syzbot

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Too BIG xdp->frame_sz = 131072
WARNING: CPU: 0 PID: 3629 at net/core/filter.c:4069 ____bpf_xdp_adjust_tail net/core/filter.c:4069 [inline]
WARNING: CPU: 0 PID: 3629 at net/core/filter.c:4069 bpf_xdp_adjust_tail+0x235/0x250 net/core/filter.c:4051
Modules linked in:
CPU: 0 PID: 3629 Comm: syz-executor410 Not tainted 6.1.18-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:____bpf_xdp_adjust_tail net/core/filter.c:4069 [inline]
RIP: 0010:bpf_xdp_adjust_tail+0x235/0x250 net/core/filter.c:4051
Code: ff ff 48 89 ef e8 2b ff 57 f9 e9 64 fe ff ff e8 01 9b 01 f9 c6 05 ba ec b5 05 01 48 c7 c7 c0 5b e1 8b 44 89 ee e8 6b e3 c9 f8 <0f> 0b 48 c7 c0 ea ff ff ff e9 24 ff ff ff 66 2e 0f 1f 84 00 00 00
RSP: 0018:ffffc90003c7f778 EFLAGS: 00010246
RAX: 84987534a0298b00 RBX: ffffc90003c7f940 RCX: ffff888021e4ba80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff8152ac2e R09: ffffed1017304f1c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90003c7f958
R13: 0000000000020000 R14: ffff88807020feef R15: 1ffff9200078ff29
FS:  00005555560d1300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020010000 CR3: 00000000727f7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bpf_prog_4add87e5301a4105+0x12/0x14
 __bpf_prog_run include/linux/filter.h:600 [inline]
 bpf_prog_run_xdp include/linux/filter.h:775 [inline]
 bpf_prog_run_generic_xdp+0x572/0x11c0 net/core/dev.c:4761
 netif_receive_generic_xdp net/core/dev.c:4847 [inline]
 do_xdp_generic+0x406/0x6d0 net/core/dev.c:4906
 tun_get_user+0x269f/0x4480 drivers/net/tun.c:1932
 tun_chr_write_iter+0x10c/0x1f0 drivers/net/tun.c:2036
 call_write_iter include/linux/fs.h:2205 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x7ae/0xba0 fs/read_write.c:584
 ksys_write+0x19c/0x2c0 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa3b2a8ca73
Code: 5d 41 5c 41 5d 41 5e e9 9b fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18
RSP: 002b:00007ffd49e8aba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007ffd49e8abd0 RCX: 00007fa3b2a8ca73
RDX: 000000000000fdef RSI: 0000000020000300 RDI: 00000000000000c8
RBP: 0000000000000003 R08: bb1414ac49e8abd7 R09: bb1414ac49e8abd7
R10: bb1414ac49e8abd7 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd49e8abc0 R14: 00007ffd49e8abb8 R15: 00007ffd49e8abb4
 </TASK>