Vulnerability details
CVE-2026-46150
Linux LinuxSiemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
fanotify: fix false positive on permission events
CVSS 3.1
7.1High
Official description
In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.1High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < 04bb66be92f48ed13c3faf1139d892df228789bc | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < 895ebbedf88318607c24acc0f591c74b165e1d0a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < f130790f1acc8399f32652846c875a251efd040f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < b7b24b28c8cd55844cab908f4f39dded638d5538 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < 7746e3bd4cc19b5092e00d32d676e329bfcb6900 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | abc77577a669f424c5d0c185b9994f2621c52aa4 ≤ v < a24765332e129c1916d5a6615418b75599b8fcdc | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | All | CVEProject cvelistV5 (CNA) |
References and advisories
9- https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdc
- https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11
- https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc
- https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a
- https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f
- https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678
- https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538
- https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
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Details
- Published
- 2026-05-28
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.13%
Probability of exploitation in 30 days
2.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-863Incorrect Authorization