What’s Vulnerable › Vulnerabilities

CVE-2022-50877: net: broadcom: bcm4908_enet: update TX stats after actual transmission

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: broadcom: bcm4908_enet: update TX stats after actual transmission Queueing packets doesn't guarantee their transmission. Update TX stats after hardware confirms consuming submitted data. This also fixes a possible race and NULL dereference. bcm4908_enet_start_xmit() could try to access skb after freeing it in the bcm4908_enet_poll_tx().

Affected products

• Linux kernel: 5.12 — fixed in 6.1

How to fix

Upgrade to a fixed version: Linux kernel 6.1. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2adedc80faec243ede55355e57142110d6f46e08
• https://git.kernel.org/stable/c/c9589e18a60c55c76772a38117ef9a16b942e56b
• https://git.kernel.org/stable/c/ef3556ee16c68735ec69bd08df41d1cd83b14ad3

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