CVE-2022-50072
HighIn the Linux kernel, the following vulnerability has been resolved: NFSv4/pnfs: Fix a use-after-free bug in open If someone cancels the open RPC call, then we must not try to free either the open slot or the layoutget operation arguments, since they are likely still in use by the hung RPC call.
CVSS 3.1 score
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type
CWE-416CVE-2022-50072 is a Use After Free vulnerability
What is Use After Free?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE
Affected versions
Linux kernel versions
4.19.247,
5.4.198,
5.10.122,
5.15.47,
5.17.15,
5.18.4,
5.19
and later are affected. Fixed in
4.19.256,
5.4.211,
5.10.138,
5.15.63,
5.19.4,
6.0
and their respective stable series.
References
The following references provide additional information about CVE-2022-50072 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/0fffb46ff3d5ed4668aca96441ec7a25b793bd6f
-
PatchKernel patch commithttps://git.kernel.org/stable/c/2135e5d56278ffdb1c2e6d325dc6b87f669b9dac
-
PatchKernel patch commithttps://git.kernel.org/stable/c/76ffd2042438769298f34b76102b40dea89de616
Frequently asked questions
-
What is CVE-2022-50072?
CVE-2022-50072 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 4.19.247 onward and has been patched in 4.19.256, 5.4.211, 5.10.138 and others. CVE-2022-50072 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2022-50072?
CVE-2022-50072 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2022-50072?
Yes — CVE-2022-50072 has been patched. Fixed versions include 4.19.256, 5.4.211, 5.10.138 and others. If you are running Linux kernel 4.19.247 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2022-50072 actively exploited?
No — CVE-2022-50072 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
-
What is Use After Free (CWE-416)?
The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. View CWE-416 on MITRE CWE →