scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot

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Summary

CVECVE-2026-98386
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-14 14:17:49 UTC
Updated2026-10-21 13:21:28 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot For QLAFX00 the request ring is ioremapped device I/O memory (ha->iobase + req_que_off), not DMA-coherent RAM, which is why the rest of the FX00 path accesses it through memcpy_toio() and the wrt_reg_* helpers. __qla2x00_alloc_iocbs() however zeroed the producer slot with a plain memset(). On architectures such as ARM64 a regular memset() may emit unaligned or block-zeroing instructions (e.g. DC ZVA) that are invalid on Device memory, leading to a synchronous external abort. Use memset_io() to clear the slot for QLAFX00, matching the I/O accessors used elsewhere on this ring. Other adapters keep the plain memset() on their DMA-coherent rings. The zero-fill is retained for FX00 because its IOCB builders (e.g. qlafx00_fxdisc_iocb()) copy only part of the entry and rely on the unused tail being pre-zeroed.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8ae6d9c7eb1004bc134813287010d57a863ba13b 2df8c8630904794100189fa3d70598642e1877ce git Not specified
CNA Linux Linux affected 8ae6d9c7eb1004bc134813287010d57a863ba13b 53eb96c244d150dfb8cc4b5b0492ab53755f3701 git Not specified
CNA Linux Linux affected 8ae6d9c7eb1004bc134813287010d57a863ba13b 6ee6dfd922fafd508f6bde16de30dd2db796b7a7 git Not specified
CNA Linux Linux affected 8ae6d9c7eb1004bc134813287010d57a863ba13b e41d28d9a242c4005b7d01a7ee7769405a6a2c2e git Not specified
CNA Linux Linux affected 8ae6d9c7eb1004bc134813287010d57a863ba13b 626e44f3d8a924a97a3848a9fd45833947e081e9 git Not specified
CNA Linux Linux affected 3.10 Not specified
CNA Linux Linux unaffected 3.10 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/53eb96c244d150dfb8cc4b5b0492ab53755f3701 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e41d28d9a242c4005b7d01a7ee7769405a6a2c2e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/626e44f3d8a924a97a3848a9fd45833947e081e9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2df8c8630904794100189fa3d70598642e1877ce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6ee6dfd922fafd508f6bde16de30dd2db796b7a7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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