[ 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. [ 56.017547][ T6756] sshd (6756) used greatest stack depth: 23632 bytes left Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.216' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 78.811608][ T6875] mm ffff88809de97000 mmap ffff8880a898a778 seqnum 0 task_size 140737488351232 [ 78.811608][ T6875] get_unmapped_area ffffffff8129caa0 [ 78.811608][ T6875] mmap_base 140400739196928 mmap_legacy_base 47232055971840 highest_vm_end 140733556064256 [ 78.811608][ T6875] pgd ffff8880a1e82000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 78.811608][ T6875] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 78.811608][ T6875] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 78.811608][ T6875] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 78.811608][ T6875] start_brk d68000 brk d8b000 start_stack 7fff1599c4b0 [ 78.811608][ T6875] arg_start 7fff1599dec3 arg_end 7fff1599dedb env_start 7fff1599dedb env_end 7fff1599dfe0 [ 78.811608][ T6875] binfmt ffffffff89cdc240 flags cd core_state ffffc900056a7c18 [ 78.811608][ T6875] ioctx_table 0000000000000000 [ 78.811608][ T6875] owner ffff8880958a8500 exe_file ffff8880a5ec0a00 [ 78.811694][ T6878] mm ffff88808fe8aa80 mmap ffff888094854ca0 seqnum 0 task_size 140737488351232 [ 78.811694][ T6878] get_unmapped_area ffffffff8129caa0 [ 78.811694][ T6878] mmap_base 140400739196928 mmap_legacy_base 47232055971840 highest_vm_end 140733556064256 [ 78.811694][ T6878] pgd ffff8880a7374000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 78.811694][ T6878] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 78.811694][ T6878] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 78.811694][ T6878] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 78.811694][ T6878] start_brk d68000 brk d8b000 start_stack 7fff1599c4b0 [ 78.811694][ T6878] arg_start 7fff1599dec3 arg_end 7fff1599dedb env_start 7fff1599dedb env_end 7fff1599dfe0 [ 78.811694][ T6878] binfmt ffffffff89cdc240 flags cd core_state ffffc90005707c18 [ 78.811694][ T6878] ioctx_table 0000000000000000 [ 78.811694][ T6878] owner ffff888093902540 exe_file ffff8880a5ec0a00 [ 78.811904][ T6878] ------------[ cut here ]------------ [ 78.903126][ T6877] mm ffff88809ee51640 mmap ffff8880a1c6a318 seqnum 0 task_size 140737488351232 [ 78.903126][ T6877] get_unmapped_area ffffffff8129caa0 [ 78.903126][ T6877] mmap_base 140400739196928 mmap_legacy_base 47232055971840 highest_vm_end 140733556064256 [ 78.903126][ T6877] pgd ffff8880a5fd0000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 78.903126][ T6877] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 78.903126][ T6877] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 78.903126][ T6877] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 78.903126][ T6877] start_brk d68000 brk d8b000 start_stack 7fff1599c4b0 [ 78.903126][ T6877] arg_start 7fff1599dec3 arg_end 7fff1599dedb env_start 7fff1599dedb env_end 7fff1599dfe0 [ 78.903126][ T6877] binfmt ffffffff89cdc240 flags cd core_state ffffc900056f7c18 [ 78.903126][ T6877] ioctx_table 0000000000000000 [ 78.903126][ T6877] owner ffff88809abd84c0 exe_file ffff8880a5ec0a00 [ 78.905689][ T6877] ------------[ cut here ]------------ [ 78.997072][ T6878] kernel BUG at mm/khugepaged.c:469! [ 79.002600][ T6879] mm ffff88808fe8a3c0 mmap ffff8880a5c97738 seqnum 0 task_size 140737488351232 [ 79.002600][ T6879] get_unmapped_area ffffffff8129caa0 [ 79.002600][ T6879] mmap_base 140400739196928 mmap_legacy_base 47232055971840 highest_vm_end 