This security bulletin contains one low risk vulnerability.
CWE-416 - Use After Free
Exploit availability: NoDescription
The vulnerability allows a local non-authenticated attacker to execute arbitrary code.
In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.Mitigation
Install update from vendor's website.Vulnerable software versions
Linux kernel: 5.4 - 5.6.4
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?