VYPR
Unrated severityNVD Advisory· Published Aug 17, 2024· Updated Nov 3, 2025

s390/uv: Don't call folio_wait_writeback() without a folio reference

CVE-2024-43832

Description

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.

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Affected products

55

Patches

Vulnerability mechanics

References

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