panic: kernel diagnostic assertion "ps->ps_uvncount == 0" failed: file "/syzkaller/managers/multicore/kernel/sys/kern/kern_unveil.c", line 188
Stopped at      db_enter+0x1c:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
 319142   8498      0     0x14000      0x200    1  reaper
db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff827a5b43) at panic+0x17b sys/kern/subr_prf.c:198
__assert(ffffffff828207b7,ffffffff8282550b,bc,ffffffff827bb8de) at __assert+0x29 sys/kern/subr_prf.c:157
unveil_destroy(ffff800027b7c880) at unveil_destroy+0x1a4 sys/kern/kern_unveil.c:188
exit1(ffff800021237078,0,0,1) at exit1+0x3d5 sys/kern/kern_exit.c:220
sys_exit(ffff800021237078,ffff800022d09c40,ffff800022d09c90) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff800022d09d10) at syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline]
syscall(ffff800022d09d10) at syscall+0x5e2 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7428128927c0, count: 7
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