Bug 2426025 (CVE-2022-50832)

Summary: CVE-2022-50832 kernel: Linux kernel: Memory leak in wilc1000 Wi-Fi driver causes Denial of Service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in the Linux kernel's wilc1000 Wi-Fi driver. A local attacker with low privileges could exploit a memory leak in the wilc_mac_xmit() function, which fails to free a socket buffer (skb) under certain conditions. This resource exhaustion vulnerability can lead to a Denial of Service (DoS) on the affected system.
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Description OSIDB Bzimport 2025-12-30 13:02:57 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: wilc1000: fix potential memory leak in wilc_mac_xmit()

The wilc_mac_xmit() returns NETDEV_TX_OK without freeing skb, add
dev_kfree_skb() to fix it. Compile tested only.
Comment 1 Alexander B 2025-12-31 14:49:23 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123016-CVE-2022-50832-4207@gregkh/T