CVE-2026-43063

A flaw was found in the Linux kernel's XFS filesystem. When recovering attributes, if the xlog_recovery_iget* function fails to obtain a valid pointer, a subsequent irele operation attempts to release an invalid memory address. This dangling pointer issue can be exploited by a local attacker, potentially leading to a system crash and a denial of service (DoS).

Red Hat acknowledges the upstream Linux kernel correction for «xfs» as described in COMMENT_ZERO. Fixes are delivered through standard kernel errata for supported products. Operational exposure depends on whether this subsystem or driver is active in your configuration.

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.

To mitigate this issue, prevent the xfs module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.