Bug 2360189 (CVE-2025-22110)

Summary: CVE-2025-22110 kernel: netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-04-16 15:01:52 UTC
In the Linux kernel, the following vulnerability has been resolved:

netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error

It is possible that ctx in nfqnl_build_packet_message() could be used
before it is properly initialize, which is only initialized
by nfqnl_get_sk_secctx().

This patch corrects this problem by initializing the lsmctx to a safe
value when it is declared.

This is similar to the commit 35fcac7a7c25
("audit: Initialize lsmctx to avoid memory allocation error").

Comment 1 Avinash Hanwate 2025-04-17 16:53:42 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041624-CVE-2025-22110-6a28@gregkh/T