Unchecked Return Value in Linux kernel - CVE-2026-64153
Published: July 20, 2026
Vulnerability identifier: #VU138471
CSH Severity: Low
CVSS v4.0: 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
CVE-ID: CVE-2026-64153
CWE-ID: CWE-252
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2026-64153
Install security update from vendor's repository.
Sources
- 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