CVE-2026-92503

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ABBA deadlock in ext4xattrinodecachefind Syzbot/stress-ng reported an ABBA deadlock in ext4 when exercising concurrent xattr workloads using the eainode mount/format option. The deadlock occurs between the running...

CVE-2026-92503

CVE-2026-92503 is an ABBA deadlock in the Linux kernel's ext4 filesystem, specifically in ext4_xattr_inode_cache_find(). The deadlock occurs between a running transaction holding a reference to a shared mbcache_entry and the eviction thread waiting for that reference to be released, when the exte...