{"id":"CVE-2026-90159","published":"2026-09-17T17:17:09.080","lastModified":"2026-09-17T17:17:09.080","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/61769b9c882a964af3a6ebd9a8e43615f8713234","tags":[]},{"url":"https://git.kernel.org/stable/c/84473a7e1813a2da7b759ab1d098a84998c8d3f5","tags":[]},{"url":"https://git.kernel.org/stable/c/daeb74f5f398e847d1d42906aec6610406a34fdc","tags":[]},{"url":"https://git.kernel.org/stable/c/fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}