Vulnerability details
CVE-2026-74258
Linux Linux
bpf: Guard __get_user acesss with access_ok for uprobe_multi data
CVSS 3.1
7.8High
Official 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/
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 89ae89f53d201143560f1e9ed4bfa62eee34f88e ≤ v < ff6c5ee77dcc98381290d16af53f6262625870a6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 89ae89f53d201143560f1e9ed4bfa62eee34f88e ≤ v < 2c387db784293256d35fd3d438f577cc82bb823d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 89ae89f53d201143560f1e9ed4bfa62eee34f88e ≤ v < a9f1395028c2bbe18e57864cc355c11faff488cb | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 89ae89f53d201143560f1e9ed4bfa62eee34f88e ≤ v < c6d51ad36490013ee9df94a372d3bf794bd304d1 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 89ae89f53d201143560f1e9ed4bfa62eee34f88e ≤ v < 4d87a251d45b4a95eb4c0abcfab809c9f231258a | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/ff6c5ee77dcc98381290d16af53f6262625870a6
- https://git.kernel.org/stable/c/2c387db784293256d35fd3d438f577cc82bb823d
- https://git.kernel.org/stable/c/a9f1395028c2bbe18e57864cc355c11faff488cb
- https://git.kernel.org/stable/c/c6d51ad36490013ee9df94a372d3bf794bd304d1
- https://git.kernel.org/stable/c/4d87a251d45b4a95eb4c0abcfab809c9f231258a
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Details
- Published
- 2026-08-15
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.16%
Probability of exploitation in 30 days
6.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —