panic: kernel diagnostic assertion "bpfilter_lookup(unit) == NULL" failed: file "/syzkaller/managers/main/kernel/sys/net/bpf.c", line 379
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*174772  38471      0           0  0x4000000    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff834137b5) at panic+0x1cf sys/kern/subr_prf.c:198
__assert(ffffffff83454fd2,ffffffff8343ae84,17b,ffffffff83469eb7) at __assert+0x29 sys/kern/subr_prf.c:-1
bpfopen(11700,21,2000,ffff80002a776fa0) at bpfopen+0x27d
spec_open_clone(ffff80002a7babc8) at spec_open_clone+0x277 sys/kern/spec_vnops.c:722
spec_open(ffff80002a7babc8) at spec_open+0x316 sys/kern/spec_vnops.c:148
VOP_OPEN(fffffd806c8a9ce0,21,fffffd8007ffd8f0,ffff80002a776fa0) at VOP_OPEN+0x82 sys/kern/vfs_vops.c:138
vn_open(ffff80002a7bae20,21,0) at vn_open+0x7a5 sys/kern/vfs_vnops.c:183
doopenat(ffff80002a776fa0,ffffff9c,200000000000,20,0,0,4c839e454f024e83) at doopenat+0x352 sys/kern/vfs_syscalls.c:1155
sys_open(ffff80002a776fa0,ffff80002a7bb0c0,ffff80002a7bb010) at sys_open+0x59 sys/kern/vfs_syscalls.c:1063
syscall(ffff80002a7bb0c0) at syscall+0x962 mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a7bb0c0) at syscall+0x962 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa7632d87410, count: 3
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