VulnerabilityPublished 14 Oct 2026Updated 21 Oct 2026

CVE-2026-98386: Linux kernel · scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in e41d28d9a242c4005b7d01a7ee7769405a6a2c2e : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in e41d28d9a242c4005b7d01a7ee7769405a6a2c2e, 626e44f3d8a924a97a3848a9fd45833947e081e9, 53eb96c244d150dfb8cc4b5b0492ab53755f3701 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 8ae6d9c7eb1004bc134813287010d57a863ba13b, < e41d28d9a242c4005b7d01a7ee7769405a6a2c2e	Fixed in e41d28d9a242c4005b7d01a7ee7769405a6a2c2e
LinuxLinux	Affected ≥ 8ae6d9c7eb1004bc134813287010d57a863ba13b, < 626e44f3d8a924a97a3848a9fd45833947e081e9	Fixed in 626e44f3d8a924a97a3848a9fd45833947e081e9
LinuxLinux	Affected ≥ 8ae6d9c7eb1004bc134813287010d57a863ba13b, < 53eb96c244d150dfb8cc4b5b0492ab53755f3701	Fixed in 53eb96c244d150dfb8cc4b5b0492ab53755f3701
LinuxLinux	Affected ≥ 8ae6d9c7eb1004bc134813287010d57a863ba13b, < 6ee6dfd922fafd508f6bde16de30dd2db796b7a7	Fixed in 6ee6dfd922fafd508f6bde16de30dd2db796b7a7
LinuxLinux	Affected ≥ 8ae6d9c7eb1004bc134813287010d57a863ba13b, < 2df8c8630904794100189fa3d70598642e1877ce	Fixed in 2df8c8630904794100189fa3d70598642e1877ce
LinuxLinux	Affected =3.10	Fixed in–

Description

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.

References

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