CVE-2026-90159bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks _bpf_setsockopt() and _bpf_getsockopt() call sock_owned_by_me() for full sockets, so these helpers expect the socket lock to be held. BPF_CGROUP_UNIX_GETPEERNAME and BPF_CGROUP_UNIX_GETSOCKNAME run BPF programs without acquiring the socket lock. A program attached to either hook can therefore trigger the sock_owned_by_me() warning by calling bpf_setsockopt() or bpf_getsockopt(). Disallow bpf_setsockopt() and bpf_getsockopt() for CGROUP_UNIX_GETPEERNAME and CGROUP_UNIX_GETSOCKNAME.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 859051dd165ec6cc915f0f2114699021144fd249 builds before 61769b9c882a964af3a6ebd9a8e43615f8713234; from 859051dd165ec6cc915f0f2114699021144fd249 before fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6; from 859051dd165ec6cc915f0f2114699021144fd249 before daeb74f5f398e847d1d42906aec6610406a34fdc; 859051dd165ec6cc915f0f2114699021144fd249 builds before 84473a7e1813a2da7b759ab1d098a84998c8d3f5 | CNA record |
References
- https://git.kernel.org/stable/c/61769b9c882a964af3a6ebd9a8e43615f8713234
- https://git.kernel.org/stable/c/fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6
- https://git.kernel.org/stable/c/daeb74f5f398e847d1d42906aec6610406a34fdc
- https://git.kernel.org/stable/c/84473a7e1813a2da7b759ab1d098a84998c8d3f5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.