CVE-2022-49026: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: e100: Fix possible use after free in e100_xmit_prepare In e100_xmit_prepare(), if we can't map the skb, then return -ENOMEM, so e100_xmit_frame() will return NETDEV_TX_BUSY and the upper layer will resend the skb. But the skb is already freed, which will cause UAF bug when the upper layer resends the skb. Remove the harmful free.

Affected products

• Linux Linux Kernel: from 4.3, before 5.10.158 (fixed in 5.10.158); from 5.11, before 5.15.82 (fixed in 5.15.82); from 5.16, before 6.0.12 (fixed in 6.0.12); version 6.1 only

Published 2024-10-21. Last modified 2026-08-04.