Race Condition Affecting kernel-modules package, versions <0:4.18.0-553.27.1.el8_10
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Test your applications- Snyk ID SNYK-ROCKY8-KERNELMODULES-8365707
- published 9 Nov 2024
- disclosed 9 Oct 2024
Introduced: 9 Oct 2024
CVE-2024-47668 Open this link in a new tabHow to fix?
Upgrade Rocky-Linux:8 kernel-modules to version 0:4.18.0-553.27.1.el8_10 or higher.
This issue was patched in RLSA-2024:8856.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-modules package and not the kernel-modules package as distributed by Rocky-Linux.
See How to fix? for Rocky-Linux:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()
If we need to increase the tree depth, allocate a new node, and then race with another thread that increased the tree depth before us, we'll still have a preallocated node that might be used later.
If we then use that node for a new non-root node, it'll still have a pointer to the old root instead of being zeroed - fix this by zeroing it in the cmpxchg failure path.
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47668
- https://git.kernel.org/stable/c/0f078f8ca93b28a34e20bd050f12cd4efeee7c0f
- https://git.kernel.org/stable/c/0f27f4f445390cb7f73d4209cb2bf32834dc53da
- https://git.kernel.org/stable/c/99418ec776a39609f50934720419e0b464ca2283
- https://git.kernel.org/stable/c/ad5ee9feebc2eb8cfc76ed74a2d6e55343b0e169
- https://git.kernel.org/stable/c/b2f11c6f3e1fc60742673b8675c95b78447f3dae
- https://git.kernel.org/stable/c/d942e855324a60107025c116245095632476613e
- https://git.kernel.org/stable/c/ebeff038744c498a036e7a92eb8e433ae0a386d7