[ OK ] Started Daily Cleanup of Temporary Directories. Starting OpenBSD Secure Shell server... Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.182' (ECDSA) to the list of known hosts. syzkaller login: [ 64.752505][ T28] audit: type=1400 audit(1597435392.372:8): avc: denied { execmem } for pid=6845 comm="syz-executor241" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 64.772882][ T6853] IPVS: ftp: loaded support on port[0] = 21 [ 64.795090][ T6852] IPVS: ftp: loaded support on port[0] = 21 [ 64.805041][ T6855] IPVS: ftp: loaded support on port[0] = 21 [ 64.810159][ T6857] IPVS: ftp: loaded support on port[0] = 21 [ 64.819915][ T6854] IPVS: ftp: loaded support on port[0] = 21 [ 64.821347][ T6856] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 65.116560][ T6973] mm ffff888099c606c0 mmap ffff888095288000 seqnum 0 task_size 140737488351232 [ 65.116560][ T6973] get_unmapped_area ffffffff8129caf0 [ 65.116560][ T6973] mmap_base 139969608704000 mmap_legacy_base 47663186464768 highest_vm_end 140727474073600 [ 65.116560][ T6973] pgd ffff888087795000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 65.116560][ T6973] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 65.116560][ T6973] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 65.116560][ T6973] start_code 400000 end_code 4d955f start_data 6d9ea8 end_data 6dbb90 [ 65.116560][ T6973] start_brk be3000 brk c06000 start_stack 7ffdab193750 [ 65.116560][ T6973] arg_start 7ffdab194ec3 arg_end 7ffdab194edb env_start 7ffdab194edb env_end 7ffdab194fe0 [ 65.116560][ T6973] binfmt ffffffff89cdc100 flags cd core_state ffffc9000412fc18 [ 65.116560][ T6973] ioctx_table 0000000000000000 [ 65.116560][ T6973] owner ffff88808f14a280 exe_file ffff8880997f9580 [ 65.207578][ T6975] mm ffff8880a7308ec0 mmap ffff8880a614c670 seqnum 0 task_size 140737488351232 [ 65.207578][ T6975] get_unmapped_area ffffffff8129caf0 [ 65.207578][ T6975] mmap_base 139969608704000 mmap_legacy_base 47663186464768 highest_vm_end 140727474073600 [ 65.207578][ T6975] pgd ffff8880a14e5000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 65.207578][ T6975] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 65.207578][ T6975] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 65.207578][ T6975] start_code 400000 end_code 4d955f start_data 6d9ea8 end_data 6dbb90 [ 65.207578][ T6975] start_brk be3000 brk c06000 start_stack 7ffdab193750 [ 65.207578][ T6975] arg_start 7ffdab194ec3 arg_end 7ffdab194edb env_start 7ffdab194edb env_end 7ffdab194fe0 [ 65.207578][ T6975] binfmt ffffffff89cdc100 flags cd core_state ffffc9000422fc18 [ 65.207578][ T6975] ioctx_table 0000000000000000 [ 65.207578][ T6975] owner ffff8880a29b8300 exe_file ffff8880997f9580 [ 65.229371][ T6996] mm ffff88809372e340 mmap ffff8880a1496670 seqnum 0 task_size 140737488351232 [ 65.229371][ T6996] get_unmapped_area ffffffff8129caf0 executing program [ 65.229371][ T6996] mmap_base 139969608704000 mmap_legacy_base 47663186464768 highest_vm_end 140727474073600 [ 65.229371][ T6996] pgd ffff8880a6b23000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 65.229371][ T6996] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 65.229371][ T6996] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 65.229371][ T6996] start_code 400000 end_code 4d955f start_data 6d9ea8 end_data 6dbb90 [ 65.229371][ T6996] start_brk be3000 brk c06000 start_stack 7ffdab193750 [ 65.229371][ T6996] arg_start 7ffdab194ec3 arg_end 7ffdab194edb env_start 7ffdab194edb env_end 7ffdab194fe0 executing program executing program executing program [ 65.229371][ T6996] binfmt ffffffff89cdc100 flags cd core_state ffffc9000424fc18 [ 65.229371][ T6996] ioctx_table 0000000000000000 [ 65.229371][ T6996] owner ffff888090618140 