[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 28.515628] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 31.735686] random: sshd: uninitialized urandom read (32 bytes read) [ 32.203642] random: sshd: uninitialized urandom read (32 bytes read) [ 33.283471] random: sshd: uninitialized urandom read (32 bytes read) [ 33.485837] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. [ 39.021609] random: sshd: uninitialized urandom read (32 bytes read) 2018/05/14 19:41:24 parsed 1 programs 2018/05/14 19:41:24 executed programs: 0 [ 39.570398] IPVS: ftp: loaded support on port[0] = 21 [ 39.619588] FAULT_INJECTION: forcing a failure. [ 39.619588] name failslab, interval 1, probability 0, space 0, times 1 [ 39.630935] CPU: 1 PID: 4518 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 39.638139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.647486] Call Trace: [ 39.650097] dump_stack+0x185/0x1d0 [ 39.653728] should_fail+0x87b/0xab0 [ 39.657445] __should_failslab+0x278/0x2a0 [ 39.661693] should_failslab+0x29/0x70 [ 39.665577] kmem_cache_alloc+0x12e/0xb90 [ 39.669717] ? __msan_poison_alloca+0x15c/0x1d0 [ 39.674391] ? jbd2__journal_start+0x274/0xc90 [ 39.678978] ? __ext4_journal_start_sb+0x493/0x6f0 [ 39.683916] jbd2__journal_start+0x274/0xc90 [ 39.688321] ? rcu_all_qs+0x32/0x1f0 [ 39.692053] __ext4_journal_start_sb+0x493/0x6f0 [ 39.696824] ext4_alloc_file_blocks+0x5e4/0x1370 [ 39.701598] ext4_fallocate+0xe4b/0x3650 [ 39.705666] ? __msan_poison_alloca+0x15c/0x1d0 [ 39.710350] ? _cond_resched+0x3c/0xd0 [ 39.714237] ? rcu_all_qs+0x32/0x1f0 [ 39.717946] ? _cond_resched+0x3c/0xd0 [ 39.721836] ? __sb_start_write+0x9f/0x2d0 [ 39.726102] ? ext4_ext_truncate+0x3b0/0x3b0 [ 39.730514] vfs_fallocate+0x9dc/0xde0 [ 39.734436] __x64_sys_fallocate+0x199/0x290 [ 39.738863] do_syscall_64+0x154/0x220 [ 39.742757] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.747937] RIP: 0033:0x4559d9 [ 39.751121] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 39.758844] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 39.766125] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 39.773386] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 39.780649] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 39.787911] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 39.810854] FAULT_INJECTION: forcing a failure. [ 39.810854] name failslab, interval 1, probability 0, space 0, times 0 [ 39.822200] CPU: 1 PID: 4521 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 39.829385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.838728] Call Trace: [ 39.841325] dump_stack+0x185/0x1d0 [ 39.844959] should_fail+0x87b/0xab0 [ 39.848691] __should_failslab+0x278/0x2a0 [ 39.852941] should_failslab+0x29/0x70 [ 39.856835] __kmalloc+0xc5/0x350 [ 39.860295] ? ext4_find_extent+0x3dd/0x1290 [ 39.864702] ext4_find_extent+0x3dd/0x1290 [ 39.868954] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 39.873618] ext4_ext_map_blocks+0x659/0xcd20 [ 39.878119] ? kmsan_set_origin_inline+0x6b/0x120 [ 39.882965] ? __msan_poison_alloca+0x15c/0x1d0 [ 39.887633] ? jbd2__journal_start+0x51d/0xc90 [ 39.892240] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 39.897697] ? start_this_handle+0x2ce4/0x2fa0 [ 39.902314] ? kmsan_set_origin_inline+0x6b/0x120 [ 39.907158] ? __msan_poison_alloca+0x15c/0x1d0 [ 39.911832] ? rcu_all_qs+0x32/0x1f0 [ 39.915555] ? rcu_all_qs+0x32/0x1f0 [ 39.919291] ext4_map_blocks+0x1218/0x2bd0 [ 39.923535] ext4_alloc_file_blocks+0x6c9/0x1370 [ 39.928306] ext4_fallocate+0xe4b/0x3650 [ 39.932386] ? __msan_poison_alloca+0x15c/0x1d0 [ 39.937091] ? _cond_resched+0x3c/0xd0 [ 39.940986] ? rcu_all_qs+0x32/0x1f0 [ 39.944698] ? _cond_resched+0x3c/0xd0 [ 39.948586] ? __sb_start_write+0x9f/0x2d0 [ 39.952836] ? ext4_ext_truncate+0x3b0/0x3b0 [ 39.957251] vfs_fallocate+0x9dc/0xde0 [ 39.961148] __x64_sys_fallocate+0x199/0x290 [ 39.965557] do_syscall_64+0x154/0x220 [ 39.969445] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.974636] RIP: 0033:0x4559d9 [ 39.977818] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 39.985610] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 39.992869] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 40.000127] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 40.007400] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 40.014669] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 40.036896] FAULT_INJECTION: forcing a failure. [ 40.036896] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 40.048717] CPU: 1 PID: 4524 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 40.055879] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.065209] Call Trace: [ 40.067778] dump_stack+0x185/0x1d0 [ 40.071385] should_fail+0x87b/0xab0 [ 40.075079] __alloc_pages_nodemask+0x61c/0x5dd0 [ 40.079812] ? kernel_poison_pages+0x40/0x360 [ 40.084284] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 40.089625] ? kernel_poison_pages+0x1a0/0x360 [ 40.094184] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 40.099611] ? get_page_from_freelist+0xab28/0xb600 [ 40.104606] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 40.110049] kmsan_alloc_meta_for_pages+0x8d/0x3a0 [ 40.114958] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 40.120384] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.125202] ? __switch_to+0x2b3/0x420 [ 40.129067] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.133887] ? __alloc_pages_nodemask+0xb09/0x5dd0 [ 40.138796] kmsan_alloc_page+0x82/0xe0 [ 40.142749] __alloc_pages_nodemask+0xf8e/0x5dd0 [ 40.147482] ? workingset_activation+0x300/0x300 [ 40.152218] ? __radix_tree_replace+0xb88/0xc20 [ 40.156863] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.162204] ? memcg_check_events+0x74/0xe90 [ 40.166592] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.171933] ? mem_cgroup_charge_statistics+0x695/0xd90 [ 40.177273] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.182617] alloc_pages_current+0x6b5/0x970 [ 40.187009] __page_cache_alloc+0x95/0x320 [ 40.191231] pagecache_get_page+0x52b/0x1450 [ 40.195617] ? rcu_all_qs+0x32/0x1f0 [ 40.199306] ? ext4_mb_load_buddy_gfp+0x94e/0x1d00 [ 40.204212] ? ext4_mb_load_buddy_gfp+0x94e/0x1d00 [ 40.209117] ext4_mb_init_group+0x4ce/0xe90 [ 40.213415] ext4_mb_load_buddy_gfp+0x94e/0x1d00 [ 40.218147] ext4_mb_find_by_goal+0x4b6/0x18a0 [ 40.222705] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.227352] ext4_mb_regular_allocator+0x2a6/0x1fb0 [ 40.232343] ? __msan_metadata_ptr_for_store_2+0x13/0x20 [ 40.237767] ? ext4_mb_normalize_request+0x1b96/0x1f80 [ 40.243030] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 40.248378] ext4_mb_new_blocks+0x4a23/0x5230 [ 40.252850] ? kmsan_set_origin+0x9e/0x160 [ 40.257066] ext4_ext_map_blocks+0x6030/0xcd20 [ 40.261623] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.266269] ? jbd2__journal_start+0x51d/0xc90 [ 40.270828] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 40.276253] ? start_this_handle+0x2ce4/0x2fa0 [ 40.280817] ext4_map_blocks+0x1218/0x2bd0 [ 40.285044] ext4_alloc_file_blocks+0x6c9/0x1370 [ 40.289786] ext4_fallocate+0xe4b/0x3650 [ 40.293825] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.298471] ? _cond_resched+0x3c/0xd0 [ 40.302335] ? rcu_all_qs+0x32/0x1f0 [ 40.306031] ? _cond_resched+0x3c/0xd0 [ 40.309901] ? __sb_start_write+0x9f/0x2d0 [ 40.314113] ? ext4_ext_truncate+0x3b0/0x3b0 [ 40.318499] vfs_fallocate+0x9dc/0xde0 [ 40.322371] __x64_sys_fallocate+0x199/0x290 [ 40.326760] do_syscall_64+0x154/0x220 [ 40.330628] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.335792] RIP: 0033:0x4559d9 [ 40.338957] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 40.346639] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 40.353885] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 40.361130] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 40.368387] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 40.375634] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 40.386763] syz-executor0 (4524) used greatest stack depth: 54248 bytes left [ 40.404519] FAULT_INJECTION: forcing a failure. [ 40.404519] name failslab, interval 1, probability 0, space 0, times 0 [ 40.415883] CPU: 1 PID: 4526 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 40.423092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.432442] Call Trace: [ 40.435050] dump_stack+0x185/0x1d0 [ 40.438702] should_fail+0x87b/0xab0 [ 40.442424] __should_failslab+0x278/0x2a0 [ 40.446661] should_failslab+0x29/0x70 [ 40.450557] __kmalloc+0xc5/0x350 [ 40.454044] ? ext4_find_extent+0x3dd/0x1290 [ 40.458459] ext4_find_extent+0x3dd/0x1290 [ 40.462694] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 40.467359] ext4_ext_map_blocks+0x659/0xcd20 [ 40.471859] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.476703] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.481367] ? jbd2__journal_start+0x51d/0xc90 [ 40.485953] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 40.491406] ? start_this_handle+0x2ce4/0x2fa0 [ 40.495993] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.500854] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.505549] ? rcu_all_qs+0x32/0x1f0 [ 40.509272] ? rcu_all_qs+0x32/0x1f0 [ 40.513011] ext4_map_blocks+0x1218/0x2bd0 [ 40.517265] ext4_alloc_file_blocks+0x6c9/0x1370 [ 40.522076] ext4_fallocate+0xe4b/0x3650 [ 40.526154] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.530849] ? _cond_resched+0x3c/0xd0 [ 40.534746] ? rcu_all_qs+0x32/0x1f0 [ 40.538460] ? _cond_resched+0x3c/0xd0 [ 40.542351] ? __sb_start_write+0x9f/0x2d0 [ 40.546605] ? ext4_ext_truncate+0x3b0/0x3b0 [ 40.551022] vfs_fallocate+0x9dc/0xde0 [ 40.554930] __x64_sys_fallocate+0x199/0x290 [ 40.559337] do_syscall_64+0x154/0x220 [ 40.563226] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.568408] RIP: 0033:0x4559d9 [ 40.571585] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 40.579291] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 40.586555] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 40.593822] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 40.601083] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 40.608342] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 40.632588] FAULT_INJECTION: forcing a failure. [ 40.632588] name failslab, interval 1, probability 0, space 0, times 0 [ 40.644555] CPU: 0 PID: 4530 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 40.651741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.661084] Call Trace: [ 40.663677] dump_stack+0x185/0x1d0 [ 40.667306] should_fail+0x87b/0xab0 [ 40.671047] __should_failslab+0x278/0x2a0 [ 40.675284] should_failslab+0x29/0x70 [ 40.679179] __kmalloc+0xc5/0x350 [ 40.682627] ? ext4_find_extent+0x3dd/0x1290 [ 40.687047] ext4_find_extent+0x3dd/0x1290 [ 40.691295] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 40.695960] ext4_ext_map_blocks+0x659/0xcd20 [ 40.700469] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.705313] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.709989] ? jbd2__journal_start+0x51d/0xc90 [ 40.714591] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 40.720067] ? start_this_handle+0x2ce4/0x2fa0 [ 40.724661] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.729494] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.734167] ? rcu_all_qs+0x32/0x1f0 [ 40.737890] ? rcu_all_qs+0x32/0x1f0 [ 40.741621] ext4_map_blocks+0x1218/0x2bd0 [ 40.745859] ext4_alloc_file_blocks+0x6c9/0x1370 [ 40.750630] ext4_fallocate+0xe4b/0x3650 [ 40.754700] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.759380] ? _cond_resched+0x3c/0xd0 [ 40.763266] ? rcu_all_qs+0x32/0x1f0 [ 40.766972] ? _cond_resched+0x3c/0xd0 [ 40.770862] ? __sb_start_write+0x9f/0x2d0 [ 40.775111] ? ext4_ext_truncate+0x3b0/0x3b0 [ 40.779518] vfs_fallocate+0x9dc/0xde0 [ 40.783432] __x64_sys_fallocate+0x199/0x290 [ 40.787856] do_syscall_64+0x154/0x220 [ 40.791746] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 40.796924] RIP: 0033:0x4559d9 [ 40.800107] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 40.807823] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 40.815090] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 40.822349] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 40.829616] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 40.836876] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 40.858916] FAULT_INJECTION: forcing a failure. [ 40.858916] name failslab, interval 1, probability 0, space 0, times 0 [ 40.870233] CPU: 0 PID: 4533 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 40.877414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.886756] Call Trace: [ 40.889346] dump_stack+0x185/0x1d0 [ 40.892971] should_fail+0x87b/0xab0 [ 40.896694] __should_failslab+0x278/0x2a0 [ 40.900932] should_failslab+0x29/0x70 [ 40.904827] __kmalloc+0xc5/0x350 [ 40.908285] ? ext4_find_extent+0x3dd/0x1290 [ 40.912702] ext4_find_extent+0x3dd/0x1290 [ 40.916948] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 40.921610] ext4_ext_map_blocks+0x659/0xcd20 [ 40.926115] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.930972] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.935641] ? jbd2__journal_start+0x51d/0xc90 [ 40.940229] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 40.945680] ? start_this_handle+0x2ce4/0x2fa0 [ 40.950263] ? kmsan_set_origin_inline+0x6b/0x120 [ 40.955097] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.959768] ? rcu_all_qs+0x32/0x1f0 [ 40.963490] ? rcu_all_qs+0x32/0x1f0 [ 40.967230] ext4_map_blocks+0x1218/0x2bd0 [ 40.971492] ext4_alloc_file_blocks+0x6c9/0x1370 [ 40.976268] ext4_fallocate+0xe4b/0x3650 [ 40.980338] ? __msan_poison_alloca+0x15c/0x1d0 [ 40.985047] ? _cond_resched+0x3c/0xd0 [ 40.988942] ? rcu_all_qs+0x32/0x1f0 [ 40.992651] ? _cond_resched+0x3c/0xd0 [ 40.996547] ? __sb_start_write+0x9f/0x2d0 [ 41.000795] ? ext4_ext_truncate+0x3b0/0x3b0 [ 41.005199] vfs_fallocate+0x9dc/0xde0 [ 41.009095] __x64_sys_fallocate+0x199/0x290 [ 41.013501] do_syscall_64+0x154/0x220 [ 41.017386] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.022568] RIP: 0033:0x4559d9 [ 41.025744] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 41.033457] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 41.040719] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 41.047982] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 41.055248] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 41.062516] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 41.094957] FAULT_INJECTION: forcing a failure. [ 41.094957] name failslab, interval 1, probability 0, space 0, times 0 [ 41.106303] CPU: 0 PID: 4537 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 41.113493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.122835] Call Trace: [ 41.125429] dump_stack+0x185/0x1d0 [ 41.129075] should_fail+0x87b/0xab0 [ 41.132796] __should_failslab+0x278/0x2a0 [ 41.137059] should_failslab+0x29/0x70 [ 41.140946] kmem_cache_alloc+0x12e/0xb90 [ 41.145090] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.149766] ? jbd2__journal_start+0x274/0xc90 [ 41.154363] ? __ext4_journal_start_sb+0x493/0x6f0 [ 41.159301] jbd2__journal_start+0x274/0xc90 [ 41.163710] ? rcu_all_qs+0x32/0x1f0 [ 41.167423] __ext4_journal_start_sb+0x493/0x6f0 [ 41.172188] ext4_alloc_file_blocks+0x5e4/0x1370 [ 41.176978] ext4_fallocate+0xe4b/0x3650 [ 41.181062] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.185746] ? _cond_resched+0x3c/0xd0 [ 41.189646] ? rcu_all_qs+0x32/0x1f0 [ 41.193357] ? _cond_resched+0x3c/0xd0 [ 41.197256] ? __sb_start_write+0x9f/0x2d0 [ 41.201505] ? ext4_ext_truncate+0x3b0/0x3b0 [ 41.205921] vfs_fallocate+0x9dc/0xde0 [ 41.209822] __x64_sys_fallocate+0x199/0x290 [ 41.214230] do_syscall_64+0x154/0x220 [ 41.218119] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.223297] RIP: 0033:0x4559d9 [ 41.226474] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 41.234176] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 41.241435] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 41.248693] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 41.255956] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 41.263218] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 41.284993] FAULT_INJECTION: forcing a failure. [ 41.284993] name failslab, interval 1, probability 0, space 0, times 0 [ 41.296364] CPU: 0 PID: 4540 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 41.303546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.312888] Call Trace: [ 41.315494] dump_stack+0x185/0x1d0 [ 41.319127] should_fail+0x87b/0xab0 [ 41.322844] __should_failslab+0x278/0x2a0 [ 41.327081] should_failslab+0x29/0x70 [ 41.330982] __kmalloc+0xc5/0x350 [ 41.334451] ? ext4_find_extent+0x3dd/0x1290 [ 41.338856] ext4_find_extent+0x3dd/0x1290 [ 41.343099] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 41.347761] ext4_ext_map_blocks+0x659/0xcd20 [ 41.352259] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.357103] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.361768] ? jbd2__journal_start+0x51d/0xc90 [ 41.366358] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 41.371829] ? start_this_handle+0x2ce4/0x2fa0 [ 41.376426] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.381263] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.385937] ? rcu_all_qs+0x32/0x1f0 [ 41.389663] ? rcu_all_qs+0x32/0x1f0 [ 41.393393] ext4_map_blocks+0x1218/0x2bd0 [ 41.397636] ext4_alloc_file_blocks+0x6c9/0x1370 [ 41.402417] ext4_fallocate+0xe4b/0x3650 [ 41.406480] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.411165] ? _cond_resched+0x3c/0xd0 [ 41.415056] ? rcu_all_qs+0x32/0x1f0 [ 41.418762] ? _cond_resched+0x3c/0xd0 [ 41.422648] ? __sb_start_write+0x9f/0x2d0 [ 41.426884] ? ext4_ext_truncate+0x3b0/0x3b0 [ 41.431290] vfs_fallocate+0x9dc/0xde0 [ 41.435206] __x64_sys_fallocate+0x199/0x290 [ 41.439631] do_syscall_64+0x154/0x220 [ 41.443523] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.448704] RIP: 0033:0x4559d9 [ 41.451882] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 41.459599] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 41.466875] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 41.474154] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 41.481413] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 41.488672] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 41.510817] FAULT_INJECTION: forcing a failure. [ 41.510817] name failslab, interval 1, probability 0, space 0, times 0 [ 41.522217] CPU: 0 PID: 4543 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 41.529403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.538751] Call Trace: [ 41.541360] dump_stack+0x185/0x1d0 [ 41.544999] should_fail+0x87b/0xab0 [ 41.548740] __should_failslab+0x278/0x2a0 [ 41.552977] should_failslab+0x29/0x70 [ 