.
23) Add XDP support to mvpp2 driver, from Matteo Croce.
24) Support MPTCP in sock_diag, from Paolo Abeni.
25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
infrastructure, from Jakub Kicinski.
26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.
27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.
28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.
29) Refactor a lot of networking socket option handling code in order to
avoid set_fs() calls, from Christoph Hellwig.
30) Add rfc4884 support to icmp code, from Willem de Bruijn.
31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.
32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.
33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.
34) Support TCP syncookies in MPTCP, from Flowian Westphal.
35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
Brivio.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
net: thunderx: initialize VF's mailbox mutex before first usage
usb: hso: remove bogus check for EINPROGRESS
usb: hso: no complaint about kmalloc failure
hso: fix bailout in error case of probe
ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
selftests/net: relax cpu affinity requirement in msg_zerocopy test
mptcp: be careful on subflow creation
selftests: rtnetlink: make kci_test_encap() return sub-test result
selftests: rtnetlink: correct the final return value for the test
net: dsa: sja1105: use detected device id instead of DT one on mismatch
tipc: set ub->ifindex for local ipv6 address
ipv6: add ipv6_dev_find()
net: openvswitch: silence suspicious RCU usage warning
Revert "vxlan: fix tos value before xmit"
ptp: only allow phase values lower than 1 period
farsync: switch from 'pci_' to 'dma_' API
wan: wanxl: switch from 'pci_' to 'dma_' API
hv_netvsc: do not use VF device if link is down
dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
net: macb: Properly handle phylink on at91sam9x
...
|
|
Stefano Brivio
|
8ed54f167a |
ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
On architectures defining _HAVE_ARCH_IPV6_CSUM, we get
csum_ipv6_magic() defined by means of arch checksum.h headers. On
other architectures, we actually need to include net/ip6_checksum.h
to be able to use it.
Without this include, building with defconfig breaks at least for
s390.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes:
|
|
|
Paolo Abeni
|
adf7341064 |
mptcp: be careful on subflow creation
Nicolas reported the following oops:
[ 1521.392541] BUG: kernel NULL pointer dereference, address: 00000000000000c0
[ 1521.394189] #PF: supervisor read access in kernel mode
[ 1521.395376] #PF: error_code(0x0000) - not-present page
[ 1521.396607] PGD 0 P4D 0
[ 1521.397156] Oops: 0000 [#1] SMP PTI
[ 1521.398020] CPU: 0 PID: 22986 Comm: kworker/0:2 Not tainted 5.8.0-rc4+ #109
[ 1521.399618] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 1521.401728] Workqueue: events mptcp_worker
[ 1521.402651] RIP: 0010:mptcp_subflow_create_socket+0xf1/0x1c0
[ 1521.403954] Code: 24 08 89 44 24 04 48 8b 7a 18 e8 2a 48 d4 ff 8b 44 24 04 85 c0 75 7a 48 8b 8b 78 02 00 00 48 8b 54 24 08 48 8d bb 80 00 00 00 <48> 8b 89 c0 00 00 00 48 89 8a c0 00 00 00 48 8b 8b 78 02 00 00 8b
[ 1521.408201] RSP: 0000:ffffabc4002d3c60 EFLAGS: 00010246
[ 1521.409433] RAX: 0000000000000000 RBX: ffffa0b9ad8c9a00 RCX: 0000000000000000
[ 1521.411096] RDX: ffffa0b9ae78a300 RSI: 00000000fffffe01 RDI: ffffa0b9ad8c9a80
[ 1521.412734] RBP: ffffa0b9adff2e80 R08: ffffa0b9af02d640 R09: ffffa0b9ad923a00
[ 1521.414333] R10: ffffabc4007139f8 R11: fefefefefefefeff R12: ffffabc4002d3cb0
[ 1521.415918] R13: ffffa0b9ad91fa58 R14: ffffa0b9ad8c9f9c R15: 0000000000000000
[ 1521.417592] FS: 0000000000000000(0000) GS:ffffa0b9af000000(0000) knlGS:0000000000000000
[ 1521.419490] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1521.420839] CR2: 00000000000000c0 CR3: 000000002951e006 CR4: 0000000000160ef0
[ 1521.422511] Call Trace:
[ 1521.423103] __mptcp_subflow_connect+0x94/0x1f0
[ 1521.425376] mptcp_pm_create_subflow_or_signal_addr+0x200/0x2a0
[ 1521.426736] mptcp_worker+0x31b/0x390
[ 1521.431324] process_one_work+0x1fc/0x3f0
[ 1521.432268] worker_thread+0x2d/0x3b0
[ 1521.434197] kthread+0x117/0x130
[ 1521.435783] ret_from_fork+0x22/0x30
on some unconventional configuration.
