{"cve":"CVE-2026-98386","nvd":{"published":"2026-10-14T14:17:49.400","modified":"2026-10-21T13:21:28.450","status":"Received","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.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/2df8c8630904794100189fa3d70598642e1877ce","https://git.kernel.org/stable/c/53eb96c244d150dfb8cc4b5b0492ab53755f3701","https://git.kernel.org/stable/c/626e44f3d8a924a97a3848a9fd45833947e081e9","https://git.kernel.org/stable/c/6ee6dfd922fafd508f6bde16de30dd2db796b7a7","https://git.kernel.org/stable/c/e41d28d9a242c4005b7d01a7ee7769405a6a2c2e"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-98386","score":0.00206,"percentile":0.10452,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}