Unrated severityNVD Advisory· Published May 27, 2026· Updated May 27, 2026

CVE-2026-45847

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Ubuntu/Linux Kernelllm-fuzzy
osv-coords
pkg:linux/kernel
Range: >= 5.13.0, < 5.15.202

Patches

Vulnerability mechanics

References

git.kernel.org/stable/c/008e7a7c293b30bc43e4368dac6ea3808b75a572nvd
git.kernel.org/stable/c/50422613185d505201167e8bdd2f2700790d5db6nvd
git.kernel.org/stable/c/548244c2f542aa0ad49453e9306e715a3877bc44nvd
git.kernel.org/stable/c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6nvd
git.kernel.org/stable/c/959ea349c7e2d4edf07b6838ca7e59345fe61a08nvd
git.kernel.org/stable/c/a78d055ba7c31103ad02f8eceb0c452e154d2660nvd
git.kernel.org/stable/c/dcf9b3c90e5560339649d088836529883fb509f3nvd

News mentions

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cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000