{"id":"CVE-2026-90159","summary":"bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks\n\n_bpf_setsockopt() and _bpf_getsockopt() call sock_owned_by_me() for\nfull sockets, so these helpers expect the socket lock to be held.\n\nBPF_CGROUP_UNIX_GETPEERNAME and BPF_CGROUP_UNIX_GETSOCKNAME run BPF\nprograms without acquiring the socket lock. A program attached to\neither hook can therefore trigger the sock_owned_by_me() warning by\ncalling bpf_setsockopt() or bpf_getsockopt().\n\nDisallow bpf_setsockopt() and bpf_getsockopt() for CGROUP_UNIX_GETPEERNAME\nand CGROUP_UNIX_GETSOCKNAME.","modified":"2026-09-19T03:47:25.448260187Z","published":"2026-09-17T16:06:51.151Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90159.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/61769b9c882a964af3a6ebd9a8e43615f8713234"},{"type":"WEB","url":"https://git.kernel.org/stable/c/84473a7e1813a2da7b759ab1d098a84998c8d3f5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/daeb74f5f398e847d1d42906aec6610406a34fdc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90159.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90159"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"859051dd165ec6cc915f0f2114699021144fd249"},{"fixed":"61769b9c882a964af3a6ebd9a8e43615f8713234"},{"fixed":"fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6"},{"fixed":"daeb74f5f398e847d1d42906aec6610406a34fdc"},{"fixed":"84473a7e1813a2da7b759ab1d098a84998c8d3f5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90159.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90159.json"}}],"schema_version":"1.9.0"}