From: Sishuai Gong <sishuai.system@xxxxxxxxx> Date: Wed, 9 Aug 2023 20:30:37 -0400 > Hi, > > We observed races over (struct ctl_table *) table->data when two threads > are running proc_do_sync_threshold() in parallel, as shown below: > > Thread-1 Thread-2 > memcpy(val, valp, sizeof(val)); memcpy(valp, val, sizeof(val)); > > This race probably would mess up table->data. Is it better to add a lock? Yes, we should acquire mutex/seqlock etc.
