SB2026072058 - Unchecked Return Value in Linux kernel drm msm driver
Published: July 20, 2026
Security Bulletin ID
SB2026072058
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) Unchecked Return Value (CVE-ID: CVE-2026-64153)
CWE-ID: CWE-252 - Unchecked Return Value
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 cause a denial of service.
The vulnerability exists due to improper handling of error codes in msm_iommu_map() in the drm/msm iommu mapping logic when mapping scatter-gather tables. A local user can trigger an error condition to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3457807aeb88077712f0a7cb65c3ca5120773d75
- https://git.kernel.org/stable/c/3a45af37733446e114bf19b0209fe7d8089bdb8b
- https://git.kernel.org/stable/c/3c2cdb7c07f664b77e2a75b50793b845d5742efa
- https://git.kernel.org/stable/c/3e3c3c95ef4fe17231a9149e27bcfc9dae2dd89f
- https://git.kernel.org/stable/c/55e0f0d1c1a4ee1e46da7da4d443eb3044fb3851
- https://git.kernel.org/stable/c/7256e54583aee21e23929e7554278c2f5c1a08b1
- https://git.kernel.org/stable/c/f4e37f3df436c2bdd2621c21f9c72c8f149a221d