panic: kernel diagnostic assertion "ps->ps_uvncount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 188 Starting stack trace... panic(ffffffff827a5b43) at panic+0x16f sys/kern/subr_prf.c:229 __assert(ffffffff828207b7,ffffffff8282550b,bc,ffffffff827bb8de) at __assert+0x29 sys/kern/subr_prf.c:157 unveil_destroy(ffff8000ffff9d58) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188 exit1(ffff8000246f78c8,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220 single_thread_check_locked(ffff8000246f78c8,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015 userret(ffff8000246f78c8) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline] userret(ffff8000246f78c8) at userret+0x7c sys/kern/kern_sig.c:1970 intr_user_exit() at intr_user_exit+0x3c end of kernel end trace frame: 0x7073480b3630, count: 250 End of stack trace.