CVE-2026-89857

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89857", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.771Z", "datePublished": "2026-09-16T10:31:30.193Z", "dateUpdated": "2026-10-19T08:53:49.961Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:53:49.961Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold qpair lock when sending NVMe LS reject\n\nqla_nvme_ls_reject_iocb() allocates from and advances the request ring\nthrough __qla2x00_alloc_iocbs() (which assumes the hardware_lock is\nheld) and qla2x00_start_iocbs() (which advances the ring and rings the\nrequest-in doorbell), but takes no lock itself. Two of its callers\ninvoke it without the producer lock held:\n\n - qla_nvme_xmt_ls_rsp(), the NVMe-FC .xmt_ls_rsp transport callback, on\n its error path, and\n\n - qla2xxx_process_purls_pkt(), run from the purex work/DPC context.\n\nBoth use ha->base_qpair, whose qp_lock_ptr is hardware_lock, so they can\nrun concurrently with normal I/O submission on the base ring and corrupt\nthe ring producer state, leading to duplicated or dropped commands. The\nthird caller, qla2xxx_process_purls_iocb(), runs inside\nqla24xx_process_response_queue() with the qpair lock already held and is\nsafe; that is also why the lock cannot be taken inside the helper itself\n(it would recursively re-acquire hardware_lock on the response path).\n\nTake qp_lock_ptr around the two unlocked callers and document the helper\nas caller-locked. Both run in process context, so spin_lock_irqsave() is\nused and nothing in the locked region sleeps."}], "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 - Unsolicited NVMe-FC LS frames are posted as PT_LS4_UNSOL and reach qla2xxx_process_purls_pkt and qla_nvme_xmt_ls_rsp from a remote SAN peer. QLogic CNAs speak FCoE and fabrics are stretched via FCIP/inter-fabric routing, so a compromised target delivers those frames over the storage network with no local syscall.\nAC:L - A malicious NVMe-FC peer drives both base_qpair producers: LS that fail nvme_fc_rcv_ls_req or xmt_ls_rsp take unlocked qla_nvme_ls_reject_iocb, while concurrent accepted LS (or host NVMe LS/ELS via qla2x00_start_sp on the same qpair from qla2x00_get_sp) take the locked path. The attacker can flood and retry those frames.\nPR:N - Unsolicited NVMe-FC Link Service frames are handled from a logged-in fabric N_Port with no Linux user, capability, or authentication check on the LS-reject path. FC-SP/EDIF is opt-in; zoning is network access, not privileges on the victim host.\nUI:N - The HBA response-queue interrupt, DPC PROCESS_PUREX_IOCB path, and nvme_fc workqueue process unsolicited LS and emit the reject IOCB automatically; no victim mount, open, or other interactive action is required.\nS:U - Request-ring producer corruption and any resulting kernel or adapter failure stay inside the host kernel that owns the qla2xxx driver and do not cross a VM, IOMMU, or other separate security-authority boundary.\nC:H - Unlocked __qla2x00_alloc_iocbs/qla2x00_start_iocbs racing a locked producer can overwrite one ring slot and doorbell an extra stale slot. Firmware then DMA-executes leftover IOCBs whose addresses and handles may already have been recycled, a use-after-free/DMA-confusion read of kernel or I/O buffers.\nI:H - The same stale-slot replay and double-doorbell let firmware rewrite recycled DMA buffers or complete the wrong outstanding_cmds handle, including a second scsi_done/sp->done on a reused SRB, which is a kernel write and control-flow hijack primitive rather than only dropped I/O.\nA:H - Corrupted request-ring producer state duplicates or drops commands as the fix describes, desynchronizes firmware completions, and can oops on a bad handle or hang NVMe/SCSI I/O, taking down storage served by the adapter."}]}], "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_nvme.c"], "versions": [{"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "7eb618877503edbf17aa65e357a81bda1fc8f163", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "b3a362466db6b8ec47cc537ac641ac197fa69b5d", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "11834e5773e20fd3742d7eb900876e66b9e7d029", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "b02ff132017b28222187ebcf95ce7f4cb576cd36", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "f743488e4a203049f27ec5d8cd0caccc483af01e", "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_nvme.