41.556880] __kmalloc+0xc5/0x350 [ 41.560339] ? ext4_find_extent+0x3dd/0x1290 [ 41.564744] ext4_find_extent+0x3dd/0x1290 [ 41.568989] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 41.573662] ext4_ext_map_blocks+0x659/0xcd20 [ 41.578159] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.583006] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.587697] ? jbd2__journal_start+0x51d/0xc90 [ 41.592297] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 41.597754] ? start_this_handle+0x2ce4/0x2fa0 [ 41.602339] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.607173] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.611846] ? rcu_all_qs+0x32/0x1f0 [ 41.615573] ? rcu_all_qs+0x32/0x1f0 [ 41.619303] ext4_map_blocks+0x1218/0x2bd0 [ 41.623546] ext4_alloc_file_blocks+0x6c9/0x1370 [ 41.628318] ext4_fallocate+0xe4b/0x3650 [ 41.632381] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.637077] ? _cond_resched+0x3c/0xd0 [ 41.640971] ? rcu_all_qs+0x32/0x1f0 [ 41.644694] ? _cond_resched+0x3c/0xd0 [ 41.648580] ? __sb_start_write+0x9f/0x2d0 [ 41.652819] ? ext4_ext_truncate+0x3b0/0x3b0 [ 41.657225] vfs_fallocate+0x9dc/0xde0 [ 41.661125] __x64_sys_fallocate+0x199/0x290 [ 41.665533] do_syscall_64+0x154/0x220 [ 41.669417] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.674594] RIP: 0033:0x4559d9 [ 41.677774] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 41.685491] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 41.692761] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 41.700034] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 41.707301] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 41.714561] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 41.736308] FAULT_INJECTION: forcing a failure. [ 41.736308] name failslab, interval 1, probability 0, space 0, times 0 [ 41.747671] CPU: 0 PID: 4546 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 41.754851] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.764193] Call Trace: [ 41.766791] dump_stack+0x185/0x1d0 [ 41.770423] should_fail+0x87b/0xab0 [ 41.774152] __should_failslab+0x278/0x2a0 [ 41.778392] should_failslab+0x29/0x70 [ 41.782306] __kmalloc+0xc5/0x350 [ 41.785769] ? ext4_find_extent+0x3dd/0x1290 [ 41.790174] ext4_find_extent+0x3dd/0x1290 [ 41.794417] ? ext4_ext_map_blocks+0x27e/0xcd20 [ 41.799088] ext4_ext_map_blocks+0x659/0xcd20 [ 41.803589] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.808432] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.813097] ? jbd2__journal_start+0x51d/0xc90 [ 41.817693] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 41.823149] ? start_this_handle+0x2ce4/0x2fa0 [ 41.827739] ? kmsan_set_origin_inline+0x6b/0x120 [ 41.832578] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.837253] ? rcu_all_qs+0x32/0x1f0 [ 41.840974] ? rcu_all_qs+0x32/0x1f0 [ 41.844716] ext4_map_blocks+0x1218/0x2bd0 [ 41.848966] ext4_alloc_file_blocks+0x6c9/0x1370 [ 41.853741] ext4_fallocate+0xe4b/0x3650 [ 41.857825] ? __msan_poison_alloca+0x15c/0x1d0 [ 41.862523] ? _cond_resched+0x3c/0xd0 [ 41.866411] ? rcu_all_qs+0x32/0x1f0 [ 41.870119] ? _cond_resched+0x3c/0xd0 [ 41.874037] ? __sb_start_write+0x9f/0x2d0 [ 41.878285] ? ext4_ext_truncate+0x3b0/0x3b0 [ 41.882689] vfs_fallocate+0x9dc/0xde0 [ 41.886585] __x64_sys_fallocate+0x199/0x290 [ 41.890992] do_syscall_64+0x154/0x220 [ 41.894892] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.900080] RIP: 0033:0x4559d9 [ 41.903259] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 41.910965] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 41.918226] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 41.925487] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 41.932756] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 