CVE-2026-23423
kernel: btrfs: free pages on error in btrfs_uring_read_extent()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 3, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's btrfs file system. This vulnerability occurs in the btrfs_uring_read_extent() function, where memory allocated for 'pages' is not properly freed when errors occur during read operations. This oversight can lead to resource exhaustion, potentially causing a Denial of Service (DoS) for affected systems.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime