CVE-2025-68745
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Clear cmds after chip reset Commit aefed3e5548f ("scsi: qla2xxx: target: Fix offline port handling and host reset handling") caused two problems: 1. Commands sent to FW, after chip reset got stuck and never freed as FW is not going to respond to them anymore. 2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a ("scsi: qla2xxx: Fix missed DMA unmap for aborted commands") attempted to fix this, but introduced another bug under different circumstances when two different CPUs were racing to call qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in dma_unmap_sg_attrs(). So revert "scsi: qla2xxx: Fix missed DMA unmap for aborted commands" and partially revert "scsi: qla2xxx: target: Fix offline port handling and host reset handling" at __qla2x00_abort_all_cmds.
Severity
CRITICAL
CVSS score
9.8
(v3.1)
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-12-24 13:16:29.440000
Last modified
2026-10-30 13:18:23.077000
View original CVE JSON
{
"id": "CVE-2025-68745",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-12-24T13:16:29.440",
"lastModified": "2026-10-30T13:18:23.077",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Clear cmds after chip reset\n\nCommit aefed3e5548f (\"scsi: qla2xxx: target: Fix offline port handling\nand host reset handling\") caused two problems:\n\n1. Commands sent to FW, after chip reset got stuck and never freed as FW\n is not going to respond to them anymore.\n\n2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd(). Commit 26f9ce53817a\n (\"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\")\n attempted to fix this, but introduced another bug under different\n circumstances when two different CPUs were racing to call\n qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in\n dma_unmap_sg_attrs().\n\nSo revert \"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\" and\npartially revert \"scsi: qla2xxx: target: Fix offline port handling and\nhost reset handling\" at __qla2x00_abort_all_cmds."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nscsi: qla2xxx: Borrar cmds después del reinicio del chip\n\nEl commit aefed3e5548f ('scsi: qla2xxx: target: Corregir el manejo de puertos fuera de línea y el manejo de reinicio del host') causó dos problemas:\n\n1. Los comandos enviados al FW, después del reinicio del chip, se quedaron atascados y nunca se liberaron, ya que el FW no va a responderles más.\n\n2. BUG_ON(cmd -> sg_mapped) en qlt_free_cmd(). El commit 26f9ce53817a ('scsi: qla2xxx: Corregir el desmapeo DMA omitido para comandos abortados') intentó solucionar esto, pero introdujo otro error bajo diferentes circunstancias cuando dos CPUs diferentes estaban compitiendo para llamar a qlt_unmap_sg() al mismo tiempo: BUG_ON(!valid_dma_direction(dir)) en dma_unmap_sg_attrs().\n\nAsí que se revierte 'scsi: qla2xxx: Corregir el desmapeo DMA omitido para comandos abortados' y se revierte parcialmente 'scsi: qla2xxx: target: Corregir el manejo de puertos fuera de línea y el manejo de reinicio del host' en __qla2x00_abort_all_cmds."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/scsi/qla2xxx/qla_os.c",
"drivers/scsi/qla2xxx/qla_target.c",
"drivers/scsi/qla2xxx/qla_target.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
"lessThan": "e87e9f92d7735895b7dd97f53dce6d95d08cf29c",
"versionType": "git",
"status": "affected"
},
{
"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
"lessThan": "0d0a1a267c1ee7c41aeffdca84afcb113787a91a",
"versionType": "git",
"status": "affected"
},
{
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"lessThan": "c82c0fbb97d0fd44324eb55ab758408c7c964b32",
"versionType": "git",
"status": "affected"
},
{
"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
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"versionType": "git",
"status": "affected"
},
{
"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa",
"lessThan": "d46c69a087aa3d1513f7a78f871b80251ea0c1ae",
"versionType": "git",
"status": "affected"
},
{
"version": "eb67b7a23d357f578578e737cb6412ae2384f352",
"versionType": "git",
"status": "affected"
},
{
"version": "ec9639d92c1e10d4bc667e842753d85e21683d5c",
"versionType": "git",
"status": "affected"
},
{
"version": "e6e957f552d5b696879a31e5b0e2a9120e1ea86e",
"versionType": "git",
"status": "affected"
},
{
"version": "4.9.316",
"lessThan": "4.10",
"versionType": "semver",
"status": "affected"
},
{
"version": "4.14.281",
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"versionType": "semver",
"status": "affected"
},
{
"version": "4.19.245",
"lessThan": "4.20",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/scsi/qla2xxx/qla_os.c",
"drivers/scsi/qla2xxx/qla_target.c",
"drivers/scsi/qla2xxx/qla_target.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "5.2",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.2",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.114",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.2",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.19",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-16T15:04:59.378599Z",
"id": "CVE-2025-68745",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"references": [
{
"url": "https://git.kernel.org/stable/c/0d0a1a267c1ee7c41aeffdca84afcb113787a91a",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c82c0fbb97d0fd44324eb55ab758408c7c964b32",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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{
"url": "https://git.kernel.org/stable/c/e87e9f92d7735895b7dd97f53dce6d95d08cf29c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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]
}