CVE-2023-1611 — A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree
A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows an attacker to crash the system and possibly cause a kernel information lea
Published
2023-04-03T00:00:00.000Z
Last modified
2025-02-13T14:57:52.797Z
01What is this vulnerability?
A use-after-free flaw was found in btrfs_search_slot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows an attacker to crash the system and possibly cause a kernel information lea
02Affected products
| Vendor | Product | Versions |
|---|
| n | a / Kernel | unknown |
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: 2023-04-03T00:00:00.000Z
- Last modified: 2025-02-13T14:57:52.797Z
09References
- bugzilla.redhat.com — https://bugzilla.redhat.com/show_bug.cgi?id=2181342
- lore.kernel.org — https://lore.kernel.org/linux-btrfs/35b9a70650ea947387cf352914a8774b4f7e8a6f.167…
- lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
- lists.fedoraproject.org — https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro…
- lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- github.com — https://github.com/torvalds/linux/commit/2f1a6be12ab6c8470d5776e68644726c94257c5…
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