CVE-2024-57976: btrfs: do proper folio cleanup when cow_file_range() failed
CSIRTS triage
- What
- Btrfs filesystem fails to properly clean up folios when cow_file_range() operation fails.
- Who is affected
- Systems using Btrfs filesystem, particularly those with heavy copy-on-write workloads.
- Urgency
- Medium severity (CVSS 5.5); may cause data corruption or denial of service on affected filesystems.
- Action
- Update kernel to patch that implements proper folio cleanup on cow_file_range() failure.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-57976
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2024-579760.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2024-57976 | coverage & exploitation status | NVD · CVE.org |
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