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Filename Latest commit message Latest commit date
Pali Rohár 7b222d6cb8 cifs: Fix buffer overflow when parsing NFS reparse points
commit e2a8910af01653c1c268984855629d71fb81f404 upstream.

ReparseDataLength is sum of the InodeType size and DataBuffer size.
So to get DataBuffer size it is needed to subtract InodeType's size from
ReparseDataLength.

Function cifs_strndup_from_utf16() is currentlly accessing buf->DataBuffer
at position after the end of the buffer because it does not subtract
InodeType size from the length. Fix this problem and correctly subtract
variable len.

Member InodeType is present only when reparse buffer is large enough. Check
for ReparseDataLength before accessing InodeType to prevent another invalid
memory access.

Major and minor rdev values are present also only when reparse buffer is
large enough. Check for reparse buffer size before calling reparse_mkdev().

Fixes: d5ecebc490 ("smb3: Allow query of symlinks stored as reparse points")
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
[use variable name symlink_buf, the other buf->InodeType accesses are
not used in current version so skip]
Signed-off-by: Mahmoud Adam <mngyadam@amazon.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-12-14 19:44:21 +01:00
arch x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB 2024-12-14 19:44:20 +01:00
block blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race 2024-11-08 16:20:48 +01:00
certs
crypto crypto: aead,cipher - zeroize key buffer after use 2024-11-08 16:20:33 +01:00
Documentation dt-bindings: gpu: Convert Samsung Image Rotator to dt-schema 2024-11-08 16:20:52 +01:00
drivers regulator: rk808: Add apply_bit for BUCK3 on RK809 2024-12-14 19:44:20 +01:00
fs cifs: Fix buffer overflow when parsing NFS reparse points 2024-12-14 19:44:21 +01:00
include mm: add remap_pfn_range_notrack 2024-11-17 14:58:53 +01:00
init init: open /initrd.image with O_LARGEFILE 2024-04-13 12:51:36 +02:00
ipc ipc: replace costly bailout check in sysvipc_find_ipc() 2024-09-04 13:15:02 +02:00
kernel bpf: use kvzmalloc to allocate BPF verifier environment 2024-11-17 14:58:53 +01:00
lib debugobjects: Fix conditions in fill_pool() 2024-11-08 16:20:34 +01:00
LICENSES
mm mm: revert "mm: shmem: fix data-race in shmem_getattr()" 2024-12-14 19:44:19 +01:00
net ipmr: Fix access to mfc_cache_list without lock held 2024-12-14 19:44:21 +01:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
scripts kbuild: Use uname for LINUX_COMPILE_HOST detection 2024-12-14 19:44:19 +01:00
security security/keys: fix slab-out-of-bounds in key_task_permission 2024-11-17 14:58:50 +01:00
sound ASoC: stm: Prevent potential division by zero in stm32_sai_get_clk_div() 2024-12-14 19:44:21 +01:00
tools selftests/watchdog-test: Fix system accidentally reset after watchdog-test 2024-12-14 19:44:20 +01:00
usr
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-11-08 16:20:47 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-11-08 16:20:33 +01:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS iio: stx104: Move to addac subdirectory 2023-08-30 16:27:12 +02:00
Makefile Linux 5.4.286 2024-11-17 14:58:53 +01:00
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.