Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-90396
Published: September 18, 2026
Vulnerability identifier: #VU151076
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-90396
CWE-ID: CWE-772
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper error handling in the __blkdev_direct_IO function when an integrity mapping fails during a direct I/O operation with metadata. A local user can perform a direct I/O operation with metadata during an integrity mapping failure to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90396
Install security update from vendor's repository.