UBUNTU-CVE-2026-23053
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfs_release_folio() Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfs_release_folio(). The latter cannot make progress due to state recovery being needed. It seems that the only safe thing to do here is to kick off a writeback of the folio, without waiting for completion, or else kicking off an asynchronous commit.
02 / AFFECTED SOFTWARE
Affected packages
11 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
19 explicit affected versions
10 explicit affected versions
6 explicit affected versions
24 explicit affected versions
10 explicit affected versions
34 explicit affected versions
26 explicit affected versions
7 explicit affected versions
38 explicit affected versions
13 explicit affected versions
41 explicit affected versions
35 explicit affected versions
18 explicit affected versions
43 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
49 explicit affected versions
1 explicit affected versions
21 explicit affected versions
9 explicit affected versions
16 explicit affected versions
10 explicit affected versions
20 explicit affected versions
45 explicit affected versions
8 explicit affected versions
7 explicit affected versions
12 explicit affected versions
11 explicit affected versions
7 explicit affected versions
12 explicit affected versions
14 explicit affected versions
10 explicit affected versions
1 explicit affected versions
7 explicit affected versions
13 explicit affected versions
12 explicit affected versions
8 explicit affected versions
12 explicit affected versions
38 explicit affected versions
16 explicit affected versions
17 explicit affected versions
25 explicit affected versions
31 explicit affected versions
10 explicit affected versions
37 explicit affected versions
10 explicit affected versions
9 explicit affected versions
13 explicit affected versions
37 explicit affected versions
3 explicit affected versions
10 explicit affected versions
11 explicit affected versions
26 explicit affected versions
8 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
12 explicit affected versions
38 explicit affected versions
38 explicit affected versions
8 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
17 explicit affected versions
16 explicit affected versions
11 explicit affected versions
5 explicit affected versions
12 explicit affected versions
9 explicit affected versions
7 explicit affected versions
12 explicit affected versions
8 explicit affected versions
16 explicit affected versions
5 explicit affected versions
10 explicit affected versions
26 explicit affected versions
35 explicit affected versions
33 explicit affected versions
44 explicit affected versions
11 explicit affected versions
10 explicit affected versions
13 explicit affected versions
43 explicit affected versions
16 explicit affected versions
47 explicit affected versions
3 explicit affected versions
7 explicit affected versions
15 explicit affected versions
51 explicit affected versions
16 explicit affected versions
18 explicit affected versions
39 explicit affected versions
12 explicit affected versions
7 explicit affected versions
27 explicit affected versions
40 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
10 explicit affected versions
7 explicit affected versions
43 explicit affected versions
13 explicit affected versions
13 explicit affected versions
7 explicit affected versions
8 explicit affected versions
10 explicit affected versions
12 explicit affected versions
9 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
45 explicit affected versions
37 explicit affected versions
48 explicit affected versions
14 explicit affected versions
38 explicit affected versions
9 explicit affected versions
17 explicit affected versions
11 explicit affected versions
36 explicit affected versions
17 explicit affected versions
14 explicit affected versions
8 explicit affected versions
7 explicit affected versions
4 explicit affected versions
8 explicit affected versions
1 explicit affected versions
13 explicit affected versions
43 explicit affected versions
14 explicit affected versions
10 explicit affected versions
8 explicit affected versions
42 explicit affected versions
14 explicit affected versions
4 explicit affected versions
78 explicit affected versions
14 explicit affected versions
11 explicit affected versions
1 explicit affected versions
16 explicit affected versions
37 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a deadlock involving nfs_release_folio() Wang Zhaolong reports a deadlock involving NFSv4.1 state recovery waiting on kthreadd, which is attempting to reclaim memory by calling nfs_release_folio(). The latter cannot make progress due to state recovery being needed. It seems that the only safe thing to do here is to kick off a writeback of the folio, without waiting for completion, or else kicking off an asynchronous commit.
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/cce0be6eb4971456b703aaeafd571650d314bcca
- https://git.kernel.org/stable/c/19b4d9ab5e77843eac0429c019470c02f8710b55
- https://git.kernel.org/stable/c/49d352bc263fe4a834233338bfaad31b3109addf
- https://git.kernel.org/stable/c/cce0be6eb4971456b703aaeafd571650d314bcca
- https://ubuntu.com/security/CVE-2026-23053
- https://ubuntu.com/security/notices/USN-8278-1
- https://ubuntu.com/security/notices/USN-8278-2
- https://ubuntu.com/security/notices/USN-8289-1
- https://ubuntu.com/security/notices/USN-8289-2
- https://ubuntu.com/security/notices/USN-8296-1
- https://ubuntu.com/security/notices/USN-8296-2
- https://ubuntu.com/security/notices/USN-8393-1
- https://ubuntu.com/security/notices/USN-8440-1
- https://ubuntu.com/security/notices/USN-8499-1
- https://ubuntu.com/security/notices/USN-8570-1
- https://ubuntu.com/security/notices/USN-8570-2
- https://ubuntu.com/security/notices/USN-8594-1
- https://ubuntu.com/security/notices/USN-8604-1
- https://ubuntu.com/security/notices/USN-8605-1
- https://www.cve.org/CVERecord?id=CVE-2026-23053