CVE-2026-98217

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98217", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.326Z", "datePublished": "2026-10-06T08:44:53.152Z", "dateUpdated": "2026-10-19T09:15:47.995Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:15:47.995Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx4: Fix use-after-free on pkey sysfs registration failure\n\nregister_pkey_tree() ignores errors from register_one_pkey_tree() and\ncontinues registering the remaining slaves. The per-slave error path has\nalready released the pkey parent kobjects, but their pointers remain\nstored in the device. A later device cleanup therefore passes the stale\npointers to kobject_put(), causing a use-after-free.\n\nClear the parent pointers after releasing a failed slave tree and skip\nunregistered trees during device cleanup. This preserves the existing\nbest-effort registration behavior while preventing a second cleanup of\nthe failed tree."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/mlx4/sysfs.c"], "versions": [{"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "791471421d848ce13e84f4b21c9e19973d471c4e", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "734f066933484f6c7cedea0312763249beed5845", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "a07bee32127d7c4cd3b1bb9a088e21d0c93634c9", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "cf20d7476754c00eec04ae23d3e929de33ce0345", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "0c3482e965b18bc242e54e899d1c4d391ca8e5e3", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "ffb80872617b5f9b3dd1536ec2909029fa66f228", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "ced1186fea7c77e16681c7ef4802897885989c3b", "status": "affected", "versionType": "git"}, {"version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "lessThan": "1af874e9f4ce22ccf8b10ab5462f32c70d3be21a", "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/infiniband/hw/mlx4/sysfs.c"], "versions": [{"version": "3.7", "status": "affected"}, {"version": "0", "lessThan": "3.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.271", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.222", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.189", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "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": "3.7", "versionEndExcluding": "5.10.271"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "5.15.222"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.1.189"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/791471421d848ce13e84f4b21c9e19973d471c4e"}, {"url": "https://git.kernel.org/stable/c/734f066933484f6c7cedea0312763249beed5845"}, {"url": "https://git.kernel.org/stable/c/a07bee32127d7c4cd3b1bb9a088e21d0c93634c9"}, {"url": "https://git.kernel.org/stable/c/cf20d7476754c00eec04ae23d3e929de33ce0345"}, {"url": "https://git.kernel.org/stable/c/0c3482e965b18bc242e54e899d1c4d391ca8e5e3"}, {"url": "https://git.kernel.org/stable/c/ffb80872617b5f9b3dd1536ec2909029fa66f228"}, {"url": "https://git.kernel.org/stable/c/ced1186fea7c77e16681c7ef4802897885989c3b"}, {"url": "https://git.kernel.org/stable/c/1af874e9f4ce22ccf8b10ab5462f32c70d3be21a"}], "title": "IB/mlx4: Fix use-after-free on pkey sysfs registration failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/mlx4/sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "791471421d848ce13e84f4b21c9e19973d471c4e", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "734f066933484f6c7cedea0312763249beed5845", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "a07bee32127d7c4cd3b1bb9a088e21d0c93634c9", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "cf20d7476754c00eec04ae23d3e929de33ce0345", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "0c3482e965b18bc242e54e899d1c4d391ca8e5e3", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "ffb80872617b5f9b3dd1536ec2909029fa66f228", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "ced1186fea7c77e16681c7ef4802897885989c3b", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}, {"lessThan": "1af874e9f4ce22ccf8b10ab5462f32c70d3be21a", "status": "affected", "version": "c1e7e466120b80ce49e91af0c9da1ce6dee4844a", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/mlx4/sysfs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.7"}, {"lessThan": "3.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.271", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.222", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.189", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "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\nIB/mlx4: Fix use-after-free on pkey sysfs registration failure\n\nregister_pkey_tree() ignores errors from register_one_pkey_tree() and\ncontinues registering the remaining slaves. The per-slave error path has\nalready released the pkey parent kobjects, but their pointers remain\nstored in the device. A later device cleanup therefore passes the stale\npointers to kobject_put(), causing a use-after-free.\n\nClear the parent pointers after releasing a failed slave tree and skip\nunregistered trees during device cleanup. This preserves the existing\nbest-effort registration behavior while preventing a second cleanup of\nthe failed tree."}], "id": "CVE-2026-98217", "lastModified": "2026-10-19T10:18:22.473", "metrics": {}, "published": "2026-10-06T09:18:08.423", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0c3482e965b18bc242e54e899d1c4d391ca8e5e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1af874e9f4ce22ccf8b10ab5462f32c70d3be21a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/734f066933484f6c7cedea0312763249beed5845"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/791471421d848ce13e84f4b21c9e19973d471c4e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a07bee32127d7c4cd3b1bb9a088e21d0c93634c9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ced1186fea7c77e16681c7ef4802897885989c3b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cf20d7476754c00eec04ae23d3e929de33ce0345"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ffb80872617b5f9b3dd1536ec2909029fa66f228"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: IB/mlx4: Fix use-after-free on pkey sysfs registration failure", "id": "2546350", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2546350"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nIB/mlx4: Fix use-after-free on pkey sysfs registration failure\nregister_pkey_tree() ignores errors from register_one_pkey_tree() and\ncontinues registering the remaining slaves. The per-slave error path has\nalready released the pkey parent kobjects, but their pointers remain\nstored in the device. A later device cleanup therefore passes the stale\npointers to kobject_put(), causing a use-after-free.\nClear the parent pointers after releasing a failed slave tree and skip\nunregistered trees during device cleanup. This preserves the existing\nbest-effort registration behavior while preventing a second cleanup of\nthe failed tree.", "A flaw was found in the Linux kernel's mlx4 InfiniBand driver that can result in a Denial of Service (DoS). When device registration encounters an error during setup, the driver frees memory objects associated with partition key interfaces but retains their references. A subsequent device cleanup operation attempts to release these invalid pointers, triggering a use-after-free condition. A local attacker could exploit this issue to cause memory corruption and crash the system."], "name": "CVE-2026-98217", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98217\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98217\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98217.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,791471421d848ce13e84f4b21c9e19973d471c4e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,734f066933484f6c7cedea0312763249beed5845)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,a07bee32127d7c4cd3b1bb9a088e21d0c93634c9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,cf20d7476754c00eec04ae23d3e929de33ce0345)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,0c3482e965b18bc242e54e899d1c4d391ca8e5e3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,ffb80872617b5f9b3dd1536ec2909029fa66f228)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,ced1186fea7c77e16681c7ef4802897885989c3b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c1e7e466120b80ce49e91af0c9da1ce6dee4844a,1af874e9f4ce22ccf8b10ab5462f32c70d3be21a)"}}], "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": "generic", "value": "3.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.271,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.222,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.189,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.158,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "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": "2026-10-06T12:15:15.079435+00:00", "updated": "2026-10-10T02:15:14.714093+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-825"]}