The MPTCP protocol is trying to create a subflow for an
unaccepted server socket. That is allowed by the RFC, even
if subflow creation will likely fail.
Unaccepted sockets have still a NULL sk_socket field,
avoid the issue by failing earlier.
Reported-and-tested-by: Nicolas Rybowski <nicolas.rybowski@tessares.net>
Fixes:
|
|
Xin Long
|
5a6f6f5791 |
tipc: set ub->ifindex for local ipv6 address
Without ub->ifindex set for ipv6 address in tipc_udp_enable(), ipv6_sock_mc_join() may make the wrong dev join the multicast address in enable_mcast(). This causes that tipc links would never be created. So fix it by getting the right netdev and setting ub->ifindex, as it does for ipv4 address. Reported-by: Shuang Li <shuali@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Xin Long
|
81f6cb3122 |
ipv6: add ipv6_dev_find()
This is to add an ip_dev_find like function for ipv6, used to find the dev by saddr. It will be used by TIPC protocol. So also export it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
|
|
Tonghao Zhang
|
5845589ed6 |
net: openvswitch: silence suspicious RCU usage warning
ovs_flow_tbl_destroy always is called from RCU callback
or error path. It is no need to check if rcu_read_lock
or lockdep_ovsl_is_held was held.
ovs_dp_cmd_fill_info always is called with ovs_mutex,
So use the rcu_dereference_ovsl instead of rcu_dereference
in ovs_flow_tbl_masks_cache_size.
Fixes:
|
|
|
Linus Torvalds
|
2324d50d05 |
It's been a busy cycle for documentation - hopefully the busiest for a
while to come. Changes include:
- Some new Chinese translations
- Progress on the battle against double words words and non-HTTPS URLs
- Some block-mq documentation
- More RST conversions from Mauro. At this point, that task is
essentially complete, so we shouldn't see this kind of churn again for a
while. Unless we decide to switch to asciidoc or something...:)
- Lots of typo fixes, warning fixes, and more.
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Merge tag 'docs-5.9' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"It's been a busy cycle for documentation - hopefully the busiest for a
while to come. Changes include:
- Some new Chinese translations
- Progress on the battle against double words words and non-HTTPS
URLs
- Some block-mq documentation
- More RST conversions from Mauro. At this point, that task is
essentially complete, so we shouldn't see this kind of churn again
for a while. Unless we decide to switch to asciidoc or
something...:)
- Lots of typo fixes, warning fixes, and more"
* tag 'docs-5.9' of git://git.lwn.net/linux: (195 commits)
scripts/kernel-doc: optionally treat warnings as errors
docs: ia64: correct typo
mailmap: add entry for <alobakin@marvell.com>
doc/zh_CN: add cpu-load Chinese version
Documentation/admin-guide: tainted-kernels: fix spelling mistake
MAINTAINERS: adjust kprobes.rst entry to new location
devices.txt: document rfkill allocation
PCI: correct flag name
docs: filesystems: vfs: correct flag name
docs: filesystems: vfs: correct sync_mode flag names
docs: path-lookup: markup fixes for emphasis
docs: path-lookup: more markup fixes
docs: path-lookup: fix HTML entity mojibake
CREDITS: Replace HTTP links with HTTPS ones
docs: process: Add an example for creating a fixes tag
doc/zh_CN: add Chinese translation prefer section
doc/zh_CN: add clearing-warn-once Chinese version
doc/zh_CN: add admin-guide index
doc:it_IT: process: coding-style.rst: Correct __maybe_unused compiler label
futex: MAINTAINERS: Re-add selftests directory
...
