CVE-2023-53377

In the Linux kernel, the following vulnerability has been resolved:

cifs: prevent use-after-free by freeing the cfile later

In smb2_compound_op we have a possible use-after-free
which can cause hard to debug problems later on.

This was revealed during stress testing with KASAN enabled
kernel. Fixing it by moving the cfile free call to
a few lines below, after the usage.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
VendorProductVersion
linuxlinux_kernel
6.0.16 ≤
𝑥
< 6.1.39
linuxlinux_kernel
6.2 ≤
𝑥
< 6.3.13
linuxlinux_kernel
6.4 ≤
𝑥
< 6.4.4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bullseye (security)
5.10.237-1
fixed
bookworm
6.1.148-1
fixed
bookworm (security)
6.1.147-1
fixed
trixie
6.12.43-1
fixed
trixie (security)
6.12.41-1
fixed
forky
6.16.7-1
fixed
sid
6.16.7-1
fixed
Common Weakness Enumeration
References
https://git.kernel.org/stable/c/33f736187d08f6bc822117629f263b97d3df4165
https://git.kernel.org/stable/c/4fe07d55a5461e66a55fbefb57f85ff0facea32b
https://git.kernel.org/stable/c/b6353518ef8180816e863aa23b06456f395404d6
https://git.kernel.org/stable/c/d017880782cf71f8820ee4a2002843893176501d