41.940031] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 41.963544] FAULT_INJECTION: forcing a failure. [ 41.963544] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 41.975380] CPU: 1 PID: 4549 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 41.982542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.991871] Call Trace: [ 41.994438] dump_stack+0x185/0x1d0 [ 41.998055] should_fail+0x87b/0xab0 [ 42.001751] __alloc_pages_nodemask+0x61c/0x5dd0 [ 42.006484] ? kernel_poison_pages+0x40/0x360 [ 42.010960] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 42.016300] ? kernel_poison_pages+0x1a0/0x360 [ 42.020872] ? __msan_metadata_ptr_for_store_8+0x13/0x20 [ 42.026299] ? get_page_from_freelist+0xab28/0xb600 [ 42.031299] kmsan_alloc_meta_for_pages+0x10c/0x3a0 [ 42.036296] ? kmsan_set_origin_inline+0x6b/0x120 [ 42.041114] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.045762] kmsan_alloc_page+0x82/0xe0 [ 42.049715] __alloc_pages_nodemask+0xf8e/0x5dd0 [ 42.054446] ? __msan_metadata_ptr_for_store_1+0x13/0x20 [ 42.059874] ? __save_stack_trace+0x90d/0xb00 [ 42.064349] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.069692] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 42.075039] ? radix_tree_lookup_slot+0x469/0x500 [ 42.079871] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 42.085212] alloc_pages_current+0x6b5/0x970 [ 42.089608] __page_cache_alloc+0x95/0x320 [ 42.093821] ? __find_get_block+0xc8/0x1980 [ 42.098120] pagecache_get_page+0x52b/0x1450 [ 42.102510] __getblk_gfp+0x59f/0x1620 [ 42.106373] ? workingset_activation+0x300/0x300 [ 42.111108] ext4_read_block_bitmap_nowait+0x4eb/0x3ec0 [ 42.116449] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 42.121793] ext4_mb_init_cache+0x7a6/0x2970 [ 42.126179] ? add_to_page_cache_lru+0x52e/0x610 [ 42.130915] ext4_mb_init_group+0x792/0xe90 [ 42.135222] ext4_mb_load_buddy_gfp+0x94e/0x1d00 [ 42.139958] ext4_mb_find_by_goal+0x4b6/0x18a0 [ 42.144520] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.149166] ext4_mb_regular_allocator+0x2a6/0x1fb0 [ 42.154159] ? __msan_metadata_ptr_for_store_2+0x13/0x20 [ 42.159585] ? ext4_mb_normalize_request+0x1b96/0x1f80 [ 42.164838] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 42.170180] ext4_mb_new_blocks+0x4a23/0x5230 [ 42.174661] ? kmsan_set_origin+0x9e/0x160 [ 42.178878] ext4_ext_map_blocks+0x6030/0xcd20 [ 42.183438] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.188083] ? jbd2__journal_start+0x51d/0xc90 [ 42.192640] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 42.198067] ? start_this_handle+0x2ce4/0x2fa0 [ 42.202632] ext4_map_blocks+0x1218/0x2bd0 [ 42.206846] ext4_alloc_file_blocks+0x6c9/0x1370 [ 42.211582] ext4_fallocate+0xe4b/0x3650 [ 42.215622] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.220267] ? _cond_resched+0x3c/0xd0 [ 42.224130] ? rcu_all_qs+0x32/0x1f0 [ 42.227817] ? _cond_resched+0x3c/0xd0 [ 42.231679] ? __sb_start_write+0x9f/0x2d0 [ 42.235891] ? ext4_ext_truncate+0x3b0/0x3b0 [ 42.240276] vfs_fallocate+0x9dc/0xde0 [ 42.244141] __x64_sys_fallocate+0x199/0x290 [ 42.248534] do_syscall_64+0x154/0x220 [ 42.252401] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.257566] RIP: 0033:0x4559d9 [ 42.260733] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 42.268417] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 42.275664] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 42.282911] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 42.290166] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 42.297410] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 42.305017] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 [ 42.313034] PGD 80000001ab0d9067 P4D 80000001ab0d9067 PUD 1c8fba067 PMD 0 [ 42.320111] Oops: 0000 [#1] SMP PTI [ 42.323730] Dumping