Jakub Kicinski a215b57239 netlink: make sure we allow at least one dump skb ... Commit under Fixes tightened up the memory accounting for Netlink sockets. Looks like the accounting is too strict for some existing use cases, Marek reported issues with nl80211 / WiFi iw CLI. To reduce number of iterations Netlink dumps try to allocate messages based on the size of the buffer passed to previous recvmsg() calls. If user space uses a larger buffer in recvmsg() than sk_rcvbuf we will allocate an skb we won't be able to queue. Make sure we always allow at least one skb to be queued. Same workaround is already present in netlink_attachskb(). Alternative would be to cap the allocation size to rcvbuf - rmem_alloc but as I said, the workaround is already present in other places. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/9794af18-4905-46c6-b12c-365ea2f05858@samsung.com Fixes: ae8f160e7e ("netlink: Fix wraparounds of sk->sk_rmem_alloc.") Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Link: https://patch.msgid.link/20250711001121.3649033-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-07-11 07:31:47 -07:00
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6lowpan	…
9p	netfs: Fix the request's work item to not require a ref	2025-05-21 14:35:20 +02:00
802	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
8021q	net: 802: Remove unused p8022 code	2025-04-22 07:04:02 -07:00
appletalk	net: appletalk: Fix device refcount leak in atrtr_create()	2025-07-10 18:01:08 -07:00
atm	atm: clip: Fix NULL pointer dereference in vcc_sendmsg()	2025-07-09 19:09:36 -07:00
ax25	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
batman-adv	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
bluetooth	Bluetooth: hci_event: Fix not marking Broadcast Sink BIS as connected	2025-07-03 11:37:43 -04:00
bpf	selftests/bpf: Add test to access const void pointer argument in tracing program	2025-04-23 11:26:22 -07:00
bridge	bridge: mcast: Fix use-after-free during router port configuration	2025-06-23 18:19:10 -07:00
caif	rtnetlink: Pack newlink() params into struct	2025-02-21 15:28:02 -08:00
can	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
ceph	A small CephFS encryption-related fix and a dead code cleanup.	2025-04-25 15:51:28 -07:00
core	net: selftests: fix TCP packet checksum	2025-06-26 10:50:49 +02:00
dcb	…
devlink	devlink: use DEVLINK_VAR_ATTR_TYPE_* instead of NLA_* in fmsg	2025-05-06 18:21:11 -07:00
dns_resolver	…
dsa	net: dsa: tag_brcm: legacy: fix pskb_may_pull length	2025-05-30 19:20:18 -07:00
ethernet	…
ethtool	Including fixes from bluetooth and wireless.	2025-06-12 09:50:36 -07:00
handshake	…
hsr	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
ieee802154	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
ife	…
ipv4	tcp: refine sk_rcvbuf increase for ooo packets	2025-07-09 19:24:10 -07:00
ipv6	gre: Fix IPv6 multicast route creation.	2025-07-10 18:10:47 -07:00
iucv	s390: Convert MACHINE_IS_[LPAR|VM|KVM], etc, machine_is_[lpar|vm|kvm]()	2025-03-04 17:18:07 +01:00
kcm	…
key	xfrm: Migrate offload configuration	2025-04-17 11:00:03 +02:00
l2tp	net: move misc netdev_lock flavors to a separate header	2025-03-08 09:06:50 -08:00
l3mdev	net: fib_rules: Fix iif / oif matching on L3 master device	2025-04-15 17:54:56 -07:00
lapb	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
llc	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
mac80211	wifi: mac80211: add the virtual monitor after reconfig complete	2025-07-10 13:27:14 +02:00
mac802154	…
mctp	net: mctp: use nlmsg_payload() for netlink message data extraction	2025-05-26 17:38:27 +02:00
mpls	mpls: Use rcu_dereference_rtnl() in mpls_route_input_rcu().	2025-06-17 18:21:59 -07:00
mptcp	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
ncsi	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
netfilter	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
netlabel	calipso: unlock rcu before returning -EAFNOSUPPORT	2025-06-05 08:03:38 -07:00
netlink	netlink: make sure we allow at least one dump skb	2025-07-11 07:31:47 -07:00
netrom	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
nfc	NFC: nci: uart: Set tty->disc_data only in success path	2025-06-19 08:33:54 -07:00
nsh	…
openvswitch	openvswitch: Allocate struct ovs_pcpu_storage dynamically	2025-06-17 14:47:46 +02:00
packet	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
phonet	…
psample	…
qrtr	…
rds	replace strncpy with strscpy_pad	2025-05-26 22:28:44 +02:00
rfkill	…
rose	rose: fix dangling neighbour pointers in rose_rt_device_down()	2025-07-01 19:28:48 -07:00
rxrpc	rxrpc: Fix oops due to non-existence of prealloc backlog struct	2025-07-09 19:41:44 -07:00
sched	net/sched: sch_qfq: Fix null-deref in agg_dequeue	2025-07-10 11:08:35 +02:00
sctp	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
shaper	…
smc	smc: Fix lockdep false-positive for IPPROTO_SMC.	2025-04-11 14:14:26 -07:00
strparser	strparser: Remove unused __strp_unpause	2025-05-05 16:48:12 -07:00
sunrpc	sunrpc: fix loop in gss seqno cache	2025-06-23 11:01:15 -04:00
switchdev	net: switchdev: Convert blocking notification chain to a raw one	2025-03-11 11:30:28 +01:00
tipc	tipc: Fix use-after-free in tipc_conn_close().	2025-07-07 18:38:24 -07:00
tls	bpf-next-6.16	2025-05-28 15:52:42 -07:00
unix	af_unix: Don't set -ECONNRESET for consumed OOB skb.	2025-06-24 10:10:07 +02:00
vmw_vsock	vsock: Fix IOCTL_VM_SOCKETS_GET_LOCAL_CID to check also `transport_local`	2025-07-08 08:39:49 -07:00
wireless	wifi: prevent A-MSDU attacks in mesh networks	2025-07-07 10:54:13 +02:00
x25	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
xdp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-05-22 09:42:41 -07:00
xfrm	treewide, timers: Rename from_timer() to timer_container_of()	2025-06-08 09:07:37 +02:00
Kconfig	net: Kconfig NET_DEVMEM selects GENERIC_ALLOCATOR	2025-05-27 17:31:42 -07:00
Kconfig.debug	…
Makefile	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
compat.c	…
devres.c	…
socket.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-03-26 09:32:10 -07:00
sysctl_net.c	…