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Muchun Song 9ab96b524d hugetlb: fix NULL pointer dereference in trace_hugetlbfs_alloc_inode
hugetlb_file_setup() will pass a NULL @dir to hugetlbfs_get_inode(), so we
will access a NULL pointer for @dir.  Fix it and set __entry->dr to 0 if
@dir is NULL.  Because ->i_ino cannot be 0 (see get_next_ino()), there is
no confusing if user sees a 0 inode number.

Link: https://lkml.kernel.org/r/20250106033118.4640-1-songmuchun@bytedance.com
Fixes: 318580ad7f ("hugetlbfs: support tracepoint")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reported-by: Cheung Wall <zzqq0103.hey@gmail.com>
Closes: https://lore.kernel.org/linux-mm/02858D60-43C1-4863-A84F-3C76A8AF1F15@linux.dev/T/#
Reviewed-by: Hongbo Li <lihongbo22@huawei.com>
Cc: cheung wall <zzqq0103.hey@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-12 19:03:36 -08:00
Documentation 25 hotfixes. 16 are cc:stable. 18 are MM and 7 are non-MM. 2025-01-05 10:37:45 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
arch x86/execmem: fix ROX cache usage in Xen PV guests 2025-01-12 19:03:35 -08:00
block block: avoid to reuse `hctx` not removed from cpuhp callback list 2024-12-18 07:25:37 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: rsassa-pkcs1 - Copy source data for SG list 2024-12-10 13:34:05 +08:00
drivers A randconfig build fix and a performance fix: 2025-01-05 10:28:34 -08:00
fs 25 hotfixes. 16 are cc:stable. 18 are MM and 7 are non-MM. 2025-01-05 10:37:45 -08:00
include hugetlb: fix NULL pointer dereference in trace_hugetlbfs_alloc_inode 2025-01-12 19:03:36 -08:00
init - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
io_uring io_uring/kbuf: use pre-committed buffer address for non-pollable file 2025-01-03 09:38:37 -07:00
ipc - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
kernel 25 hotfixes. 16 are cc:stable. 18 are MM and 7 are non-MM. 2025-01-05 10:37:45 -08:00
lib maple_tree: reload mas before the second call for mas_empty_area 2024-12-30 17:59:07 -08:00
mm mm: fix div by zero in bdi_ratio_from_pages 2025-01-12 19:03:36 -08:00
net Nothing major here. Over the last two weeks we gathered only around 2025-01-03 14:36:54 -08:00
rust workqueue: Fixes for v6.13-rc5 2025-01-03 15:03:56 -08:00
samples BPF fixes: 2024-12-06 15:07:48 -08:00
scripts scripts/decode_stacktrace.sh: fix decoding of lines with an additional info 2025-01-12 19:03:34 -08:00
security selinux/stable-6.13 PR 20241217 2024-12-18 12:10:15 -08:00
sound sound fixes for 6.13-rc6 2025-01-03 10:54:51 -08:00
tools tools: fix atomic_set() definition to set the value correctly 2025-01-12 19:03:35 -08:00
usr kbuild: Drop support for include/asm-<arch> in headers_check.pl 2024-12-21 11:43:17 +09:00
virt VFIO updates for v6.13 2024-11-27 12:57:03 -08:00
.clang-format clang-format: Update with v6.11-rc1's `for_each` macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: enable Clippy's `check-private-items` 2024-10-07 21:39:57 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
.mailmap mailmap: modify the entry for Mathieu Othacehe 2024-12-30 17:59:08 -08:00
.rustfmt.toml rust: add `.rustfmt.toml` 2022-09-28 09:02:20 +02:00
COPYING
CREDITS cgroup: Changes for v6.13 2024-11-20 09:54:49 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS 25 hotfixes. 16 are cc:stable. 18 are MM and 7 are non-MM. 2025-01-05 10:37:45 -08:00
Makefile Linux 6.13-rc6 2025-01-05 14:13:40 -08:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.