RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 ====================================================== IPv6: ADDRCONF(NETDEV_UP): veth0_vlan: link is not ready WARNING: possible circular locking dependency detected IPv6: ADDRCONF(NETDEV_UP): vlan0: link is not ready 4.14.174-syzkaller #0 Not tainted IPv6: ADDRCONF(NETDEV_UP): vlan1: link is not ready ------------------------------------------------------ IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready kworker/0:1/24 is trying to acquire lock: ( device veth0_vlan entered promiscuous mode &sb->s_type->i_mutex_key#9){+.+.}, at: [] inode_lock include/linux/fs.h:718 [inline] &sb->s_type->i_mutex_key#9){+.+.}, at: [] __generic_file_fsync+0x9e/0x190 fs/libfs.c:985 device veth1_vlan entered promiscuous mode but task is already holding lock: ((&dio->complete_work)){+.+.}, at: [] process_one_work+0x761/0x1540 kernel/workqueue.c:2091 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 ((&dio->complete_work)){+.+.}: process_one_work+0x7b5/0x1540 kernel/workqueue.c:2092 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 -> #1 ("dio/%s"sb->s_id){+.+.}: flush_workqueue+0x109/0x13f0 kernel/workqueue.c:2624 drain_workqueue+0x177/0x3e0 kernel/workqueue.c:2789 destroy_workqueue+0x71/0x660 kernel/workqueue.c:4102 __alloc_workqueue_key+0xb94/0xec0 kernel/workqueue.c:4079 IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready sb_init_dio_done_wq+0x34/0x80 fs/direct-io.c:624 do_blockdev_direct_IO+0x3842/0x9120 fs/direct-io.c:1286 IPv6: ADDRCONF(NETDEV_UP): veth0_macvtap: link is not ready ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 IPv6: ADDRCONF(NETDEV_UP): veth1_macvtap: link is not ready generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 device veth0_macvtap entered promiscuous mode entry_SYSCALL_64_after_hwframe+0x42/0xb7 IPv6: ADDRCONF(NETDEV_UP): macvtap0: link is not ready -> #0 (&sb->s_type->i_mutex_key#9){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3994 down_write+0x34/0x90 kernel/locking/rwsem.c:54 inode_lock include/linux/fs.h:718 [inline] __generic_file_fsync+0x9e/0x190 fs/libfs.c:985 ext4_sync_file+0x757/0x12c0 fs/ext4/fsync.c:120 device veth1_macvtap entered promiscuous mode vfs_fsync_range+0x103/0x250 fs/sync.c:196 IPv6: ADDRCONF(NETDEV_UP): macsec0: link is not ready generic_write_sync include/linux/fs.h:2677 [inline] dio_complete+0x37d/0x840 fs/direct-io.c:330 process_one_work+0x813/0x1540 kernel/workqueue.c:2116 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 other info that might help us debug this: IPv6: ADDRCONF(NETDEV_UP): veth0_to_batadv: link is not ready Chain exists of: IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready &sb->s_type->i_mutex_key batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 #9 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! --> batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 "dio/%s"sb->s_id --> batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! (&dio->complete_work) batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! Possible unsafe locking scenario: CPU0 CPU1 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 ---- ---- lock( batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! (&dio->complete_work) IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready ); batman_adv: batadv0: Interface activated: batadv_slave_0 lock( batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 "dio/%s"sb->s_id batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! ); lock((&dio->complete_work)); lock(&sb->s_type->i_mutex_key#9); *** DEADLOCK *** 2 locks held by kworker/0:1/24: #0: ("dio/%s"sb->s_id){+.+.}, at: [] work_static include/linux/workqueue.h:199 [inline] #0: ("dio/%s"sb->s_id){+.+.}, at: [] set_work_data kernel/workqueue.c:619 [inline] #0: ("dio/%s"sb->s_id){+.+.}, at: [] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline] #0: ("dio/%s"sb->s_id){+.+.}, at: [] process_one_work+0x727/0x1540 kernel/workqueue.c:2087 #1: ((&dio->complete_work) batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 ){+.+.}, at: [] process_one_work+0x761/0x1540 kernel/workqueue.c:2091 stack backtrace: CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: dio/sda1 dio_aio_complete_work batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x1c4/0x282 kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3994 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! down_write+0x34/0x90 kernel/locking/rwsem.c:54 inode_lock include/linux/fs.h:718 [inline] __generic_file_fsync+0x9e/0x190 fs/libfs.c:985 ext4_sync_file+0x757/0x12c0 fs/ext4/fsync.c:120 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 vfs_fsync_range+0x103/0x250 fs/sync.c:196 generic_write_sync include/linux/fs.h:2677 [inline] dio_complete+0x37d/0x840 fs/direct-io.c:330 process_one_work+0x813/0x1540 kernel/workqueue.c:2116 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250 IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404 batman_adv: batadv0: Interface activated: batadv_slave_1 IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_batadv: link is not ready FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 CPU: 1 PID: 7878 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 should_failslab+0xd6/0x130 mm/failslab.c:32 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a40dc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a40e6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_0: link is not ready batman_adv: batadv0: Interface activated: batadv_slave_0 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! IPv6: ADDRCONF(NETDEV_UP): batadv_slave_1: link is not ready FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 batman_adv: batadv0: Interface activated: batadv_slave_1 CPU: 1 PID: 7900 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2b5/0x770 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] ext4_init_io_end+0x23/0x100 fs/ext4/page-io.c:253 ext4_dio_get_block_unwritten_async+0x102/0x1c0 fs/ext4/inode.c:905 get_more_blocks fs/direct-io.c:718 [inline] do_direct_IO fs/direct-io.c:1003 [inline] do_blockdev_direct_IO+0x1f58/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a40dc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a40e6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3eb000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7914 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc80a678c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc80a6796d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc80a656000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 7943 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a3ecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a3ed6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 7961 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc80a678c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc80a6796d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc80a656000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 7972 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 mempool_alloc+0x111/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x352/0x640 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a3ecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a3ed6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 7986 Comm: syz-executor.5 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f24c9d26c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f24c9d276d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007f24c9d04000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 