140733556064256 [ 79.002600][ T6879] pgd ffff88809ede1000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 79.002600][ T6879] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 79.002600][ T6879] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 79.002600][ T6879] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 79.002600][ T6879] start_brk d68000 brk d8b000 start_stack 7fff1599c4b0 [ 79.002600][ T6879] arg_start 7fff1599dec3 arg_end 7fff1599dedb env_start 7fff1599dedb env_end 7fff1599dfe0 [ 79.002600][ T6879] binfmt ffffffff89cdc240 flags cd core_state ffffc90005717c18 [ 79.002600][ T6879] ioctx_table 0000000000000000 [ 79.002600][ T6879] owner ffff888093f525c0 exe_file ffff8880a5ec0a00 [ 79.168544][ T6878] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 79.194056][ T6876] mm ffff88808fe8b800 mmap ffff888094854250 seqnum 0 task_size 140737488351232 [ 79.194056][ T6876] get_unmapped_area ffffffff8129caa0 [ 79.194056][ T6876] mmap_base 140400739196928 mmap_legacy_base 47232055971840 highest_vm_end 140733556064256 [ 79.194056][ T6876] pgd ffff88809afa0000 mm_users 3 mm_count 1 pgtables_bytes 40960 map_count 14 [ 79.194056][ T6876] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 79.194056][ T6876] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 79.194056][ T6876] start_code 400000 end_code 4d918f start_data 6d9ea8 end_data 6dbb90 [ 79.194056][ T6876] start_brk d68000 brk d8b000 start_stack 7fff1599c4b0 [ 79.194056][ T6876] arg_start 7fff1599dec3 arg_end 7fff1599dedb env_start 7fff1599dedb env_end 7fff1599dfe0 [ 79.194056][ T6876] binfmt ffffffff89cdc240 flags cd core_state ffffc900056d7c18 [ 79.194056][ T6876] ioctx_table 0000000000000000 [ 79.194056][ T6876] owner ffff8880938ec580 exe_file ffff8880a5ec0a00 [ 79.199810][ T6878] CPU: 1 PID: 6878 Comm: syz-executor328 Not tainted 5.8.0-syzkaller #0 [ 79.199817][ T6878] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.199838][ T6878] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 79.199853][ T6878] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 79.199871][ T6878] RSP: 0018:ffffc90005687a70 EFLAGS: 00010282 [ 79.295134][ T6877] kernel BUG at mm/khugepaged.c:469! [ 79.302130][ T6878] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 79.302138][ T6878] RDX: ffff888093d6e0c0 RSI: ffffffff815dbc57 RDI: fffff52000ad0eed [ 79.302146][ T6878] RBP: ffff88808fe8aa80 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 79.302154][ T6878] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888092fd8000 [ 79.302171][ T6878] R13: ffff88808fe8aadc R14: 0000000020000000 R15: ffffc90005687ba8 [ 79.312525][ T6876] ------------[ cut here ]------------ [ 79.318574][ T6878] FS: 00007fb1982f9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 79.318583][ T6878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.318590][ T6878] CR2: 00007fff1599c300 CR3: 00000000a7374000 CR4: 00000000001506e0 [ 79.318601][ T6878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.318617][ T6878] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.438522][ T6878] Call Trace: [ 79.441822][ T6878] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 79.447681][ T6878] handle_mm_fault+0x369d/0x4590 [ 79.452631][ T6878] ? apply_to_existing_page_range+0x40/0x40 [ 79.458548][ T6878] ? vmacache_update+0xce/0x140 [ 79.464100][ T6878] do_user_addr_fault+0x598/0xbf0 [ 79.469231][ T6878] ? trace_hardirqs_on_prepare+0x290/0x2e0 [ 79.475027][ T6878] exc_page_fault+0xa8/0x160 [ 79.479709][ T6878] asm_exc_page_fault+0x1e/0x30 [ 