exe_file ffff8880997f9580 [ 65.298529][ T6973] ------------[ cut here ]------------ executing program executing program executing program [ 65.410120][ T6975] ------------[ cut here ]------------ [ 65.452405][ T6996] ------------[ cut here ]------------ [ 65.500791][ T6996] kernel BUG at mm/khugepaged.c:469! [ 65.506668][ T7012] mm ffff88808f095500 mmap ffff8880923d0738 seqnum 0 task_size 140737488351232 [ 65.506668][ T7012] get_unmapped_area ffffffff8129caf0 [ 65.506668][ T7012] mmap_base 139969608704000 mmap_legacy_base 47663186464768 highest_vm_end 140727474073600 [ 65.506668][ T7012] pgd ffff88808f209000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 65.506668][ T7012] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 65.506668][ T7012] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 65.506668][ T7012] start_code 400000 end_code 4d955f start_data 6d9ea8 end_data 6dbb90 [ 65.506668][ T7012] start_brk be3000 brk c06000 start_stack 7ffdab193750 [ 65.506668][ T7012] arg_start 7ffdab194ec3 arg_end 7ffdab194edb env_start 7ffdab194edb env_end 7ffdab194fe0 [ 65.506668][ T7012] binfmt ffffffff89cdc100 flags cd core_state ffffc900042c7c18 [ 65.506668][ T7012] ioctx_table 0000000000000000 [ 65.506668][ T7012] owner ffff88808b70e040 exe_file ffff8880997f9580 [ 65.514016][ T6996] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 65.602995][ T6975] kernel BUG at mm/khugepaged.c:469! [ 65.605587][ T6996] CPU: 0 PID: 6996 Comm: syz-executor241 Not tainted 5.8.0-syzkaller #0 [ 65.605602][ T6996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.629258][ T6996] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 65.635038][ T6996] Code: e4 49 81 fe c0 ae 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 [ 65.654621][ T6996] RSP: 0018:ffffc90003effa70 EFLAGS: 00010282 [ 65.660672][ T6996] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 65.668615][ T6996] RDX: ffff8880a070e280 RSI: ffffffff815dbc57 RDI: fffff520007dfeed [ 65.676558][ T6996] RBP: ffff88809372e340 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 65.684507][ T6996] R10: 0000000000000000 R11: 0000000039393654 R12: ffff8880a195ce70 [ 65.692454][ T6996] R13: ffff88809372e39c R14: 0000000020000000 R15: ffffc90003effba8 [ 65.700402][ T6996] FS: 00007f4d36ce5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 65.709302][ T6996] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 65.715878][ T6996] CR2: 00007f4d36ce4e78 CR3: 00000000a6b23000 CR4: 00000000001506f0 [ 65.723826][ T6996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 65.731784][ T6996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 65.739738][ T6996] Call Trace: [ 65.743024][ T6996] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 65.748806][ T6996] handle_mm_fault+0x369d/0x4590 [ 65.753720][ T6996] ? apply_to_existing_page_range+0x40/0x40 [ 65.759595][ T6996] ? vmacache_update+0xce/0x140 [ 65.764428][ T6996] do_user_addr_fault+0x598/0xbf0 [ 65.769437][ T6996] ? trace_hardirqs_on_prepare+0x2e0/0x2e0 [ 65.775226][ T6996] exc_page_fault+0xa8/0x160 [ 65.779805][ T6996] asm_exc_page_fault+0x1e/0x30 [ 65.784662][ T6996] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 65.791221][ T6996] 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 [ 65.810802][ T6996] RSP: 0018:ffffc90003effdb0 EFLAGS: 00010202 [ 65.816844][ T6996] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000044 [ 65.824789][ T6996] RDX: 0000000000000044 RSI: ffff88809214b000 RDI: 0000000020000000 [ 65.832734][ T6996] RBP: ffff88809214b000 R08: 0000000000000000 R09: ffff88809214b043 [ 65.840695][ T6996] R10: ffffed1012429608 R11: 0000000000000000 R12: 0000000000000044 [ 65.848650][ T6996] R13: 0000000020000044 R14: 00007ffffffff000 R15: 0000000000000000 [ 65.856619][ T6996] _copy_to_user+0x11e/0x160 [ 65.861192][ T6996] do_syslog.part.0+0xf85/0x16c0 [ 65.866108][ T6996] ? wake_up_klogd_work_func+0xf0/0xf0 [ 65.871548][ T6996] ? selinux_syslog+0xfa/0x2c0 [ 65.876284][ T6996] ? bpf_lsm_syslog+0x5/0x10 [ 65.880854][ T6996] ? security_syslog+0x73/0x90 [ 65.885594][ T6996] __x64_sys_syslog+0x97/0xc0 [ 65.890250][ T6996] do_syscall_64+0x2d/0x70 [ 65.894663][ T6996] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 65.900530][ T6996] RIP: 0033:0x4468e9 [ 65.904397][ T6996] Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 65.923989][ T6996] RSP: 002b:00007f4d36ce4db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 65.933244][ T6996] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004468e9 [ 65.941189][ T6996] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 65.949134][ T6996] RBP: 00000000006dbc20 R08: 00007f4d36ce5700 R09: 0000000000000000 [ 65.957081][ T6996] R10: 00007f4d36ce5700 R11: 0000000000000246 R12: 00000000006dbc2c [ 65.965024][ T6996] R13: 00007ffdab1934ff R14: 00007f4d36ce59c0 R15: 0000000000000000 [ 65.972984][ T6996] Modules linked in: [ 65.976945][ T6975] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 65.983019][ T6975] CPU: 1 PID: 6975 Comm: syz-executor241 Tainted: G D 5.8.0-syzkaller #0 [ 66.002020][ T6975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.012112][ T6975] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 66.016636][ T6996] ---[ end trace 25c3aa3d1ab29246 ]--- [ 66.017954][ T6975] Code: e4 49 81 fe c0 ae 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 [ 66.017963][ T6975] RSP: 0018:ffffc900040ffa70 EFLAGS: 00010282 [ 66.017973][ T6975] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 66.017981][ T6975] RDX: ffff888093f0a340 RSI: ffffffff815dbc57 RDI: fffff5200081feed [ 66.017995][ T6975] RBP: ffff8880a7308ec0 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 66.023540][ T6996] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 66.043050][ T6975] R10: 0000000000000000 R11: 0000000000082558 R12: ffff8880a68d5e70 [ 66.043058][ T6975] R13: ffff8880a7308f1c R14: 0000000020000000 R15: ffffc900040ffba8 [ 66.043067][ T6975] FS: 00007f4d36ce5700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 66.043074][ T6975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.043082][ T6975] CR2: 00007f4d36cc3e78 CR3: 00000000a14e5000 CR4: 00000000001506e0 [ 66.043093][ T6975] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.043100][ T6975] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.043104][ T6975] Call Trace: [ 66.043127][ T6975] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 66.043144][ T6975] handle_mm_fault+0x369d/0x4590 [ 66.043170][ T6975] ? apply_to_existing_page_range+0x40/0x40 executing program [ 66.055637][ T6996] Code: e4 49 81 fe c0 ae 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 [ 66.057636][ T6975] ? vmacache_update+0xce/0x140 [ 66.057652][ T6975] do_user_addr_fault+0x598/0xbf0 [ 66.057668][ T6975] ? trace_hardirqs_on_prepare+0x2e0/0x2e0 [ 66.057683][ T6975] exc_page_fault+0xa8/0x160 [ 66.057702][ T6975] asm_exc_page_fault+0x1e/0x30 [ 66.067840][ T6996] RSP: 0018:ffffc90003effa70 EFLAGS: 00010282 [ 66.073629][ T6975] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 66.073642][ T6975] 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 [ 66.073649][ T6975] RSP: 0018:ffffc900040ffdb0 EFLAGS: 00010202 [ 66.073659][ T6975] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000044 [ 66.073674][ T6975] RDX: 0000000000000044 RSI: ffff88809f67c000 RDI: 0000000020000000 [ 66.081890][ T6996] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 66.087415][ T6975] RBP: ffff88809f67c000 R08: 0000000000000000 R09: ffff88809f67c043 [ 66.087422][ T6975] R10: ffffed1013ecf808 R11: 0000000000000000 R12: 0000000000000044 [ 66.087430][ T6975] R13: 0000000020000044 R14: 00007ffffffff000 R15: 0000000000000000 [ 66.087456][ T6975] _copy_to_user+0x11e/0x160 [ 66.087471][ T6975] do_syslog.part.0+0xf85/0x16c0 [ 66.087488][ T6975] ? wake_up_klogd_work_func+0xf0/0xf0 [ 66.098681][ T6996] RDX: ffff8880a070e280 RSI: ffffffff815dbc57 RDI: fffff520007dfeed [ 66.104363][ T6975] ? selinux_syslog+0xfa/0x2c0 [ 66.104376][ T6975] ? bpf_lsm_syslog+0x5/0x10 [ 66.104387][ T6975] ? security_syslog+0x73/0x90 [ 66.104405][ T6975] __x64_sys_syslog+0x97/0xc0 [ 66.113013][ T6996] RBP: ffff88809372e340 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 66.118942][ T6975] do_syscall_64+0x2d/0x70 [ 66.118959][ T6975] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.118968][ T6975] RIP: 0033:0x4468e9 [ 66.118983][ T6975] Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.118989][ T6975] RSP: 002b:00007f4d36ce4db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 66.129384][ T6996] R10: 0000000000000000 R11: 0000000039393654 R12: ffff8880a195ce70 [ 66.134916][ T6975] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004468e9 [ 66.134923][ T6975] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 66.134931][ T6975] RBP: 00000000006dbc20 R08: 00007f4d36ce5700 R09: 0000000000000000 [ 66.134939][ T6975] R10: 00007f4d36ce5700 R11: 0000000000000246 R12: 00000000006dbc2c [ 66.134947][ T6975] R13: 00007ffdab1934ff R14: 00007f4d36ce59c0 R15: 0000000000000000 [ 66.134965][ T6975] Modules linked in: [ 66.140934][ T6996] R13: ffff88809372e39c R14: 0000000020000000 R15: ffffc90003effba8 [ 66.151774][ T7016] mm ffff8880930af440 mmap ffff88809a02f738 seqnum 0 task_size 140737488351232 [ 66.151774][ T7016] get_unmapped_area ffffffff8129caf0 [ 66.151774][ T7016] mmap_base 139969608704000 mmap_legacy_base 47663186464768 highest_vm_end 140727474073600 [ 66.151774][ T7016] pgd ffff88809f65e000 mm_users 3 mm_count 1 pgtables_bytes 45056 map_count 14 [ 66.151774][ T7016] hiwater_rss c hiwater_vm 1130 total_vm 1172 locked_vm 0 [ 66.151774][ T7016] pinned_vm 0 data_vm 106d exec_vm dc stack_vm 21 [ 66.151774][ T7016] start_code 400000 end_code 4d955f start_data 6d9ea8 end_data 6dbb90 [ 66.151774][ T7016] start_brk be3000 brk c06000 start_stack 7ffdab193750 [ 66.151774][ T7016] arg_start 7ffdab194ec3 arg_end 7ffdab194edb env_start 7ffdab194edb env_end 7ffdab194fe0 [ 66.151774][ T7016] binfmt ffffffff89cdc100 flags cd core_state ffffc900042a7c18 [ 66.151774][ T7016] ioctx_table 0000000000000000 [ 66.151774][ T7016] owner ffff88808ea3a140 exe_file ffff8880997f9580 [ 66.156929][ T6996] FS: 00007f4d36ce5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 66.189659][ T7016] ------------[ cut here ]------------ [ 66.191626][ T6973] kernel BUG at mm/khugepaged.c:469! [ 66.196895][ T7016] kernel BUG at mm/khugepaged.c:469! [ 66.202845][ T6973] invalid opcode: 0000 [#3] PREEMPT SMP KASAN [ 66.566921][ T6973] CPU: 0 PID: 6973 Comm: syz-executor241 Tainted: G D 5.8.0-syzkaller #0 [ 66.576613][ T6973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.586663][ T6973] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 66.592453][ T6973] Code: e4 49 81 fe c0 ae 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 [ 66.612044][ T6973] RSP: 0018:ffffc9000410fa70 EFLAGS: 00010282 [ 66.618084][ T6973] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 66.626029][ T6973] RDX: ffff88808772a2c0 RSI: ffffffff815dbc57 RDI: fffff52000821eed [ 66.633976][ T6973] RBP: ffff888099c606c0 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 66.641922][ T6973] R10: 0000000000000000 R11: 00000000000354e8 R12: ffff8880a67bb4d0 [ 66.649869][ T6973] R13: ffff888099c6071c