ftrace buffer: [ 42.327255] (ftrace buffer empty) [ 42.330954] Modules linked in: [ 42.334168] CPU: 1 PID: 4549 Comm: syz-executor0 Not tainted 4.17.0-rc3+ #92 [ 42.341343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.350711] RIP: 0010:__getblk_gfp+0x5bf/0x1620 [ 42.355368] RSP: 0018:ffff88019e72eb58 EFLAGS: 00010246 [ 42.360727] RAX: 0000000000000000 RBX: 0000000000000020 RCX: 0000000000000000 [ 42.367990] RDX: ffff880197574358 RSI: 0000000000000000 RDI: ffffea0000000000 [ 42.375260] RBP: ffff88019e72eca0 R08: 0000000001080000 R09: 0000000000000000 [ 42.382523] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 42.389785] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801db428f50 [ 42.397057] FS: 00007f848098a700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 42.405275] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.411159] CR2: 0000000000000020 CR3: 00000001ad11c000 CR4: 00000000001406e0 [ 42.418434] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.425700] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.432960] Call Trace: [ 42.435561] ? workingset_activation+0x300/0x300 [ 42.440339] ext4_read_block_bitmap_nowait+0x4eb/0x3ec0 [ 42.445710] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 42.451092] ext4_mb_init_cache+0x7a6/0x2970 [ 42.455511] ? add_to_page_cache_lru+0x52e/0x610 [ 42.460290] ext4_mb_init_group+0x792/0xe90 [ 42.464644] ext4_mb_load_buddy_gfp+0x94e/0x1d00 [ 42.469417] ext4_mb_find_by_goal+0x4b6/0x18a0 [ 42.474019] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.478703] ext4_mb_regular_allocator+0x2a6/0x1fb0 [ 42.483747] ? __msan_metadata_ptr_for_store_2+0x13/0x20 [ 42.489207] ? ext4_mb_normalize_request+0x1b96/0x1f80 [ 42.494480] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 42.499863] ext4_mb_new_blocks+0x4a23/0x5230 [ 42.504374] ? kmsan_set_origin+0x9e/0x160 [ 42.508629] ext4_ext_map_blocks+0x6030/0xcd20 [ 42.513227] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.517894] ? jbd2__journal_start+0x51d/0xc90 [ 42.522487] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 42.527948] ? start_this_handle+0x2ce4/0x2fa0 [ 42.532570] ext4_map_blocks+0x1218/0x2bd0 [ 42.536816] ext4_alloc_file_blocks+0x6c9/0x1370 [ 42.541594] ext4_fallocate+0xe4b/0x3650 [ 42.545671] ? __msan_poison_alloca+0x15c/0x1d0 [ 42.550360] ? _cond_resched+0x3c/0xd0 [ 42.554250] ? rcu_all_qs+0x32/0x1f0 [ 42.557960] ? _cond_resched+0x3c/0xd0 [ 42.561878] ? __sb_start_write+0x9f/0x2d0 [ 42.566142] ? ext4_ext_truncate+0x3b0/0x3b0 [ 42.570580] vfs_fallocate+0x9dc/0xde0 [ 42.574496] __x64_sys_fallocate+0x199/0x290 [ 42.578912] do_syscall_64+0x154/0x220 [ 42.582798] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.587977] RIP: 0033:0x4559d9 [ 42.591168] RSP: 002b:00007f8480989c68 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 42.598893] RAX: ffffffffffffffda RBX: 00007f848098a6d4 RCX: 00000000004559d9 [ 42.606153] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 [ 42.613414] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 42.620688] R10: 0000010000000001 R11: 0000000000000246 R12: 0000000000000004 [ 42.627963] R13: 000000000000007e R14: 00000000006f4c70 R15: 0000000000000016 [ 42.635240] Code: ff ff ff 44 89 e9 e8 31 a0 ad ff 49 89 c6 4c 8b ab 20 03 00 00 8b 83 a8 0f 00 00 89 45 d0 49 8d 5e 20 4d 85 ed 0f 85 31 01 00 00 <4d> 8b 7e 20 48 89 9d e0 fe ff ff 48 89 df e8 9e 41 dc ff 48 8b [ 42.654607] RIP: __getblk_gfp+0x5bf/0x1620 RSP: ffff88019e72eb58 [ 42.660747] CR2: 0000000000000020 [ 42.664310] ---[ end trace c9b14be29c854b28 ]--- [ 42.669141] Kernel panic - not syncing: Fatal exception [ 42.675005] Dumping ftrace buffer: [ 42.678538] (ftrace buffer empty) [ 42.682231] Kernel Offset: disabled [ 42.685849] Rebooting in 86400 seconds..