Detections
Analytics
CVE-2022-49026
high
Description
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.
References
https://git.kernel.org/stable/c/b775f37d943966f6f77dca402f5a9dedce502c25
https://git.kernel.org/stable/c/b46f6144ab89d3d757ead940759c505091626a7d
https://git.kernel.org/stable/c/9fc27d22cdb9b1fcd754599d216a8992fed280cd
https://git.kernel.org/stable/c/45605c75c52c7ae7bfe902214343aabcfe5ba0ff