[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 69.344793][ T8402] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 69.356514][ T8402] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 69.364911][ T8402] CPU: 0 PID: 8402 Comm: syz-executor231 Not tainted 5.11.0-syzkaller #0 [ 69.373328][ T8402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.383459][ T8402] RIP: 0010:btf_type_id_size+0x40e/0x960 [ 69.389467][ T8402] Code: 48 c1 e9 03 80 3c 11 00 0f 85 17 05 00 00 49 8b 47 10 44 29 f3 48 8d 1c 98 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec [ 69.409133][ T8402] RSP: 0018:ffffc9000155fd18 EFLAGS: 00010203 [ 69.415195][ T8402] RAX: dffffc0000000000 RBX: 0000000000000014 RCX: 1ffff11002543d02 [ 69.423243][ T8402] RDX: 0000000000000002 RSI: ffffffff818a8483 RDI: ffff888012a1e810 [ 69.431208][ T8402] RBP: ffff888012a1e800 R08: 0000000000000005 R09: ffffffff818a82da [ 69.439180][ T8402] R10: ffffffff818a841e R11: 000000000000000a R12: 0000000000000000 [ 69.447137][ T8402] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888012a1e800 [ 69.455095][ T8402] FS: 0000000001fd7300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.464012][ T8402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.470612][ T8402] CR2: 00000000004ae0f0 CR3: 0000000011efb000 CR4: 00000000001506f0 [ 69.478571][ T8402] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.486560][ T8402] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.494628][ T8402] Call Trace: [ 69.497894][ T8402] __do_sys_bpf+0x4000/0x4f00 [ 69.502566][ T8402] ? lock_is_held_type+0xd5/0x130 [ 69.507610][ T8402] ? bpf_link_get_from_fd+0x110/0x110 [ 69.512989][ T8402] ? __up_read+0x1a1/0x7b0 [ 69.517405][ T8402] ? _down_write_nest_lock+0x150/0x150 [ 69.522854][ T8402] ? syscall_enter_from_user_mode+0x1d/0x50 [ 69.528733][ T8402] do_syscall_64+0x2d/0x70 [ 69.533154][ T8402] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 69.539764][ T8402] RIP: 0033:0x43ff09 [ 69.543799][ T8402] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 69.563578][ T8402] RSP: 002b:00007ffd896e48f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 69.572001][ T8402] RAX: ffffffffffffffda RBX: 0000000000010e0e RCX: 000000000043ff09 [ 69.579964][ T8402] RDX: 0000000000000040 RSI: 0000000020000000 RDI: 0000000000000000 [ 69.587925][ T8402] RBP: 0000000000000000 R08: 00007ffd896e4a98 R09: 00007ffd896e4a98 [ 69.595895][ T8402] R10: 00007ffd896e4a98 R11: 0000000000000246 R12: 00007ffd896e490c [ 69.603910][ T8402] R13: 431bde82d7b634db R14: 00000000004ae018 R15: 0000000000400488 [ 69.611915][ T8402] Modules linked in: [ 69.616274][ T8402] ---[ end trace 31db278c2fee9265 ]--- [ 69.621818][ T8402] RIP: 0010:btf_type_id_size+0x40e/0x960 [ 69.627495][ T8402] Code: 48 c1 e9 03 80 3c 11 00 0f 85 17 05 00 00 49 8b 47 10 44 29 f3 48 8d 1c 98 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec [ 69.647371][ T8402] RSP: 0018:ffffc9000155fd18 EFLAGS: 00010203 [ 69.653501][ T8402] RAX: dffffc0000000000 RBX: 0000000000000014 RCX: 1ffff11002543d02 [ 69.661661][ T8402] RDX: 0000000000000002 RSI: ffffffff818a8483 RDI: ffff888012a1e810 [ 69.669748][ T8402] RBP: ffff888012a1e800 R08: 0000000000000005 R09: ffffffff818a82da [ 69.677809][ T8402] R10: ffffffff818a841e R11: 000000000000000a R12: 0000000000000000 [ 69.686018][ T8402] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888012a1e800 [ 69.694104][ T8402] FS: 0000000001fd7300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 69.703114][ T8402] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.709717][ T8402] CR2: 00000000004ae0f0 CR3: 0000000011efb000 CR4: 00000000001506f0 [ 69.717718][ T8402] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.725756][ T8402] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.733818][ T8402] Kernel panic - not syncing: Fatal exception [ 69.740305][ T8402] Kernel Offset: disabled [ 69.744634][ T8402] Rebooting in 86400 seconds..