SB20251226201 - NULL pointer dereference in Linux kernel rpmsg driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226201
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) NULL pointer dereference (CVE-ID: CVE-2023-54049)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the qcom_glink_alloc_channel() function in drivers/rpmsg/qcom_glink_native.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/13928a837e0f014dac0322dd9f8a67c486e7f232
- https://git.kernel.org/stable/c/174cf8853857c190a3c4f1f1d2d06cfd095fe859
- https://git.kernel.org/stable/c/5197498c902502127a47abda5359dd7f1d41946f
- https://git.kernel.org/stable/c/71ac2ffd7f80fdd350486f6645dc48456e55a59b
- https://git.kernel.org/stable/c/abd740db896b3c588dced175af98b95852c1854b
- https://git.kernel.org/stable/c/b5c9ee8296a3760760c7b5d2e305f91412adc795
- https://git.kernel.org/stable/c/cae0787e408c30a575760a531ccb69a6b48bbfaf
- https://git.kernel.org/stable/c/e3734a9558afac91df3c655a6f2376b9d14933b7
- https://git.kernel.org/stable/c/efa7f31669f04084ed5996ed467ba529f4c90467
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.257