======================================================
WARNING: possible circular locking dependency detected
4.19.211-syzkaller #0 Not tainted
------------------------------------------------------
kworker/0:4/8183 is trying to acquire lock:
0000000032f09a9b (&sb->s_type->i_mutex_key#10){++++}, at: inode_lock include/linux/fs.h:748 [inline]
0000000032f09a9b (&sb->s_type->i_mutex_key#10){++++}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989

but task is already holding lock:
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
0000000026fcde4e ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 ((work_completion)(&dio->complete_work)){+.+.}:
       worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
       kthread+0x33f/0x460 kernel/kthread.c:259
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

-> #1 ((wq_completion)"dio/%s"sb->s_id){+.+.}:
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
       drain_workqueue+0x1a5/0x460 kernel/workqueue.c:2826
       destroy_workqueue+0x75/0x790 kernel/workqueue.c:4183
       __alloc_workqueue_key+0xb76/0xed0 kernel/workqueue.c:4160
       sb_init_dio_done_wq+0x34/0x90 fs/direct-io.c:623
       dio_set_defer_completion fs/direct-io.c:646 [inline]
       get_more_blocks fs/direct-io.c:724 [inline]
       do_direct_IO fs/direct-io.c:1003 [inline]
       do_blockdev_direct_IO fs/direct-io.c:1333 [inline]
       __blockdev_direct_IO+0x83a8/0xef40 fs/direct-io.c:1419
       ext4_direct_IO_write fs/ext4/inode.c:3777 [inline]
       ext4_direct_IO+0xae4/0x1c50 fs/ext4/inode.c:3915
       generic_file_direct_write+0x208/0x4a0 mm/filemap.c:3073
       __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
       ext4_file_write_iter+0x2fe/0xf20 fs/ext4/file.c:272
       call_write_iter include/linux/fs.h:1821 [inline]
       aio_write+0x37f/0x5c0 fs/aio.c:1574
       __io_submit_one fs/aio.c:1858 [inline]
       io_submit_one+0xecd/0x20c0 fs/aio.c:1909
       __do_sys_io_submit fs/aio.c:1953 [inline]
       __se_sys_io_submit+0x11b/0x4a0 fs/aio.c:1924
       do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
       entry_SYSCALL_64_after_hwframe+0x49/0xbe

-> #0 (&sb->s_type->i_mutex_key#10){++++}:
       down_write+0x34/0x90 kernel/locking/rwsem.c:70
       inode_lock include/linux/fs.h:748 [inline]
       __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989
       ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118
       vfs_fsync_range+0x13a/0x220 fs/sync.c:197
       generic_write_sync include/linux/fs.h:2750 [inline]
       dio_complete+0x763/0xac0 fs/direct-io.c:329
       process_one_work+0x864/0x1570 kernel/workqueue.c:2153
       worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
       kthread+0x33f/0x460 kernel/kthread.c:259
       ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

other info that might help us debug this:

Chain exists of:
  &sb->s_type->i_mutex_key#10 --> (wq_completion)"dio/%s"sb->s_id --> (work_completion)(&dio->complete_work)

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock((work_completion)(&dio->complete_work));
                               lock((wq_completion)"dio/%s"sb->s_id);
                               lock((work_completion)(&dio->complete_work));
  lock(&sb->s_type->i_mutex_key#10);

 *** DEADLOCK ***

2 locks held by kworker/0:4/8183:
 #0: 00000000db7c9a89 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 0000000026fcde4e ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128

