CVE-2026-98097 tipc: Dont send random pad bytes in RESET/ACTIVATE messages

Medium 5.3 Published Updated

An attacker can read uninitialized kernel memory via TIPC protocol messages, potentially exposing sensitive data.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-98097?

CVE-2026-98097 is a medium-severity vulnerability in Linux kernel, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

tipc: Dont send random pad bytes in RESET/ACTIVATE messages

The interface name is passed in a fixed length (TIPC_MAX_IF_NAME) buffer. Replace the strcpy(data, l->if_name) with memcpy() so that the pad bytes are actually written (l->if_name[] is zero padded) rather than sending random bytes from the skb to the remote system.

Replace two other strcpy() with strscpy().

Which versions are affected by CVE-2026-98097?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-98097?

Apply the vendor's patch.

Is CVE-2026-98097 being exploited?

There is no known exploitation of CVE-2026-98097 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-104409, BELL-CVE-2026-98097, DEBIAN-CVE-2026-98097, GHSA-3hxh-h963-cm8c, UBUNTU-CVE-2026-98097.

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