CVE-2026-89844

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89844", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.770Z", "datePublished": "2026-09-16T10:31:18.439Z", "dateUpdated": "2026-10-19T08:53:37.236Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:37.236Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition\n\nqla24xx_report_id_acquisition() format-1 handling drops vport_slock after\ntaking the vport reference and then calls qla_update_host_map() without\nthe lock. That reaches qla_update_vp_map(), which mutates the ha->host_map\nbtree via btree_insert32()/btree_update32()/btree_remove32() and is\ndocumented to require vport_slock to be held by the caller. Running it\nunlocked can race concurrent host_map updates and corrupt the btree.\n\nThe format-2 path in the same function already wraps its host_map update\n(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.\n\nHold vport_slock across the format-1 qla_update_host_map() call to honor\nthe documented locking contract. The vref_count taken in the loop keeps\nthe vport valid, so this only adds the missing host_map serialization."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - qla24xx_report_id_acquisition() runs from qla2xxx response and ATIO interrupt paths when firmware reports NPIV N_Port ID acquisition or VP_STAT_ID_CHG after fabric FDISC. A peer or switch on the same Fibre Channel SAN can drive those events; FC is a non-routable fabric, so Adjacent is the highest defensible vector.\nAC:L - A fabric attacker can bounce the link or induce ID changes so multiple NPIV ports re-acquire IDs while the ATIO MSI-X path (atio_lock) and the response-queue path both call qla_update_host_map() on the shared ha->host_map btree. The attacker drives both sides of that race and can retry at fabric-event rate.\nPR:N - Report-ID IOCBs are firmware completions of unauthenticated Fibre Channel fabric login and ID assignment. The path checks no Linux credentials or capabilities on the victim host; FC-SP/EDIF is opt-in and not required.\nUI:N - Host-map updates run automatically in interrupt context when the HBA logs NPIV ports into the fabric or the fabric changes a VP ID. No user or administrator action such as mounting a device is required.\nS:U - Concurrent btree mutation corrupts qla2xxx host-map and kernel heap state inside the same host kernel security authority. This is not a VM escape, IOMMU bypass, or other cross-boundary impact.\nC:H - Unlocked btree_insert32/update32/remove32 on ha->host_map can free or reuse btree nodes while another CPU walks them, and the tree stores scsi_qla_host pointers consumed by qla_find_host_by_d_id(). That is UAF-class heap corruption enabling kernel memory disclosure.\nI:H - The same unlocked btree mutation can corrupt node pointers, double-free mempool objects via btree_shrink(), and install attacker-influenced scsi_qla_host pointers used to dispatch incoming FCP/ATIO commands, yielding write and control-flow primitives.\nA:H - lib/btree.c BUG_ON()s on inconsistent nodes, and a corrupted host_map causes oopses in interrupt context when ATIO or response processing dereferences a bad vha pointer, panicking the storage host."}]}], "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_mbx.c"], "versions": [{"version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "lessThan": "e8f1b0cb9782338c6341ceed816e9c1243743cdd", "status": "affected", "versionType": "git"}, {"version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "lessThan": "6ed66e2a67bbd22877008ff9aa64bd574a7fc011", "status": "affected", "versionType": "git"}, {"version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "lessThan": "776e4e8cbcf155302f430ce9793d1502e3c113a0", "status": "affected", "versionType": "git"}, {"version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "lessThan": "7d0b3f745efb24c0aac5e06b49b3420bc65d23b9", "status": "affected", "versionType": "git"}, {"version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "lessThan": "7944039ba9cb5c3a935d17c91004e3b8649ff58e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.51", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.5", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.3", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd"}, {"url": "https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011"}, {"url": "https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0"}, {"url": "https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9"}, {"url": "https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e"}], "title": "scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e8f1b0cb9782338c6341ceed816e9c1243743cdd", "status": "affected", "version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "versionType": "git"}, {"lessThan": "6ed66e2a67bbd22877008ff9aa64bd574a7fc011", "status": "affected", "version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "versionType": "git"}, {"lessThan": "776e4e8cbcf155302f430ce9793d1502e3c113a0", "status": "affected", "version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "versionType": "git"}, {"lessThan": "7d0b3f745efb24c0aac5e06b49b3420bc65d23b9", "status": "affected", "version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "versionType": "git"}, {"lessThan": "7944039ba9cb5c3a935d17c91004e3b8649ff58e", "status": "affected", "version": "430eef03a763e5e76a371ba6d02779ae4a64b6ea", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mbx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.3"}, {"lessThan": "6.3", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.51", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition\n\nqla24xx_report_id_acquisition() format-1 handling drops vport_slock after\ntaking the vport reference and then calls qla_update_host_map() without\nthe lock. That reaches qla_update_vp_map(), which mutates the ha->host_map\nbtree via btree_insert32()/btree_update32()/btree_remove32() and is\ndocumented to require vport_slock to be held by the caller. Running it\nunlocked can race concurrent host_map updates and corrupt the btree.\n\nThe format-2 path in the same function already wraps its host_map update\n(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.\n\nHold vport_slock across the format-1 qla_update_host_map() call to honor\nthe documented locking contract. The vref_count taken in the loop keeps\nthe vport valid, so this only adds the missing host_map serialization."}], "id": "CVE-2026-89844", "lastModified": "2026-10-19T09:18:28.360", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}]}, "published": "2026-09-16T11:16:51.567", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[430eef03a763e5e76a371ba6d02779ae4a64b6ea,e8f1b0cb9782338c6341ceed816e9c1243743cdd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[430eef03a763e5e76a371ba6d02779ae4a64b6ea,6ed66e2a67bbd22877008ff9aa64bd574a7fc011)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[430eef03a763e5e76a371ba6d02779ae4a64b6ea,776e4e8cbcf155302f430ce9793d1502e3c113a0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[430eef03a763e5e76a371ba6d02779ae4a64b6ea,7d0b3f745efb24c0aac5e06b49b3420bc65d23b9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[430eef03a763e5e76a371ba6d02779ae4a64b6ea,7944039ba9cb5c3a935d17c91004e3b8649ff58e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.3"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.3)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.51,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.5,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T09:00:08.370972+00:00", "updated": "2026-09-18T10:00:06.874250+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362"]}