CVE-2026-99129

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-99129", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.394Z", "datePublished": "2026-10-28T10:34:42.881Z", "dateUpdated": "2026-10-28T10:34:42.881Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-28T10:34:42.881Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: fix BPF token permission checks\n\nAvoid multiple lookups of the bpffs creator SID using the token's file\ndescriptor when the same information can be found via the resolved\npath/dentry (in selinux_bpf_token_create()) or the token itself (in\nselinux_bpf_map_create() and selinux_bpf_prog_load()). Not only does\nthis simplify the code, it avoids potential TOCTOU issues if the user\nchanges the token file descriptor passed into the kernel."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/selinux/hooks.c"], "versions": [{"version": "5473a722f782f79f96b4691400d681c01fcacc2f", "lessThan": "e1ef306ba20eb13099ca4463527890df67619405", "status": "affected", "versionType": "git"}, {"version": "5473a722f782f79f96b4691400d681c01fcacc2f", "lessThan": "77d499e61d36e883a6ad1f10afe05f556aa7e0cc", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["security/selinux/hooks.c"], "versions": [{"version": "7.0", "status": "affected"}, {"version": "0", "lessThan": "7.0", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.13", "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": "7.0", "versionEndExcluding": "7.2.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405"}, {"url": "https://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc"}], "title": "selinux: fix BPF token permission checks", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["security/selinux/hooks.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e1ef306ba20eb13099ca4463527890df67619405", "status": "affected", "version": "5473a722f782f79f96b4691400d681c01fcacc2f", "versionType": "git"}, {"lessThan": "77d499e61d36e883a6ad1f10afe05f556aa7e0cc", "status": "affected", "version": "5473a722f782f79f96b4691400d681c01fcacc2f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["security/selinux/hooks.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.0"}, {"lessThan": "7.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.13", "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\nselinux: fix BPF token permission checks\n\nAvoid multiple lookups of the bpffs creator SID using the token's file\ndescriptor when the same information can be found via the resolved\npath/dentry (in selinux_bpf_token_create()) or the token itself (in\nselinux_bpf_map_create() and selinux_bpf_prog_load()). Not only does\nthis simplify the code, it avoids potential TOCTOU issues if the user\nchanges the token file descriptor passed into the kernel."}], "id": "CVE-2026-99129", "lastModified": "2026-10-28T11:17:32.690", "metrics": {}, "published": "2026-10-28T11:17:32.690", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: kernel: Security bypass via race condition in SELinux BPF token validation", "id": "2562691", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562691"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-367", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nselinux: fix BPF token permission checks\nAvoid multiple lookups of the bpffs creator SID using the token's file\ndescriptor when the same information can be found via the resolved\npath/dentry (in selinux_bpf_token_create()) or the token itself (in\nselinux_bpf_map_create() and selinux_bpf_prog_load()). Not only does\nthis simplify the code, it avoids potential TOCTOU issues if the user\nchanges the token file descriptor passed into the kernel.", "A flaw was found in the Linux kernel. A local user could exploit a time-of-check to time-of-use (TOCTOU) race condition during Security-Enhanced Linux (SELinux) permission checks for Berkeley Packet Filter (BPF) tokens. By altering a token file descriptor between kernel lookups, an attacker could bypass access control restrictions and perform unauthorized BPF operations."], "name": "CVE-2026-99129", "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"}], "public_date": "2026-10-28T10:34:42Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-99129\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-99129\nhttps://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc\nhttps://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5473a722f782f79f96b4691400d681c01fcacc2f,e1ef306ba20eb13099ca4463527890df67619405)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5473a722f782f79f96b4691400d681c01fcacc2f,77d499e61d36e883a6ad1f10afe05f556aa7e0cc)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5473a722f782f79f96b4691400d681c01fcacc2f,e1ef306ba20eb13099ca4463527890df67619405)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5473a722f782f79f96b4691400d681c01fcacc2f,77d499e61d36e883a6ad1f10afe05f556aa7e0cc)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"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": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.13,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-28T11:45:09.959408+00:00", "updated": "2026-10-30T05:30:09.660307+00:00", "vendors": ["linux", "linux$PRODUCT$linux", "linux$PRODUCT$linux_kernel"]}