{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97528", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T16:01:01.153Z", "datePublished": "2026-09-25T10:21:30.130Z", "dateUpdated": "2026-09-25T14:41:08.621Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T14:41:08.621Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error\n\nqla_nvme_xmt_ls_rsp() obtains uctx, which was linked into\nfcport->unsol_ctx_head by qla2xxx_process_purls_iocb() and is still linked\nwhen the NVMe transport calls back to transmit the LS response. On the\nerror (out:) path the function frees uctx with kfree() but never removes\nit from the list. This leaves a freed node in fcport->unsol_ctx_head: the\nnext list_add_tail() for that fcport writes through the freed node, and a\nsubsequent list_del() can corrupt the list or panic.\n\nUnlink uctx with list_del() before kfree() on the error path, matching the\nother free sites in qla_nvme_release_lsrsp_cmd_kref() and\nqla2xxx_process_purls_pkt(). qla2x00_rel_sp() in the failure path only\nreturns the SRB to its pool and does not invoke sp->put_fn, so the out:\npath is the sole free and uctx is always still linked there."}], "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 - Unsolicited FC-NVMe LS frames are posted as PT_LS4_UNSOL; qla24xx_msix_rsp_q() (or qla2xxx_msix_rsp_q \u2192 qla_do_work) runs qla24xx_process_response_queue() \u2192 qla2xxx_process_purls_iocb(), then DPC qla2xxx_process_purls_pkt() \u2192 nvme_fc_rcv_ls_req() and nvme_fc_xmt_ls_rsp() call qla_nvme_xmt_ls_rsp(). FC/FCoE is a non-routable SAN fabric, so Adjacent is the highest defensible vector.\nAC:L - qla_nvme_xmt_ls_rsp() kfree()s uctx on out: when qla2x00_get_sp(GFP_ATOMIC) fails, qla2x00_start_sp() fails after five -EAGAIN retries, or fcport->deleted is set. A peer floods CREATE_ASSOCIATION LS onto base_qpair or sends LS then LOGO so deleted is set before nvme_fc_handle_ls_rqst_work() calls xmt_ls_rsp; both sides are attacker-driven.\nPR:N - qla2xxx_process_purls_iocb() looks up the sender with qla2x00_find_fcport_by_nportid(incl_deleted=0) and handles PT_LS4_UNSOL in the MSI-X/DPC path with no Linux credential or capability check. FC-SP/EDIF is opt-in; being a logged-in NVMe N_Port is fabric membership, not a privilege on the victim host.\nUI:N - qla24xx_queue_purex_item() sets PROCESS_PUREX_IOCB; qla2xxx_process_purls_pkt() and the nvme_fc rport lsrcv_work then call qla_nvme_xmt_ls_rsp() with no victim mount, open, or administrator action.\nS:U - kfree() of uctx while it remains on fcport->unsol_ctx_head corrupts that per-fcport list and the host kernel heap inside the qla2xxx driver. Impact stays in the same kernel security authority; it is not a VM escape or IOMMU/DMA bypass.\nC:H - After qla_nvme_xmt_ls_rsp() kfree()s uctx, the next qla2xxx_process_purls_iocb() list_add_tail() and a later list_del() in qla_nvme_release_lsrsp_cmd_kref() or qla2xxx_process_purls_pkt() operate on the freed qla_nvme_unsol_ctx. That use-after-free of a kmalloc object enables disclosure of reused kernel heap.\nI:H - list_add_tail(&uctx->elem, &fcport->unsol_ctx_head) writes next/prev through the already-freed node, and list_del() of a neighbor stores those pointers into adjacent heap objects. Combined with attacker-driven uctx allocations of known size, that is a kernel write primitive usable for control-flow hijack.\nA:H - list_add_tail()/list_del() on the dangling uctx->elem oopses on LIST_POISON or panics on a corrupted next/prev, and the remote peer can repeat PT_LS4_UNSOL to hit the out: path again, taking down the host and its FC-NVMe storage path."}]}], "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": "a95fc5f1c12bba1dbff72bd2611e7fad0758831b", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "c55d649a6cc246c3ccd5d118faea230c46b60f35", "status": "affected", "versionType": "git"}, {"version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd", "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": "6.18.53", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.7", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3-rc1", "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": "6.18.53"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a95fc5f1c12bba1dbff72bd2611e7fad0758831b"}, {"url": "https://git.kernel.org/stable/c/c55d649a6cc246c3ccd5d118faea230c46b60f35"}, {"url": "https://git.kernel.org/stable/c/e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd"}], "title": "scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error", "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": "a95fc5f1c12bba1dbff72bd2611e7fad0758831b", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "c55d649a6cc246c3ccd5d118faea230c46b60f35", "status": "affected", "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "versionType": "git"}, {"lessThan": "e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd", "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": "6.18.*", "status": "unaffected", "version": "6.18.53", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.7", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "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: Unlink NVMe unsol ctx before freeing on LS reject error\n\nqla_nvme_xmt_ls_rsp() obtains uctx, which was linked into\nfcport->unsol_ctx_head by qla2xxx_process_purls_iocb() and is still linked\nwhen the NVMe transport calls back to transmit the LS response. On the\nerror (out:) path the function frees uctx with kfree() but never removes\nit from the list. This leaves a freed node in fcport->unsol_ctx_head: the\nnext list_add_tail() for that fcport writes through the freed node, and a\nsubsequent list_del() can corrupt the list or panic.\n\nUnlink uctx with list_del() before kfree() on the error path, matching the\nother free sites in qla_nvme_release_lsrsp_cmd_kref() and\nqla2xxx_process_purls_pkt(). qla2x00_rel_sp() in the failure path only\nreturns the SRB to its pool and does not invoke sp->put_fn, so the out:\npath is the sole free and uctx is always still linked there."}], "id": "CVE-2026-97528", "lastModified": "2026-09-25T11:17:02.980", "metrics": {}, "published": "2026-09-25T11:17:02.980", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a95fc5f1c12bba1dbff72bd2611e7fad0758831b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c55d649a6cc246c3ccd5d118faea230c46b60f35"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}