panic: kernel diagnostic assertion "ps->ps_uvncount == 0" faile d: file "/syzkaller/managers/main/kernel/sys/kern/kern_unveil.c ", line 188 Starting stack trace... panic(ffffffff830b234c) at panic+0x1ba sys/kern/subr_prf.c:229 __assert(ffffffff830679a2,ffffffff8303bf3f,bc,ffffffff82fef017) at __assert+0x29 unveil_destroy(ffff8000ffffa698) at unveil_destroy+0x1dd sys/kern/kern_unveil.c:188 exit1(ffff80002a47bc30,b,0,1) at exit1+0x60f sys/kern/kern_exit.c:233 sys_exit(ffff80002a47bc30,ffff80002a53d1f0,ffff80002a53d140) at sys_exit+0x1a syscall(ffff80002a53d1f0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a871b37d670, count: 250 End of stack trace.