CVE-2026-89858
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-16 11:16:53.693000
Last modified
2026-10-19 09:18:30.243000
View original CVE JSON
{
"id": "CVE-2026-89858",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-16T11:16:53.693",
"lastModified": "2026-10-19T09:18:30.243",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates\nlist->count times over the qla_image_version array embedded in that\nbuffer, advancing the image pointer each iteration. count is taken\ndirectly from user input with no upper bound, while only (DMA_POOL_SIZE\n- sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries\nactually fit. A larger count walks the image pointer off the end of the\nstack buffer, reading adjacent kernel stack memory and sending it to the\ndevice via qla2x00_write_sfp().\n\nReject requests whose declared count does not fit in the buffer."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/scsi/qla2xxx/qla_bsg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
"lessThan": "af733bbfcf667af1871a2735fba2835b0da71efb",
"versionType": "git",
"status": "affected"
},
{
"version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
"lessThan": "a9706d5e754e77515a92bb532bd0d73644979a1f",
"versionType": "git",
"status": "affected"
},
{
"version": "697a4bc69159c3396035b0506ffa55c4b2d0b1f4",
"lessThan": "7e3154c97ec15460f715dbbe4097c255cce110b1",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "047f1f7ee6f85bde28abfdda9fa550191ddc0532",
"versionType": "git",
"status": "affected"
},
{
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"versionType": "git",
"status": "affected"
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{
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"versionType": "git",
"status": "affected"
},
{
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"lessThan": "f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514",
"versionType": "git",
"status": "affected"
},
{
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"versionType": "git",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/scsi/qla2xxx/qla_bsg.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "3.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.2",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.10.270",
"lessThanOrEqual": "5.10.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "5.15.221",
"lessThanOrEqual": "5.15.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.188",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.157",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.110",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.51",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.5",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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},
{
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},
{
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},
{
"url": "https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb",
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},
{
"url": "https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
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}
]
}