CVE-2022-2978 — A flaw use after free in the Linux kernel NILFS file system was found in the way
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on
Published
2022-08-24T16:15:12.010
Last modified
2026-10-14T14:17:22.440
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
01What is this vulnerability?
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.
02Affected products
No structured affected-product list available — see references below for vendor advisories.
03Active exploitation status
Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.
04Recommended remediation
- Patch to a fixed version listed in the vendor advisory (see references below).
- Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
- Hunt historical logs for exploitation indicators — see Detection signatures below.
05Technical details
For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.
06Detection signatures
Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.
07Related CVEs
No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.
08Timeline
- Published: 2022-08-24T16:15:12.010
- Last modified: 2026-10-14T14:17:22.440
09References
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- lore.kernel.org — https://lore.kernel.org/linux-fsdevel/20220816040859.659129-1-dzm91%40hust.edu.c…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- lore.kernel.org — https://lore.kernel.org/linux-fsdevel/20220816040859.659129-1-dzm91%40hust.edu.c…
- cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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