CVE-2024-43832
HIGH severity · CVSS 7.8
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/uv: Don't call folio_wait_writeback() without a folio reference folio_wait_writeback() requires that no spinlocks are held and that a folio reference is held, as documented. After we dropped the PTL, the folio could get freed concurrently. So grab a temporary reference.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7Patch
- https://git.kernel.org/stable/c/3f29f6537f54d74e64bac0a390fb2e26da25800dPatch
- https://git.kernel.org/stable/c/8736604ef53359a718c246087cd21dcec232d2fbPatch
- https://git.kernel.org/stable/c/b21aba72aadd94bdac275deab021fc84d6c72b16Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html