Riskcovery

CVE-2026-90159

bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks

State
Published
Severity
Not scored
Published
Sep 17, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 859051dd165ec6cc915f0f2114699021144fd249 to before 61769b9c882a964af3a6ebd9a8e43615f8713234Affected
  • 859051dd165ec6cc915f0f2114699021144fd249 to before fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6Affected
  • 859051dd165ec6cc915f0f2114699021144fd249 to before daeb74f5f398e847d1d42906aec6610406a34fdcAffected
  • 859051dd165ec6cc915f0f2114699021144fd249 to before 84473a7e1813a2da7b759ab1d098a84998c8d3f5Affected
LinuxLinux
  • 6.7Affected
  • before 6.7Not affected
  • 6.12.110 through 6.12.*Not affected
  • 6.18.52 through 6.18.*Not affected
  • 7.2.6 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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