Bug 2367535 (CVE-2025-37909)

Summary: CVE-2025-37909 kernel: net: lan743x: Fix memleak issue when GSO enabled
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: low    
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 2025-05-20 16:02:50 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: lan743x: Fix memleak issue when GSO enabled

Always map the `skb` to the LS descriptor. Previously skb was
mapped to EXT descriptor when the number of fragments is zero with
GSO enabled. Mapping the skb to EXT descriptor prevents it from
being freed, leading to a memory leak
Comment 1 Jon Moroney 2025-05-20 22:01:14 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052058-CVE-2025-37909-f6da@gregkh/T