[ 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 '10.128.0.243' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 66.171073][ T6855] mm ffff88808fbe4180 mmap ffff8880a78fc358 seqnum 0 task_size 140737488351232 [ 66.171073][ T6855] get_unmapped_area ffffffff8129b7b0 [ 66.171073][ T6855] mmap_base 140324014915584 mmap_legacy_base 47308780253184 highest_vm_end 140721338060800 [ 66.171073][ T6855] pgd ffff8880a831d000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 66.171073][ T6855] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.171073][ T6855] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.171073][ T6855] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 66.171073][ T6855] start_brk 222e000 brk 2251000 start_stack 7ffc3d4b5bf0 [ 66.171073][ T6855] arg_start 7ffc3d4b6ec3 arg_end 7ffc3d4b6edb env_start 7ffc3d4b6edb env_end 7ffc3d4b6fe0 [ 66.171073][ T6855] binfmt ffffffff89d6d5e0 flags cd core_state ffffc90005507c18 [ 66.171073][ T6855] ioctx_table 0000000000000000 [ 66.171073][ T6855] owner ffff88808dee6400 exe_file ffff88809778a540 [ 66.171641][ T6858] mm ffff88809e4460c0 mmap ffff8880a655cc60 seqnum 0 task_size 140737488351232 [ 66.171641][ T6858] get_unmapped_area ffffffff8129b7b0 [ 66.171641][ T6858] mmap_base 140324014915584 mmap_legacy_base 47308780253184 highest_vm_end 140721338060800 [ 66.171641][ T6858] pgd ffff888092e22000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 66.171641][ T6858] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.171641][ T6858] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.171641][ T6858] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 66.171641][ T6858] start_brk 222e000 brk 2251000 start_stack 7ffc3d4b5bf0 executing program [ 66.171641][ T6858] arg_start 7ffc3d4b6ec3 arg_end 7ffc3d4b6edb env_start 7ffc3d4b6edb env_end 7ffc3d4b6fe0 [ 66.171641][ T6858] binfmt ffffffff89d6d5e0 flags cd core_state ffffc90005547c18 [ 66.171641][ T6858] ioctx_table 0000000000000000 [ 66.171641][ T6858] owner ffff8880944763c0 exe_file ffff88809778a540 [ 66.260788][ T6856] mm ffff88809ef369c0 mmap ffff888097f52d68 seqnum 0 task_size 140737488351232 [ 66.260788][ T6856] get_unmapped_area ffffffff8129b7b0 [ 66.260788][ T6856] mmap_base 140324014915584 mmap_legacy_base 47308780253184 highest_vm_end 140721338060800 [ 66.260788][ T6856] pgd ffff88809f89d000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 66.260788][ T6856] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.260788][ T6856] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.260788][ T6856] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 66.260788][ T6856] start_brk 222e000 brk 2251000 start_stack 7ffc3d4b5bf0 [ 66.260788][ T6856] arg_start 7ffc3d4b6ec3 arg_end 7ffc3d4b6edb env_start 7ffc3d4b6edb env_end 7ffc3d4b6fe0 [ 66.260788][ T6856] binfmt ffffffff89d6d5e0 flags cd core_state ffffc90005517c18 [ 66.260788][ T6856] ioctx_table 0000000000000000 [ 66.260788][ T6856] owner ffff88809577e480 exe_file ffff88809778a540 [ 66.378288][ T6858] ------------[ cut here ]------------ [ 66.438038][ T6857] mm ffff88809ef37740 mmap ffff888097a71880 seqnum 0 task_size 140737488351232 [ 66.438038][ T6857] get_unmapped_area ffffffff8129b7b0 [ 66.438038][ T6857] mmap_base 140324014915584 mmap_legacy_base 47308780253184 highest_vm_end 140721338060800 [ 66.438038][ T6857] pgd ffff8880a873b000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 66.438038][ T6857] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.438038][ T6857] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.438038][ T6857] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 66.438038][ T6857] start_brk 222e000 brk 2251000 start_stack 7ffc3d4b5bf0 [ 66.438038][ T6857] arg_start 