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Test your applicationsThere is no fixed version for Centos:9
kernel-rt-64k-devel-matched
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k-devel-matched
package and not the kernel-rt-64k-devel-matched
package as distributed by Centos
.
See How to fix?
for Centos:9
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
cacheinfo: Fix shared_cpu_map to handle shared caches at different levels
The cacheinfo sets up the shared_cpu_map by checking whether the caches with the same index are shared between CPUs. However, this will trigger slab-out-of-bounds access if the CPUs do not have the same cache hierarchy. Another problem is the mismatched shared_cpu_map when the shared cache does not have the same index between CPUs.
CPU0 I D L3 index 0 1 2 x ^ ^ ^ ^ index 0 1 2 3 CPU1 I D L2 L3
This patch checks each cache is shared with all caches on other CPUs.