high7.8
CVE-2021-46991
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_ins…
Impact
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")
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.16 before 4.19.191 from 4.20 before 5.4.120 from 5.5 before 5.10.38 from 5.11 before 5.11.22 from 5.12 before 5.12.5 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323
- https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3
- https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1
- https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107
- https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84
- https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132
- https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323
- https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3
- https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1
- https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107
- https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84
- https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132