SB20260824205 - Use-after-free in Linux kernel dibs driver
Published: August 24, 2026
Security Bulletin ID
SB20260824205
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-74629)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service or execute arbitrary code.
The vulnerability exists due to use-after-free in dmb_clientid_arr handling in the dibs device code when an interrupt handler accesses the array after dibs_dev_del(). A local user can trigger use of the affected device state to cause a denial of service or execute arbitrary code.
Remediation
Install update from vendor's website.