79.484637][ T6878] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 79.491215][ T6878] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4 [ 79.511546][ T6878] RSP: 0018:ffffc90005687db0 EFLAGS: 00010206 [ 79.517604][ T6878] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 79.525572][ T6878] RDX: 0000000000000052 RSI: ffff8880a2714800 RDI: 0000000020000000 [ 79.533546][ T6878] RBP: ffff8880a2714800 R08: 0000000000000000 R09: ffff8880a2714851 [ 79.542384][ T6878] R10: ffffed10144e290a R11: 0000000000000000 R12: 0000000000000052 [ 79.550353][ T6878] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 79.558420][ T6878] _copy_to_user+0x11e/0x160 [ 79.563000][ T6878] do_syslog.part.0+0xf85/0x16c0 [ 79.567927][ T6878] ? wake_up_klogd_work_func+0xf0/0xf0 [ 79.573445][ T6878] ? lock_is_held_type+0xbb/0xf0 [ 79.578398][ T6878] ? syscall_enter_from_user_mode+0x20/0x290 [ 79.584376][ T6878] ? bpf_lsm_syslog+0x5/0x10 [ 79.588946][ T6878] ? security_syslog+0x73/0x90 [ 79.593719][ T6878] __x64_sys_syslog+0x97/0xc0 [ 79.598401][ T6878] do_syscall_64+0x2d/0x70 [ 79.602825][ T6878] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 79.608737][ T6878] RIP: 0033:0x4467d9 [ 79.612613][ T6878] 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 [ 79.632565][ T6878] RSP: 002b:00007fb1982f8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 79.640958][ T6878] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 79.648921][ T6878] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 79.656962][ T6878] RBP: 00000000006dbc20 R08: 00007fb1982f9700 R09: 0000000000000000 executing program [ 79.665013][ T6878] R10: 00007fb1982f9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 79.673074][ T6878] R13: 00007fff1599c27f R14: 00007fb1982f99c0 R15: 000000000000002d [ 79.682313][ T6878] Modules linked in: [ 79.686264][ T6877] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 79.692439][ T6877] CPU: 0 PID: 6877 Comm: syz-executor328 Tainted: G D 5.8.0-syzkaller #0 [ 79.702409][ T6877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.722016][ T6877] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 79.726777][ T6875] ------------[ cut here ]------------ [ 79.727869][ T6877] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 79.727878][ T6877] RSP: 0018:ffffc90005677a70 EFLAGS: 00010282 [ 79.727889][ T6877] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 79.727897][ T6877] RDX: ffff888093f36080 RSI: ffffffff815dbc57 RDI: fffff52000aceeed [ 79.727913][ T6877] RBP: ffff88809ee51640 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 79.735004][ T6875] kernel BUG at mm/khugepaged.c:469! [ 79.753074][ T6877] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888092fd8e70 [ 79.753084][ T6877] R13: ffff88809ee5169c R14: 0000000020000000 R15: ffffc90005677ba8 [ 79.753094][ T6877] FS: 00007fb1982f9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 79.753101][ T6877] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.753108][ T6877] CR2: 00007fb1982f8e78 CR3: 00000000a5fd0000 CR4: 00000000001506f0 [ 79.753119][ T6877] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.753126][ T6877] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.753130][ T6877] Call Trace: [ 79.753156][ T6877] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 79.753175][ T6877] handle_mm_fault+0x369d/0x4590 [ 79.753192][ T6877] ? apply_to_existing_page_range+0x40/0x40 [ 79.753207][ T6877] ? vmacache_update+0xce/0x140 [ 79.753223][ T6877] do_user_addr_fault+0x598/0xbf0 [ 79.753244][ T6877] ? trace_hardirqs_on_prepare+0x290/0x2e0 [ 79.880900][ T6877] exc_page_fault+0xa8/0x160 [ 79.885585][ T6877] asm_exc_page_fault+0x1e/0x30 [ 79.890528][ T6877] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 79.898342][ T6877] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4 [ 79.918324][ T6877] RSP: 0018:ffffc90005677db0 EFLAGS: 00010206 [ 79.924465][ T6877] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 79.932415][ T6877] RDX: 0000000000000052 RSI: ffff8880a2ee8000 RDI: 0000000020000000 [ 79.940376][ T6877] RBP: ffff8880a2ee8000 R08: 0000000000000000 R09: ffff8880a2ee8051 [ 79.948446][ T6877] R10: ffffed10145dd00a R11: 0000000000000000 R12: 0000000000000052 [ 79.956498][ T6877] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 79.964469][ T6877] _copy_to_user+0x11e/0x160 [ 79.969377][ T6877] do_syslog.part.0+0xf85/0x16c0 [ 79.974309][ T6877] ? wake_up_klogd_work_func+0xf0/0xf0 [ 79.980145][ T6877] ? lock_is_held_type+0xbb/0xf0 [ 79.985078][ T6877] ? syscall_enter_from_user_mode+0x20/0x290 [ 79.991839][ T6877] ? bpf_lsm_syslog+0x5/0x10 [ 79.996508][ T6877] ? security_syslog+0x73/0x90 [ 80.001263][ T6877] __x64_sys_syslog+0x97/0xc0 [ 80.006413][ T6877] do_syscall_64+0x2d/0x70 [ 80.010808][ T6877] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.016705][ T6877] RIP: 0033:0x4467d9 [ 80.020579][ T6877] 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 [ 80.040633][ T6877] RSP: 002b:00007fb1982f8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 80.049050][ T6877] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 80.057454][ T6877] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 80.065593][ T6877] RBP: 00000000006dbc20 R08: 00007fb1982f9700 R09: 0000000000000000 [ 80.073610][ T6877] R10: 00007fb1982f9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 80.081582][ T6877] R13: 00007fff1599c27f R14: 00007fb1982f99c0 R15: 000000000000002d [ 80.089621][ T6877] Modules linked in: [ 80.093558][ T6875] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 80.094669][ T6876] kernel BUG at mm/khugepaged.c:469! [ 80.099640][ T6875] CPU: 1 PID: 6875 Comm: syz-executor328 Tainted: G D 5.8.0-syzkaller #0 [ 80.099648][ T6875] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.099669][ T6875] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 80.099691][ T6875] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 80.150584][ T6875] RSP: 0018:ffffc90005657a70 EFLAGS: 00010282 [ 80.156636][ T6875] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 80.165112][ T6875] RDX: ffff88808e5ea000 RSI: ffffffff815dbc57 RDI: fffff52000acaeed [ 80.174998][ T6875] RBP: ffff88809de97000 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 80.183197][ T6875] R10: 0000000000000000 R11: 0000000000076e78 R12: ffff888092fd8f20 [ 80.192205][ T6875] R13: ffff88809de9705c R14: 0000000020000000 R15: ffffc90005657ba8 [ 80.200341][ T6875] FS: 00007fb1982f9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 80.209272][ T6875] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.215847][ T6875] CR2: 00007f46346e9000 CR3: 00000000a1e82000 CR4: 00000000001506e0 [ 80.223816][ T6875] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.231773][ T6875] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.239725][ T6875] Call Trace: [ 80.243013][ T6875] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 80.248811][ T6875] handle_mm_fault+0x369d/0x4590 [ 80.253877][ T6875] ? apply_to_existing_page_range+0x40/0x40 [ 80.260408][ T6875] ? vmacache_update+0xce/0x140 [ 80.265251][ T6875] do_user_addr_fault+0x598/0xbf0 [ 80.270429][ T6875] ? trace_hardirqs_on_prepare+0x290/0x2e0 [ 80.276222][ T6875] exc_page_fault+0xa8/0x160 [ 80.280795][ T6875] asm_exc_page_fault+0x1e/0x30 [ 80.285747][ T6875] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 80.292355][ T6875] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4 [ 80.312393][ T6875] RSP: 0018:ffffc90005657db0 EFLAGS: 00010206 [ 80.318897][ T6875] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 80.327030][ T6875] RDX: 0000000000000052 RSI: ffff8880a2ee8800 RDI: 0000000020000000 [ 80.335113][ T6875] RBP: ffff8880a2ee8800 R08: 0000000000000000 R09: ffff8880a2ee8851 [ 80.347431][ T6875] R10: ffffed10145dd10a R11: 0000000000000000 R12: 0000000000000052 [ 80.355480][ T6875] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 80.363528][ T6875] _copy_to_user+0x11e/0x160 [ 80.368130][ T6875] do_syslog.part.0+0xf85/0x16c0 [ 80.373760][ T6875] ? wake_up_klogd_work_func+0xf0/0xf0 [ 80.379995][ T6875] ? lock_is_held_type+0xbb/0xf0 [ 80.385357][ T6875] ? syscall_enter_from_user_mode+0x20/0x290 [ 80.391421][ T6875] ? bpf_lsm_syslog+0x5/0x10 [ 80.397505][ T6875] ? security_syslog+0x73/0x90 [ 80.402736][ T6875] __x64_sys_syslog+0x97/0xc0 [ 80.407856][ T6875] do_syscall_64+0x2d/0x70 [ 80.412355][ T6875] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.418381][ T6875] RIP: 0033:0x4467d9 [ 80.422275][ T6875] 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 [ 80.443619][ T6875] RSP: 002b:00007fb1982f8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 80.453895][ T6875] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 80.462142][ T6875] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 80.471028][ T6875] RBP: 00000000006dbc20 R08: 00007fb1982f9700 R09: 0000000000000000 [ 80.480817][ T6875] R10: 00007fb1982f9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 80.489332][ T6875] R13: 00007fff1599c27f R14: 00007fb1982f99c0 R15: 000000000000002d [ 80.497584][ T6875] Modules linked in: [ 80.501671][ T6876] invalid opcode: 0000 [#4] PREEMPT SMP KASAN [ 80.508004][ T6876] CPU: 0 PID: 6876 Comm: syz-executor328 Tainted: G D 5.8.0-syzkaller #0 [ 80.518095][ T6876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.530254][ T6876] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 80.536403][ T6876] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 80.538035][ T6878] ---[ end trace 1d974ccb4ce2a51b ]--- [ 80.556907][ T6876] RSP: 0018:ffffc90005667a70 EFLAGS: 00010282 [ 80.556920][ T6876] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 80.556927][ T6876] RDX: ffff888093cac040 RSI: ffffffff815dbc57 RDI: fffff52000acceed [ 80.556934][ T6876] RBP: ffff88808fe8b800 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 80.556942][ T6876] R10: 0000000000000000 R11: 0000000037383654 R12: ffff888092fd8d10 [ 80.556950][ T6876] R13: ffff88808fe8b85c R14: 0000000020000000 R15: ffffc90005667ba8 [ 80.556962][ T6876] FS: 00007fb1982f9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 executing program [ 80.556970][ T6876] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.556977][ T6876] CR2: 00007fb1982f8e78 CR3: 000000009afa0000 CR4: 00000000001506f0 [ 80.556988][ T6876] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.556996][ T6876] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.556999][ T6876] Call Trace: [ 80.557026][ T6876] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 80.557050][ T6876] handle_mm_fault+0x369d/0x4590 [ 80.562691][ T6878] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 