Bug 2363515 (CVE-2022-49809)

Summary: CVE-2022-49809 kernel: net/x25: Fix skb leak in x25_lapb_receive_frame()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-01 15:07:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net/x25: Fix skb leak in x25_lapb_receive_frame()

x25_lapb_receive_frame() using skb_copy() to get a private copy of
skb, the new skb should be freed in the undersized/fragmented skb
error handling path. Otherwise there is a memory leak.
Comment 1 Avinash Hanwate 2025-05-02 05:45:13 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050129-CVE-2022-49809-770f@gregkh/T