CVE-2022-3646 — A vulnerability, which was classified as problematic, has been found in Linux Ke
A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is r
Published
2022-10-21T18:15:10.103
Last modified
2026-10-14T14:17:27.170
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
01What is this vulnerability?
A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability.
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: 2022-10-21T18:15:10.103
- Last modified: 2026-10-14T14:17:27.170
09References
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d5…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- vuldb.com — https://vuldb.com/?id.211961
- git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d5…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- vuldb.com — https://vuldb.com/?id.211961
- cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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