Bug 2396428 (CVE-2023-53384)

Summary: CVE-2023-53384 kernel: wifi: mwifiex: avoid possible NULL skb pointer dereference
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
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OS: Linux   
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Description OSIDB Bzimport 2025-09-18 14:04:37 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mwifiex: avoid possible NULL skb pointer dereference

In 'mwifiex_handle_uap_rx_forward()', always check the value
returned by 'skb_copy()' to avoid potential NULL pointer
dereference in 'mwifiex_uap_queue_bridged_pkt()', and drop
original skb in case of copying failure.

Found by Linux Verification Center (linuxtesting.org) with SVACE.
Comment 1 Keith Grant 2025-09-18 16:50:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091857-CVE-2023-53384-042e@gregkh/T