SB2025122684 - Memory leak in Linux kernel realtek rtl8xxxu driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122684
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-2023-54036)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the rtl8xxxu_c2hcmd_callback() function in drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_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/35fb0e275af1aa1ca0a9784417e90f988aaf8e78
- https://git.kernel.org/stable/c/430f9f9bec53a75f9ccc53e156a66f13fc098b83
- https://git.kernel.org/stable/c/93c3f34ec02fc81188d328287d4fddd498ccddea
- https://git.kernel.org/stable/c/b39f662ce1648db0b9de32e6a849b098480793cb
- https://git.kernel.org/stable/c/f39a86b4efd270947ee252cc32a30b0aef492d65
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.3