kernel/linux
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ synced 2026-11-08 18:57:22 +00:00
Code Issues Releases Packages Activity
No description
1,324,748 commits 117 branches 5,824 tags 6.2 GiB
  • C 96.8%
  • Assembly 0.9%
  • Rust 0.7%
  • Shell 0.6%
  • Python 0.5%
  • Other 0.3%
Find a file
Damien Le Moal c8cdc025a6 block: fix NULL pointer dereference in blk_zone_reset_all_bio_endio() 
commit c2b8d20628 upstream.

For zoned block devices that do not need zone write plugs (e.g. most
device mapper devices that support zones), the disk hash table of zone
write plugs is NULL. For such devices, blk_zone_reset_all_bio_endio()
should not attempt to scan this has table as that causes a NULL pointer
dereference.

Fix this by checking that the disk does have zone write plugs using the
atomic counter. This is equivalent to checking for a non-NULL hash table
but has the advantage to also speed up the execution of
blk_zone_reset_all_bio_endio() for devices that do use zone write plugs
but do not have any plug in the hash table (e.g. a disk with only full
zones).

Fixes: efae226c2e ("block: handle zone management operations completions")
Reported-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-08 10:15:06 +01:00
arch powerpc/pseries/cmm: adjust BALLOON_MIGRATE when migrating pages 2026-01-08 10:15:05 +01:00
block block: fix NULL pointer dereference in blk_zone_reset_all_bio_endio() 2026-01-08 10:15:06 +01:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: seqiv - Do not use req->iv after crypto_aead_encrypt 2026-01-08 10:14:32 +01:00
Documentation soundwire: stream: extend sdw_alloc_stream() to take 'type' parameter 2026-01-08 10:15:04 +01:00
drivers vfio/pci: Disable qword access to the PCI ROM bar 2026-01-08 10:15:05 +01:00
fs iomap: allocate s_dio_done_wq for async reads as well 2026-01-08 10:15:06 +01:00
include vfio/pci: Disable qword access to the PCI ROM bar 2026-01-08 10:15:05 +01:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:33:50 +02:00
io_uring io_uring: fix min_wait wakeups for SQPOLL 2026-01-08 10:14:25 +01:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:11:22 +01:00
kernel sched_ext: Fix missing post-enqueue handling in move_local_task_to_local_dsq() 2026-01-08 10:14:58 +01:00
lib idr: fix idr_alloc() returning an ID out of range 2026-01-08 10:14:50 +01:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm/damon/tests/vaddr-kunit: handle alloc failures on damon_do_test_apply_three_regions() 2026-01-08 10:15:06 +01:00
net net: use dst_dev_rcu() in sk_setup_caps() 2026-01-08 10:15:01 +01:00
rust rust: kbuild: workaround rustdoc doctests modifier bug 2025-11-24 10:36:07 +01:00
samples samples/ftrace: Adjust LoongArch register restore order in direct calls 2026-01-08 10:14:50 +01:00
scripts kbuild: fix compilation of dtb specified on command-line without make rule 2026-01-08 10:14:34 +01:00
security KEYS: trusted: Fix a memory leak in tpm2_load_cmd 2026-01-08 10:14:13 +01:00
sound ASoC: renesas: rz-ssi: Fix rz_ssi_priv::hw_params_cache::sample_width 2026-01-08 10:15:04 +01:00
tools tools/mm/page_owner_sort: fix timestamp comparison for stable sorting 2026-01-08 10:14:50 +01:00
usr kbuild: uapi: Strip comments before size type check 2025-11-13 15:34:35 -05:00
virt KVM: Disallow toggling KVM_MEM_GUEST_MEMFD on an existing memslot 2026-01-08 10:14:21 +01:00
.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: give Clippy the minimum supported Rust version 2025-08-01 09:48:44 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore Add Jeff Kirsher to .get_maintainer.ignore 2024-03-08 11:36:54 +00:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: introduce .clippy.toml 2025-03-13 13:01:42 +01:00
.mailmap mailmap: add entry for Thorsten Blum 2024-11-07 14:14:59 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove self from DSA entry 2024-11-03 12:52:38 -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 staging: rtl8712: Remove driver using deprecated API wext 2025-12-07 06:25:02 +09:00
Makefile Linux 6.12.63 2025-12-18 13:55:23 +01:00
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.