7ffc3d4b6ec3 arg_end 7ffc3d4b6edb env_start 7ffc3d4b6edb env_end 7ffc3d4b6fe0 [ 66.438038][ T6857] binfmt ffffffff89d6d5e0 flags cd core_state ffffc90005537c18 [ 66.438038][ T6857] ioctx_table 0000000000000000 [ 66.438038][ T6857] owner ffff88809e2c0440 exe_file ffff88809778a540 [ 66.438191][ T6857] ------------[ cut here ]------------ [ 66.438200][ T6857] kernel BUG at mm/khugepaged.c:469! [ 66.441461][ T6857] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 66.453959][ T6859] mm ffff88809ef37080 mmap ffff888097f52318 seqnum 0 task_size 140737488351232 [ 66.453959][ T6859] get_unmapped_area ffffffff8129b7b0 [ 66.453959][ T6859] mmap_base 140324014915584 mmap_legacy_base 47308780253184 highest_vm_end 140721338060800 [ 66.453959][ T6859] pgd ffff88809ee27000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 66.453959][ T6859] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.453959][ T6859] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.453959][ T6859] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 66.453959][ T6859] start_brk 222e000 brk 2251000 start_stack 7ffc3d4b5bf0 [ 66.453959][ T6859] arg_start 7ffc3d4b6ec3 arg_end 7ffc3d4b6edb env_start 7ffc3d4b6edb env_end 7ffc3d4b6fe0 [ 66.453959][ T6859] binfmt ffffffff89d6d5e0 flags cd core_state ffffc90005557c18 [ 66.453959][ T6859] ioctx_table 0000000000000000 [ 66.453959][ T6859] owner ffff8880949004c0 exe_file ffff88809778a540 [ 66.532516][ T6857] CPU: 1 PID: 6857 Comm: syz-executor227 Not tainted 5.9.0-rc1-next-20200817-syzkaller #0 [ 66.532523][ T6857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.532544][ T6857] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 66.532557][ T6857] Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00 [ 66.532563][ T6857] RSP: 0018:ffffc900054b7930 EFLAGS: 00010282 [ 66.532574][ T6857] RAX: 0000000000000365 RBX: 0000000000000003 RCX: 0000000000000000 [ 66.532594][ T6857] RDX: ffff88809a09a580 RSI: ffffffff815d9107 RDI: fffff52000a96ec5 [ 66.542555][ T6858] kernel BUG at mm/khugepaged.c:469! [ 66.543304][ T6857] RBP: ffff88809ef37740 R08: 0000000000000365 R09: ffff8880ae7318e7 [ 66.718387][ T6857] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888092cba160 [ 66.726333][ T6857] R13: ffff88809ef3779c R14: 0000000020000000 R15: ffffc900054b7a68 [ 66.734278][ T6857] FS: 00007f9fbb0ff700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 66.743179][ T6857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.749733][ T6857] CR2: 00007f16a4bb9000 CR3: 00000000a873b000 CR4: 00000000001506e0 [ 66.757680][ T6857] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.765625][ T6857] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.773576][ T6857] Call Trace: [ 66.776849][ T6857] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 66.782632][ T6857] handle_mm_fault+0x3684/0x4580 [ 66.787545][ T6857] ? apply_to_existing_page_range+0x40/0x40 [ 66.793410][ T6857] ? vmacache_update+0xce/0x140 [ 66.798236][ T6857] do_user_addr_fault+0x598/0xbf0 [ 66.803247][ T6857] ? trace_hardirqs_on_prepare+0x2b0/0x2e0 [ 66.809026][ T6857] exc_page_fault+0xa8/0x160 [ 66.813596][ T6857] asm_exc_page_fault+0x1e/0x30 [ 66.818421][ T6857] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 66.824720][ T6857] Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a [ 66.844309][ T6857] RSP: 0018:ffffc900054b7c78 EFLAGS: 00010206 [ 66.850367][ T6857] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 66.858311][ T6857] RDX: 0000000000000001 RSI: ffff8880a11e3000 RDI: 0000000020000000 [ 66.866258][ T6857] RBP: ffff8880a11e3000 R08: 322020205b3e353c R09: ffff8880a11e3030 [ 66.874235][ T6857] R10: ffffed101423c606 R11: 0000000000000000 R12: 0000000000000031 [ 66.882178][ T6857] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 66.890134][ T6857] _copy_to_user+0x11e/0x160 [ 66.894701][ T6857] syslog_print_all+0x34c/0x590 [ 66.899524][ T6857] ? console_trylock+0x90/0x90 [ 66.904270][ T6857] ? fault_around_bytes_set+0x90/0x90 [ 66.909628][ T6857] ? _raw_spin_unlock+0x24/0x40 [ 66.914470][ T6857] ? find_held_lock+0x2d/0x110 [ 66.919213][ T6857] do_syslog.part.0+0x3ff/0x8d0 [ 66.924043][ T6857] ? wake_up_klogd_work_func+0xf0/0xf0 [ 66.929503][ T6857] ? vmacache_update+0xce/0x140 [ 66.934356][ T6857] ? lock_is_held_type+0xbb/0xf0 [ 66.939265][ T6857] ? syscall_enter_from_user_mode+0x20/0x290 [ 66.945218][ T6857] ? bpf_lsm_syslog+0x5/0x10 [ 66.949799][ T6857] ? security_syslog+0x73/0x90 [ 66.954537][ T6857] __x64_sys_syslog+0x97/0xc0 [ 66.959192][ T6857] do_syscall_64+0x2d/0x70 [ 66.963596][ T6857] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.969460][ T6857] RIP: 0033:0x4467d9 [ 66.973343][ T6857] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.992929][ T6857] RSP: 002b:00007f9fbb0fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 67.001321][ T6857] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 67.009278][ T6857] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 67.017232][ T6857] RBP: 00000000006dbc20 R08: 00007f9fbb0ff700 R09: 0000000000000000 [ 67.025178][ T6857] R10: 00007f9fbb0ff700 R11: 0000000000000246 R12: 00000000006dbc2c [ 67.033123][ T6857] R13: 00007ffc3d4b59bf R14: 00007f9fbb0ff9c0 R15: 000000000000002d [ 67.041087][ T6857] Modules linked in: [ 67.045018][ T6858] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 67.051114][ T6858] CPU: 0 PID: 6858 Comm: syz-executor227 Tainted: G D 5.9.0-rc1-next-20200817-syzkaller #0 [ 67.062381][ T6858] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.068594][ T6856] ------------[ cut here ]------------ [ 67.072444][ T6858] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.072458][ T6858] Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00 [ 67.072465][ T6858] RSP: 0018:ffffc900054e7930 EFLAGS: 00010282 [ 67.072477][ T6858] RAX: 0000000000000365 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.072495][ T6858] RDX: ffff88808ee7e040 RSI: ffffffff815d9107 RDI: fffff52000a9cec5 [ 67.080002][ T6856] kernel BUG at mm/khugepaged.c:469! [ 67.083718][ T6858] RBP: ffff88809e4460c0 R08: 0000000000000365 R09: ffff8880ae6318e7 [ 67.083732][ T6858] R10: 0000000000000000 R11: 20656c69665f6578 R12: ffff888092cbab00 [ 67.083741][ T6858] R13: ffff88809e44611c R14: 0000000020000000 R15: ffffc900054e7a68 [ 67.083753][ T6858] FS: 00007f9fbb0ff700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 67.083761][ T6858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.083770][ T6858] CR2: 0000000020000000 CR3: 0000000092e22000 CR4: 00000000001506f0 [ 67.083787][ T6858] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.185755][ T6858] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.193699][ T6858] Call Trace: [ 67.196967][ T6858] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 67.202761][ T6858] handle_mm_fault+0x3684/0x4580 [ 67.207674][ T6858] ? apply_to_existing_page_range+0x40/0x40 [ 67.213541][ T6858] ? vmacache_update+0xce/0x140 [ 67.218368][ T6858] do_user_addr_fault+0x598/0xbf0 [ 67.223366][ T6858] ? trace_hardirqs_on_prepare+0x2b0/0x2e0 [ 67.229146][ T6858] exc_page_fault+0xa8/0x160 [ 67.233711][ T6858] asm_exc_page_fault+0x1e/0x30 [ 67.238547][ T6858] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 67.244846][ T6858] Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a [ 67.264433][ T6858] RSP: 0018:ffffc900054e7c78 EFLAGS: 00010206 [ 67.270471][ T6858] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 67.278414][ T6858] RDX: 0000000000000001 