CVE-2021-4149
Medium
Description
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMar 23, 2022
First seenMar 23, 2022
Weakness typeCWE-667CWE-667
How to fix
Update
- linux linux_kernel5.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.15, 5.15 | 5.15 |
| debian debian_linux | 9.0 | — |
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