CVE-2026-89975

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89975", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.779Z", "datePublished": "2026-09-16T10:32:53.836Z", "dateUpdated": "2026-10-30T12:33:39.796Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:33:39.796Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fabrics: fix DHCHAP secret leak on parse failure\n\nnvmf_parse_options() duplicates dhchap_secret and dhchap_ctrl_secret\nwith match_strdup() before validating the DHHC-1: representation.\n\nIf validation fails, the parser returns -EINVAL before the temporary\nstring in p is assigned to opts->dhchap_secret or\nopts->dhchap_ctrl_secret. nvmf_create_ctrl() subsequently frees opts,\nbut nvmf_free_options() cannot release the unassigned temporary string.\nEach rejected option therefore leaks one allocation.\n\nThis is easy to miss because valid secrets transfer ownership to opts\nand are freed normally, while the malformed-secret path still returns\nthe expected -EINVAL to userspace.\n\nWith CONFIG_NVME_HOST_AUTH enabled, the leak is reachable before the\nrequired-option checks and transport lookup. No NVMe-oF target or\nworking transport connection is required; for example, repeatedly\nwriting\n\n\tdhchap_secret=BAD\n\nor\n\n\tdhchap_ctrl_secret=BAD\n\nto /dev/nvme-fabrics deterministically takes the leaking parse path.\n\nFree the temporary string before leaving both validation error paths.\nUse kfree_sensitive() because the copied option may contain secret\nmaterial even when its representation is rejected, matching the\nsensitive cleanup used for stored DHCHAP secrets."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/fabrics.c"], "versions": [{"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "35ec48228f6739339583e5a73ca315156372e30d", "status": "affected", "versionType": "git"}, {"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "3ce0e9b43f355dfa0bdc0e0dd889795752285791", "status": "affected", "versionType": "git"}, {"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "702c1ae0d31b44828ec3c87079def490c1ee1fb3", "status": "affected", "versionType": "git"}, {"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "15d7a35a489287109b5a7c157d53d9b8214f0318", "status": "affected", "versionType": "git"}, {"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549", "status": "affected", "versionType": "git"}, {"version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "lessThan": "afdee49a1b88ed9bb44e2b30e855297c169bcc53", "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/nvme/host/fabrics.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "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": "6.12.110", "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": "6.0", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.51"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.2.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/35ec48228f6739339583e5a73ca315156372e30d"}, {"url": "https://git.kernel.org/stable/c/3ce0e9b43f355dfa0bdc0e0dd889795752285791"}, {"url": "https://git.kernel.org/stable/c/702c1ae0d31b44828ec3c87079def490c1ee1fb3"}, {"url": "https://git.kernel.org/stable/c/15d7a35a489287109b5a7c157d53d9b8214f0318"}, {"url": "https://git.kernel.org/stable/c/d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549"}, {"url": "https://git.kernel.org/stable/c/afdee49a1b88ed9bb44e2b30e855297c169bcc53"}], "title": "nvme-fabrics: fix DHCHAP secret leak on parse failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/nvme/host/fabrics.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "35ec48228f6739339583e5a73ca315156372e30d", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}, {"lessThan": "3ce0e9b43f355dfa0bdc0e0dd889795752285791", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}, {"lessThan": "702c1ae0d31b44828ec3c87079def490c1ee1fb3", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}, {"lessThan": "15d7a35a489287109b5a7c157d53d9b8214f0318", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}, {"lessThan": "d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}, {"lessThan": "afdee49a1b88ed9bb44e2b30e855297c169bcc53", "status": "affected", "version": "f50fff73d620cd6e8f48bc58d4f1c944615a3fea", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/nvme/host/fabrics.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "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": "6.12.110", "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\nnvme-fabrics: fix DHCHAP secret leak on parse failure\n\nnvmf_parse_options() duplicates dhchap_secret and dhchap_ctrl_secret\nwith match_strdup() before validating the DHHC-1: representation.\n\nIf validation fails, the parser returns -EINVAL before the temporary\nstring in p is assigned to opts->dhchap_secret or\nopts->dhchap_ctrl_secret. nvmf_create_ctrl() subsequently frees opts,\nbut nvmf_free_options() cannot release the unassigned temporary string.\nEach rejected option therefore leaks one allocation.\n\nThis is easy to miss because valid secrets transfer ownership to opts\nand are freed normally, while the malformed-secret path still returns\nthe expected -EINVAL to userspace.\n\nWith CONFIG_NVME_HOST_AUTH enabled, the leak is reachable before the\nrequired-option checks and transport lookup. No NVMe-oF target or\nworking transport connection is required; for example, repeatedly\nwriting\n\n\tdhchap_secret=BAD\n\nor\n\n\tdhchap_ctrl_secret=BAD\n\nto /dev/nvme-fabrics deterministically takes the leaking parse path.\n\nFree the temporary string before leaving both validation error paths.\nUse kfree_sensitive() because the copied option may contain secret\nmaterial even when its representation is rejected, matching the\nsensitive cleanup used for stored DHCHAP secrets."}], "id": "CVE-2026-89975", "lastModified": "2026-10-30T13:20:37.560", "metrics": {}, "published": "2026-09-16T11:17:08.337", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/15d7a35a489287109b5a7c157d53d9b8214f0318"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/35ec48228f6739339583e5a73ca315156372e30d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3ce0e9b43f355dfa0bdc0e0dd889795752285791"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/702c1ae0d31b44828ec3c87079def490c1ee1fb3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/afdee49a1b88ed9bb44e2b30e855297c169bcc53"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f50fff73d620cd6e8f48bc58d4f1c944615a3fea,702c1ae0d31b44828ec3c87079def490c1ee1fb3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f50fff73d620cd6e8f48bc58d4f1c944615a3fea,15d7a35a489287109b5a7c157d53d9b8214f0318)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f50fff73d620cd6e8f48bc58d4f1c944615a3fea,d21da6cc91ba1c4f1ae5ba007f3cb89e1c0c7549)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[f50fff73d620cd6e8f48bc58d4f1c944615a3fea,afdee49a1b88ed9bb44e2b30e855297c169bcc53)"}}], "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": "6.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.0)"}}, {"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": "semver", "value": "[0,7.3-rc2]"}}], "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": "2026-09-18T04:15:02.516215+00:00", "updated": "2026-09-18T20:12:37.094625+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-200", "CWE-359"]}