Bug 2360284 (CVE-2025-22122)

Summary: CVE-2025-22122 kernel: block: fix adding folio to bio
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-04-16 15:06:18 UTC
In the Linux kernel, the following vulnerability has been resolved:

block: fix adding folio to bio

>4GB folio is possible on some ARCHs, such as aarch64, 16GB hugepage
is supported, then 'offset' of folio can't be held in 'unsigned int',
cause warning in bio_add_folio_nofail() and IO failure.

Fix it by adjusting 'page' & trimming 'offset' so that `->bi_offset` won't
be overflow, and folio can be added to bio successfully.

Comment 1 Avinash Hanwate 2025-04-17 06:55:03 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041628-CVE-2025-22122-c2d1@gregkh/T