SB20260918149 - Integer overflow in Linux kernel iwlwifi fw driver
Published: September 18, 2026
Security Bulletin ID
SB20260918149
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) Integer overflow (CVE-ID: CVE-2026-93065)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to integer overflow in iwl_fwrt_dump_error_logs when processing firmware that advertises more than 255 PC entries. A local user can trigger processing of firmware advertising more than 255 PC entries to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/71e67b4b59337b2f9f4fef976a27de2dad7aabf2
- https://git.kernel.org/stable/c/769e1910d41fdd01453cef4ae032a3c162f029f8
- https://git.kernel.org/stable/c/8d74cb5fbb7a0d825403a74d18386dc7b22426a9
- https://git.kernel.org/stable/c/8d8a526f3ec659194f846a2cb33844d9f6cb9995
- https://git.kernel.org/stable/c/9710b20d09d847e07e190087b0b529673d3f1fad