80.568946][ T6876] ? apply_to_existing_page_range+0x40/0x40 [ 80.568963][ T6876] ? vmacache_update+0xce/0x140 [ 80.568979][ T6876] do_user_addr_fault+0x598/0xbf0 [ 80.568994][ T6876] ? trace_hardirqs_on_prepare+0x290/0x2e0 [ 80.569009][ T6876] exc_page_fault+0xa8/0x160 [ 80.569031][ T6876] asm_exc_page_fault+0x1e/0x30 [ 80.585153][ T6878] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 80.585940][ T6876] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 80.585953][ T6876] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4 [ 80.585961][ T6876] RSP: 0018:ffffc90005667db0 EFLAGS: 00010206 [ 80.585972][ T6876] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 80.585989][ T6876] RDX: 0000000000000052 RSI: ffff8880a2714000 RDI: 0000000020000000 [ 80.598632][ T6878] RSP: 0018:ffffc90005687a70 EFLAGS: 00010282 [ 80.603585][ T6876] RBP: ffff8880a2714000 R08: 0000000000000000 R09: ffff8880a2714051 [ 80.603594][ T6876] R10: ffffed10144e280a R11: 0000000030393143 R12: 0000000000000052 [ 80.603601][ T6876] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 80.603632][ T6876] _copy_to_user+0x11e/0x160 [ 80.603654][ T6876] do_syslog.part.0+0xf85/0x16c0 [ 80.614645][ T6878] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 80.620963][ T6876] ? wake_up_klogd_work_func+0xf0/0xf0 [ 80.620982][ T6876] ? lock_is_held_type+0xbb/0xf0 [ 80.620996][ T6876] ? syscall_enter_from_user_mode+0x20/0x290 [ 80.621017][ T6876] ? bpf_lsm_syslog+0x5/0x10 [ 80.629730][ T6878] RDX: ffff888093d6e0c0 RSI: ffffffff815dbc57 RDI: fffff52000ad0eed [ 80.636111][ T6876] ? security_syslog+0x73/0x90 [ 80.636128][ T6876] __x64_sys_syslog+0x97/0xc0 [ 80.636144][ T6876] do_syscall_64+0x2d/0x70 [ 80.636160][ T6876] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 80.636170][ T6876] RIP: 0033:0x4467d9 [ 80.636185][ T6876] 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 [ 80.636192][ T6876] RSP: 002b:00007fb1982f8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 80.636205][ T6876] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 80.636212][ T6876] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 80.636220][ T6876] RBP: 00000000006dbc20 R08: 00007fb1982f9700 R09: 0000000000000000 [ 80.636227][ T6876] R10: 00007fb1982f9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 80.636235][ T6876] R13: 00007fff1599c27f R14: 00007fb1982f99c0 R15: 000000000000002d [ 80.636247][ T6876] Modules linked in: [ 80.649344][ T6878] RBP: ffff88808fe8aa80 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 80.654139][ T6879] ------------[ cut here ]------------ [ 80.657800][ T6878] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888092fd8000 [ 80.662642][ T6879] kernel BUG at mm/khugepaged.c:469! [ 80.670851][ T6878] R13: ffff88808fe8aadc R14: 0000000020000000 R15: ffffc90005687ba8 [ 80.690500][ T6879] invalid opcode: 0000 [#5] PREEMPT SMP KASAN [ 80.697768][ T6878] FS: 00007fb1982f9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 80.700745][ T6879] CPU: 0 PID: 6879 Comm: syz-executor328 Tainted: G D 5.8.0-syzkaller #0 [ 80.700753][ T6879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.700774][ T6879] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 80.700793][ T6879] Code: e4 49 81 fe 00 b0 c9 89 74 2a e8 45 79 bb ff 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 32 79 bb ff 48 89 ef e8 1a d6 e9 ff <0f> 0b 41 bc f4 ff ff ff eb d6 e8 1b 79 bb ff 31 c9 ba 01 00 00 00 [ 80.712277][ T6878] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.713496][ T6879] RSP: 