[ OK ] Started Getty on tty5. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 60.997355][ T6853] mm ffff8880976ca240 mmap ffff8880a6b93da8 seqnum 0 task_size 4294959104 [ 60.997355][ T6853] get_unmapped_area ffffffff8129caa0 [ 60.997355][ T6853] mmap_base 140692012429312 mmap_legacy_base 46940782739456 highest_vm_end 4287717376 [ 60.997355][ T6853] pgd ffff8880a9333000 mm_users 3 mm_count 1 pgtables_bytes 28672 map_count 14 [ 60.997355][ T6853] hiwater_rss 9 hiwater_vm 1102 total_vm 1144 locked_vm 0 [ 60.997355][ T6853] pinned_vm 0 data_vm 1068 exec_vm b3 stack_vm 21 [ 60.997355][ T6853] start_code 8048000 end_code 80f8c0d start_data 80f9f54 end_data 80fafa0 [ 60.997355][ T6853] start_brk 9e3a000 brk 9e5c000 start_stack ff915ca0 [ 60.997355][ T6853] arg_start ff915ec3 arg_end ff915edb env_start ff915edb env_end ff915fe0 [ 60.997355][ T6853] binfmt ffffffff89cdcb80 flags cd core_state ffffc900054d7c18 [ 60.997355][ T6853] ioctx_table 0000000000000000 [ 60.997355][ T6853] owner ffff8880871c64c0 exe_file ffff88809e7b8340 [ 60.998014][ T6854] mm ffff8880a7fcb700 mmap ffff88809320dd68 seqnum 0 task_size 4294959104 [ 60.998014][ T6854] get_unmapped_area ffffffff8129caa0 [ 60.998014][ T6854] mmap_base 140692012429312 mmap_legacy_base 46940782739456 highest_vm_end 4287717376 [ 60.998014][ T6854] pgd ffff8880a7a75000 mm_users 3 mm_count 1 pgtables_bytes 28672 map_count 14 [ 60.998014][ T6854] hiwater_rss 9 hiwater_vm 1102 total_vm 1144 locked_vm 0 [ 60.998014][ T6854] pinned_vm 0 data_vm 1068 exec_vm b3 stack_vm 21 [ 60.998014][ T6854] start_code 8048000 end_code 80f8c0d start_data 80f9f54 end_data 80fafa0 [ 60.998014][ T6854] start_brk 9e3a000 brk 9e5c000 start_stack ff915ca0 executing program [ 60.998014][ T6854] arg_start ff915ec3 arg_end ff915edb env_start ff915edb env_end ff915fe0 [ 60.998014][ T6854] binfmt ffffffff89cdcb80 flags cd core_state ffffc900054e7c18 [ 60.998014][ T6854] ioctx_table 0000000000000000 [ 60.998014][ T6854] owner ffff8880871a0540 exe_file ffff88809e7b8340 [ 61.086104][ T6853] ------------[ cut here ]------------ [ 61.184011][ T6853] kernel BUG at mm/khugepaged.c:469! [ 61.201928][ T6856] mm ffff88808ed3d880 mmap ffff88808ec2c948 seqnum 0 task_size 4294959104 [ 61.201928][ T6856] get_unmapped_area ffffffff8129caa0 [ 61.201928][ T6856] mmap_base 140692012429312 mmap_legacy_base 46940782739456 highest_vm_end 4287717376 [ 61.201928][ T6856] pgd ffff88808ffd9000 mm_users 3 mm_count 1 pgtables_bytes 28672 map_count 14 [ 61.201928][ T6856] hiwater_rss 9 hiwater_vm 1102 total_vm 1144 locked_vm 0 [ 61.201928][ T6856] pinned_vm 0 data_vm 1068 exec_vm b3 stack_vm 21 [ 61.201928][ T6856] start_code 8048000 end_code 80f8c0d start_data 80f9f54 end_data 80fafa0 [ 61.201928][ T6856] start_brk 9e3a000 brk 9e5c000 start_stack ff915ca0 [ 61.201928][ T6856] arg_start ff915ec3 arg_end ff915edb env_start ff915edb env_end ff915fe0 [ 61.201928][ T6856] binfmt ffffffff89cdcb80 flags cd core_state ffffc9000552fc18 [ 61.201928][ T6856] ioctx_table 0000000000000000 [ 61.201928][ T6856] owner ffff8880871cc500 exe_file ffff88809e7b8340 [ 61.202133][ T6853] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 61.208669][ T6855] mm ffff88809fb0d6c0 mmap ffff8880a6b93880 seqnum 0 task_size 4294959104 [ 61.208669][ T6855] get_unmapped_area ffffffff8129caa0 [ 61.208669][ T6855] mmap_base 140692012429312 mmap_legacy_base 46940782739456 highest_vm_end 4287717376 [ 61.208669][ T6855] pgd ffff88809f17e000 mm_users 3 mm_count 1 pgtables_bytes 28672 map_count 14 [ 61.208669][ T6855] hiwater_rss 9 hiwater_vm 1102 total_vm 1144 