CVE-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 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.
Read full descriptionShow less
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.
CVSS
NVD hasn't assigned a CVSS score to this CVE (common since the April 2026 policy change).
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 0.21 %
- Percentile among all scored CVEs
- 11
- Score date
- 10/21/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
References
Show 5 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
Raw JSON (NVD)
Show
{
"id": "CVE-2026-98386",
"cveTags": [],
"metrics": {},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "8ae6d9c7eb1004bc134813287010d57a863ba13b",
"lessThan": "2df8c8630904794100189fa3d70598642e1877ce",
"versionType": "git"
},
{
"status": "affected",
"version": "8ae6d9c7eb1004bc134813287010d57a863ba13b",
"lessThan": "53eb96c244d150dfb8cc4b5b0492ab53755f3701",
"versionType": "git"
},
{
"status": "affected",
"version": "8ae6d9c7eb1004bc134813287010d57a863ba13b",
"lessThan": "6ee6dfd922fafd508f6bde16de30dd2db796b7a7",
"versionType": "git"
},
{
"status": "affected",
"version": "8ae6d9c7eb1004bc134813287010d57a863ba13b",
"lessThan": "e41d28d9a242c4005b7d01a7ee7769405a6a2c2e",
"versionType": "git"
},
{
"status": "affected",
"version": "8ae6d9c7eb1004bc134813287010d57a863ba13b",
"lessThan": "626e44f3d8a924a97a3848a9fd45833947e081e9",
"versionType": "git"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_iocb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/scsi/qla2xxx/qla_iocb.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-14T14:17:49.400",
"references": [
{
"url": "https://git.kernel.org/stable/c/2df8c8630904794100189fa3d70598642e1877ce",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/53eb96c244d150dfb8cc4b5b0492ab53755f3701",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/626e44f3d8a924a97a3848a9fd45833947e081e9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/6ee6dfd922fafd508f6bde16de30dd2db796b7a7",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e41d28d9a242c4005b7d01a7ee7769405a6a2c2e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"lastModified": "2026-10-21T13:21:28.450",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}