CVE-2026-31597

medium Red Hat
EPSS Score
0.0%
Exploitation probability in 30 days
Top 95% most likely to be exploited
Published: April 24, 2026 (20 days ago)
Last Modified: April 24, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's OCFS2 (Oracle Cluster File System version 2) component. A local attacker could exploit a use-after-free vulnerability when `filemap_fault()` drops the `mmap_lock` before returning `VM_FAULT_RETRY`. This allows a concurrent `munmap()` operation to free a `vm_area_struct`, leading to `ocfs2_fault()` dereferencing a dangling pointer. This issue can result in system instability or crashes.

CWE

CWE-364

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org