stack backtrace:
CPU: 0 PID: 8183 Comm: kworker/0:4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: dio/sda1 dio_aio_complete_work
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
 check_prev_add kernel/locking/lockdep.c:1866 [inline]
 check_prevs_add kernel/locking/lockdep.c:1979 [inline]
 validate_chain kernel/locking/lockdep.c:2420 [inline]
 __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 down_write+0x34/0x90 kernel/locking/rwsem.c:70
 inode_lock include/linux/fs.h:748 [inline]
 __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989
 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118
 vfs_fsync_range+0x13a/0x220 fs/sync.c:197
 generic_write_sync include/linux/fs.h:2750 [inline]
 dio_complete+0x763/0xac0 fs/direct-io.c:329
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
BTRFS error (device loop4): open_ctree failed
UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
BTRFS info (device loop4): setting 8 feature flag
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
BTRFS info (device loop4): force lzo compression, level 0
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
BTRFS info (device loop4): disk space caching is enabled
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
BTRFS info (device loop4): has skinny extents
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
attempt to access beyond end of device
loop4: rw=4096, want=10376, limit=10375
UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256
BTRFS warning (device loop4): failed to read root (objectid=4): -5
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000)
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
BTRFS error (device loop4): open_ctree failed
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop4): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop4): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPVS: sync thread started: state = MASTER, mcast_ifn = veth1_to_bond, syncid = 0, id = 0
EXT4-fs (loop4): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
IPVS: sync thread started: state = MASTER, mcast_ifn = veth1_to_bond, syncid = 0, id = 0
EXT4-fs (loop2): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPVS: sync thread started: state = MASTER, mcast_ifn = veth1_to_bond, syncid = 0, id = 0
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 1 PID: 12846 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 __do_kmalloc mm/slab.c:3725 [inline]
 __kmalloc+0x2ab/0x3c0 mm/slab.c:3736
 kmalloc include/linux/slab.h:520 [inline]
 __do_sys_memfd_create mm/memfd.c:295 [inline]
 __se_sys_memfd_create+0xf8/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833f1639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a81963f28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833f1639
RDX: 00007f5a81963fe0 RSI: 0000000000000000 RDI: 00007f5a8344bb24
RBP: 00007f5a819641d0 R08: 00007f5a81963fd8 R09: 00007f5a819641d0
R10: 00007f5a81963fdc R11: 0000000000000206 R12: 0000000020000000
R13: 0000000000040000 R14: 00007f5a81963fe0 R15: 0000000020000200
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
CPU: 1 PID: 12862 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x277/0x370 mm/slab.c:3557
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3609
 alloc_inode+0x5d/0x180 fs/inode.c:211
 new_inode_pseudo fs/inode.c:911 [inline]
 new_inode+0x1d/0xf0 fs/inode.c:940
 shmem_get_inode+0x96/0x8d0 mm/shmem.c:2196
 __shmem_file_setup.part.0+0x7a/0x2b0 mm/shmem.c:3965
 __shmem_file_setup mm/shmem.c:3959 [inline]
 shmem_file_setup+0x61/0x90 mm/shmem.c:4006
 __do_sys_memfd_create mm/memfd.c:325 [inline]
 __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833f1639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a81963f28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833f1639
RDX: 00007f5a81963fe0 RSI: 0000000000000000 RDI: 00007f5a8344bb24
RBP: 00007f5a819641d0 R08: 00007f5a81963fd8 R09: 00007f5a819641d0
R10: 00007f5a81963fdc R11: 0000000000000206 R12: 0000000020000000
R13: 0000000000040000 R14: 00007f5a81963fe0 R15: 0000000020000200
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12883 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x277/0x370 mm/slab.c:3557
 __d_alloc+0x2b/0xa10 fs/dcache.c:1612
 d_alloc_pseudo+0x19/0x70 fs/dcache.c:1743
 alloc_file_pseudo+0xc6/0x250 fs/file_table.c:224
