medium5.5
CVE-2021-4149
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs.
Impact
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 5.15 Version 5.15 |
| Debian | Debian Linux | Version 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=2026485
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://lkml.org/lkml/2021/10/18/885
- https://lkml.org/lkml/2021/9/13/2565
- https://bugzilla.redhat.com/show_bug.cgi?id=2026485
- https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
- https://lkml.org/lkml/2021/10/18/885
- https://lkml.org/lkml/2021/9/13/2565