CVE-2026-31670
Medium
Description
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 24, 2026
First seenApr 24, 2026
How to fix
Update
- linux linux_kernel5.10.253, 5.15.203, 6.1.169, 6.6.135, 6.12.82, 6.18.23, 6.19.13 or later
Patches
- git.kernel.org/stable/c/4bcd1615a4e2a185ae9edd27b4143d7dfa7134f4
- git.kernel.org/stable/c/673d2a3eef6e0ee9736501a150c9e4024a4e60a6
- git.kernel.org/stable/c/80ce4cb026f0a4c4532b6cad827b44debda6256a
- git.kernel.org/stable/c/82843afc19012a29ba863961ef494165aa1a88f4
- git.kernel.org/stable/c/a8c26800e0220e1550af012f5a20e50f5c78864d
- git.kernel.org/stable/c/b1e0c8d3ab58a0161db487bf5fc47adfcaf5d5ca
- git.kernel.org/stable/c/e3842779547c83150569071d9980517cc9029fc0
- git.kernel.org/stable/c/ea245d78dec594372e27d8c79616baf49e98a4a1
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.31.1 ≤ v < 5.10.253, 5.11 ≤ v < 5.15.203, 5.16 ≤ v < 6.1.169, 6.2 ≤ v < 6.6.135, 6.7 ≤ v < 6.12.82, 6.13 ≤ v < 6.18.23, 6.19 ≤ v < 6.19.13, 2.6.31, 7.0 | 5.10.253, 5.15.203, 6.1.169, 6.6.135, 6.12.82, 6.18.23, 6.19.13 |
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