CVE-2026-97537

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-97537", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-24T16:01:01.153Z", "datePublished": "2026-09-25T10:21:35.608Z", "dateUpdated": "2026-10-30T12:37:17.869Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:37:17.869Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking\n\nqla25xx_free_req_que() and qla25xx_free_rsp_que() have two pre-existing\nbugs exposed on the error path of qla25xx_create_{req,rsp}_que():\n\n 1. When dma_alloc_coherent() fails during queue creation, the error\n path calls the free function with req->ring / rsp->ring still NULL\n (from kzalloc). The unconditional dma_free_coherent() with a NULL\n cpu_addr is undefined behavior and can panic.\n\n 2. The free functions clear req_qid_map / rsp_qid_map under vport_lock,\n but the create functions protect the same bitmaps with mq_lock.\n This provides no mutual exclusion. Additionally, the create error\n path clears the bit and releases mq_lock before calling the free\n function, creating a window where another thread can allocate the\n same que_id and have its ha->req_q_map entry clobbered by the\n subsequent lockless NULL assignment in the free function.\n\nFix by:\n\n - Guarding dma_free_coherent() with a NULL check on the ring pointer.\n\n - Using mq_lock (the lock held by all creators) in the free functions\n to atomically NULL the map entry and clear the bitmap bit.\n\n - Removing the now-redundant clear_bit blocks from the create error\n paths since the free functions handle it atomically."}], "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_mid.c"], "versions": [{"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "b65e3a82f77b7a63e386623d2ea70d2b5580295a", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "a9ff85886425355c72749be6090758aa19a89f16", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "81ee4df2a488f0909f7ff563e88a0e0099485a8b", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "2e6f60adf609c77e828f64e0cd371920bef91c12", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "56e25d716833604fd5bff388e472f290bfe793aa", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "f35cb67f2092b49d7949065dd56895ed47238f22", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "94fc0c5b45de2bf3a691619bcfd10b9a49fc647e", "status": "affected", "versionType": "git"}, {"version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "lessThan": "34a40e0dff940ac5eba494a69b553ea571e24873", "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_mid.c"], "versions": [{"version": "2.6.29", "status": "affected"}, {"version": "0", "lessThan": "2.6.29", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.273", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.224", "lessThanOrEqual": "5.15.*", "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": "6.12.112", "lessThanOrEqual": "6.12.*", "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", "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": "2.6.29", "versionEndExcluding": "5.10.273"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "5.15.224"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.29", "versionEndExcluding": 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"https://git.kernel.org/stable/c/56e25d716833604fd5bff388e472f290bfe793aa"}, {"url": "https://git.kernel.org/stable/c/f35cb67f2092b49d7949065dd56895ed47238f22"}, {"url": "https://git.kernel.org/stable/c/94fc0c5b45de2bf3a691619bcfd10b9a49fc647e"}, {"url": "https://git.kernel.org/stable/c/34a40e0dff940ac5eba494a69b553ea571e24873"}], "title": "scsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mid.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b65e3a82f77b7a63e386623d2ea70d2b5580295a", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "a9ff85886425355c72749be6090758aa19a89f16", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "81ee4df2a488f0909f7ff563e88a0e0099485a8b", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "2e6f60adf609c77e828f64e0cd371920bef91c12", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "56e25d716833604fd5bff388e472f290bfe793aa", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "f35cb67f2092b49d7949065dd56895ed47238f22", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "94fc0c5b45de2bf3a691619bcfd10b9a49fc647e", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}, {"lessThan": "34a40e0dff940ac5eba494a69b553ea571e24873", "status": "affected", "version": "73208dfd7ab19f379d73e8a0fbf30f92c203e5e8", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/scsi/qla2xxx/qla_mid.