locked_vm 0 [ 61.208669][ T6855] pinned_vm 0 data_vm 1068 exec_vm b3 stack_vm 21 [ 61.208669][ T6855] start_code 8048000 end_code 80f8c0d start_data 80f9f54 end_data 80fafa0 [ 61.208669][ T6855] start_brk 9e3a000 brk 9e5c000 start_stack ff915ca0 [ 61.208669][ T6855] arg_start ff915ec3 arg_end ff915edb env_start ff915edb env_end ff915fe0 [ 61.208669][ T6855] binfmt ffffffff89cdcb80 flags cd core_state ffffc9000551fc18 [ 61.208669][ T6855] ioctx_table 0000000000000000 [ 61.208669][ T6855] owner ffff888087208480 exe_file ffff88809e7b8340 [ 61.289633][ T6853] CPU: 0 PID: 6853 Comm: syz-executor790 Not tainted 5.9.0-rc1-syzkaller #0 [ 61.289640][ T6853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.289658][ T6853] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 61.289670][ T6853] 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 [ 61.289676][ T6853] RSP: 0018:ffffc90005407a50 EFLAGS: 00010286 [ 61.289684][ T6853] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 61.289691][ T6853] RDX: ffff8880871c25c0 RSI: ffffffff815dafc7 RDI: fffff52000a80ee9 [ 61.289697][ T6853] RBP: ffff8880976ca240 R08: 000000000000034b R09: ffff8880ae6318e7 [ 61.289710][ T6853] R10: 0000000000000000 R11: 00000000000768c8 R12: ffff888094ae1000 [ 61.298982][ T6857] mm ffff88808b259140 mmap ffff8880a5c42a50 seqnum 0 task_size 4294959104 [ 61.298982][ T6857] get_unmapped_area ffffffff8129caa0 [ 61.298982][ T6857] mmap_base 140692012429312 mmap_legacy_base 46940782739456 highest_vm_end 4287717376 [ 61.298982][ T6857] pgd ffff88809143d000 mm_users 3 mm_count 1 pgtables_bytes 28672 map_count 14 [ 61.298982][ T6857] hiwater_rss 9 hiwater_vm 1102 total_vm 1144 locked_vm 0 [ 61.298982][ T6857] pinned_vm 0 data_vm 1068 exec_vm b3 stack_vm 21 [ 61.298982][ T6857] start_code 8048000 end_code 80f8c0d start_data 80f9f54 end_data 80fafa0 [ 61.298982][ T6857] start_brk 9e3a000 brk 9e5c000 start_stack ff915ca0 [ 61.298982][ T6857] arg_start ff915ec3 arg_end ff915edb env_start ff915edb env_end ff915fe0 [ 61.298982][ T6857] binfmt ffffffff89cdcb80 flags cd core_state ffffc9000553fc18 [ 61.298982][ T6857] ioctx_table 0000000000000000 [ 61.298982][ T6857] owner ffff8880871aa580 exe_file ffff88809e7b8340 [ 61.383299][ T6853] R13: ffff8880976ca29c R14: 0000000020000000 R15: ffffc90005407b88 [ 61.383310][ T6853] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7f3fb40 [ 61.383316][ T6853] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 61.383322][ T6853] CR2: 0000000009e3b0d4 CR3: 00000000a9333000 CR4: 00000000001506f0 [ 61.383331][ T6853] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.383337][ T6853] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.383341][ T6853] Call Trace: [ 61.383364][ T6853] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 61.383383][ T6853] handle_mm_fault+0x369d/0x4590 [ 61.402182][ T6853] ? apply_to_existing_page_range+0x40/0x40 [ 61.402196][ T6853] ? ax25_std_frame_in+0x1040/0x1d20 [ 61.402211][ T6853] ? vmacache_update+0xce/0x140 [ 61.408178][ T6856] ------------[ cut here ]------------ [ 61.427583][ T6853] do_user_addr_fault+0x598/0xbf0 [ 61.427598][ T6853] ? trace_hardirqs_off+0x40/0x210 [ 61.427611][ T6853] exc_page_fault+0xa8/0x160 [ 61.427623][ T6853] asm_exc_page_fault+0x1e/0x30 [ 61.427639][ T6853] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 61.427657][ T6853] 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 [ 61.440608][ T6856] kernel BUG at mm/khugepaged.c:469! [ 61.441649][ T6853] RSP: 0018:ffffc90005407d98 EFLAGS: 00010206 [ 61.441660][ T6853] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 