In the Linux kernel, the following vulnerability has been resolved:[EOL][EOL]ext4: fix potential memory leak in ext4_fc_record_regions()[EOL][EOL]As krealloc may return NULL, in this case 'state->fc_regions' may not be[EOL]freed by krealloc, but 'state->fc_regions' already set NULL. Then will[EOL]lead to 'state->fc_regions' memory leak.