SB20250916158 - NULL pointer dereference in Linux kernel iwlwifi pcie driver
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916158
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-2023-53251)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the iwl_pcie_irq_rx_msix_handler() function in drivers/net/wireless/intel/iwlwifi/pcie/rx.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/1902f1953b8ba100ee8705cb8a6f1a9795550eca
- https://git.kernel.org/stable/c/2d690495eb2766d58e25c83676f422219c4fcf18
- https://git.kernel.org/stable/c/390e44efcf4d390b5053ad112553155d2d097c73
- https://git.kernel.org/stable/c/3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2
- https://git.kernel.org/stable/c/f71d0fc407dd028416bec002ddcc62f5acb0346a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4