 __shmem_file_setup.part.0+0x102/0x2b0 mm/shmem.c:3976
 __shmem_file_setup mm/shmem.c:3959 [inline]
 shmem_file_setup+0x61/0x90 mm/shmem.c:4006
 __do_sys_memfd_create mm/memfd.c:325 [inline]
 __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833f1639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a81963f28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833f1639
RDX: 00007f5a81963fe0 RSI: 0000000000000000 RDI: 00007f5a8344bb24
RBP: 00007f5a819641d0 R08: 00007f5a81963fd8 R09: 00007f5a819641d0
R10: 00007f5a81963fdc R11: 0000000000000206 R12: 0000000020000000
R13: 0000000000040000 R14: 00007f5a81963fe0 R15: 0000000020000200
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
CPU: 0 PID: 12904 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x277/0x370 mm/slab.c:3557
 kmem_cache_zalloc include/linux/slab.h:699 [inline]
 __alloc_file+0x21/0x340 fs/file_table.c:100
 alloc_empty_file+0x6d/0x170 fs/file_table.c:150
 alloc_file+0x5e/0x4d0 fs/file_table.c:192
 alloc_file_pseudo+0x165/0x250 fs/file_table.c:231
 __shmem_file_setup.part.0+0x102/0x2b0 mm/shmem.c:3976
 __shmem_file_setup mm/shmem.c:3959 [inline]
 shmem_file_setup+0x61/0x90 mm/shmem.c:4006
 __do_sys_memfd_create mm/memfd.c:325 [inline]
 __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833f1639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a81963f28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833f1639
RDX: 00007f5a81963fe0 RSI: 0000000000000000 RDI: 00007f5a8344bb24
RBP: 00007f5a819641d0 R08: 00007f5a81963fd8 R09: 00007f5a819641d0
R10: 00007f5a81963fdc R11: 0000000000000206 R12: 0000000020000000
R13: 0000000000040000 R14: 00007f5a81963fe0 R15: 0000000020000200
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12927 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc_trace+0x284/0x380 mm/slab.c:3623
 kmalloc include/linux/slab.h:515 [inline]
 kzalloc include/linux/slab.h:709 [inline]
 aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline]
 apparmor_file_alloc_security+0x394/0xad0 security/apparmor/lsm.c:438
 security_file_alloc+0x40/0x90 security/security.c:880
 __alloc_file+0xd8/0x340 fs/file_table.c:105
 alloc_empty_file+0x6d/0x170 fs/file_table.c:150
 alloc_file+0x5e/0x4d0 fs/file_table.c:192
 alloc_file_pseudo+0x165/0x250 fs/file_table.c:231
 __shmem_file_setup.part.0+0x102/0x2b0 mm/shmem.c:3976
 __shmem_file_setup mm/shmem.c:3959 [inline]
 shmem_file_setup+0x61/0x90 mm/shmem.c:4006
 __do_sys_memfd_create mm/memfd.c:325 [inline]
 __se_sys_memfd_create+0x26b/0x440 mm/memfd.c:268
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833f1639
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5a81963f28 EFLAGS: 00000206 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833f1639
RDX: 00007f5a81963fe0 RSI: 0000000000000000 RDI: 00007f5a8344bb24
RBP: 00007f5a819641d0 R08: 00007f5a81963fd8 R09: 00007f5a819641d0
R10: 00007f5a81963fdc R11: 0000000000000206 R12: 0000000020000000
R13: 0000000000040000 R14: 00007f5a81963fe0 R15: 0000000020000200
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 1
CPU: 1 PID: 12941 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
 should_fail_alloc_page mm/page_alloc.c:3088 [inline]
 prepare_alloc_pages mm/page_alloc.c:4346 [inline]
 __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161
 shmem_alloc_page+0x11c/0x1f0 mm/shmem.c:1494
 shmem_alloc_and_acct_page+0x15a/0x850 mm/shmem.c:1519
 shmem_getpage_gfp+0x4e9/0x37f0 mm/shmem.c:1797
 shmem_getpage mm/shmem.c:132 [inline]
 shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_pwrite64 fs/read_write.c:653 [inline]
 __do_sys_pwrite64 fs/read_write.c:663 [inline]
 __se_sys_pwrite64 fs/read_write.c:660 [inline]
 __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833a3797
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f5a81963f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833a3797
RDX: 000000000000000f RSI: 0000000020010400 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f5a819641d0
R10: 0000000000001000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000020000200 R14: 0000000000000000 R15: 00007f5a8343ba20
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12991 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 __should_failslab+0x115/0x180 mm/failslab.c:32
 should_failslab+0x5/0x10 mm/slab_common.c:1590
 slab_pre_alloc_hook mm/slab.h:424 [inline]
 slab_alloc mm/slab.c:3383 [inline]
 kmem_cache_alloc+0x3f/0x370 mm/slab.c:3557
 radix_tree_node_alloc.constprop.0+0x1e4/0x320 lib/radix-tree.c:398
