Improper locking in Linux kernel - CVE-2023-52505
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91454
CSH Severity: Low
CVSS v4: 6.8 [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]
CVE-ID: CVE-2023-52505
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the lynx_28g_set_mode() and lynx_28g_probe() functions in drivers/phy/freescale/phy-fsl-lynx-28g.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2023-52505
Install update from vendor's website.
Linux kernel - addressed in versions 6.1.59, 6.5.8, 6.6
External References
- https://git.kernel.org/stable/c/6f901f8448c6b25ed843796b114471d2a3fc5dfb
- https://git.kernel.org/stable/c/c2d7c79898b427d263c64a4841987eec131f2d4e
- https://git.kernel.org/stable/c/139ad1143151a07be93bf741d4ea7c89e59f89ce
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.59
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6