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.29"}, {"lessThan": "2.6.29", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.273", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.224", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "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", "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: Fix queue teardown NULL dma_free and bitmap locking\n\nqla25xx_free_req_que() and qla25xx_free_rsp_que() have two pre-existing\nbugs exposed on the error path of qla25xx_create_{req,rsp}_que():\n\n 1. When dma_alloc_coherent() fails during queue creation, the error\n path calls the free function with req->ring / rsp->ring still NULL\n (from kzalloc). The unconditional dma_free_coherent() with a NULL\n cpu_addr is undefined behavior and can panic.\n\n 2. The free functions clear req_qid_map / rsp_qid_map under vport_lock,\n but the create functions protect the same bitmaps with mq_lock.\n This provides no mutual exclusion. Additionally, the create error\n path clears the bit and releases mq_lock before calling the free\n function, creating a window where another thread can allocate the\n same que_id and have its ha->req_q_map entry clobbered by the\n subsequent lockless NULL assignment in the free function.\n\nFix by:\n\n - Guarding dma_free_coherent() with a NULL check on the ring pointer.\n\n - Using mq_lock (the lock held by all creators) in the free functions\n to atomically NULL the map entry and clear the bitmap bit.\n\n - Removing the now-redundant clear_bit blocks from the create error\n paths since the free functions handle it atomically."}], "id": "CVE-2026-97537", "lastModified": "2026-10-30T13:21:07.253", "metrics": {}, "published": "2026-09-25T11:17:03.973", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2e6f60adf609c77e828f64e0cd371920bef91c12"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/34a40e0dff940ac5eba494a69b553ea571e24873"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/56e25d716833604fd5bff388e472f290bfe793aa"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/81ee4df2a488f0909f7ff563e88a0e0099485a8b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/94fc0c5b45de2bf3a691619bcfd10b9a49fc647e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a9ff85886425355c72749be6090758aa19a89f16"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b65e3a82f77b7a63e386623d2ea70d2b5580295a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f35cb67f2092b49d7949065dd56895ed47238f22"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: scsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking", "id": "2541238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541238"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: qla2xxx: Fix queue teardown NULL dma_free and bitmap locking\nqla25xx_free_req_que() and qla25xx_free_rsp_que() have two pre-existing\nbugs exposed on the error path of qla25xx_create_{req,rsp}_que():\n1. When dma_alloc_coherent() fails during queue creation, the error\npath calls the free function with req->ring / rsp->ring still NULL\n(from kzalloc). The unconditional dma_free_coherent() with a NULL\ncpu_addr is undefined behavior and can panic.\n2. The free functions clear req_qid_map / rsp_qid_map under vport_lock,\nbut the create functions protect the same bitmaps with mq_lock.\nThis provides no mutual exclusion. Additionally, the create error\npath clears the bit and releases mq_lock before calling the free\nfunction, creating a window where another thread can allocate the\nsame que_id and have its ha->req_q_map entry clobbered by the\nsubsequent lockless NULL assignment in the free function.\nFix by:\n- Guarding dma_free_coherent() with a NULL check on the ring pointer.\n- Using mq_lock (the lock held by all creators) in the free functions\nto atomically NULL the map entry and clear the bitmap bit.\n- Removing the now-redundant clear_bit blocks from the create error\npaths since the free functions handle it atomically.", "A flaw was found in the Linux kernel's qla2xxx driver. A local user could cause a Denial of Service (DoS) through a system crash during device queue teardown. This issue occurs when error handling paths fail to properly synchronize queue state and attempt to deallocate memory pointers that were never initialized."], "name": "CVE-2026-97537", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-97537\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-97537\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97537.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,f35cb67f2092b49d7949065dd56895ed47238f22)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,94fc0c5b45de2bf3a691619bcfd10b9a49fc647e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,34a40e0dff940ac5eba494a69b553ea571e24873)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,6.18.53)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,7.2.7)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.53,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.7,7.2.*]"}}, {"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": "2026-09-25T15:15:14.335045+00:00", "updated": "2026-10-01T12:00:06.842966+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}