UBUNTU-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. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.
02 / AFFECTED SOFTWARE
Affected packages
6 explicit affected versions
9 explicit affected versions
8 explicit affected versions
6 explicit affected versions
50 explicit affected versions
83 explicit affected versions
35 explicit affected versions
63 explicit affected versions
36 explicit affected versions
2 explicit affected versions
95 explicit affected versions
4 explicit affected versions
23 explicit affected versions
83 explicit affected versions
1 explicit affected versions
1 explicit affected versions
21 explicit affected versions
2 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
8 explicit affected versions
1 explicit affected versions
7 explicit affected versions
9 explicit affected versions
38 explicit affected versions
46 explicit affected versions
8 explicit affected versions
38 explicit affected versions
38 explicit affected versions
10 explicit affected versions
149 explicit affected versions
22 explicit affected versions
82 explicit affected versions
61 explicit affected versions
1 explicit affected versions
21 explicit affected versions
1 explicit affected versions
29 explicit affected versions
13 explicit affected versions
77 explicit affected versions
1 explicit affected versions
40 explicit affected versions
33 explicit affected versions
10 explicit affected versions
62 explicit affected versions
11 explicit affected versions
12 explicit affected versions
85 explicit affected versions
7 explicit affected versions
38 explicit affected versions
2 explicit affected versions
81 explicit affected versions
34 explicit affected versions
1 explicit affected versions
6 explicit affected versions
17 explicit affected versions
39 explicit affected versions
1 explicit affected versions
1 explicit affected versions
43 explicit affected versions
5 explicit affected versions
28 explicit affected versions
1 explicit affected versions
28 explicit affected versions
9 explicit affected versions
1 explicit affected versions
39 explicit affected versions
10 explicit affected versions
26 explicit affected versions
44 explicit affected versions
16 explicit affected versions
7 explicit affected versions
22 explicit affected versions
38 explicit affected versions
9 explicit affected versions
126 explicit affected versions
28 explicit affected versions
61 explicit affected versions
9 explicit affected versions
93 explicit affected versions
70 explicit affected versions
4 explicit affected versions
26 explicit affected versions
61 explicit affected versions
28 explicit affected versions
43 explicit affected versions
1 explicit affected versions
105 explicit affected versions
110 explicit affected versions
30 explicit affected versions
4 explicit affected versions
17 explicit affected versions
1 explicit affected versions
17 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/19ea40dddf1833db868533958ca066f368862211
- https://ubuntu.com/security/CVE-2021-4149
- https://ubuntu.com/security/notices/USN-5466-1
- https://ubuntu.com/security/notices/USN-6001-1
- https://ubuntu.com/security/notices/USN-6013-1
- https://ubuntu.com/security/notices/USN-6014-1
- https://www.cve.org/CVERecord?id=CVE-2021-4149