CVE-2021-46991

high

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")

References

https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132

https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84

https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107

https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1

https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3

https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323

Details

Source: Mitre, NVD

Published: 2024-02-28

Updated: 2024-12-06

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High