panic: kernel diagnostic assertion "tname->un_flags & UNVEIL_USERSET" failed: file "/syzkaller/managers/main/kernel/sys/kern/kern_unveil.c", line 879
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*462207  46434  60929        0x10  0x4000000    0  syz-executor.0
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:208
__assert(ffffffff81f459f9,ffffffff81ef283c,36f,ffffffff81f53e28) at __assert+0x2e sys/kern/subr_prf.c:155
unveil_check_final(ffff8000fffee4c8,ffff8000149f05c8) at unveil_check_final+0x805 sys/kern/kern_unveil.c:879
namei(ffff8000149f05c8) at namei+0x88a sys/kern/vfs_lookup.c:232
domknodat(ffff8000fffee4c8,ffffff9c,20000040,2000,0) at domknodat+0xa1 sys/kern/vfs_syscalls.c:1405
syscall(ffff8000149f0890) at syscall+0x541
Xsyscall(6,0,ffffffffffffff96,0,3,74a21813010) at Xsyscall+0x128
end of kernel
end trace frame: 0x74cfb8da880, count: 7
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