0018:ffffc90005697a70 EFLAGS: 00010282 [ 80.713508][ T6879] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 80.713517][ T6879] RDX: ffff888098b74100 RSI: ffffffff815dbc57 RDI: fffff52000ad2eed [ 80.713525][ T6879] RBP: ffff88808fe8a3c0 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 80.713533][ T6879] R10: 0000000000000000 R11: 0000000037383654 R12: ffff888092fd8dc0 [ 80.713549][ T6879] R13: ffff88808fe8a41c R14: 0000000020000000 R15: ffffc90005697ba8 [ 80.721477][ T6878] CR2: 00007fb1982f8e78 CR3: 00000000a7374000 CR4: 00000000001506e0 [ 80.739385][ T6879] FS: 00007fb1982f9700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 80.739394][ T6879] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.739401][ T6879] CR2: 00000000004b4e20 CR3: 000000009ede1000 CR4: 00000000001506f0 [ 80.739412][ T6879] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.739420][ T6879] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.739424][ T6879] Call Trace: [ 80.739449][ T6879] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 80.739467][ T6879] handle_mm_fault+0x369d/0x4590 [ 80.739484][ T6879] ? apply_to_existing_page_range+0x40/0x40 [ 80.739499][ T6879] ? vmacache_update+0xce/0x140 [ 80.739521][ T6879] do_user_addr_fault+0x598/0xbf0 [ 80.750552][ T6878] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.766229][ T6879] ? trace_hardirqs_on_prepare+0x290/0x2e0 [ 80.766246][ T6879] exc_page_fault+0xa8/0x160 [ 80.766262][ T6879] asm_exc_page_fault+0x1e/0x30 [ 80.766280][ T6879] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 80.766293][ T6879] Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 89 d1 f3 a4 [ 80.766300][ T6879] RSP: 0018:ffffc90005697db0 EFLAGS: 00010206 [ 80.766310][ T6879] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 80.766318][ T6879] RDX: 0000000000000052 RSI: ffff88809f422800 RDI: 0000000020000000 [ 80.766325][ T6879] RBP: ffff88809f422800 R08: 0000000000000000 R09: ffff88809f422851 [ 80.766333][ T6879] R10: ffffed1013e8450a R11: 0000000000000000 R12: 0000000000000052 [ 80.766341][ T6879] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 80.766364][ T6879] _copy_to_user+0x11e/0x160 [ 80.778547][ T6878] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.780797][ T6879] do_syslog.part.0+0xf85/0x16c0 [ 80.780815][ T6879] ? wake_up_klogd_work_func+0xf0/0xf0 [ 80.780831][ T6879] ? lock_is_held_type+0xbb/0xf0 [ 80.780853][ T6879] ? syscall_enter_from_user_mode+0x20/0x290 [ 80.790987][ T6878] Kernel panic - not syncing: Fatal exception [ 80.795004][ T6879] ? bpf_lsm_syslog+0x5/0x10 [ 81.351137][ T6879] ? security_syslog+0x73/0x90 [ 81.355913][ T6879] __x64_sys_syslog+0x97/0xc0 [ 81.361554][ T6879] do_syscall_64+0x2d/0x70 [ 81.365983][ T6879] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 81.371865][ T6879] RIP: 0033:0x4467d9 [ 81.375769][ T6879] 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 [ 81.395457][ T6879] RSP: 002b:00007fb1982f8db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 81.403882][ T6879] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004467d9 [ 81.411866][ T6879] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 81.424211][ T6879] RBP: 00000000006dbc20 R08: 00007fb1982f9700 R09: 0000000000000000 [ 81.433010][ T6879] R10: 00007fb1982f9700 R11: 0000000000000246 R12: 00000000006dbc2c [ 81.443627][ T6879] R13: 00007fff1599c27f R14: 00007fb1982f99c0 R15: 000000000000002d [ 81.451701][ T6879] Modules linked in: [ 81.456705][ T6878] Kernel Offset: disabled [ 81.461113][ T6878] Rebooting in 86400 seconds..