61.441673][ T6853] RDX: 0000000000000052 RSI: ffff88809dfd1800 RDI: 0000000020000000 [ 61.709266][ T6853] RBP: ffff88809dfd1800 R08: 0000000000000000 R09: ffff88809dfd1851 [ 61.717315][ T6853] R10: ffffed1013bfa30a R11: 0000000000000000 R12: 0000000000000052 [ 61.725362][ T6853] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 61.733336][ T6853] _copy_to_user+0x11e/0x160 [ 61.737924][ T6853] do_syslog.part.0+0xf85/0x16c0 [ 61.742858][ T6853] ? wake_up_klogd_work_func+0xf0/0xf0 [ 61.748294][ T6853] ? lock_is_held_type+0xbb/0xf0 [ 61.753267][ T6853] ? lock_is_held_type+0xbb/0xf0 [ 61.758186][ T6853] ? syscall_enter_from_user_mode+0x20/0x290 [ 61.764143][ T6853] ? bpf_lsm_syslog+0x5/0x10 [ 61.768904][ T6853] ? security_syslog+0x73/0x90 [ 61.773651][ T6853] __ia32_sys_syslog+0x9c/0xd0 [ 61.778399][ T6853] __do_fast_syscall_32+0x57/0x80 [ 61.783592][ T6853] do_fast_syscall_32+0x2f/0x70 [ 61.788553][ T6853] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 61.794874][ T6853] RIP: 0023:0xf7f44549 [ 61.799079][ T6853] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 61.820561][ T6853] RSP: 002b:00000000f7f3f1fc EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 61.829075][ T6853] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 61.837026][ T6853] RDX: 00000000000000ce RSI: 0000000000000000 RDI: 0000000000000000 [ 61.845194][ T6853] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 61.853387][ T6853] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 61.861511][ T6853] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 61.870459][ T6853] Modules linked in: [ 61.874391][ T6856] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 61.880473][ T6856] CPU: 1 PID: 6856 Comm: syz-executor790 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 61.890532][ T6856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.894979][ T6854] ------------[ cut here ]------------ [ 61.900679][ T6856] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 61.900692][ T6856] 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 [ 61.900698][ T6856] RSP: 0018:ffffc900054b7a50 EFLAGS: 00010286 [ 61.900707][ T6856] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 61.900713][ T6856] RDX: ffff888094a74080 RSI: ffffffff815dafc7 RDI: fffff52000a96ee9 [ 61.900720][ T6856] RBP: ffff88808ed3d880 R08: 000000000000034b R09: ffff8880ae7318e7 [ 61.900726][ T6856] R10: 0000000000000000 R11: 0000000035383654 R12: ffff888094ae1b00 [ 61.900733][ T6856] R13: ffff88808ed3d8dc R14: 0000000020000000 R15: ffffc900054b7b88 [ 61.900741][ T6856] FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f7f3fb40 [ 61.900749][ T6856] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 61.900761][ T6856] CR2: 0000000020000000 CR3: 000000008ffd9000 CR4: 00000000001506e0 [ 61.910064][ T6854] kernel BUG at mm/khugepaged.c:469! [ 61.912070][ T6856] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.912077][ T6856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.912081][ T6856] Call Trace: [ 61.912101][ T6856] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 61.912120][ T6856] handle_mm_fault+0x369d/0x4590 [ 62.036809][ T6856] ? apply_to_existing_page_range+0x40/0x40 [ 62.042684][ T6856] ? vmacache_update+0xce/0x140 [ 62.047510][ T6856] do_user_addr_fault+0x598/0xbf0 [ 62.052716][ T6856] ? trace_hardirqs_off+0x40/0x210 [ 62.057815][ T6856] exc_page_fault+0xa8/0x160 [ 62.062513][ T6856] asm_exc_page_fault+0x1e/0x30 [ 62.067689][ T6856] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 62.074280][ T6856] 