 __radix_tree_create+0x314/0x540 lib/radix-tree.c:839
 __radix_tree_insert+0xbb/0x5f0 lib/radix-tree.c:994
 radix_tree_insert include/linux/radix-tree.h:300 [inline]
 shmem_add_to_page_cache+0x616/0xbb0 mm/shmem.c:629
 shmem_getpage_gfp+0x2004/0x37f0 mm/shmem.c:1836
 shmem_getpage mm/shmem.c:132 [inline]
 shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_pwrite64 fs/read_write.c:653 [inline]
 __do_sys_pwrite64 fs/read_write.c:663 [inline]
 __se_sys_pwrite64 fs/read_write.c:660 [inline]
 __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833a3797
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f5a81963f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833a3797
RDX: 000000000000000f RSI: 0000000020010400 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f5a819641d0
R10: 0000000000001000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000020000200 R14: 0000000000000000 R15: 00007f5a8343ba20
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 13027 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
 should_fail_alloc_page mm/page_alloc.c:3088 [inline]
 prepare_alloc_pages mm/page_alloc.c:4346 [inline]
 __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161
 shmem_alloc_page+0x11c/0x1f0 mm/shmem.c:1494
 shmem_alloc_and_acct_page+0x15a/0x850 mm/shmem.c:1519
 shmem_getpage_gfp+0x4e9/0x37f0 mm/shmem.c:1797
 shmem_getpage mm/shmem.c:132 [inline]
 shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_pwrite64 fs/read_write.c:653 [inline]
 __do_sys_pwrite64 fs/read_write.c:663 [inline]
 __se_sys_pwrite64 fs/read_write.c:660 [inline]
 __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833a3797
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f5a81963f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833a3797
RDX: 0000000000001002 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f5a819641d0
R10: 0000000000002000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000020000218 R14: 0000000000000001 R15: 00007f5a8343ba20
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 13058 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:3088 [inline]
 prepare_alloc_pages mm/page_alloc.c:4346 [inline]
 __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393
 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161
 shmem_alloc_page+0x11c/0x1f0 mm/shmem.c:1494
 shmem_alloc_and_acct_page+0x15a/0x850 mm/shmem.c:1519
 shmem_getpage_gfp+0x4e9/0x37f0 mm/shmem.c:1797
 shmem_getpage mm/shmem.c:132 [inline]
 shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_pwrite64 fs/read_write.c:653 [inline]
 __do_sys_pwrite64 fs/read_write.c:663 [inline]
 __se_sys_pwrite64 fs/read_write.c:660 [inline]
 __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833a3797
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f5a81963f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a833a3797
RDX: 0000000000001002 RSI: 0000000020010500 RDI: 0000000000000004
RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f5a819641d0
R10: 0000000000002000 R11: 0000000000000293 R12: 0000000000000004
R13: 0000000020000218 R14: 0000000000000001 R15: 00007f5a8343ba20
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 0
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
CPU: 0 PID: 13088 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0xa/0xf lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:3088 [inline]
 prepare_alloc_pages mm/page_alloc.c:4346 [inline]
 __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393
 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161
 shmem_alloc_page+0x11c/0x1f0 mm/shmem.c:1494
 shmem_alloc_and_acct_page+0x15a/0x850 mm/shmem.c:1519
 shmem_getpage_gfp+0x4e9/0x37f0 mm/shmem.c:1797
 shmem_getpage mm/shmem.c:132 [inline]
 shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 vfs_write+0x1f3/0x540 fs/read_write.c:549
 ksys_pwrite64 fs/read_write.c:653 [inline]
 __do_sys_pwrite64 fs/read_write.c:663 [inline]
 __se_sys_pwrite64 fs/read_write.c:660 [inline]
 __x64_sys_pwrite64+0x1f7/0x250 fs/read_write.c:660
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5a833a3797
Code: 08 89 3c 24 48 89 4c 24 18 e8 e5 f8 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 48 8b 74 24 08 8b 3c 24 b8 12 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 04 24 e8 15 f9 ff ff 48 8b
RSP: 002b:00007f5a81963f00 EFLAGS: 00000293 ORIG_RAX: 0000000000000012