CVE-2022-0185

CVE-2022-0185

Vendor N/A

Product kernel

Weakness CWE-190

KEV Status Known Exploited

Published February 11, 2022

Last update October 21, 2025

View on NVD All CVEs

CVSS base score

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What the vulnerability does

01Description

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

CISA mandated remediation

02CISA Required Action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Key dates

03Disclosure timeline

February 11, 2022 CVE published

October 21, 2025 Record updated

External resources

04References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2022-0185 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/190.html CISA KEV Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux… CISA KEV Reference https://nvd.nist.gov/vuln/detail/CVE-2022-0185

Related vulnerabilities

01Description

02CISA Required Action

03Disclosure timeline

04References

05Related CVE