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CVE-2024-35826: block: Fix page refcounts for unaligned buffers in __bio_release_pages()

Description

In the Linux kernel, the following vulnerability has been resolved:

block: Fix page refcounts for unaligned buffers in __bio_release_pages()

Fix an incorrect number of pages being released for buffers that do not
start at the beginning of a page.

Classification

CVE ID: CVE-2024-35826

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.83% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/242006996d15f5ca62e22f8c7de077d9c4a8f367
https://git.kernel.org/stable/c/7d3765550374f71248c55e6206ea1d6fd4537e65
https://git.kernel.org/stable/c/ecbd9ced84dd655a8f4cd49d2aad0e80dbf6bf35
https://git.kernel.org/stable/c/c9d3d2fbde9b8197bce88abcbe8ee8e713ffe7c2
https://git.kernel.org/stable/c/38b43539d64b2fa020b3b9a752a986769f87f7a6

Timeline