R14: 0000000020000000 R15: ffffc9000410fba8 [ 66.657831][ T6973] FS: 00007f4d36ce5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 66.666735][ T6973] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.673305][ T6973] CR2: 00007ffdab193590 CR3: 0000000087795000 CR4: 00000000001506f0 [ 66.681268][ T6973] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.689225][ T6973] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.697178][ T6973] Call Trace: [ 66.700461][ T6973] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 66.706255][ T6973] handle_mm_fault+0x369d/0x4590 [ 66.711177][ T6973] ? apply_to_existing_page_range+0x40/0x40 [ 66.717043][ T6973] ? vmacache_update+0xce/0x140 [ 66.721879][ T6973] do_user_addr_fault+0x598/0xbf0 [ 66.726877][ T6973] ? trace_hardirqs_on_prepare+0x2e0/0x2e0 [ 66.732669][ T6973] exc_page_fault+0xa8/0x160 [ 66.737245][ T6973] asm_exc_page_fault+0x1e/0x30 [ 66.742071][ T6973] RIP: 0010:copy_user_enhanced_fast_string+0xe/0x30 [ 66.748637][ T6973] 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 [ 66.768744][ T6973] RSP: 0018:ffffc9000410fdb0 EFLAGS: 00010202 [ 66.774780][ T6973] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000044 [ 66.782736][ T6973] RDX: 0000000000000044 RSI: ffff8880a276b800 RDI: 0000000020000000 [ 66.790677][ T6973] RBP: ffff8880a276b800 R08: 0000000000000000 R09: ffff8880a276b843 [ 66.798630][ T6973] R10: ffffed10144ed708 R11: 0000000000000000 R12: 0000000000000044 [ 66.806570][ T6973] R13: 0000000020000044 R14: 00007ffffffff000 R15: 0000000000000000 [ 66.814527][ T6973] _copy_to_user+0x11e/0x160 [ 66.819089][ T6973] do_syslog.part.0+0xf85/0x16c0 [ 66.823996][ T6973] ? wake_up_klogd_work_func+0xf0/0xf0 [ 66.829429][ T6973] ? selinux_syslog+0xfa/0x2c0 [ 66.834174][ T6973] ? bpf_lsm_syslog+0x5/0x10 [ 66.838730][ T6973] ? security_syslog+0x73/0x90 [ 66.843463][ T6973] __x64_sys_syslog+0x97/0xc0 [ 66.848122][ T6973] do_syscall_64+0x2d/0x70 [ 66.852510][ T6973] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.858380][ T6973] RIP: 0033:0x4468e9 [ 66.862247][ T6973] Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 66.881822][ T6973] RSP: 002b:00007f4d36ce4db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 66.890212][ T6973] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004468e9 [ 66.898152][ T6973] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 66.906103][ T6973] RBP: 00000000006dbc20 R08: 00007f4d36ce5700 R09: 0000000000000000 [ 66.914046][ T6973] R10: 00007f4d36ce5700 R11: 0000000000000246 R12: 00000000006dbc2c [ 66.921998][ T6973] R13: 00007ffdab1934ff R14: 00007f4d36ce59c0 R15: 0000000000000000 [ 66.929941][ T6973] Modules linked in: [ 66.933870][ T7016] invalid opcode: 0000 [#4] PREEMPT SMP KASAN [ 66.939944][ T7016] CPU: 1 PID: 7016 Comm: syz-executor241 Tainted: G D 5.8.0-syzkaller #0 [ 66.949644][ T7016] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.959081][ T6996] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.959701][ T7016] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 66.959715][ T7016] Code: e4 49 81 fe c0 ae 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 [ 66.959722][ T7016] RSP: 0018:ffffc9000423fa70 EFLAGS: 00010282 [ 66.967985][ T6996] CR2: 00007fbb7dac1000 CR3: 00000000a6b23000 CR4: 00000000001506f0 [ 66.972079][ T7016] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 66.972088][ T7016] RDX: ffff8880a1558180 RSI: ffffffff815dbc57 RDI: fffff52000847eed [ 66.972096][ T7016] RBP: ffff8880930af440 R08: 0000000000000363 R09: ffff8880ae7318e7 [ 66.972104][ T7016] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880a68d5d10 [ 66.972111][ T7016] R13: ffff8880930af49c R14: 0000000020000000 R15: ffffc9000423fba8 [ 66.972128][ T7016] FS: 