SB20260918168 - Division by zero in Linux kernel intel iwlwifi driver
Published: September 18, 2026
Security Bulletin ID
SB20260918168
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Division by zero (CVE-ID: CVE-2026-93062)
CWE-ID: CWE-369 - Divide By Zero
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to division by zero in iwl_dbg_tlv_alloc_fragments when processing firmware monitor configuration data with a zero required size or fragment count. A local user can trigger processing of such configuration data to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/11dde137f1258004bd1ed76ea2480a641e1fb753
- https://git.kernel.org/stable/c/6df26657c626b63b5a47026128cc021f66722a41
- https://git.kernel.org/stable/c/9318bc0c41b24705690cf80d1596cf6b711e7027
- https://git.kernel.org/stable/c/bc7a7ad93070879c74cdcb107ebb1a02ec212712
- https://git.kernel.org/stable/c/f26f72c2448829701d7c3e840fac9d168a98a955