CVE-2024-43832

low-risk
Published 2024-08-17

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (5)

Patch https://git.kernel.org/stable/c/1a1eb2f3fc453dcd52726d13e863938561489cb7
Patch https://git.kernel.org/stable/c/3f29f6537f54d74e64bac0a390fb2e26da25800d
Patch https://git.kernel.org/stable/c/8736604ef53359a718c246087cd21dcec232d2fb
Patch https://git.kernel.org/stable/c/b21aba72aadd94bdac275deab021fc84d6c72b16
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal