{"id":"CVE-2026-99129","title":"selinux: fix BPF token permission checks","summary":"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 t…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 5473a722f782f79f96b4691400d681c01fcacc2f < e1ef306ba20eb13099ca4463527890df67619405","Linux >= 5473a722f782f79f96b4691400d681c01fcacc2f < 77d499e61d36e883a6ad1f10afe05f556aa7e0cc","Linux 7.0"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T10:34:42.881Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99129","references":[{"url":"https://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405"},{"url":"https://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc"}],"tags":["cve.org"],"ingestedAt":"2026-10-28T11:09:40.439Z","epss":0.00156,"epssPercentile":0.04772,"slug":"CVE-2026-99129","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 5473a722f782f79f96b4691400d681c01fcacc2f < e1ef306ba20eb13099ca4463527890df67619405`\n- `Linux >= 5473a722f782f79f96b4691400d681c01fcacc2f < 77d499e61d36e883a6ad1f10afe05f556aa7e0cc`\n- `Linux 7.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}