CVE-2025-68745

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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."}], "metrics": [{"cvssV3_1": {"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"}, "scenarios": [{"lang": "en", "value": "AV:N - A remote Fibre Channel/FCoE initiator can reach the vulnerable command lifecycle by sending FCP I/O and ABTS/TMR frames, without local host access.\nAC:L - The initiator can keep large PI/DIF I/O active while repeatedly issuing abort or reset requests, controlling both sides of the abort-versus-completion race.\nPR:N - Dynamic/demo ACL configurations admit fabric initiators without credentials, and WWPN-based session establishment requires no privilege on the target host.\nUI:N - Exploitation requires only attacker-generated fabric traffic and no victim action during the attack.\nS:U - The vulnerable driver and the affected kernel memory and storage resources belong to the same security authority.\nC:H - Concurrent unmapping can double-free shared DIF CRC-context and DSD objects, producing overlapping firmware-visible DMA contexts that can expose kernel or cross-command data.\nI:H - The DMA-pool double-free and concurrent DSD list deletion can corrupt kernel memory or redirect device DMA, potentially enabling arbitrary modification or code execution.\nA:H - The reported paths reach kernel BUG assertions, while reset-time command leaks can permanently exhaust resources; either can crash or render the target unavailable."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qla2xxx/qla_os.c", "drivers/scsi/qla2xxx/qla_target.c", "drivers/scsi/qla2xxx/qla_target.h"], "versions": [{"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "e87e9f92d7735895b7dd97f53dce6d95d08cf29c", "status": "affected", "versionType": "git"}, {"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "0d0a1a267c1ee7c41aeffdca84afcb113787a91a", "status": "affected", "versionType": "git"}, {"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "c82c0fbb97d0fd44324eb55ab758408c7c964b32", "status": "affected", "versionType": "git"}, {"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936", "status": "affected", "versionType": "git"}, {"version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "d46c69a087aa3d1513f7a78f871b80251ea0c1ae", "status": "affected", "versionType": "git"}, {"version": "eb67b7a23d357f578578e737cb6412ae2384f352", "status": "affected", "versionType": "git"}, {"version": "ec9639d92c1e10d4bc667e842753d85e21683d5c", "status": "affected", "versionType": "git"}, {"version": "e6e957f552d5b696879a31e5b0e2a9120e1ea86e", "status": "affected", "versionType": "git"}, {"version": "4.9.316", "lessThan": "4.10", "status": "affected", "versionType": "semver"}, {"version": "4.14.281", "lessThan": "4.15", "status": "affected", "versionType": "semver"}, {"version": "4.19.245", "lessThan": "4.20", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qla2xxx/qla_os.c", "drivers/scsi/qla2xxx/qla_target.c", "drivers/scsi/qla2xxx/qla_target.h"], "versions": [{"version": "5.2", "status": "affected"}, {"version": "0", "lessThan": "5.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.18.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.2", "versionEndExcluding": "6.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.316"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.281"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.245"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e87e9f92d7735895b7dd97f53dce6d95d08cf29c"}, {"url": "https://git.kernel.org/stable/c/0d0a1a267c1ee7c41aeffdca84afcb113787a91a"}, {"url": "https://git.kernel.org/stable/c/c82c0fbb97d0fd44324eb55ab758408c7c964b32"}, {"url": "https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936"}, {"url": "https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae"}], "title": "scsi: qla2xxx: Clear cmds after chip reset", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-68745", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:04:59.378599Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:09:43.983Z"}}]}}

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either can crash or render the target unavailable."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "e87e9f92d7735895b7dd97f53dce6d95d08cf29c", "versionType": "git"}, {"status": "affected", "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "0d0a1a267c1ee7c41aeffdca84afcb113787a91a", "versionType": "git"}, {"status": "affected", "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "c82c0fbb97d0fd44324eb55ab758408c7c964b32", "versionType": "git"}, {"status": "affected", "version": "aefed3e5548f28e5fecafda6604fcbc65484dbaa", "lessThan": "5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936", "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", "lessThan": "4.15", "versionType": "semver"}, {"status": "affected", "version": "4.19.245", "lessThan": "4.20", "versionType": "semver"}], "programFiles": ["drivers/scsi/qla2xxx/qla_os.c", "drivers/scsi/qla2xxx/qla_target.c", "drivers/scsi/qla2xxx/qla_target.h"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.2"}, {"status": "unaffected", "version": "0", "lessThan": "5.2", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.191", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.160", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.114", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.2", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/scsi/qla2xxx/qla_os.c", "drivers/scsi/qla2xxx/qla_target.c", "drivers/scsi/qla2xxx/qla_target.h"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/e87e9f92d7735895b7dd97f53dce6d95d08cf29c"}, {"url": "https://git.kernel.org/stable/c/0d0a1a267c1ee7c41aeffdca84afcb113787a91a"}, {"url": "https://git.kernel.org/stable/c/c82c0fbb97d0fd44324eb55ab758408c7c964b32"}, {"url": "https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936"}, {"url": "https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae"}], "x_generator": {"engine": "bippy-1.2.0"}, "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."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.191", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.160", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.114", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.2", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.19", "versionStartIncluding": "5.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.9.316"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.14.281"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionStartIncluding": "4.19.245"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:23:17.973Z"}}}, "cveMetadata": {"cveId": "CVE-2025-68745", "state": "PUBLISHED", "dateUpdated": "2026-10-30T12:23:17.973Z", "dateReserved": "2025-12-24T10:30:51.031Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-12-24T12:09:41.517Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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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 despu\u00e9s del reinicio del chip\n\nEl commit aefed3e5548f ('scsi: qla2xxx: target: Corregir el manejo de puertos fuera de l\u00ednea y el manejo de reinicio del host') caus\u00f3 dos problemas:\n\n1. Los comandos enviados al FW, despu\u00e9s del reinicio del chip, se quedaron atascados y nunca se liberaron, ya que el FW no va a responderles m\u00e1s.\n\n2. BUG_ON(cmd -> sg_mapped) en qlt_free_cmd(). El commit 26f9ce53817a ('scsi: qla2xxx: Corregir el desmapeo DMA omitido para comandos abortados') intent\u00f3 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\nAs\u00ed 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 l\u00ednea y el manejo de reinicio del host' en __qla2x00_abort_all_cmds."}], "id": "CVE-2025-68745", "lastModified": "2026-10-30T13:18:23.077", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-68745", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:04:59.378599Z", "version": "2.0.3"}}]}, "published": "2025-12-24T13:16:29.440", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "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", "url": "https://git.kernel.org/stable/c/e87e9f92d7735895b7dd97f53dce6d95d08cf29c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: scsi: qla2xxx: Clear cmds after chip reset", "id": "2425039", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2425039"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-68745", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-68745\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-68745\nhttps://lore.kernel.org/linux-cve-announce/2025122416-CVE-2025-68745-69b5@gregkh/T"], "threat_severity": "Moderate"}

{}