Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-53319
Published: June 29, 2026
Vulnerability identifier: #VU135714
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53319
CWE-ID: CWE-703
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 expected error conditions in wbt_init_enable_default() when processing ioctl(BLKPG) requests during MTD partition creation. A local user can trigger memory allocation failures to cause a denial of service.
The issue results in a spurious kernel warning and stack trace rather than memory corruption.
How to mitigate CVE-2026-53319
Install security update from vendor's repository.