00007f4d36ce5700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 66.994464][ T7012] ------------[ cut here ]------------ [ 66.997749][ T7016] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.997757][ T7016] CR2: 00000000004b50e0 CR3: 000000009f65e000 CR4: 00000000001506e0 [ 66.997769][ T7016] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.997777][ T7016] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.997780][ T7016] Call Trace: [ 66.997801][ T7016] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 66.997827][ T7016] handle_mm_fault+0x369d/0x4590 [ 67.008800][ T7012] kernel BUG at mm/khugepaged.c:469! [ 67.013755][ T7016] ? apply_to_existing_page_range+0x40/0x40 [ 67.013771][ T7016] ? vmacache_update+0xce/0x140 [ 67.013790][ T7016] do_user_addr_fault+0x598/0xbf0 [ 67.023385][ T6996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.029962][ T7016] ? trace_hardirqs_on_prepare+0x2e0/0x2e0 [ 67.029978][ T7016] exc_page_fault+0xa8/0x160 [ 67.029995][ T7016] asm_exc_page_fault+0x1e/0x30 [ 67.030024][ T7016] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 67.030042][ T7016] 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 [ 67.174441][ T7016] RSP: 0018:ffffc9000423fdb0 EFLAGS: 00010203 [ 67.180485][ T7016] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000007 [ 67.188429][ T7016] RDX: 0000000000000007 RSI: ffff8880a3f8a800 RDI: 0000000020000000 [ 67.196374][ T7016] RBP: ffff8880a3f8a800 R08: 362020205b3e343c R09: ffff8880a3f8a83e [ 67.204316][ T7016] R10: ffffed10147f1507 R11: 0000000037393654 R12: 000000000000003f [ 67.212277][ T7016] R13: 000000002000003f R14: 00007ffffffff000 R15: 0000000000000000 [ 67.220246][ T7016] _copy_to_user+0x11e/0x160 [ 67.224813][ T7016] do_syslog.part.0+0xf85/0x16c0 [ 67.229734][ T7016] ? wake_up_klogd_work_func+0xf0/0xf0 [ 67.235166][ T7016] ? selinux_syslog+0xfa/0x2c0 [ 67.239901][ T7016] ? bpf_lsm_syslog+0x5/0x10 [ 67.244460][ T7016] ? security_syslog+0x73/0x90 [ 67.249194][ T7016] __x64_sys_syslog+0x97/0xc0 [ 67.253854][ T7016] do_syscall_64+0x2d/0x70 [ 67.258244][ T7016] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.264106][ T7016] RIP: 0033:0x4468e9 [ 67.267975][ T7016] Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.287551][ T7016] RSP: 002b:00007f4d36ce4db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 67.295933][ T7016] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004468e9 [ 67.303875][ T7016] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 67.311816][ T7016] RBP: 00000000006dbc20 R08: 00007f4d36ce5700 R09: 0000000000000000 [ 67.319757][ T7016] R10: 00007f4d36ce5700 R11: 0000000000000246 R12: 00000000006dbc2c [ 67.327698][ T7016] R13: 00007ffdab1934ff R14: 00007f4d36ce59c0 R15: 0000000000000000 [ 67.335653][ T7016] Modules linked in: [ 67.339581][ T7012] invalid opcode: 0000 [#5] PREEMPT SMP KASAN [ 67.345658][ T7012] CPU: 0 PID: 7012 Comm: syz-executor241 Tainted: G D 5.8.0-syzkaller #0 [ 67.355364][ T7012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.365428][ T7012] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.371229][ T7012] Code: e4 49 81 fe c0 ae 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 [ 67.390846][ T7012] RSP: 0018:ffffc90004297a70 EFLAGS: 00010282 [ 67.394903][ T6975] ---[ end trace 25c3aa3d1ab29247 ]--- [ 67.396901][ T7012] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.396910][ T7012] RDX: ffff88809ec96080 RSI: ffffffff815dbc57 RDI: fffff52000852eed [ 67.396917][ T7012] RBP: ffff88808f095500 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 67.396924][ T7012] R10: 0000000000000000 R11: 0000000031303754 R12: ffff8880a68d5dc0 [ 67.396931][ T7012] R13: ffff88808f09555c R14: 0000000020000000 R15: ffffc90004297ba8 [ 67.396942][ T7012] FS: 00007f4d36ce5700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 67.396950][ T7012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.396957][ T7012] CR2: 00007fbb7dac9000 CR3: 000000008f209000 CR4: 00000000001506f0 [ 67.396975][ T7012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.402495][ T6975] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.410370][ T7012] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.410375][ T7012] Call Trace: [ 67.410397][ T7012] do_huge_pmd_anonymous_page+0xaa1/0x2230 [ 67.410414][ T7012] handle_mm_fault+0x369d/0x4590 [ 67.410434][ T7012] ? apply_to_existing_page_range+0x40/0x40 executing program [ 67.418521][ T6975] Code: e4 49 81 fe c0 ae 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 [ 67.426390][ T7012] ? vmacache_update+0xce/0x140 [ 67.426406][ T7012] do_user_addr_fault+0x598/0xbf0 [ 67.426422][ T7012] ? trace_hardirqs_on_prepare+0x2e0/0x2e0 [ 67.426442][ T7012] exc_page_fault+0xa8/0x160 [ 67.434448][ T6975] RSP: 0018:ffffc90003effa70 EFLAGS: 00010282 [ 67.442347][ T7012] asm_exc_page_fault+0x1e/0x30 [ 67.442363][ T7012] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0 [ 67.442375][ T7012] 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 [ 67.442382][ T7012] RSP: 0018:ffffc90004297db0 EFLAGS: 00010203 [ 67.442392][ T7012] RAX: 0000000000000001 RBX: 0000000020000000 RCX: 0000000000000007 [ 67.442399][ T7012] RDX: 0000000000000007 RSI: ffff88808ea2b800 RDI: 0000000020000000 [ 67.442406][ T7012] RBP: ffff88808ea2b800 R08: 362020205b3e343c R09: ffff88808ea2b83e [ 67.442413][ T7012] R10: ffffed1011d45707 R11: 0000000000000000 R12: 000000000000003f [ 67.442419][ T7012] R13: 000000002000003f R14: 00007ffffffff000 R15: 0000000000000000 [ 67.442438][ T7012] _copy_to_user+0x11e/0x160 [ 67.442456][ T7012] do_syslog.part.0+0xf85/0x16c0 [ 67.451557][ T6975] RAX: 0000000000000363 RBX: 0000000000000003 RCX: 0000000000000000 [ 67.457982][ T7012] ? wake_up_klogd_work_func+0xf0/0xf0 [ 67.457998][ T7012] ? selinux_syslog+0xfa/0x2c0 [ 67.458009][ T7012] ? bpf_lsm_syslog+0x5/0x10 [ 67.458019][ T7012] ? security_syslog+0x73/0x90 [ 67.458032][ T7012] __x64_sys_syslog+0x97/0xc0 [ 67.458050][ T7012] do_syscall_64+0x2d/0x70 [ 67.466133][ T6975] RDX: ffff8880a070e280 RSI: ffffffff815dbc57 RDI: fffff520007dfeed [ 67.473983][ T7012] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.473993][ T7012] RIP: 0033:0x4468e9 [ 67.474011][ T7012] Code: e8 8c e7 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 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.479887][ T6975] RBP: ffff88809372e340 R08: 0000000000000363 R09: ffff8880ae6318e7 [ 67.487736][ T7012] RSP: 002b:00007f4d36ce4db8 EFLAGS: 00000246 ORIG_RAX: 0000000000000067 [ 67.487749][ T7012] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 00000000004468e9 [ 67.487756][ T7012] RDX: 00000000000000ce RSI: 0000000020000000 RDI: 0000000000000003 [ 67.487763][ T7012] RBP: 00000000006dbc20 R08: 00007f4d36ce5700 R09: 0000000000000000 [ 67.487770][ T7012] R10: 00007f4d36ce5700 R11: 0000000000000246 R12: 00000000006dbc2c [ 67.487777][ T7012] R13: 00007ffdab1934ff R14: 00007f4d36ce59c0 R15: 0000000000000000 [ 67.487793][ T7012] Modules linked in: [ 67.491121][ T6975] R10: 0000000000000000 R11: 0000000039393654 R12: ffff8880a195ce70 [ 67.561015][ T7012] ---[ end trace 25c3aa3d1ab29248 ]--- [ 67.575898][ T6996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.606791][ T7012] RIP: 0010:__khugepaged_enter+0x306/0x3d0 [ 67.614324][ T6996] Kernel panic - not syncing: Fatal exception [ 67.624492][ T7012] Code: e4 49 81 fe c0 ae 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 [ 67.628621][ T6996] Kernel Offset: disabled [ 67.844679][ T6996] Rebooting in 86400 seconds..