RSI: ffff8880a69a4800 RDI: 0000000020000000 [ 67.286367][ T6858] RBP: ffff8880a69a4800 R08: 322020205b3e353c R09: ffff8880a69a4830 [ 67.294310][ T6858] R10: ffffed1014d34906 R11: 0000000000000000 R12: 0000000000000031 [ 67.302253][ T6858] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 67.310220][ T6858] _copy_to_user+0x11e/0x160 [ 67.314784][ T6858] syslog_print_all+0x34c/0x590 [ 67.319608][ T6858] ? console_trylock+0x90/0x90 [ 67.324345][ T6858] ? fault_around_bytes_set+0x90/0x90 [ 67.329701][ T6858] ? _raw_spin_unlock+0x24/0x40 [ 67.334525][ T6858] ? find_held_lock+0x2d/0x110 [ 67.339270][ T6858] do_syslog.part.0+0x3ff/0x8d0 [ 67.344110][ T6858] ? wake_up_klogd_work_func+0xf0/0xf0 [ 67.349541][ T6858] ? vmacache_update+0xce/0x140 [ 67.354371][ T6858] ? lock_is_held_type+0xbb/0xf0 [ 67.359299][ T6858] ? syscall_enter_from_user_mode+0x20/0x290 [ 67.365251][ T6858] ? bpf_lsm_syslog+0x5/0x10 [ 67.369823][ T6858] ? security_syslog+0x73/0x90 [ 67.374560][ T6858] __x64_sys_syslog+0x97/0xc0 [ 67.379211][ T6858] do_syscall_64+0x2d/0x70 [ 67.383603][ T6858] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.389467][ T6858] RIP: 0033:0x4467d9 [ 67.393336][ T6858] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.412912][ T6858] RSP: 002b:00007f9fbb0fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 executing program [ 67.421302][ T6858] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 67.429247][ T6858] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 67.437199][ T6858] RBP: 00000000006dbc20 R08: 00007f9fbb0ff700 R09: 0000000000000000 [ 67.445142][ T6858] R10: 00007f9fbb0ff700 R11: 0000000000000246 R12: 00000000006dbc2c [ 67.453086][ T6858] R13: 00007ffc3d4b59bf R14: 00007f9fbb0ff9c0 R15: 000000000000002d [ 67.461042][ T6858] Modules linked in: [ 67.464974][ T6856] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 67.471141][ T6856] CPU: 1 PID: 6856 Comm: syz-executor227 Tainted: G D 5.9.0-rc1-next-20200817-syzkaller #0 [ 67.482432][ T6856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.492497][ T6856] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.498301][ T6856] Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00 [ 67.501686][ T6855] ------------[ cut here ]------------ [ 67.517898][ T6856] RSP: 0018:ffffc90005487930 EFLAGS: 00010282 [ 67.517911][ T6856] RAX: 0000000000000365 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.517921][ T6856] RDX: ffff88809577a540 RSI: ffffffff815d9107 RDI: fffff52000a90ec5 [ 67.517929][ T6856] RBP: ffff88809ef369c0 R08: 0000000000000365 R09: ffff8880ae7318e7 [ 67.517937][ T6856] R10: 0000000000000000 R11: 20656c69665f6578 R12: ffff888092cba0b0 [ 67.517946][ T6856] R13: ffff88809ef36a1c R14: 0000000020000000 R15: ffffc90005487a68 [ 67.517965][ T6856] FS: 00007f9fbb0ff700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 67.523642][ T6859] ------------[ cut here ]------------ [ 67.529462][ T6856] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.529471][ T6856] CR2: 00000000004b4e20 CR3: 000000009f89d000 CR4: 00000000001506e0 [ 67.529483][ T6856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.529491][ T6856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.529504][ T6856] Call Trace: [ 67.537554][ T6859] kernel BUG at mm/khugepaged.c:469! [ 67.545418][ T6856] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 67.545437][ T6856] handle_mm_fault+0x3684/0x4580 [ 67.545461][ T6856] ? apply_to_existing_page_range+0x40/0x40 [ 67.553513][ T6855] kernel BUG at mm/khugepaged.c:469! [ 67.561373][ T6856] ? vmacache_update+0xce/0x140 [ 67.561391][ T6856] do_user_addr_fault+0x598/0xbf0 [ 67.561408][ T6856] ? trace_hardirqs_on_prepare+0x2b0/0x2e0 [ 67.561430][ T6856] exc_page_fault+0xa8/0x160 [ 