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Test your applicationsUpgrade SLES:15.3 kernel-devel to version 5.3.18-150300.59.201.1 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-devel package and not the kernel-devel package as distributed by SLES.
See How to fix? for SLES:15.3 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.