Bug 2376376 (CVE-2025-38180)

Summary: CVE-2025-38180 kernel: net: atm: fix /proc/net/atm/lec handling
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-07-04 14:02:22 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: atm: fix /proc/net/atm/lec handling

/proc/net/atm/lec must ensure safety against dev_lec[] changes.

It appears it had dev_put() calls without prior dev_hold(),
leading to imbalance and UAF.
Comment 1 Mauro Matteo Cascella 2025-07-04 19:09:17 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025070410-CVE-2025-38180-c6d0@gregkh/T