|
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Olga Kornievskaia
|
7de62bc09f |
SUNRPC dont update timeout value on connection reset
Current behaviour: every time a v3 operation is re-sent to the server we update (double) the timeout. There is no distinction between whether or not the previous timer had expired before the re-sent happened. Here's the scenario: 1. Client sends a v3 operation 2. Server RST-s the connection (prior to the timeout) (eg., connection is immediately reset) 3. Client re-sends a v3 operation but the timeout is now 120sec. As a result, an application sees 2mins pause before a retry in case server again does not reply. Instead, this patch proposes to keep track off when the minor timeout should happen and if it didn't, then don't update the new timeout. Value is updated based on the previous value to make timeouts predictable. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> |
|
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Linus Torvalds
|
3950e97543 |
Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull execve updates from Eric Biederman: "During the development of v5.7 I ran into bugs and quality of implementation issues related to exec that could not be easily fixed because of the way exec is implemented. So I have been diggin into exec and cleaning up what I can. This cycle I have been looking at different ideas and different implementations to see what is possible to improve exec, and cleaning the way exec interfaces with in kernel users. Only cleaning up the interfaces of exec with rest of the kernel has managed to stabalize and make it through review in time for v5.9-rc1 resulting in 2 sets of changes this cycle. - Implement kernel_execve - Make the user mode driver code a better citizen With kernel_execve the code size got a little larger as the copying of parameters from userspace and copying of parameters from userspace is now separate. The good news is kernel threads no longer need to play games with set_fs to use exec. Which when combined with the rest of Christophs set_fs changes should security bugs with set_fs much more difficult" * 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (23 commits) exec: Implement kernel_execve exec: Factor bprm_stack_limits out of prepare_arg_pages exec: Factor bprm_execve out of do_execve_common exec: Move bprm_mm_init into alloc_bprm exec: Move initialization of bprm->filename into alloc_bprm exec: Factor out alloc_bprm exec: Remove unnecessary spaces from binfmts.h umd: Stop using split_argv umd: Remove exit_umh bpfilter: Take advantage of the facilities of struct pid exit: Factor thread_group_exited out of pidfd_poll umd: Track user space drivers with struct pid bpfilter: Move bpfilter_umh back into init data exec: Remove do_execve_file umh: Stop calling do_execve_file umd: Transform fork_usermode_blob into fork_usermode_driver umd: Rename umd_info.cmdline umd_info.driver_name umd: For clarity rename umh_info umd_info umh: Separate the user mode driver and the user mode helper support umh: Remove call_usermodehelper_setup_file. ... |
|
|
Linus Torvalds
|
fd76a74d94 |
audit/stable-5.9 PR 20200803
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Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit updates from Paul Moore:
"Aside from some smaller bug fixes, here are the highlights:
- add a new backlog wait metric to the audit status message, this is
intended to help admins determine how long processes have been
waiting for the audit backlog queue to clear
- generate audit records for nftables configuration changes
- generate CWD audit records for for the relevant LSM audit records"
* tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: report audit wait metric in audit status reply
audit: purge audit_log_string from the intra-kernel audit API
audit: issue CWD record to accompany LSM_AUDIT_DATA_* records
audit: use the proper gfp flags in the audit_log_nfcfg() calls
audit: remove unused !CONFIG_AUDITSYSCALL __audit_inode* stubs
audit: add gfp parameter to audit_log_nfcfg
audit: log nftables configuration change events
audit: Use struct_size() helper in alloc_chunk
|
|
|
Linus Torvalds
|
9ecc6ea491 |
seccomp updates for v5.9-rc1
- Improved selftest coverage, timeouts, and reporting
- Add EPOLLHUP support for SECCOMP_RET_USER_NOTIF (Christian Brauner)
- Refactor __scm_install_fd() into __receive_fd() and fix buggy callers
- Introduce "addfd" command for SECCOMP_RET_USER_NOTIF (Sargun Dhillon)
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Merge tag 'seccomp-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"There are a bunch of clean ups and selftest improvements along with
two major updates to the SECCOMP_RET_USER_NOTIF filter return:
EPOLLHUP support to more easily detect the death of a monitored
process, and being able to inject fds when intercepting syscalls that
expect an fd-opening side-effect (needed by both container folks and
Chrome). The latter continued the refactoring of __scm_install_fd()
started by Christoph, and in the process found and fixed a handful of
bugs in various callers.
