CVE-2026-22980 — Use After Free in Linux
Severity
7.8HIGHNVD
EPSS
0.0%
top 95.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 23
Latest updateApr 13
Description
In the Linux kernel, the following vulnerability has been resolved:
nfsd: provide locking for v4_end_grace
Writing to v4_end_grace can race with server shutdown and result in
memory being accessed after it was freed - reclaim_str_hashtbl in
particularly.
We cannot hold nfsd_mutex across the nfsd4_end_grace() call as that is
held while client_tracking_op->init() is called and that can wait for
an upcall to nfsdcltrack which can write to v4_end_grace, resulting in a
deadlock.
nfsd4_end_grace()…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages6 packages
▶CVEListV5linux/linux7f5ef2e900d9462bf9cffaf6bb246ed87a20a6d6 — ca97360860eb02e3ae4ba42c19b439a0fcecbf06+7
Patches
🔴Vulnerability Details
9OSV▶
linux-aws-5.15, linux-gcp-5.15, linux-gke, linux-hwe-5.15, linux-intel-iotg-5.15, linux-lowlatency-hwe-5.15, linux-oracle-5.15 vulnerabilities↗2026-03-17