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+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  76160  41833      0           0          0    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff830f11cf) at panic+0x1e5 sys/kern/subr_prf.c:198
__assert(ffffffff830a8ebd,ffffffff83068186,bc,ffffffff8302add6) at __assert+0x29
unveil_destroy(ffff80002a1d56b0) at unveil_destroy+0x1dd sys/kern/kern_unveil.c:188
exit1(ffff800029fe76f8,0,0,1) at exit1+0x60f sys/kern/kern_exit.c:233
sys_exit(ffff800029fe76f8,ffff80002a156820,ffff80002a156770) at sys_exit+0x1a
syscall(ffff80002a156820) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:178 [inline]
syscall(ffff80002a156820) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7445b0f0b880, count: 7
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