[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.6' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 58.962601][ T6871] mm ffff8880a8e97740 mmap ffff88809e7a4318 seqnum 0 task_size 140737488351232 [ 58.962601][ T6871] get_unmapped_area ffffffff8129caa0 [ 58.962601][ T6871] mmap_base 139676559286272 mmap_legacy_base 47956235882496 highest_vm_end 140729464487936 [ 58.962601][ T6871] pgd ffff8880a8bd7000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 58.962601][ T6871] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 58.962601][ T6871] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 executing program [ 58.962601][ T6871] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 58.962601][ T6871] start_brk d78000 brk d9b000 start_stack 7ffe21bc3d60 [ 58.962601][ T6871] arg_start 7ffe21bc4ec5 arg_end 7ffe21bc4edd env_start 7ffe21bc4edd env_end 7ffe21bc4fe0 [ 58.962601][ T6871] binfmt ffffffff89cdc6c0 flags cd core_state ffffc90001737c18 [ 58.962601][ T6871] ioctx_table 0000000000000000 [ 58.962601][ T6871] owner ffff888088f8a380 exe_file ffff88809138fcc0 [ 58.967571][ T6872] mm ffff8880a146f0c0 mmap ffff88809dbdf460 seqnum 0 task_size 140737488351232 [ 58.967571][ T6872] get_unmapped_area ffffffff8129caa0 [ 58.967571][ T6872] mmap_base 139676559286272 mmap_legacy_base 47956235882496 highest_vm_end 140729464487936 [ 58.967571][ T6872] pgd ffff8880a1544000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 58.967571][ T6872] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 58.967571][ T6872] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 58.967571][ T6872] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 58.967571][ T6872] start_brk d78000 brk d9b000 start_stack 7ffe21bc3d60 [ 58.967571][ T6872] arg_start 7ffe21bc4ec5 arg_end 7ffe21bc4edd env_start 7ffe21bc4edd env_end 7ffe21bc4fe0 [ 58.967571][ T6872] binfmt ffffffff89cdc6c0 flags cd core_state ffffc90001767c18 [ 58.967571][ T6872] ioctx_table 0000000000000000 [ 58.967571][ T6872] owner ffff88809369c400 exe_file ffff88809138fcc0 [ 59.053721][ T6871] ------------[ cut here ]------------ [ 59.145463][ T6873] mm ffff8880a146ea00 mmap ffff8880a0407e70 seqnum 0 task_size 140737488351232 [ 59.145463][ T6873] get_unmapped_area ffffffff8129caa0 executing program [ 59.145463][ T6873] mmap_base 139676559286272 mmap_legacy_base 47956235882496 highest_vm_end 140729464487936 [ 59.145463][ T6873] pgd ffff88809729d000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 59.145463][ T6873] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 59.145463][ T6873] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 59.145463][ T6873] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 59.145463][ T6873] start_brk d78000 brk d9b000 start_stack 7ffe21bc3d60 executing program [ 59.145463][ T6873] arg_start 7ffe21bc4ec5 arg_end 7ffe21bc4edd env_start 7ffe21bc4edd env_end 7ffe21bc4fe0 [ 59.145463][ T6873] binfmt ffffffff89cdc6c0 flags cd core_state ffffc90001797c18 [ 59.145463][ T6873] ioctx_table 0000000000000000 [ 59.145463][ T6873] owner ffff8880986bc480 exe_file ffff88809138fcc0 [ 59.180984][ T6871] kernel BUG at mm/khugepaged.c:469! [ 59.263417][ T6885] mm ffff88809a5cf040 mmap ffff888092556108 seqnum 0 task_size 140737488351232 [ 59.263417][ T6885] get_unmapped_area ffffffff8129caa0 [ 59.263417][ T6885] mmap_base 139676559286272 mmap_legacy_base 47956235882496 highest_vm_end 140729464487936 [ 59.263417][ T6885] pgd ffff88809d4a4000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 59.263417][ T6885] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 59.263417][ T6885] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 59.263417][ T6885] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 59.263417][ T6885] start_brk d78000 brk d9b000 start_stack 7ffe21bc3d60 [ 59.263417][ T6885] arg_start 7ffe21bc4ec5 arg_end 7ffe21bc4edd env_start 7ffe21bc4edd env_end 7ffe21bc4fe0 [ 59.263417][ T6885] binfmt ffffffff89cdc6c0 flags cd core_state ffffc900017c7c18 [ 59.263417][ T6885] ioctx_table 0000000000000000 [ 59.263417][ T6885] owner ffff888097542200 exe_file ffff88809138fcc0 [ 59.295940][ T6873] ------------[ cut here ]------------ [ 59.356427][ T6871] invalid opcode: 0000 [#1] PREEMPT SMP KASAN executing program [ 59.364328][ T6871] CPU: 1 PID: 6871 Comm: syz-executor011 Not tainted 5.9.0-rc1-syzkaller #0 [ 59.370903][ T6873] kernel BUG at mm/khugepaged.c:469! [ 59.372983][ T6871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.373003][ T6871] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 59.373021][ T6871] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 59.414312][ T6871] RSP: 0018:ffffc900016d7a70 EFLAGS: 00010282 [ 59.420349][ T6871] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 59.428303][ T6871] RDX: ffff888088fd6540 RSI: ffffffff815dafc7 RDI: fffff520002daeed [ 59.436257][ T6871] RBP: ffff8880a8e97740 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 59.444210][ T6871] R10: 0000000000000000 R11: 0000000000076a88 R12: ffff8880a6a69a50 [ 59.452152][ T6871] R13: ffff8880a8e9779c R14: 0000000020000000 R15: ffffc900016d7ba8 [ 59.460113][ T6871] FS: 00007f08fbb31700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.469032][ T6871] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.475619][ T6871] CR2: 00007ffe21bc3bb0 CR3: 00000000a8bd7000 CR4: 00000000001506e0 [ 59.483578][ T6871] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.491557][ T6871] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.499595][ T6871] Call Trace: [ 59.502868][ T6871] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 59.508650][ T6871] handle_mm_fault+0x369d/0x4590 [ 59.513567][ T6871] ? apply_to_existing_page_range+0x40/0x40 [ 59.519431][ T6871] ? vmacache_update+0xce/0x140 [ 59.524256][ T6871] do_user_addr_fault+0x598/0xbf0 [ 59.534820][ T6871] ? trace_hardirqs_off+0x40/0x210 [ 59.539907][ T6871] exc_page_fault+0xa8/0x160 [ 59.544470][ T6871] asm_exc_page_fault+0x1e/0x30 [ 59.549295][ T6871] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 59.555596][ T6871] 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 [ 59.575175][ T6871] RSP: 0018:ffffc900016d7db0 EFLAGS: 00010206 [ 59.581223][ T6871] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 59.589165][ T6871] RDX: 0000000000000001 RSI: ffff888092861800 RDI: 0000000020000000 [ 59.597122][ T6871] RBP: ffff888092861800 R08: 312020205b3e353c R09: ffff888092861830 [ 59.605074][ T6871] R10: ffffed101250c306 R11: 0000000000000000 R12: 0000000000000031 [ 59.613038][ T6871] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 59.621006][ T6871] _copy_to_user+0x11e/0x160 [ 59.625571][ T6871] do_syslog.part.0+0xf85/0x16c0 [ 59.630500][ T6871] ? wake_up_klogd_work_func+0xf0/0xf0 [ 59.635931][ T6871] ? lock_is_held_type+0xbb/0xf0 [ 59.640850][ T6871] ? syscall_enter_from_user_mode+0x20/0x290 [ 59.646797][ T6871] ? bpf_lsm_syslog+0x5/0x10 [ 59.651358][ T6871] ? security_syslog+0x73/0x90 [ 59.656092][ T6871] __x64_sys_syslog+0x97/0xc0 [ 59.660747][ T6871] do_syscall_64+0x2d/0x70 [ 59.665145][ T6871] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 59.671028][ T6871] RIP: 0033:0x4467d9 [ 59.674897][ T6871] 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 [ 59.694475][ T6871] RSP: 002b:00007f08fbb30db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 59.702858][ T6871] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 59.710802][ T6871] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 59.718755][ T6871] RBP: 00000000006dbc20 R08: 00007f08fbb31700 R09: 0000000000000000 [ 59.726709][ T6871] R10: 00007f08fbb31700 R11: 0000000000000246 R12: 00000000006dbc2c [ 59.734653][ T6871] R13: 00007ffe21bc3b2f R14: 00007f08fbb319c0 R15: 000000000000002d [ 59.742608][ T6871] Modules linked in: [ 59.746527][ T6873] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 59.761906][ T6873] CPU: 0 PID: 6873 Comm: syz-executor011 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 59.762970][ T6885] ------------[ cut here ]------------ [ 59.771982][ T6873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.772003][ T6873] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 59.772016][ T6873] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 59.772023][ T6873] RSP: 0018:ffffc900016f7a70 EFLAGS: 00010282 [ 59.772031][ T6873] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 59.772039][ T6873] RDX: ffff888088fc05c0 RSI: ffffffff815dafc7 RDI: fffff520002deeed [ 59.772059][ T6873] RBP: ffff8880a146ea00 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 59.777803][ T6885] kernel BUG at mm/khugepaged.c:469! [ 59.787524][ T6873] R10: 0000000000000000 R11: 0000000037383654 R12: ffff8880947a82c0 [ 59.787532][ T6873] R13: ffff8880a146ea5c R14: 0000000020000000 R15: ffffc900016f7ba8 [ 59.787543][ T6873] FS: 00007f08fbb31700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 59.787551][ T6873] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.787558][ T6873] CR2: 00007f0bbc92f008 CR3: 000000009729d000 CR4: 00000000001506f0 [ 59.787569][ T6873] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.787583][ T6873] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.903298][ T6873] Call Trace: [ 59.906572][ T6873] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 59.912463][ T6873] handle_mm_fault+0x369d/0x4590 [ 59.917379][ T6873] ? apply_to_existing_page_range+0x40/0x40 [ 59.923245][ T6873] ? vmacache_update+0xce/0x140 [ 59.928067][ T6873] do_user_addr_fault+0x598/0xbf0 [ 59.933077][ T6873] ? trace_hardirqs_off+0x40/0x210 [ 59.938159][ T6873] exc_page_fault+0xa8/0x160 [ 59.942722][ T6873] asm_exc_page_fault+0x1e/0x30 [ 59.947563][ T6873] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 59.953871][ T6873] 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 [ 59.973453][ T6873] RSP: 0018:ffffc900016f7db0 EFLAGS: 00010206 [ 59.979493][ T6873] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 59.987436][ T6873] RDX: 0000000000000001 RSI: ffff888092861000 RDI: 0000000020000000 [ 59.995391][ T6873] RBP: ffff888092861000 R08: 312020205b3e353c R09: ffff888092861030 [ 60.003375][ T6873] R10: ffffed101250c206 R11: 0000000000000000 R12: 0000000000000031 [ 60.011321][ T6873] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 60.019277][ T6873] _copy_to_user+0x11e/0x160 [ 60.023842][ T6873] do_syslog.part.0+0xf85/0x16c0 [ 60.028752][ T6873] ? wake_up_klogd_work_func+0xf0/0xf0 [ 60.034205][ T6873] ? lock_is_held_type+0xbb/0xf0 [ 60.039115][ T6873] ? syscall_enter_from_user_mode+0x20/0x290 [ 60.045069][ T6873] ? bpf_lsm_syslog+0x5/0x10 [ 60.049630][ T6873] ? security_syslog+0x73/0x90 [ 60.054364][ T6873] __x64_sys_syslog+0x97/0xc0 [ 60.059014][ T6873] do_syscall_64+0x2d/0x70 [ 60.063402][ T6873] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.069264][ T6873] RIP: 0033:0x4467d9 [ 60.073132][ T6873] 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 [ 60.093593][ T6873] RSP: 002b:00007f08fbb30db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 60.102009][ T6873] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 60.109958][ T6873] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 executing program [ 60.117910][ T6873] RBP: 00000000006dbc20 R08: 00007f08fbb31700 R09: 0000000000000000 [ 60.125852][ T6873] R10: 00007f08fbb31700 R11: 0000000000000246 R12: 00000000006dbc2c [ 60.133804][ T6873] R13: 00007ffe21bc3b2f R14: 00007f08fbb319c0 R15: 000000000000002d [ 60.141757][ T6873] Modules linked in: [ 60.145689][ T6885] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 60.151763][ T6885] CPU: 1 PID: 6885 Comm: syz-executor011 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 60.154569][ T6872] ------------[ cut here ]------------ [ 60.161807][ T6885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.161827][ T6885] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 60.161839][ T6885] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 60.161845][ T6885] RSP: 0018:ffffc90001757a70 EFLAGS: 00010282 [ 60.161854][ T6885] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 60.161862][ T6885] RDX: ffff8880931262c0 RSI: ffffffff815dafc7 RDI: fffff520002eaeed [ 60.161869][ T6885] RBP: ffff88809a5cf040 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 60.161876][ T6885] R10: 0000000000000000 R11: 0000000038383654 R12: ffff8880a6a699a0 [ 60.161885][ T6885] R13: ffff88809a5cf09c R14: 0000000020000000 R15: ffffc90001757ba8 [ 60.161896][ T6885] FS: 00007f08fbb31700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 60.161905][ T6885] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.161913][ T6885] CR2: 0000000020000000 CR3: 000000009d4a4000 CR4: 00000000001506e0 [ 60.161924][ T6885] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.161932][ T6885] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.161935][ T6885] Call Trace: [ 60.161952][ T6885] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 60.161970][ T6885] handle_mm_fault+0x369d/0x4590 [ 60.161986][ T6885] ? apply_to_existing_page_range+0x40/0x40 [ 60.162003][ T6885] ? vmacache_update+0xce/0x140 [ 60.191043][ T6872] kernel BUG at mm/khugepaged.c:469! [ 60.191289][ T6885] do_user_addr_fault+0x598/0xbf0 [ 60.330853][ T6885] ? trace_hardirqs_off+0x40/0x210 [ 60.335934][ T6885] exc_page_fault+0xa8/0x160 [ 60.340496][ T6885] asm_exc_page_fault+0x1e/0x30 [ 60.345333][ T6885] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 60.351629][ T6885] 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 [ 60.371204][ T6885] RSP: 0018:ffffc90001757db0 EFLAGS: 00010203 [ 60.377237][ T6885] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000007 [ 60.385177][ T6885] RDX: 0000000000000005 RSI: ffff88809eb0d800 RDI: 0000000020000000 [ 60.393119][ T6885] RBP: ffff88809eb0d800 R08: 352020205b3e323c R09: ffff88809eb0d83c [ 60.401060][ T6885] R10: ffffed1013d61b07 R11: 0000000000000000 R12: 000000000000003d [ 60.409016][ T6885] R13: 000000002000003d R14: 00007ffffffff000 R15: 0000000000000000 [ 60.416984][ T6885] _copy_to_user+0x11e/0x160 [ 60.421545][ T6885] do_syslog.part.0+0xf85/0x16c0 [ 60.426472][ T6885] ? wake_up_klogd_work_func+0xf0/0xf0 [ 60.431908][ T6885] ? lock_is_held_type+0xbb/0xf0 [ 60.436814][ T6885] ? syscall_enter_from_user_mode+0x20/0x290 [ 60.442764][ T6885] ? bpf_lsm_syslog+0x5/0x10 [ 60.447348][ T6885] ? security_syslog+0x73/0x90 [ 60.452082][ T6885] __x64_sys_syslog+0x97/0xc0 [ 60.456743][ T6885] do_syscall_64+0x2d/0x70 [ 60.461146][ T6885] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.467010][ T6885] RIP: 0033:0x4467d9 [ 60.470878][ T6885] 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 [ 60.490461][ T6885] RSP: 002b:00007f08fbb30db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 60.498847][ T6885] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 60.506788][ T6885] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 60.514740][ T6885] RBP: 00000000006dbc20 R08: 00007f08fbb31700 R09: 0000000000000000 [ 60.522682][ T6885] R10: 00007f08fbb31700 R11: 0000000000000246 R12: 00000000006dbc2c [ 60.530643][ T6885] R13: 00007ffe21bc3b2f R14: 00007f08fbb319c0 R15: 000000000000002d [ 60.538642][ T6885] Modules linked in: [ 60.542578][ T6872] invalid opcode: 0000 [#4] PREEMPT SMP KASAN [ 60.544353][ T6871] ---[ end trace 44b202f01e0a7ac8 ]--- [ 60.548649][ T6872] CPU: 0 PID: 6872 Comm: syz-executor011 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 60.548656][ T6872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.548675][ T6872] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 60.548687][ T6872] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 60.548694][ T6872] RSP: 0018:ffffc900016e7a70 EFLAGS: 00010282 [ 60.554235][ T6871] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 60.564183][ T6872] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 60.564190][ T6872] RDX: ffff888088fd8580 RSI: ffffffff815dafc7 RDI: fffff520002dceed [ 60.564198][ T6872] RBP: ffff8880a146f0c0 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 60.564206][ T6872] R10: 0000000000000000 R11: 0000000037383654 R12: ffff8880947a8370 [ 60.564214][ T6872] R13: ffff8880a146f11c R14: 0000000020000000 R15: ffffc900016e7ba8 [ 60.564224][ T6872] FS: 00007f08fbb31700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 60.564232][ T6872] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.564239][ T6872] CR2: 00007f0bbc939000 CR3: 00000000a1544000 CR4: 00000000001506f0 [ 60.564249][ T6872] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.564257][ T6872] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.564267][ T6872] Call Trace: [ 60.574682][ T6871] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 60.580101][ T6872] do_huge_pmd_anonymous_page+0xaa1/0x2230 executing program executing program [ 60.580120][ T6872] handle_mm_fault+0x369d/0x4590 [ 60.580137][ T6872] ? apply_to_existing_page_range+0x40/0x40 [ 60.580152][ T6872] ? vmacache_update+0xce/0x140 [ 60.580168][ T6872] do_user_addr_fault+0x598/0xbf0 [ 60.580187][ T6872] ? trace_hardirqs_off+0x40/0x210 [ 60.600107][ T6871] RSP: 0018:ffffc900016d7a70 EFLAGS: 00010282 [ 60.605826][ T6872] exc_page_fault+0xa8/0x160 [ 60.605841][ T6872] asm_exc_page_fault+0x1e/0x30 executing program [ 60.605858][ T6872] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 60.605876][ T6872] 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 [ 60.611919][ T6871] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 60.619610][ T6872] RSP: 0018:ffffc900016e7db0 EFLAGS: 00010206 executing program executing program [ 60.619620][ T6872] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000006 [ 60.619629][ T6872] RDX: 0000000000000001 RSI: ffff8880a15dc800 RDI: 0000000020000000 [ 60.619637][ T6872] RBP: ffff8880a15dc800 R08: 312020205b3e353c R09: ffff8880a15dc830 [ 60.619645][ T6872] R10: ffffed10142bb906 R11: 0000000000000000 R12: 0000000000000031 [ 60.619652][ T6872] R13: 0000000020000031 R14: 00007ffffffff000 R15: 0000000000000000 [ 60.619673][ T6872] _copy_to_user+0x11e/0x160 [ 60.619695][ T6872] do_syslog.part.0+0xf85/0x16c0 [ 60.627904][ T6871] RDX: ffff888088fd6540 RSI: ffffffff815dafc7 RDI: fffff520002daeed [ 60.635603][ T6872] ? wake_up_klogd_work_func+0xf0/0xf0 [ 60.635620][ T6872] ? lock_is_held_type+0xbb/0xf0 [ 60.635634][ T6872] ? syscall_enter_from_user_mode+0x20/0x290 [ 60.635651][ T6872] ? bpf_lsm_syslog+0x5/0x10 [ 60.643838][ T6871] RBP: ffff8880a8e97740 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 60.651549][ T6872] ? security_syslog+0x73/0x90 [ 60.651563][ T6872] __x64_sys_syslog+0x97/0xc0 [ 60.651577][ T6872] do_syscall_64+0x2d/0x70 [ 60.651589][ T6872] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 60.651599][ T6872] RIP: 0033:0x4467d9 [ 60.651616][ T6872] 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 [ 60.660782][ T6871] R10: 0000000000000000 R11: 0000000000076a88 R12: ffff8880a6a69a50 [ 60.667101][ T6872] RSP: 002b:00007f08fbb30db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 60.667114][ T6872] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 60.667121][ T6872] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 60.667129][ T6872] RBP: 00000000006dbc20 R08: 00007f08fbb31700 R09: 0000000000000000 [ 60.667137][ T6872] R10: 00007f08fbb31700 R11: 0000000000000246 R12: 00000000006dbc2c [ 60.667150][ T6872] R13: 00007ffe21bc3b2f R14: 00007f08fbb319c0 R15: 000000000000002d [ 60.675329][ T6871] R13: ffff8880a8e9779c R14: 0000000020000000 R15: ffffc900016d7ba8 [ 60.683046][ T6872] Modules linked in: [ 60.724315][ T6872] ---[ end trace 44b202f01e0a7ac9 ]--- [ 60.725400][ T6871] FS: 00007f08fbb31700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 60.733039][ T6872] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 60.738144][ T6871] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.745245][ T6872] Code: e4 49 81 fe c0 b3 c9 89 74 2a e8 c5 75 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 b2 75 bb ff 48 89 ef e8 ea d5 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 9b 75 bb ff 31 c9 ba 01 00 00 00 [ 60.761701][ T6871] CR2: 0000000020000000 CR3: 00000000a8bd7000 CR4: 00000000001506e0 [ 60.784449][ T6872] RSP: 0018:ffffc900016d7a70 EFLAGS: 00010282 [ 60.811185][ T6871] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.820683][ T6872] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 60.830514][ T6871] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.834172][ T6872] RDX: ffff888088fd6540 RSI: ffffffff815dafc7 RDI: fffff520002daeed [ 60.873985][ T6871] Kernel panic - not syncing: Fatal exception [ 60.883231][ T6872] RBP: ffff8880a8e97740 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 60.887518][ T6871] Kernel Offset: disabled [ 61.150269][ T6871] Rebooting in 86400 seconds..