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 [ 62.094505][ T6856] RSP: 0018:ffffc900054b7d98 EFLAGS: 00010206 [ 62.100650][ T6856] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 62.108600][ T6856] RDX: 0000000000000052 RSI: ffff8880a6908800 RDI: 0000000020000000 [ 62.116601][ T6856] RBP: ffff8880a6908800 R08: 0000000000000000 R09: ffff8880a6908851 [ 62.124545][ T6856] R10: ffffed1014d2110a R11: 0000000000000000 R12: 0000000000000052 [ 62.132490][ T6856] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 62.140466][ T6856] _copy_to_user+0x11e/0x160 [ 62.145046][ T6856] do_syslog.part.0+0xf85/0x16c0 [ 62.150046][ T6856] ? wake_up_klogd_work_func+0xf0/0xf0 [ 62.155505][ T6856] ? lock_is_held_type+0xbb/0xf0 [ 62.160415][ T6856] ? lock_is_held_type+0xbb/0xf0 [ 62.165334][ T6856] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.171284][ T6856] ? bpf_lsm_syslog+0x5/0x10 [ 62.175974][ T6856] ? security_syslog+0x73/0x90 [ 62.180719][ T6856] __ia32_sys_syslog+0x9c/0xd0 [ 62.185457][ T6856] __do_fast_syscall_32+0x57/0x80 [ 62.190465][ T6856] do_fast_syscall_32+0x2f/0x70 [ 62.195417][ T6856] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 62.201726][ T6856] RIP: 0023:0xf7f44549 [ 62.205818][ T6856] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 62.225406][ T6856] RSP: 002b:00000000f7f3f1fc EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 62.233890][ T6856] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 62.241849][ T6856] RDX: 00000000000000ce RSI: 0000000000000000 RDI: 0000000000000000 [ 62.249813][ T6856] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 62.257758][ T6856] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 62.265703][ T6856] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.273756][ T6856] Modules linked in: [ 62.277799][ T6854] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 62.283878][ T6854] CPU: 0 PID: 6854 Comm: syz-executor790 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 62.291647][ T6855] ------------[ cut here ]------------ [ 62.294111][ T6854] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.294131][ T6854] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 62.294148][ T6854] 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 [ 62.300043][ T6855] kernel BUG at mm/khugepaged.c:469! [ 62.309731][ T6854] RSP: 0018:ffffc90005487a50 EFLAGS: 00010286 [ 62.309740][ T6854] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 62.309748][ T6854] RDX: ffff8880871c8000 RSI: ffffffff815dafc7 RDI: fffff52000a90ee9 [ 62.309754][ T6854] RBP: ffff8880a7fcb700 R08: 000000000000034b R09: ffff8880ae6318e7 [ 62.309761][ T6854] R10: 0000000000000000 R11: 0000000035383654 R12: ffff888094ae14d0 [ 62.309767][ T6854] R13: ffff8880a7fcb75c R14: 0000000020000000 R15: ffffc90005487b88 [ 62.309776][ T6854] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7f3fb40 [ 62.309789][ T6854] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 62.316045][ T6857] ------------[ cut here ]------------ [ 62.335156][ T6854] CR2: 00007feb9dc2b018 CR3: 00000000a7a75000 CR4: 00000000001506f0 [ 62.335166][ T6854] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.335173][ T6854] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.335176][ T6854] Call Trace: [ 62.335199][ T6854] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 62.335213][ T6854] handle_mm_fault+0x369d/0x4590 [ 62.335231][ T6854] ? apply_to_existing_page_range+0x40/0x40 [ 62.452377][ T6854] ? ax25_info_show+0x500/0x930 [ 62.457202][ T6854] ? vmacache_update+0xce/0x140 [ 62.462049][ T6854] do_user_addr_fault+0x598/0xbf0 [ 62.467053][ T6854] ? trace_hardirqs_off+0x40/0x210 [ 62.472144][ T6854] exc_page_fault+0xa8/0x160 [ 62.476710][ T6854] asm_exc_page_fault+0x1e/0x30 [ 62.481536][ T6854] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 62.488183][ T6854] 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 [ 62.511566][ T6854] RSP: 0018:ffffc90005487d98 EFLAGS: 00010206 [ 62.517627][ T6854] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 62.525589][ T6854] RDX: 0000000000000052 RSI: ffff88809f599000 RDI: 0000000020000000 [ 62.533544][ T6854] RBP: ffff88809f599000 R08: 0000000000000000 R09: ffff88809f599051 [ 62.541522][ T6854] R10: ffffed1013eb320a R11: 0000000000000000 R12: 0000000000000052 [ 62.549468][ T6854] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 62.557429][ T6854] _copy_to_user+0x11e/0x160 [ 62.562015][ T6854] do_syslog.part.0+0xf85/0x16c0 [ 62.567264][ T6854] ? wake_up_klogd_work_func+0xf0/0xf0 [ 62.573372][ T6854] ? lock_is_held_type+0xbb/0xf0 [ 62.578531][ T6854] ? lock_is_held_type+0xbb/0xf0 [ 62.583488][ T6854] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.589443][ T6854] ? bpf_lsm_syslog+0x5/0x10 [ 62.594009][ T6854] ? security_syslog+0x73/0x90 [ 62.598854][ T6854] __ia32_sys_syslog+0x9c/0xd0 [ 62.603615][ T6854] __do_fast_syscall_32+0x57/0x80 [ 62.608649][ T6854] do_fast_syscall_32+0x2f/0x70 [ 62.613493][ T6854] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 62.619793][ T6854] RIP: 0023:0xf7f44549 [ 62.623838][ T6854] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 62.643418][ T6854] RSP: 002b:00000000f7f3f1fc EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 62.651941][ T6854] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 62.660594][ T6854] RDX: 00000000000000ce RSI: 0000000000000000 RDI: 0000000000000000 [ 62.668617][ T6854] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 62.676582][ T6854] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 62.684549][ T6854] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.693563][ T6854] Modules linked in: [ 62.697485][ T6855] invalid opcode: 0000 [#4] PREEMPT SMP KASAN [ 62.703564][ T6855] CPU: 1 PID: 6855 Comm: syz-executor790 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 62.713715][ T6855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.723782][ T6855] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 62.724189][ T6853] ---[ end trace 987c299cde5b1299 ]--- [ 62.729589][ T6855] 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 [ 62.729595][ T6855] RSP: 0018:ffffc90005497a50 EFLAGS: 00010286 [ 62.729604][ T6855] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 62.729612][ T6855] RDX: ffff88808dea6040 RSI: ffffffff815dafc7 RDI: fffff52000a92ee9 [ 62.729618][ T6855] RBP: ffff88809fb0d6c0 R08: 000000000000034b R09: ffff8880ae7318e7 [ 62.729624][ T6855] R10: 0000000000000000 R11: 0000000035383654 R12: ffff888094ae1bb0 [ 62.729630][ T6855] R13: ffff88809fb0d71c R14: 0000000020000000 R15: ffffc90005497b88 [ 62.729639][ T6855] FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f7f3fb40 [ 62.729646][ T6855] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 62.729652][ T6855] CR2: 00007fb33003c0c8 CR3: 000000009f17e000 CR4: 00000000001506e0 [ 62.729669][ T6855] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.735328][ T6853] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 62.754810][ T6855] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.754815][ T6855] Call Trace: [ 62.754838][ T6855] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 62.754856][ T6855] handle_mm_fault+0x369d/0x4590 [ 62.754870][ T6855] ? apply_to_existing_page_range+0x40/0x40 [ 62.754885][ T6855] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 62.754894][ T6855] ? vmacache_update+0xce/0x140 [ 62.754906][ T6855] do_user_addr_fault+0x598/0xbf0 [ 62.754919][ T6855] ? trace_hardirqs_off+0x40/0x210 [ 62.754932][ T6855] exc_page_fault+0xa8/0x160 [ 62.754950][ T6855] asm_exc_page_fault+0x1e/0x30 [ 62.767851][ T6853] 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 [ 62.768966][ T6855] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 62.768978][ T6855] 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 [ 62.768984][ T6855] RSP: 0018:ffffc90005497d98 EFLAGS: 00010206 [ 62.778197][ T6853] RSP: 0018:ffffc90005407a50 EFLAGS: 00010286 [ 62.784902][ T6855] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 62.784910][ T6855] RDX: 0000000000000052 RSI: ffff8880a62a2800 RDI: 0000000020000000 [ 62.784917][ T6855] RBP: ffff8880a62a2800 R08: 0000000000000000 R09: ffff8880a62a2851 [ 62.784924][ T6855] R10: ffffed1014c5450a R11: 0000000039383143 R12: 0000000000000052 [ 62.784937][ T6855] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 62.794816][ T6853] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 62.801223][ T6855] _copy_to_user+0x11e/0x160 [ 62.801237][ T6855] do_syslog.part.0+0xf85/0x16c0 [ 62.801251][ T6855] ? wake_up_klogd_work_func+0xf0/0xf0 [ 62.801264][ T6855] ? lock_is_held_type+0xbb/0xf0 [ 62.801274][ T6855] ? lock_is_held_type+0xbb/0xf0 [ 62.801291][ T6855] ? syscall_enter_from_user_mode+0x20/0x290 [ 62.812482][ T6853] RDX: ffff8880871c25c0 RSI: ffffffff815dafc7 RDI: fffff52000a80ee9 [ 62.816930][ T6855] ? bpf_lsm_syslog+0x5/0x10 [ 62.816943][ T6855] ? security_syslog+0x73/0x90 [ 62.816956][ T6855] __ia32_sys_syslog+0x9c/0xd0 [ 62.816970][ T6855] __do_fast_syscall_32+0x57/0x80 [ 62.816981][ T6855] do_fast_syscall_32+0x2f/0x70 [ 62.817001][ T6855] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 62.827502][ T6853] RBP: ffff8880976ca240 R08: 000000000000034b R09: ffff8880ae6318e7 [ 62.832907][ T6855] RIP: 0023:0xf7f44549 [ 62.832920][ T6855] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 62.832926][ T6855] RSP: 002b:00000000f7f3f1fc EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 62.840250][ T6853] R10: 0000000000000000 R11: 00000000000768c8 R12: ffff888094ae1000 [ 62.846689][ T6855] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 62.846695][ T6855] RDX: 00000000000000ce RSI: 0000000000000000 RDI: 0000000000000000 [ 62.846702][ T6855] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 62.846709][ T6855] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 62.846715][ T6855] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 62.846725][ T6855] Modules linked in: [ 62.851978][ T6853] R13: ffff8880976ca29c R14: 0000000020000000 R15: ffffc90005407b88 [ 62.858036][ T6857] kernel BUG at mm/khugepaged.c:469! [ 62.863682][ T6853] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:00000000f7f3fb40 [ 62.867641][ T6857] invalid opcode: 0000 [#5] PREEMPT SMP KASAN [ 62.873918][ T6853] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 62.877565][ T6857] CPU: 1 PID: 6857 Comm: syz-executor790 Tainted: G D 5.9.0-rc1-syzkaller #0 [ 62.877571][ T6857] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.877589][ T6857] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 62.877600][ T6857] 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 [ 62.877606][ T6857] RSP: 0018:ffffc900054c7a50 EFLAGS: 00010286 [ 62.877615][ T6857] RAX: 000000000000034b RBX: 0000000000000003 RCX: 0000000000000000 [ 62.877628][ T6857] RDX: ffff8880871b60c0 RSI: ffffffff815dafc7 RDI: fffff52000a98ee9 [ 62.885341][ T6853] CR2: 00007feb9dc39010 CR3: 00000000a9333000 CR4: 00000000001506f0 [ 62.887973][ T6857] RBP: ffff88808b259140 R08: 000000000000034b R09: ffff8880ae7318e7 [ 62.887980][ T6857] R10: 0000000000000000 R11: 0000000035383654 R12: ffff888094ae1c60 [ 62.887986][ T6857] R13: ffff88808b25919c R14: 0000000020000000 R15: ffffc900054c7b88 [ 62.888001][ T6857] FS: 0000000000000000(0000) GS:ffff8880ae700000(0063) knlGS:00000000f7f3fb40 [ 62.888008][ T6857] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 62.888014][ T6857] CR2: 00007fb33003d068 CR3: 000000009143d000 CR4: 00000000001506e0 [ 62.888023][ T6857] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.888029][ T6857] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.888033][ T6857] Call Trace: [ 62.888054][ T6857] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 62.888073][ T6857] handle_mm_fault+0x369d/0x4590 [ 62.896741][ T6853] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.897811][ T6857] ? apply_to_existing_page_range+0x40/0x40 [ 62.897829][ T6857] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 62.897839][ T6857] ? vmacache_update+0xce/0x140 [ 62.897854][ T6857] do_user_addr_fault+0x598/0xbf0 [ 62.897867][ T6857] ? trace_hardirqs_off+0x40/0x210 [ 62.897879][ T6857] exc_page_fault+0xa8/0x160 [ 62.897896][ T6857] asm_exc_page_fault+0x1e/0x30 [ 62.920132][ T6853] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.924307][ T6857] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 62.924319][ T6857] 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 [ 62.924332][ T6857] RSP: 0018:ffffc900054c7d98 EFLAGS: 00010206 [ 62.945530][ T6853] Kernel panic - not syncing: Fatal exception [ 62.950367][ T6857] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000052 [ 63.458388][ T6857] RDX: 0000000000000052 RSI: ffff8880a752f000 RDI: 0000000020000000 [ 63.466356][ T6857] RBP: ffff8880a752f000 R08: 0000000000000000 R09: ffff8880a752f051 [ 63.474311][ T6857] R10: ffffed1014ea5e0a R11: 0000000039383143 R12: 0000000000000052 [ 63.482457][ T6857] R13: 0000000020000052 R14: 00007ffffffff000 R15: 0000000000000000 [ 63.490426][ T6857] _copy_to_user+0x11e/0x160 [ 63.494997][ T6857] do_syslog.part.0+0xf85/0x16c0 [ 63.499916][ T6857] ? wake_up_klogd_work_func+0xf0/0xf0 [ 63.505357][ T6857] ? lock_is_held_type+0xbb/0xf0 [ 63.510273][ T6857] ? lock_is_held_type+0xbb/0xf0 [ 63.515190][ T6857] ? syscall_enter_from_user_mode+0x20/0x290 [ 63.521149][ T6857] ? bpf_lsm_syslog+0x5/0x10 [ 63.525717][ T6857] ? security_syslog+0x73/0x90 [ 63.530459][ T6857] __ia32_sys_syslog+0x9c/0xd0 [ 63.535222][ T6857] __do_fast_syscall_32+0x57/0x80 [ 63.540317][ T6857] do_fast_syscall_32+0x2f/0x70 [ 63.545175][ T6857] entry_SYSENTER_compat_after_hwframe+0x4d/0x5c [ 63.551657][ T6857] RIP: 0023:0xf7f44549 [ 63.555716][ T6857] Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 63.575327][ T6857] RSP: 002b:00000000f7f3f1fc EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 63.583724][ T6857] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 63.591675][ T6857] RDX: 00000000000000ce RSI: 0000000000000000 RDI: 0000000000000000 [ 63.599819][ T6857] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 63.607966][ T6857] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 63.616264][ T6857] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 63.624318][ T6857] Modules linked in: [ 63.629808][ T6853] Kernel Offset: disabled [ 63.634228][ T6853] Rebooting in 86400 seconds..