CVE-2021-46991 Information

Description

In the Linux kernel the following vulnerability has been resolved:

i40e: Fix use-after-free in i40e_client_subtask()

Currently the call to i40e_client_del_instance frees the object pf->cinst however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return.

Addresses-Coverity: (\Read from pointer after free)

Reference

https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84 https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132 https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107 https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1 https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323 https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3