67.664606][ T6856] asm_exc_page_fault+0x1e/0x30 [ 67.669448][ T6856] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 67.675747][ T6856] Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a [ 67.695323][ T6856] RSP: 0018:ffffc90005487c78 EFLAGS: 00010206 [ 67.701363][ T6856] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 67.709308][ T6856] RDX: 0000000000000001 RSI: ffff88809397d000 RDI: 0000000020000000 [ 67.717265][ T6856] RBP: ffff88809397d000 R08: 322020205b3e353c R09: ffff88809397d030 [ 67.725208][ T6856] R10: ffffed101272fa06 R11: 0000000000000000 R12: 0000000000000031 [ 67.733165][ T6856] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 67.741124][ T6856] _copy_to_user+0x11e/0x160 [ 67.745701][ T6856] syslog_print_all+0x34c/0x590 [ 67.750526][ T6856] ? console_trylock+0x90/0x90 [ 67.755264][ T6856] ? fault_around_bytes_set+0x90/0x90 [ 67.760623][ T6856] ? _raw_spin_unlock+0x24/0x40 [ 67.765459][ T6856] ? find_held_lock+0x2d/0x110 [ 67.770210][ T6856] do_syslog.part.0+0x3ff/0x8d0 [ 67.775035][ T6856] ? wake_up_klogd_work_func+0xf0/0xf0 [ 67.780468][ T6856] ? vmacache_update+0xce/0x140 [ 67.785291][ T6856] ? lock_is_held_type+0xbb/0xf0 [ 67.790216][ T6856] ? syscall_enter_from_user_mode+0x20/0x290 [ 67.796166][ T6856] ? bpf_lsm_syslog+0x5/0x10 [ 67.800730][ T6856] ? security_syslog+0x73/0x90 [ 67.805465][ T6856] __x64_sys_syslog+0x97/0xc0 [ 67.810130][ T6856] do_syscall_64+0x2d/0x70 [ 67.814533][ T6856] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.820406][ T6856] RIP: 0033:0x4467d9 [ 67.824278][ T6856] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.843855][ T6856] RSP: 002b:00007f9fbb0fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 67.852239][ T6856] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 67.860197][ T6856] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 67.868142][ T6856] RBP: 00000000006dbc20 R08: 00007f9fbb0ff700 R09: 0000000000000000 [ 67.876089][ T6856] R10: 00007f9fbb0ff700 R11: 0000000000000246 R12: 00000000006dbc2c [ 67.884032][ T6856] R13: 00007ffc3d4b59bf R14: 00007f9fbb0ff9c0 R15: 000000000000002d [ 67.891989][ T6856] Modules linked in: [ 67.895929][ T6855] invalid opcode: 0000 [#4] PREEMPT SMP KASAN [ 67.902010][ T6855] CPU: 0 PID: 6855 Comm: syz-executor227 Tainted: G D 5.9.0-rc1-next-20200817-syzkaller #0 [ 67.913277][ T6855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.923353][ T6855] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.929159][ T6855] Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00 [ 67.933546][ T6857] ---[ end trace 8ed1e7849c65b9f6 ]--- [ 67.948758][ T6855] RSP: 0018:ffffc90005467930 EFLAGS: 00010282 [ 67.948772][ T6855] RAX: 0000000000000365 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.948781][ T6855] RDX: ffff88809402e500 RSI: ffffffff815d9107 RDI: fffff52000a8cec5 [ 67.948789][ T6855] RBP: ffff88808fbe4180 R08: 0000000000000365 R09: ffff8880ae6318e7 [ 67.948797][ T6855] R10: 0000000000000000 R11: 0000000000076858 R12: ffff888092cba000 [ 67.948815][ T6855] R13: ffff88808fbe41dc R14: 0000000020000000 R15: ffffc90005467a68 [ 67.954345][ T6857] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.960307][ T6855] FS: 00007f9fbb0ff700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 67.960316][ T6855] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.960325][ T6855] CR2: 00007f99f0040138 CR3: 00000000a831d000 CR4: 00000000001506f0 [ 67.960336][ T6855] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.960344][ T6855] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.960349][ T6855] Call Trace: [ 67.960377][ T6855] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 67.974301][ T6857] Code: e4 49 81 fe 20 c0 d2 89 74 2a e8 15 62 