Use After Free Affecting kernel-rt package, versions *
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-RHEL7-KERNELRT-6326808
- published 29 Feb 2024
- disclosed 28 Feb 2024
Introduced: 28 Feb 2024
CVE-2021-46991 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-rt.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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://access.redhat.com/security/cve/CVE-2021-46991
- 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