Integer underflow in Linux kernel - CVE-2023-54259
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120836
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-54259
CWE-ID: CWE-191
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the sdw_nread(), sdw_nwrite() and sdw_handle_slave_alerts() functions in drivers/soundwire/bus.c. A local user can execute arbitrary code.
Affected software
Linux kernel
How to mitigate CVE-2023-54259
Install update from vendor's repository.
Linux kernel - addressed in versions 6.1.30, 6.3.4, 6.4
External References
- https://git.kernel.org/stable/c/203aa4374c433159f163acde2d0bd4118f23bbaf
- https://git.kernel.org/stable/c/4e5e9da139c007dfc397a159093b4c4187ee67fa
- https://git.kernel.org/stable/c/e9537962519e88969f5f69cd0571eb4f6984403c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4