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 02 62 bb ff 48 89 ef e8 7a c6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 eb 61 bb ff 31 c9 ba 01 00 00 00 [ 67.976294][ T6855] handle_mm_fault+0x3684/0x4580 [ 67.985010][ T6857] RSP: 0018:ffffc900054b7930 EFLAGS: 00010282 [ 67.992210][ T6855] ? apply_to_existing_page_range+0x40/0x40 [ 67.992229][ T6855] ? vmacache_update+0xce/0x140 [ 67.992251][ T6855] do_user_addr_fault+0x598/0xbf0 [ 67.992266][ T6855] ? trace_hardirqs_on_prepare+0x2b0/0x2e0 [ 67.992287][ T6855] exc_page_fault+0xa8/0x160 [ 68.006033][ T6855] asm_exc_page_fault+0x1e/0x30 [ 68.006056][ T6855] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 68.015739][ T6857] RAX: 0000000000000365 RBX: 0000000000000003 RCX: 0000000000000000 [ 68.021521][ T6855] Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a [ 68.021530][ T6855] RSP: 0018:ffffc90005467c78 EFLAGS: 00010206 [ 68.021542][ T6855] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 68.021551][ T6855] RDX: 0000000000000001 RSI: ffff8880a11e3800 RDI: 0000000020000000 [ 68.021560][ T6855] RBP: ffff8880a11e3800 R08: 322020205b3e353c R09: ffff8880a11e3830 [ 68.021576][ T6855] R10: ffffed101423c706 R11: 0000000000000000 R12: 0000000000000031 [ 68.031895][ T6857] RDX: ffff88809a09a580 RSI: ffffffff815d9107 RDI: fffff52000a96ec5 [ 68.037486][ T6855] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 68.046235][ T6857] RBP: ffff88809ef37740 R08: 0000000000000365 R09: ffff8880ae7318e7 [ 68.048776][ T6855] _copy_to_user+0x11e/0x160 [ 68.048797][ T6855] syslog_print_all+0x34c/0x590 [ 68.055649][ T6857] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888092cba160 [ 68.074171][ T6855] ? console_trylock+0x90/0x90 [ 68.074187][ T6855] ? preempt_schedule_thunk+0x16/0x18 [ 68.074203][ T6855] ? _raw_spin_unlock+0x36/0x40 [ 68.074219][ T6855] ? find_held_lock+0x2d/0x110 [ 68.074244][ T6855] do_syslog.part.0+0x3ff/0x8d0 [ 68.081264][ T6857] R13: ffff88809ef3779c R14: 0000000020000000 R15: ffffc900054b7a68 [ 68.085210][ T6855] ? wake_up_klogd_work_func+0xf0/0xf0 [ 68.085232][ T6855] ? lock_is_held_type+0xbb/0xf0 [ 68.092905][ T6857] FS: 00007f9fbb0ff700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 68.095942][ T6855] ? lock_is_held_type+0xbb/0xf0 [ 68.095963][ T6855] ? syscall_enter_from_user_mode+0x20/0x290 [ 68.101986][ T6857] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.106743][ T6855] ? bpf_lsm_syslog+0x5/0x10 [ 68.106758][ T6855] ? security_syslog+0x73/0x90 [ 68.106777][ T6855] __x64_sys_syslog+0x97/0xc0 [ 68.112776][ T6857] CR2: 00007f16a4bcf000 CR3: 00000000a873b000 CR4: 00000000001506e0 [ 68.116173][ T6855] do_syscall_64+0x2d/0x70 [ 68.116197][ T6855] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 68.123538][ T6857] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.130613][ T6855] RIP: 0033:0x4467d9 [ 68.130629][ T6855] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 db 06 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.130636][ T6855] RSP: 002b:00007f9fbb0fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 68.130652][ T6855] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 68.130661][ T6855] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 68.130678][ T6855] RBP: 00000000006dbc20 R08: 00007f9fbb0ff700 R09: 0000000000000000 [ 68.152647][ T6857] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.156308][ T6855] R10: 00007f9fbb0ff700 R11: 0000000000000246 R12: 00000000006dbc2c [ 68.156320][ T6855] R13: 00007ffc3d4b59bf R14: 00007f9fbb0ff9c0 R15: 000000000000002d [ 68.156332][ T6855] Modules linked in: [ 68.165477][ T6857] Kernel panic - not syncing: Fatal exception [ 68.428997][ T6857] Kernel Offset: disabled [ 68.433313][ T6857] Rebooting in 86400 seconds..