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Unrated severityNVD Advisory· Published Jul 29, 2024· Updated Nov 3, 2025

ila: block BH in ila_output()

CVE-2024-41081

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().

Affected products

120

Patches

8
b4eb25a3d70d
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
feac2391e26b
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
a0cafb7b0b94
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
96103371091c
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
7435bd2f84a2
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
9f9c79d8e527
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
522c3336c202
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
cf28ff8e4c02
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

8

News mentions

0

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