SB20251230113 - Memory leak in Linux kernel realtek rtw89 driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230113
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2022-50863)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the rtw89_h2c_tx() function in drivers/net/wireless/realtek/rtw89/core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/216c59b66f2d0c428a4fdaa24dc28cd6be4a2bf6
- https://git.kernel.org/stable/c/d4b4f6ff8ff1b87d25977423cf38fb61744d0023
- https://git.kernel.org/stable/c/eae672f386049146058b9e5d3d33e9e4af9dca1d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1