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Test your applicationsUpgrade RHEL:9
kernel-rt-debug-core
to version 0:5.14.0-70.64.1.rt21.135.el9_0 or higher.
This issue was patched in RHSA-2023:4138
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core
package and not the kernel-rt-debug-core
package as distributed by RHEL
.
See How to fix?
for RHEL:9
relevant fixed versions and status.
A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker.