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Pavel Begunkov e004d86dc5 io_uring/zcrx: fix null ifq on area destruction 
commit 720df2310b upstream.

Dan reports that ifq can be null when infering arguments for
io_unaccount_mem() from io_zcrx_free_area(). Fix it by always setting a
correct ifq.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202507180628.gBxrOgqr-lkp@intel.com/
Fixes: 262ab20518 ("io_uring/zcrx: account area memory")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20670d163bb90dba2a81a4150f1125603cefb101.1753091564.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-20 18:41:44 +02:00
arch KVM: VMX: Preserve host's DEBUGCTLMSR_FREEZE_IN_SMM while running the guest 2025-08-20 18:41:43 +02:00
block block: Introduce bio_needs_zone_write_plugging() 2025-08-20 18:41:35 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: jitter - fix intermediary handling 2025-08-20 18:41:24 +02:00
Documentation sphinx: kernel_abi: fix performance regression with O=<dir> 2025-08-20 18:41:22 +02:00
drivers dm: split write BIOs on zone boundaries when zone append is not emulated 2025-08-20 18:41:44 +02:00
fs ocfs2: reset folio to NULL when get folio fails 2025-08-20 18:41:40 +02:00
include ata: libata-sata: Add link_power_management_supported sysfs attribute 2025-08-20 18:41:43 +02:00
init io_uring: fix breakage in EXPERT menu 2025-08-15 16:38:23 +02:00
io_uring io_uring/zcrx: fix null ifq on area destruction 2025-08-20 18:41:44 +02:00
ipc - The 3 patch series "hung_task: extend blocking task stacktrace dump to 2025-05-31 19:12:53 -07:00
kernel rcu: Fix racy re-initialization of irq_work causing hangs 2025-08-20 18:41:43 +02:00
lib lib/sbitmap: convert shallow_depth from one word to the whole sbitmap 2025-08-20 18:41:31 +02:00
LICENSES LICENSES: add CC0-1.0 license text 2025-05-21 14:54:17 +02:00
mm mm/kmemleak: avoid deadlock by moving pr_warn() outside kmemleak_lock 2025-08-20 18:41:41 +02:00
net net/sched: ets: use old 'nbands' while purging unused classes 2025-08-20 18:41:40 +02:00
rust rust: workaround rustdoc target modifiers bug 2025-08-20 18:41:35 +02:00
samples samples/damon/mtier: support boot time enable setup 2025-08-20 18:41:35 +02:00
scripts kconfig: lxdialog: fix 'space' to (de)select options 2025-08-20 18:41:31 +02:00
security apparmor: fix x_table_lookup when stacking is not the first entry 2025-08-20 18:41:29 +02:00
sound ASoC: fsl_sai: replace regmap_write with regmap_update_bits 2025-08-20 18:41:33 +02:00
tools tools/nolibc: fix spelling of FD_SETBITMASK in FD_* macros 2025-08-20 18:41:42 +02:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt KVM: Allow CPU to reschedule while setting per-page memory attributes 2025-06-24 12:20:17 -07:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +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 gitignore: allow .pylintrc to be tracked 2025-08-15 16:39:03 +02:00
.mailmap 11 hotfixes. 9 are cc:stable and the remainder address post-6.15 issues 2025-07-24 19:13:30 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.rustfmt.toml
COPYING
CREDITS mm: update MAINTAINERS entry for HMM 2025-07-19 19:26:16 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS 11 hotfixes. 9 are cc:stable and the remainder address post-6.15 issues 2025-07-24 19:13:30 -07:00
Makefile Linux 6.16.1 2025-08-15 16:39:37 +02:00
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.