NULL Pointer Dereference Affecting kernel-rt-kvm package, versions *
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTKVM-6337505
- published 29 Feb 2024
- disclosed 28 Feb 2024
Introduced: 28 Feb 2024
CVE-2021-47003 Open this link in a new tabHow to fix?
There is no fixed version for Centos:8 kernel-rt-kvm.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix potential null dereference on pointer status
There are calls to idxd_cmd_exec that pass a null status pointer however a recent commit has added an assignment to *status that can end up with a null pointer dereference. The function expects a null status pointer sometimes as there is a later assignment to *status where status is first null checked. Fix the issue by null checking status before making the assignment.
Addresses-Coverity: ("Explicit null dereferenced")
References
- https://access.redhat.com/security/cve/CVE-2021-47003
- https://git.kernel.org/stable/c/2280b4cc29d8cdd2be3d1b2d1ea4f958e2131c97
- https://git.kernel.org/stable/c/28ac8e03c43dfc6a703aa420d18222540b801120
- https://git.kernel.org/stable/c/5756f757c72501ef1a16f5f63f940623044180e9
- https://git.kernel.org/stable/c/7bc402f843e7817a4a808e7b9ab0bcd7ffd55bfa