{"id":"CVE-2026-98386","published":"2026-10-14T14:17:49.400","lastModified":"2026-10-14T14:17:49.400","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot\n\nFor QLAFX00 the request ring is ioremapped device I/O memory\n(ha->iobase + req_que_off), not DMA-coherent RAM, which is why the rest\nof the FX00 path accesses it through memcpy_toio() and the wrt_reg_*\nhelpers. __qla2x00_alloc_iocbs() however zeroed the producer slot with a\nplain memset(). On architectures such as ARM64 a regular memset() may\nemit unaligned or block-zeroing instructions (e.g. DC ZVA) that are\ninvalid on Device memory, leading to a synchronous external abort.\n\nUse memset_io() to clear the slot for QLAFX00, matching the I/O\naccessors used elsewhere on this ring. Other adapters keep the plain\nmemset() on their DMA-coherent rings. The zero-fill is retained for FX00\nbecause its IOCB builders (e.g. qlafx00_fxdisc_iocb()) copy only part of\nthe entry and rely on the unused tail being pre-zeroed.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/53eb96c244d150dfb8cc4b5b0492ab53755f3701","tags":[]},{"url":"https://git.kernel.org/stable/c/626e44f3d8a924a97a3848a9fd45833947e081e9","tags":[]},{"url":"https://git.kernel.org/stable/c/6ee6dfd922fafd508f6bde16de30dd2db796b7a7","tags":[]},{"url":"https://git.kernel.org/stable/c/e41d28d9a242c4005b7d01a7ee7769405a6a2c2e","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}