Unchecked Return Value to NULL Pointer Dereference Affecting kernel-debug-modules package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGMODULES-6607524
- published 12 Apr 2024
- disclosed 10 Apr 2024
Introduced: 10 Apr 2024
CVE-2021-47186 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8 kernel-debug-modules.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules package and not the kernel-debug-modules 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:
tipc: check for null after calling kmemdup
kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1].
[1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58