Improper control of a resource through its lifetime in Linux kernel - CVE-2026-53284
Published: June 29, 2026
Vulnerability identifier: #VU135753
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-53284
CWE-ID: CWE-664
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper state management in btrfs_write_and_wait_transaction() and the dirty_pages io tree when handling failed transaction writeback. A remote attacker can trigger write errors that cause dirty extent buffer records to be released prematurely to cause a denial of service.
The issue can leave dirty extent buffers uncleared during transaction cleanup and trigger warnings during filesystem unmount.
How to mitigate CVE-2026-53284
Install security update from vendor's repository.