Bug 2418875 (CVE-2025-40252)

Summary: CVE-2025-40252 kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()
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 2025-12-04 17:02:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()

The loops in 'qede_tpa_cont()' and 'qede_tpa_end()', iterate
over 'cqe->len_list[]' using only a zero-length terminator as
the stopping condition. If the terminator was missing or
malformed, the loop could run past the end of the fixed-size array.

Add an explicit bound check using ARRAY_SIZE() in both loops to prevent
a potential out-of-bounds access.

Found by Linux Verification Center (linuxtesting.org) with SVACE.
Comment 1 Alexander B 2025-12-05 14:12:53 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120431-CVE-2025-40252-2d9b@gregkh/T