SB20251226218 - NULL pointer dereference in Linux kernel iwlwifi mvm driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226218
CSH 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 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-54029)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
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_mvm_max_amsdu_size() function in drivers/net/wireless/intel/iwlwifi/mvm/tx.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/4489aa868bc6343afdaf5ef324af5b1f64962b25
- https://git.kernel.org/stable/c/63e2d06adf6b0842132ba89efdf8fada5f7ff1ac
- https://git.kernel.org/stable/c/b2bc600cced23762d4e97db8989b18772145604f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.30
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4