- Improved selftest coverage, timeouts, and reporting
- Add EPOLLHUP support for SECCOMP_RET_USER_NOTIF (Christian Brauner)
- Refactor __scm_install_fd() into __receive_fd() and fix buggy
callers
- Introduce 'addfd' command for SECCOMP_RET_USER_NOTIF (Sargun
Dhillon)"
* tag 'seccomp-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (30 commits)
selftests/seccomp: Test SECCOMP_IOCTL_NOTIF_ADDFD
seccomp: Introduce addfd ioctl to seccomp user notifier
fs: Expand __receive_fd() to accept existing fd
pidfd: Replace open-coded receive_fd()
fs: Add receive_fd() wrapper for __receive_fd()
fs: Move __scm_install_fd() to __receive_fd()
net/scm: Regularize compat handling of scm_detach_fds()
pidfd: Add missing sock updates for pidfd_getfd()
net/compat: Add missing sock updates for SCM_RIGHTS
selftests/seccomp: Check ENOSYS under tracing
selftests/seccomp: Refactor to use fixture variants
selftests/harness: Clean up kern-doc for fixtures
seccomp: Use -1 marker for end of mode 1 syscall list
seccomp: Fix ioctl number for SECCOMP_IOCTL_NOTIF_ID_VALID
selftests/seccomp: Rename user_trap_syscall() to user_notif_syscall()
selftests/seccomp: Make kcmp() less required
seccomp: Use pr_fmt
selftests/seccomp: Improve calibration loop
selftests/seccomp: use 90s as timeout
selftests/seccomp: Expand benchmark to per-filter measurements
...
|
|
|
Linus Torvalds
|
99ea1521a0 |
Remove uninitialized_var() macro for v5.9-rc1
- Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var() -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAl8oYLQWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJsfjEACvf0D3WL3H7sLHtZ2HeMwOgAzq il08t6vUscINQwiIIK3Be43ok3uQ1Q+bj8sr2gSYTwunV2IYHFferzgzhyMMno3o XBIGd1E+v1E4DGBOiRXJvacBivKrfvrdZ7AWiGlVBKfg2E0fL1aQbe9AYJ6eJSbp UGqkBkE207dugS5SQcwrlk1tWKUL089lhDAPd7iy/5RK76OsLRCJFzIerLHF2ZK2 BwvA+NWXVQI6pNZ0aRtEtbbxwEU4X+2J/uaXH5kJDszMwRrgBT2qoedVu5LXFPi8 +B84IzM2lii1HAFbrFlRyL/EMueVFzieN40EOB6O8wt60Y4iCy5wOUzAdZwFuSTI h0xT3JI8BWtpB3W+ryas9cl9GoOHHtPA8dShuV+Y+Q2bWe1Fs6kTl2Z4m4zKq56z 63wQCdveFOkqiCLZb8s6FhnS11wKtAX4czvXRXaUPgdVQS1Ibyba851CRHIEY+9I AbtogoPN8FXzLsJn7pIxHR4ADz+eZ0dQ18f2hhQpP6/co65bYizNP5H3h+t9hGHG k3r2k8T+jpFPaddpZMvRvIVD8O2HvJZQTyY6Vvneuv6pnQWtr2DqPFn2YooRnzoa dbBMtpon+vYz6OWokC5QNWLqHWqvY9TmMfcVFUXE4AFse8vh4wJ8jJCNOFVp8On+ drhmmImUr1YylrtVOw== =xHmk -----END PGP SIGNATURE----- Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull uninitialized_var() macro removal from Kees Cook: "This is long overdue, and has hidden too many bugs over the years. The series has several "by hand" fixes, and then a trivial treewide replacement. - Clean up non-trivial uses of uninitialized_var() - Update documentation and checkpatch for uninitialized_var() removal - Treewide removal of uninitialized_var()" * tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: compiler: Remove uninitialized_var() macro treewide: Remove uninitialized_var() usage checkpatch: Remove awareness of uninitialized_var() macro mm/debug_vm_pgtable: Remove uninitialized_var() usage f2fs: Eliminate usage of uninitialized_var() macro media: sur40: Remove uninitialized_var() usage KVM: PPC: Book3S PR: Remove uninitialized_var() usage clk: spear: Remove uninitialized_var() usage clk: st: Remove uninitialized_var() usage spi: davinci: Remove uninitialized_var() usage ide: Remove uninitialized_var() usage rtlwifi: rtl8192cu: Remove uninitialized_var() usage b43: Remove uninitialized_var() usage drbd: Remove uninitialized_var() usage x86/mm/numa: Remove uninitialized_var() usage docs: deprecated.rst: Add uninitialized_var() |
|
|
Linus Torvalds
|
427714f258 |
tasklets API update for v5.9-rc1
- Prepare for tasklet API modernization (Romain Perier, Allen Pais, Kees Cook)
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Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull tasklets API update from Kees Cook:
"These are the infrastructure updates needed to support converting the
tasklet API to something more modern (and hopefully for removal
further down the road).