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "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": "6.6", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/7eb618877503edbf17aa65e357a81bda1fc8f163"}, {"url": "https://git.kernel.org/stable/c/b3a362466db6b8ec47cc537ac641ac197fa69b5d"}, {"url": "https://git.kernel.org/stable/c/11834e5773e20fd3742d7eb900876e66b9e7d029"}, {"url": "https://git.kernel.org/stable/c/b02ff132017b28222187ebcf95ce7f4cb576cd36"}, {"url": "https://git.kernel.org/stable/c/f743488e4a203049f27ec5d8cd0caccc483af01e"}], "title": "scsi: qla2xxx: Hold qpair lock when sending NVMe LS reject", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_nvme.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7eb618877503edbf17aa65e357a81bda1fc8f163", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "b3a362466db6b8ec47cc537ac641ac197fa69b5d", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "11834e5773e20fd3742d7eb900876e66b9e7d029", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "b02ff132017b28222187ebcf95ce7f4cb576cd36", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "f743488e4a203049f27ec5d8cd0caccc483af01e", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_nvme.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "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 qpair lock when sending NVMe LS reject\n\nqla_nvme_ls_reject_iocb() allocates from and advances the request ring\nthrough __qla2x00_alloc_iocbs() (which assumes the hardware_lock is\nheld) and qla2x00_start_iocbs() (which advances the ring and rings the\nrequest-in doorbell), but takes no lock itself. Two of its callers\ninvoke it without the producer lock held:\n\n - qla_nvme_xmt_ls_rsp(), the NVMe-FC .xmt_ls_rsp transport callback, on\n its error path, and\n\n - qla2xxx_process_purls_pkt(), run from the purex work/DPC context.\n\nBoth use ha->base_qpair, whose qp_lock_ptr is hardware_lock, so they can\nrun concurrently with normal I/O submission on the base ring and corrupt\nthe ring producer state, leading to duplicated or dropped commands. The\nthird caller, qla2xxx_process_purls_iocb(), runs inside\nqla24xx_process_response_queue() with the qpair lock already held and is\nsafe; that is also why the lock cannot be taken inside the helper itself\n(it would recursively re-acquire hardware_lock on the response path).\n\nTake qp_lock_ptr around the two unlocked callers and document the helper\nas caller-locked. Both run in process context, so spin_lock_irqsave() is\nused and nothing in the locked region sleeps."}], "id": "CVE-2026-89857", "lastModified": "2026-10-19T09:18:30.110", "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"}]}, "published": "2026-09-16T11:16:53.573", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/11834e5773e20fd3742d7eb900876e66b9e7d029"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7eb618877503edbf17aa65e357a81bda1fc8f163"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b02ff132017b28222187ebcf95ce7f4cb576cd36"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b3a362466db6b8ec47cc537ac641ac197fa69b5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f743488e4a203049f27ec5d8cd0caccc483af01e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[875386b98857822b77ac7f95bdf367b70af5b78c,7eb618877503edbf17aa65e357a81bda1fc8f163)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[875386b98857822b77ac7f95bdf367b70af5b78c,b3a362466db6b8ec47cc537ac641ac197fa69b5d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[875386b98857822b77ac7f95bdf367b70af5b78c,11834e5773e20fd3742d7eb900876e66b9e7d029)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[875386b98857822b77ac7f95bdf367b70af5b78c,b02ff132017b28222187ebcf95ce7f4cb576cd36)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[875386b98857822b77ac7f95bdf367b70af5b78c,f743488e4a203049f27ec5d8cd0caccc483af01e)"}}], "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": "6.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.6)"}}, {"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": "2026-09-16T21:45:06.020631+00:00", "updated": "2026-09-18T09:30:06.179116+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362"]}