Bug 2378986 (CVE-2025-38251)

Summary: CVE-2025-38251 kernel: atm: clip: prevent NULL deref in clip_push()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-07-09 11:01:54 UTC 
In the Linux kernel, the following vulnerability has been resolved:

atm: clip: prevent NULL deref in clip_push()

Blamed commit missed that vcc_destroy_socket() calls
clip_push() with a NULL skb.

If clip_devs is NULL, clip_push() then crashes when reading
skb->truesize.
Comment 1 Jon Moroney 2025-07-09 18:02:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070934-CVE-2025-38251-3894@gregkh/T