CVE-2026-98386 is a vulnerability in Linux Kernel
Published on October 14, 2026
scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot
In 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.
Products Associated with CVE-2026-98386
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Affected Versions
Linux:- Version 8ae6d9c7eb1004bc134813287010d57a863ba13b and below 53eb96c244d150dfb8cc4b5b0492ab53755f3701 is affected.
- Version 8ae6d9c7eb1004bc134813287010d57a863ba13b and below 6ee6dfd922fafd508f6bde16de30dd2db796b7a7 is affected.
- Version 8ae6d9c7eb1004bc134813287010d57a863ba13b and below e41d28d9a242c4005b7d01a7ee7769405a6a2c2e is affected.
- Version 8ae6d9c7eb1004bc134813287010d57a863ba13b and below 626e44f3d8a924a97a3848a9fd45833947e081e9 is affected.
- Version 3.10 is affected.
- Before 3.10 is unaffected.
- Version 6.12.112, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2.7, <= 7.2.* is unaffected.
- Version 7.3-rc1, <= * is unaffected.