syzbot

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(ffffffff830b1620) at panic+0x1ba sys/kern/subr_prf.c:229
__assert(ffffffff83067bad,ffffffff8303b33a,bc,ffffffff82fee1db) at __assert+0x29
unveil_destroy(ffff8000ffff6f30) at unveil_destroy+0x1dd sys/kern/kern_unveil.c:188
exit1(ffff80002a48cce0,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233
sys_exit(ffff80002a48cce0,ffff800035c7fb70,ffff800035c7fac0) at sys_exit+0x1a
syscall(ffff800035c7fb70) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x70956db51740, count: 250
End of stack trace.