SB20251230147 - Use-after-free in Linux kernel misc driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230147
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-54326)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the pci_endpoint_test_remove() function in drivers/misc/pci_endpoint_test.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/14bdee38e96c7d37ca15e7bea50411eee25fe315
- https://git.kernel.org/stable/c/38d12bcf4e2ce3d285eb29644a79a54f42040fab
- https://git.kernel.org/stable/c/c2dba13bc0c62b79a3cbe4bfe5faa32231bf9b55
- https://git.kernel.org/stable/c/cdf9a7e2cdc7a5464e3cc6d0b715ba2b1d215521
- https://git.kernel.org/stable/c/dd2210379205fcd23a9d8869b0cef90e3770577c
- https://git.kernel.org/stable/c/f61b7634a3249d12b9daa36ffbdb9965b6f24c6c
- https://git.kernel.org/stable/c/fb7f8bdb886f2ebf35ee5edaf2bf5f02b063ddb7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291