Use After Free Affecting kernel-debug-core package, versions <0:4.18.0-372.121.1.el8_6
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGCORE-7891653
- published 4 Sep 2024
- disclosed 21 May 2024
Introduced: 21 May 2024
CVE-2021-47378 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-core to version 0:4.18.0-372.121.1.el8_6 or higher.
This issue was patched in RHSA-2024:6297.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-core package and not the kernel-debug-core package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
nvme-rdma: destroy cm id before destroy qp to avoid use after free
We should always destroy cm_id before destroy qp to avoid to get cma event after qp was destroyed, which may lead to use after free. In RDMA connection establishment error flow, don't destroy qp in cm event handler.Just report cm_error to upper level, qp will be destroy in nvme_rdma_alloc_queue() after destroy cm id.