[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.14' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.901164][ T6799] general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN [ 52.913004][ T6799] KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f] [ 52.921383][ T6799] CPU: 0 PID: 6799 Comm: syz-executor682 Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 52.931232][ T6799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.941266][ T6799] RIP: 0010:__btf_resolve_helper_id+0x149/0xb10 [ 52.947474][ T6799] Code: 80 3c 03 00 0f 85 dd 08 00 00 48 8b 05 70 46 0a 0b 48 8d 78 48 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 50 09 00 00 48 8b 04 24 31 ff [ 52.967042][ T6799] RSP: 0018:ffffc90001637378 EFLAGS: 00010206 [ 52.973072][ T6799] RAX: dffffc0000000000 RBX: 1ffffffff1926068 RCX: ffffffff816aa4b6 [ 52.981133][ T6799] RDX: 0000000000000009 RSI: ffffffff8188bcb1 RDI: 0000000000000048 [ 52.989071][ T6799] RBP: ffffffff818ba3d0 R08: ffffc900016373e4 R09: ffffc90001637670 [ 52.997010][ T6799] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.004949][ T6799] R13: 0000000000000000 R14: ffff888096648260 R15: ffff888096648000 [ 53.012890][ T6799] FS: 0000000000cc2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.021785][ T6799] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.028334][ T6799] CR2: 0000000020000282 CR3: 00000000a6dbe000 CR4: 00000000001506f0 [ 53.036276][ T6799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.044215][ T6799] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.052152][ T6799] Call Trace: [ 53.055410][ T6799] ? __might_fault+0xef/0x1d0 [ 53.060054][ T6799] ? find_held_lock+0x2d/0x110 [ 53.064788][ T6799] ? env_type_is_resolve_sink.isra.0+0x1b0/0x1b0 [ 53.071087][ T6799] ? bpf_verifier_vlog+0x1bd/0x2c0 [ 53.076165][ T6799] ? verbose+0x1de/0x260 [ 53.080375][ T6799] btf_resolve_helper_id+0x10c/0x1c0 [ 53.085635][ T6799] check_helper_call+0x1641/0x5650 [ 53.090718][ T6799] ? check_xadd+0x660/0x660 [ 53.095192][ T6799] ? func_id_name+0x80/0x80 [ 53.099664][ T6799] ? verbose_linfo+0x244/0x750 [ 53.104398][ T6799] do_check_common+0x7253/0xc2d0 [ 53.109308][ T6799] ? do_syscall_64+0x60/0xe0 [ 53.113868][ T6799] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.119911][ T6799] ? bpf_prog_calc_tag+0x4f5/0x720 [ 53.124991][ T6799] ? check_helper_call+0x5650/0x5650 [ 53.130246][ T6799] ? bpf_verifier_log_write+0x260/0x260 [ 53.135761][ T6799] ? check_preemption_disabled+0x50/0x130 [ 53.141449][ T6799] ? kfree+0x1cd/0x2c0 [ 53.145487][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.151434][ T6799] ? trace_hardirqs_on+0x5f/0x220 [ 53.156429][ T6799] ? lockdep_hardirqs_on+0x6a/0xe0 [ 53.161507][ T6799] bpf_check+0x857f/0xce51 [ 53.165895][ T6799] ? do_check_common+0xc2d0/0xc2d0 [ 53.170975][ T6799] ? ktime_get_with_offset+0x7a/0x1a0 [ 53.176314][ T6799] ? lock_downgrade+0x820/0x820 [ 53.181143][ T6799] ? read_seqcount_begin.constprop.0+0xd9/0x1f0 [ 53.187352][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.193299][ T6799] ? trace_hardirqs_on+0x5f/0x220 [ 53.198290][ T6799] ? lockdep_hardirqs_on+0x6a/0xe0 [ 53.203372][ T6799] ? name_to_dev_t+0x685/0xa23 [ 53.208102][ T6799] ? bpf_obj_name_cpy+0x144/0x1a0 [ 53.213094][ T6799] bpf_prog_load+0xdaf/0x1b50 [ 53.217744][ T6799] ? __bpf_prog_put.constprop.0+0x250/0x250 [ 53.223614][ T6799] ? __might_fault+0x11f/0x1d0 [ 53.228366][ T6799] ? lock_downgrade+0x820/0x820 [ 53.233189][ T6799] ? do_huge_pmd_anonymous_page+0x1b94/0x2230 [ 53.239232][ T6799] ? __might_fault+0x190/0x1d0 [ 53.243971][ T6799] __do_sys_bpf+0x1edf/0x4b10 [ 53.248617][ T6799] ? handle_mm_fault+0xad9/0x43f0 [ 53.253607][ T6799] ? bpf_link_get_from_fd+0x110/0x110 [ 53.258989][ T6799] ? do_user_addr_fault+0x5e6/0xd00 [ 53.264167][ T6799] ? __up_read+0x1a1/0x7b0 [ 53.268551][ T6799] ? _down_write_nest_lock+0x150/0x150 [ 53.273988][ T6799] ? lock_is_held_type+0xb0/0xe0 [ 53.278890][ T6799] ? do_syscall_64+0x1c/0xe0 [ 53.283452][ T6799] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 53.289399][ T6799] do_syscall_64+0x60/0xe0 [ 53.293788][ T6799] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.299652][ T6799] RIP: 0033:0x440379 [ 53.303509][ T6799] Code: Bad RIP value. [ 53.307544][ T6799] RSP: 002b:00007ffee37aa6d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 53.315922][ T6799] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379 [ 53.323863][ T6799] RDX: 0000000000000048 RSI: 0000000020000080 RDI: 0000000000000005 [ 53.331804][ T6799] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 53.339746][ T6799] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401c00 [ 53.347686][ T6799] R13: 0000000000401c90 R14: 0000000000000000 R15: 0000000000000000 [ 53.355627][ T6799] Modules linked in: [ 53.359946][ T6799] ---[ end trace d5a7c4fec6f343c9 ]--- [ 53.365403][ T6799] RIP: 0010:__btf_resolve_helper_id+0x149/0xb10 [ 53.371681][ T6799] Code: 80 3c 03 00 0f 85 dd 08 00 00 48 8b 05 70 46 0a 0b 48 8d 78 48 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 50 09 00 00 48 8b 04 24 31 ff [ 53.391310][ T6799] RSP: 0018:ffffc90001637378 EFLAGS: 00010206 [ 53.397352][ T6799] RAX: dffffc0000000000 RBX: 1ffffffff1926068 RCX: ffffffff816aa4b6 [ 53.405338][ T6799] RDX: 0000000000000009 RSI: ffffffff8188bcb1 RDI: 0000000000000048 [ 53.413318][ T6799] RBP: ffffffff818ba3d0 R08: ffffc900016373e4 R09: ffffc90001637670 [ 53.421290][ T6799] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.429265][ T6799] R13: 0000000000000000 R14: ffff888096648260 R15: ffff888096648000 [ 53.437234][ T6799] FS: 0000000000cc2880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 53.446156][ T6799] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.452750][ T6799] CR2: 0000000020000282 CR3: 00000000a6dbe000 CR4: 00000000001506f0 [ 53.460737][ T6799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.468691][ T6799] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.476694][ T6799] Kernel panic - not syncing: Fatal exception [ 53.483862][ T6799] Kernel Offset: disabled [ 53.488170][ T6799] Rebooting in 86400 seconds..