CVE-2026-31670net: rfkill: prevent unlimited numbers of rfkill events from being created
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: net: rfkill: prevent unlimited numbers of rfkill events from being created Userspace can create an unlimited number of rfkill events if the system is so configured, while not consuming them from the rfkill file descriptor, causing a potential out of memory situation. Prevent this from bounding the number of pending rfkill events at a "large" number (i.e. 1000) to prevent abuses like this.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- 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
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c64fb01627e24725d1f9d535e4426475a4415753 before 4bcd1615a4e2a185ae9edd27b4143d7dfa7134f4; from c64fb01627e24725d1f9d535e4426475a4415753 before b1e0c8d3ab58a0161db487bf5fc47adfcaf5d5ca; from c64fb01627e24725d1f9d535e4426475a4415753 before e3842779547c83150569071d9980517cc9029fc0; from c64fb01627e24725d1f9d535e4426475a4415753 before 673d2a3eef6e0ee9736501a150c9e4024a4e60a6; from c64fb01627e24725d1f9d535e4426475a4415753 before 82843afc19012a29ba863961ef494165aa1a88f4; from c64fb01627e24725d1f9d535e4426475a4415753 before a8c26800e0220e1550af012f5a20e50f5c78864d; from c64fb01627e24725d1f9d535e4426475a4415753 before 80ce4cb026f0a4c4532b6cad827b44debda6256a; from c64fb01627e24725d1f9d535e4426475a4415753 before ea245d78dec594372e27d8c79616baf49e98a4a1 | CNA record |
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP siemens:simatic_s7_1500_cpu_1518f_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP siemens:siplus_s7_1500_cpu_1518_4_pn_dp_mfp (from the name) | from V3.1.6 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 2.6.31.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.169; from 6.2 before 6.6.135; from 6.7 before 6.12.82; from 6.13 before 6.18.23; from 6.19 before 6.19.13; 2.6.31; and 7 more ranges | NVD |
References
- https://git.kernel.org/stable/c/4bcd1615a4e2a185ae9edd27b4143d7dfa7134f4patch
- https://git.kernel.org/stable/c/b1e0c8d3ab58a0161db487bf5fc47adfcaf5d5capatch
- https://git.kernel.org/stable/c/e3842779547c83150569071d9980517cc9029fc0patch
- https://git.kernel.org/stable/c/673d2a3eef6e0ee9736501a150c9e4024a4e60a6patch
- https://git.kernel.org/stable/c/82843afc19012a29ba863961ef494165aa1a88f4patch
- https://git.kernel.org/stable/c/a8c26800e0220e1550af012f5a20e50f5c78864dpatch
- https://git.kernel.org/stable/c/80ce4cb026f0a4c4532b6cad827b44debda6256apatch
- https://git.kernel.org/stable/c/ea245d78dec594372e27d8c79616baf49e98a4a1patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
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.