Bug 2395274 (CVE-2022-50321)

Summary: CVE-2022-50321 kernel: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit()
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 2025-09-15 15:04:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit()

The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb
in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it.
Compile tested only.
Comment 1 Keith Grant 2025-09-15 19:35:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091553-CVE-2022-50321-bba8@gregkh/T