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Vulnerabilities

Vulnerability · CVE-2026-98386

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

Published Oct 14, 2026 · catalog updated Oct 15, 2026 · scsi: qla2xxx: Use memset_io()

Check if you run it

No confirmed exploitation is on record for CVE-2026-98386. EPSS is 0.21%. Act only if a listed version of scsi: qla2xxx: Use memset_io() is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (scsi: qla2xxx: Use memset_io()).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.21%
Remediation
Advisory link
Affected products
Linux Kernel

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Linux Kernel3.10.0 → 6.12.112

How to fix CVE-2026-98386

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-98386. EPSS is 0.21%. Act only if a listed version of scsi: qla2xxx: Use memset_io() is installed.

Which versions are affected?

Compare what you have installed with Kernel 3.10.0 → 6.12.112. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.21%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 14, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    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 slo

  2. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    Kernel fixed in 6.12.112

  3. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    Kernel fixed in 6.12.112

  4. Oct 15, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    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 slo

Sources

  • CVE.orgVulnerability recordCVE-2026-98386

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-98386

    30-day exploitation probability 0.2%

    first.org
  • OpenSSF OSV / OSV ScannerPackage advisoryCVE-2026-98386

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

    osv.dev
  • Tenable CVE DatabaseVulnerability recordCVE-2026-98386

    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 slo

    tenable.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.