CVE-2023-4389 Information

Description

A flaw was found in btrfs_get_root_ref in fs/btrfs/disk-io.c in the btrfs filesystem in the Linux Kernel due to a double decrement of the reference count. This issue may allow a local attacker with user privilege to crash the system or may lead to leaked internal kernel information.

Reference

https://patchwork.kernel.org/project/linux-btrfs/patch/20220324134454.15192-1-baijiaju1990@gmail.com/ https://access.redhat.com/security/cve/CVE-2023-4389 https://bugzilla.redhat.com/show_bug.cgi?id=2219271