CVE-2022-0185A 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.
Updated under an hour ago ()
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It affects linux_kernel and 8 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Aug 21, 2024; federal agencies had to remediate by Sep 11, 2024. Treat that date as your deadline.
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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.
- CVSS
- 8.4 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Added to CISA KEV Aug 21, 2024; federal remediation due Sep 11, 2024Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
- EPSS (exploitation in the next 30 days)
- 25.15% (percentile 98)
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | 8.4 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 5.1 before 5.4.173; from 5.5 before 5.10.93; from 5.11 before 5.15.16; from 5.16 before 5.16.2 | NVD |
netapp h410c_firmware netapp:h410c_firmware | all versions | NVD |
netapp h300s_firmware netapp:h300s_firmware | all versions | NVD |
netapp h500s_firmware netapp:h500s_firmware | all versions | NVD |
netapp h700s_firmware netapp:h700s_firmware | all versions | NVD |
netapp h300e_firmware netapp:h300e_firmware | all versions | NVD |
netapp h500e_firmware netapp:h500e_firmware | all versions | NVD |
netapp h700e_firmware netapp:h700e_firmware | all versions | NVD |
netapp h410s_firmware netapp:h410s_firmware | all versions | NVD |
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2x-refsource-misc, mailing-list, patch
- https://github.com/Crusaders-of-Rust/CVE-2022-0185x-refsource-misc, exploit, third-party-advisory
- https://www.openwall.com/lists/oss-security/2022/01/18/7x-refsource-misc, mailing-list, patch, third-party-advisory
- https://www.willsroot.io/2022/01/cve-2022-0185.htmlx-refsource-misc, exploit, third-party-advisory
- https://security.netapp.com/advisory/ntap-20220225-0003/x-refsource-confirm, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.