7996 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fd3b57f4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fd3b57f56d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fd3b57d2000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8003 Comm: syz-executor.2 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc25b04ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc25b04f6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc25b02c000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8016 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2b5/0x770 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] ext4_init_io_end+0x23/0x100 fs/ext4/page-io.c:253 ext4_dio_get_block_unwritten_async+0x102/0x1c0 fs/ext4/inode.c:905 get_more_blocks fs/direct-io.c:718 [inline] do_direct_IO fs/direct-io.c:1003 [inline] do_blockdev_direct_IO+0x1f58/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fb45b410c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fb45b4116d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fb45b3ee000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8020 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc80a678c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc80a6796d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc80a656000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8041 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a3ecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a3ed6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 1 PID: 8047 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fb45b3efc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fb45b3f06d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fb45b3cd000 RBP: 000000000076c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8044 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fd3b57f4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fd3b57f56d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fd3b57d2000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8043 Comm: syz-executor.5 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f24c9d05c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f24c9d066d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007f24c9ce3000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8065 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 ext4_es_alloc_extent fs/ext4/extents_status.c:334 [inline] __es_insert_extent+0x241/0xe20 fs/ext4/extents_status.c:673 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ext4_es_insert_extent+0x1b9/0x530 fs/ext4/extents_status.c:727 ext4_map_blocks+0x9f6/0x1610 fs/ext4/inode.c:715 _ext4_get_block+0x187/0x480 fs/ext4/inode.c:797 ext4_get_block_trans+0x143/0x220 fs/ext4/inode.c:858 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ext4_dio_get_block_unwritten_async+0x69/0x1c0 fs/ext4/inode.c:891 get_more_blocks fs/direct-io.c:718 [inline] do_direct_IO fs/direct-io.c:1003 [inline] do_blockdev_direct_IO+0x1f58/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fd3b5815c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fd3b58166d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fd3b57f3000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8092 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 mempool_alloc+0x111/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x352/0x640 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc80a657c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc80a6586d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc80a635000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 1 PID: 8096 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a3ecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a3ed6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 1 PID: 8063 Comm: syz-executor.5 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f24c9d26c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f24c9d276d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007f24c9d04000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8097 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x2b5/0x770 mm/slab.c:3550 kmem_cache_zalloc include/linux/slab.h:651 [inline] ext4_init_io_end+0x23/0x100 fs/ext4/page-io.c:253 ext4_dio_get_block_unwritten_async+0x102/0x1c0 fs/ext4/inode.c:905 get_more_blocks fs/direct-io.c:718 [inline] do_direct_IO fs/direct-io.c:1003 [inline] do_blockdev_direct_IO+0x1f58/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fb45b410c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fb45b4116d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fb45b3ee000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8117 Comm: syz-executor.0 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 mempool_alloc+0x111/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x352/0x640 block/bio.c:486 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc80a678c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc80a6796d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc80a656000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8116 Comm: syz-executor.2 Not tainted 4.14.174-syzkaller #0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 mempool_alloc+0x111/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x352/0x640 block/bio.c:486 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fc25b04ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fc25b04f6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fc25b02c000 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 1 PID: 8148 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fcd6a3ecc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fcd6a3ed6d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fcd6a3ca000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8144 Comm: syz-executor.5 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007f24c9ce4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f24c9ce56d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007f24c9cc2000 RBP: 000000000076c040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 1 PID: 8146 Comm: syz-executor.1 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c849 RSP: 002b:00007fd3b57f4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007fd3b57f56d4 RCX: 000000000045c849 RDX: 0000000020000540 RSI: 0000000000000006 RDI: 00007fd3b57d2000 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008 R13: 00000000000001f9 R14: 00000000004c422b R15: 0000000000000009 CPU: 0 PID: 8149 Comm: syz-executor.4 Not tainted 4.14.174-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x13e/0x194 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x14b lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x44/0x770 mm/slab.c:3550 bvec_alloc+0x13c/0x2d0 block/bio.c:232 bio_alloc_bioset+0x3fa/0x640 block/bio.c:506 bio_alloc include/linux/bio.h:422 [inline] dio_bio_alloc fs/direct-io.c:439 [inline] dio_new_bio fs/direct-io.c:745 [inline] dio_send_cur_page fs/direct-io.c:820 [inline] submit_page_section fs/direct-io.c:883 [inline] do_direct_IO fs/direct-io.c:1097 [inline] do_blockdev_direct_IO+0x166c/0x9120 fs/direct-io.c:1336 ext4_direct_IO_write fs/ext4/inode.c:3712 [inline] ext4_direct_IO+0x7cf/0x1980 fs/ext4/inode.c:3848 generic_file_direct_write+0x1df/0x420 mm/filemap.c:2950 __generic_file_write_iter+0x2a5/0x590 mm/filemap.c:3129 ext4_file_write_iter+0x808/0xdc0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1777 [inline] aio_write+0x2c7/0x4f0 fs/aio.c:1553 io_submit_one fs/aio.c:1641 [inline] do_io_submit+0x996/0x13f0 fs/aio.c:1709