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(ffffffff8279bd0a) at panic+0x16f sys/kern/subr_prf.c:229
__assert(ffffffff8281ebaf,ffffffff82823b10,bc,ffffffff827b9c9d) at __assert+0x29 sys/kern/subr_prf.c:157
unveil_destroy(ffff8000ffff90c8) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188
exit1(ffff8000212922e8,0,0,3) at exit1+0x3d5 sys/kern/kern_exit.c:220
single_thread_check_locked(ffff8000212922e8,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2015
userret(ffff8000212922e8) at userret+0x7c single_thread_check sys/kern/kern_sig.c:2054 [inline]
userret(ffff8000212922e8) at userret+0x7c sys/kern/kern_sig.c:1970
intr_user_exit() at intr_user_exit+0x3c
end of kernel
end trace frame: 0x74348367e520, count: 250
End of stack trace.