There is a 300-patch series waiting in the wings to get set out to
subsystem maintainers, but these changes need to be present in the
kernel first. Since this has some treewide changes, I carried this
series for -next instead of paining Thomas with it in -tip, but it's
got his Ack.
This is similar to the timer_struct modernization from a while back,
but not nearly as messy (I hope). :)
- Prepare for tasklet API modernization (Romain Perier, Allen Pais,
Kees Cook)"
* tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
tasklet: Introduce new initialization API
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
usb: gadget: udc: Avoid tasklet passing a global
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David S. Miller
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ee895a30ef |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net: 1) Flush the cleanup xtables worker to make sure destructors have completed, from Florian Westphal. 2) iifgroup is matching erroneously, also from Florian. 3) Add selftest for meta interface matching, from Florian Westphal. 4) Move nf_ct_offload_timeout() to header, from Roi Dayan. 5) Call nf_ct_offload_timeout() from flow_offload_add() to make sure garbage collection does not evict offloaded flow, from Roi Dayan. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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Stefano Brivio
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4cb47a8644 |
tunnels: PMTU discovery support for directly bridged IP packets
It's currently possible to bridge Ethernet tunnels carrying IP packets directly to external interfaces without assigning them addresses and routes on the bridged network itself: this is the case for UDP tunnels bridged with a standard bridge or by Open vSwitch. PMTU discovery is currently broken with those configurations, because the encapsulation effectively decreases the MTU of the link, and while we are able to account for this using PMTU discovery on the lower layer, we don't have a way to relay ICMP or ICMPv6 messages needed by the sender, because we don't have valid routes to it. On the other hand, as a tunnel endpoint, we can't fragment packets as a general approach: this is for instance clearly forbidden for VXLAN by RFC 7348, section 4.3: VTEPs MUST NOT fragment VXLAN packets. Intermediate routers may fragment encapsulated VXLAN packets due to the larger frame size. The destination VTEP MAY silently discard such VXLAN fragments. The same paragraph recommends that the MTU over the physical network accomodates for encapsulations, but this isn't a practical option for complex topologies, especially for typical Open vSwitch use cases. Further, it states that: Other techniques like Path MTU discovery (see [RFC1191] and [RFC1981]) MAY be used to address this requirement as well. Now, PMTU discovery already works for routed interfaces, we get route exceptions created by the encapsulation device as they receive ICMP Fragmentation Needed and ICMPv6 Packet Too Big messages, and we already rebuild those messages with the appropriate MTU and route them back to the sender. Add the missing bits for bridged cases: - checks in skb_tunnel_check_pmtu() to understand if it's appropriate to trigger a reply according to RFC 1122 section 3.2.2 for ICMP and RFC 4443 section 2.4 for ICMPv6. This function is already called by UDP tunnels - a new function generating those ICMP or ICMPv6 replies. We can't reuse icmp_send() and icmp6_send() as we don't see the sender as a valid destination. This doesn't need to be generic, as we don't cover any other type of ICMP errors given that we only provide an encapsulation function to the sender While at it, make the MTU check in skb_tunnel_check_pmtu() accurate: we might receive GSO buffers here, and the passed headroom already includes the inner MAC length, so we don't have to account for it a second time (that would imply three MAC headers on the wire, but there are just two). This issue became visible while bridging IPv6 packets with 4500 bytes of payload over GENEVE using IPv4 with a PMTU of 4000. Given the 50 bytes of encapsulation headroom, we would advertise MTU as 3950, and we would reject fragmented IPv6 datagrams of 3958 bytes size on the wire. We're exclusively dealing with network MTU here, though, so we could get Ethernet frames up to 3964 octets in that case. v2: - moved skb_tunnel_check_pmtu() to ip_tunnel_core.c (David Ahern) - split IPv4/IPv6 functions (David Ahern) Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> |