CVE-2026-45847
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 27, 2026
First seenMay 27, 2026
Weakness typeCWE-617CWE-617
How to fix
Update
- linux linux_kernel5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 or later
Patches
- git.kernel.org/stable/c/008e7a7c293b30bc43e4368dac6ea3808b75a572
- git.kernel.org/stable/c/50422613185d505201167e8bdd2f2700790d5db6
- git.kernel.org/stable/c/548244c2f542aa0ad49453e9306e715a3877bc44
- git.kernel.org/stable/c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6
- git.kernel.org/stable/c/959ea349c7e2d4edf07b6838ca7e59345fe61a08
- git.kernel.org/stable/c/a78d055ba7c31103ad02f8eceb0c452e154d2660
- git.kernel.org/stable/c/dcf9b3c90e5560339649d088836529883fb509f3
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.13 ≤ v < 5.15.202, 5.16 ≤ v < 6.1.165, 6.2 ≤ v < 6.6.128, 6.7 ≤ v < 6.12.75, 6.13 ≤ v < 6.18.14, 6.19 ≤ v < 6.19.4 | 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4 |
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