Improper locking in Linux kernel - CVE-2022-49304
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104690
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49304
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the sa1100_set_termios() function in drivers/tty/serial/sa1100.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49304
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/0976808d0d171ec837d4bd3e9f4ad4a00ab703b8
- https://git.kernel.org/stable/c/09a5958a2452ad22d0cb638711ef34ea1863a829
- https://git.kernel.org/stable/c/2cbfc38df580bff5b2fe19f21c1a7520efcc4b3b
- https://git.kernel.org/stable/c/34d91e555e5582cffdbcbb75517bc9217866823e
- https://git.kernel.org/stable/c/553213432ef0c295becdc08c0207d2094468f673
- https://git.kernel.org/stable/c/62b2caef400c1738b6d22f636c628d9f85cd4c4c
- https://git.kernel.org/stable/c/6e2273eefab54a521d9c59efb6e1114e742bdf41
- https://git.kernel.org/stable/c/85e20f8bd31a46d8c60103d0274a8ebe8f47f2b2
- https://git.kernel.org/stable/c/920f0ae7a129ffee98a106e3bbdfd61a2a59e939
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.247