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Roberto Sassu 9bac4a2b73 memfd: check for non-NULL file_seals in memfd_create() syscall 
[ Upstream commit 935d44acf621aa0688fef8312dec3e5940f38f4e ]

Ensure that file_seals is non-NULL before using it in the memfd_create()
syscall.  One situation in which memfd_file_seals_ptr() could return a
NULL pointer when CONFIG_SHMEM=n, oopsing the kernel.

Link: https://lkml.kernel.org/r/20230607132427.2867435-1-roberto.sassu@huaweicloud.com
Fixes: 47b9012ecdc7 ("shmem: add sealing support to hugetlb-backed memfd")
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Cc: Marc-Andr Lureau <marcandre.lureau@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-28 10:29:45 +02:00
arch
x86/mm: Avoid using set_pgd() outside of real PGD pages
2023-06-28 10:29:45 +02:00
block
blk-iocost: avoid 64-bit division in ioc_timer_fn
2023-06-14 11:13:00 +02:00
certs
certs/blacklist_hashes.c: fix const confusion in certs blacklist
2022-06-22 14:22:01 +02:00
crypto
KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()
2023-06-09 10:32:34 +02:00
Documentation
Remove DECnet support from kernel
2023-06-21 15:59:15 +02:00
drivers
regmap: spi-avmm: Fix regmap_bus max_raw_write
2023-06-28 10:29:44 +02:00
fs
nilfs2: prevent general protection fault in nilfs_clear_dirty_page()
2023-06-28 10:29:45 +02:00
include
writeback: fix dereferencing NULL mapping->host on writeback_page_template
2023-06-28 10:29:44 +02:00
init
kbuild: Add CONFIG_PAHOLE_VERSION
2023-02-25 12:06:45 +01:00
io_uring
io_uring/net: disable partial retries for recvmsg with cmsg
2023-06-28 10:29:44 +02:00
ipc
ipc/sem: Fix dangling sem_array access in semtimedop race
2022-12-08 11:28:45 +01:00
kernel
cgroup: Do not corrupt task iteration when rebinding subsystem
2023-06-28 10:29:43 +02:00
lib
test_firmware: fix a memory leak with reqs buffer
2023-06-21 15:59:12 +02:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
memfd: check for non-NULL file_seals in memfd_create() syscall
2023-06-28 10:29:45 +02:00
net
neighbour: delete neigh_lookup_nodev as not used
2023-06-21 15:59:19 +02:00
samples
samples/bpf: Fix fout leak in hbm's run_bpf_prog
2023-05-24 17:36:45 +01:00
scripts
gcc-plugins: Reorganize gimple includes for GCC 13
2023-06-14 11:12:59 +02:00
security
selinux: don't use make's grouped targets feature yet
2023-06-09 10:32:32 +02:00
sound
ALSA: hda/realtek: Add a quirk for Compaq N14JP6
2023-06-21 15:59:15 +02:00
tools
selftests: mptcp: join: skip check if MIB counter not supported
2023-06-28 10:29:41 +02:00
usr
usr/include/Makefile: add linux/nfc.h to the compile-test coverage
2022-02-01 17:27:15 +01:00
virt
KVM: Avoid illegal stage2 mapping on invalid memory slot
2023-06-28 10:29:42 +02:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: add Andrej Shadura
2021-10-18 20:22:03 -10:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Remove DECnet support from kernel
2023-06-21 15:59:15 +02:00
Makefile
Linux 5.15.118
2023-06-21 15:59:19 +02:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -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 Restructured Text 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.
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