CVE-2024-41081 ila: block BH in ila_output()

What is CVE-2024-41081?

CVE-2024-41081 is a critical vulnerability in Linux kernel, published on 29 Jul 2024. 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:

ila: block BH in ila_output()

As explained in commit 1378817486d6 ("tipc: block BH before using dst_cache"), net/core/dst_cache.c helpers need to be called with BH disabled.

ila_output() is called from lwtunnel_output() possibly from process context, and under rcu_read_lock().

We might be interrupted by a softirq, re-enter ila_output() and corrupt dst_cache data structures.

Fix the race by using local_bh_disable().

Which versions are affected by CVE-2024-41081?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-41081?

Apply the vendor's patch.

Is CVE-2024-41081 being exploited?

There is no known exploitation of CVE-2024-41081 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-41081, DEBIAN-CVE-2024-41081, GHSA-q7ch-p7wx-7pf8, UBUNTU-CVE-2024-41081.