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Start learningUpgrade RHEL:9
kernel-core
to version 0:5.14.0-162.6.1.el9_1 or higher.
This issue was patched in RHSA-2022:8267
.
Note: Versions mentioned in the description apply only to the upstream kernel-core
package and not the kernel-core
package as distributed by RHEL
.
See How to fix?
for RHEL:9
relevant fixed versions and status.
In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.