Riskcovery

CVE-2026-74258

bpf: Guard __get_user acesss with access_ok for uprobe_multi data

State
Published
Severity
7.8 High
Published
Aug 15, 2026
Updated
Oct 16, 2026
Reserved
Aug 15, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: Guard __get_user acesss with access_ok for uprobe_multi data

As reported by sashiko [1] we need to use access_ok to check the user space data bounds before we use __get-user to get it.

[1] https://lore.kernel.org/bpf/20260610145235.CB1441F00893@smtp.kernel.org/

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 89ae89f53d201143560f1e9ed4bfa62eee34f88e to before ff6c5ee77dcc98381290d16af53f6262625870a6Affected
  • 89ae89f53d201143560f1e9ed4bfa62eee34f88e to before 2c387db784293256d35fd3d438f577cc82bb823dAffected
  • 89ae89f53d201143560f1e9ed4bfa62eee34f88e to before a9f1395028c2bbe18e57864cc355c11faff488cbAffected
  • 89ae89f53d201143560f1e9ed4bfa62eee34f88e to before c6d51ad36490013ee9df94a372d3bf794bd304d1Affected
  • 89ae89f53d201143560f1e9ed4bfa62eee34f88e to before 4d87a251d45b4a95eb4c0abcfab809c9f231258aAffected
LinuxLinux
  • 6.6Affected
  • before 6.6Not affected
  • 6.6.158 through 6.6.*Not affected
  • 6.12.111 through 6.12.*Not affected
  • 6.18.53 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

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