RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
======================================================
WARNING: possible circular locking dependency detected
4.19.198-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor094/8160 is trying to acquire lock:
0000000002495b4e ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: flush_workqueue+0xe8/0x13e0 kernel/workqueue.c:2658

but task is already holding lock:
000000000884639b (&sb->s_type->i_mutex_key#17){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
000000000884639b (&sb->s_type->i_mutex_key#17){+.+.}, at: generic_file_write_iter+0x99/0x730 mm/filemap.c:3320

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #2 (&sb->s_type->i_mutex_key#17){+.+.}:
       inode_lock include/linux/fs.h:748 [inline]
       __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989
       fat_file_fsync+0x73/0x200 fs/fat/file.c:198
       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

-> #1 ((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

-> #0 ((wq_completion)"dio/%s"sb->s_id){+.+.}:
       flush_workqueue+0x117/0x13e0 kernel/workqueue.c:2661
       drain_workqueue+0x1a5/0x460 kernel/workqueue.c:2826
       destroy_workqueue+0x75/0x790 kernel/workqueue.c:4177
       __alloc_workqueue_key+0xb76/0xed0 kernel/workqueue.c:4154
       sb_init_dio_done_wq+0x34/0x90 fs/direct-io.c:623
       do_blockdev_direct_IO fs/direct-io.c:1285 [inline]
       __blockdev_direct_IO+0x5f55/0xef40 fs/direct-io.c:1419
       blockdev_direct_IO include/linux/fs.h:3059 [inline]
       fat_direct_IO+0x1d1/0x370 fs/fat/inode.c:282
       generic_file_direct_write+0x208/0x4a0 mm/filemap.c:3073
       __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
       generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
       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

other info that might help us debug this:

Chain exists of:
  (wq_completion)"dio/%s"sb->s_id --> (work_completion)(&dio->complete_work) --> &sb->s_type->i_mutex_key#17

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&sb->s_type->i_mutex_key#17);
                               lock((work_completion)(&dio->complete_work));
                               lock(&sb->s_type->i_mutex_key#17);
  lock((wq_completion)"dio/%s"sb->s_id);

 *** DEADLOCK ***

1 lock held by syz-executor094/8160:
 #0: 000000000884639b (&sb->s_type->i_mutex_key#17){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
 #0: 000000000884639b (&sb->s_type->i_mutex_key#17){+.+.}, at: generic_file_write_iter+0x99/0x730 mm/filemap.c:3320

stack backtrace:
CPU: 1 PID: 8160 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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
 flush_workqueue+0x117/0x13e0 kernel/workqueue.c:2661
 drain_workqueue+0x1a5/0x460 kernel/workqueue.c:2826
 destroy_workqueue+0x75/0x790 kernel/workqueue.c:4177
 __alloc_workqueue_key+0xb76/0xed0 kernel/workqueue.c:4154
 sb_init_dio_done_wq+0x34/0x90 fs/direct-io.c:623
 do_blockdev_direct_IO fs/direct-io.c:1285 [inline]
 __blockdev_direct_IO+0x5f55/0xef40 fs/direct-io.c:1419
 blockdev_direct_IO include/linux/fs.h:3059 [inline]
 fat_direct_IO+0x1d1/0x370 fs/fat/inode.c:282
 generic_file_direct_write+0x208/0x4a0 mm/filemap.c:3073
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8167 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8174 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8183 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8193 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8200 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8208 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8218 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8227 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8234 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8241 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8249 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8257 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8264 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8273 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 8283 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8290 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8298 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 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
RIP: 0033:0x44ab79
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:00007f4c2fe6e2e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00000000004cb4e0 RCX: 000000000044ab79
RDX: 0000000020000540 RSI: 0000000000000002 RDI: 00007f4c2fe45000
RBP: 000000000049b0b8 R08: 0000000000000001 R09: 0000000000000032
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004cb4ec
R13: 00007f4c2fe6e2f0 R14: 00000000004cb4e8 R15: 0000000000000001
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 8305 Comm: syz-executor094 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:1588
 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
 mempool_alloc+0x146/0x350 mm/mempool.c:385
 bio_alloc_bioset+0x389/0x5e0 block/bio.c:489
 bio_alloc include/linux/bio.h:437 [inline]
 mpage_alloc+0x2f/0x260 fs/mpage.c:79
 __mpage_writepage+0x102a/0x1570 fs/mpage.c:636
 write_cache_pages+0x802/0x12d0 mm/page-writeback.c:2240
 mpage_writepages+0xd1/0x230 fs/mpage.c:730
 do_writepages+0xe5/0x290 mm/page-writeback.c:2344
 __filemap_fdatawrite_range+0x27d/0x350 mm/filemap.c:446
 filemap_write_and_wait_range mm/filemap.c:679 [inline]
 filemap_write_and_wait_range+0x46/0xd0 mm/filemap.c:673
 generic_file_direct_write+0x389/0x4a0 mm/filemap.c:3049
 __generic_file_write_iter+0x2d0/0x610 mm/filemap.c:3252
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 aio_write+0x37f/0x5c0 fs/aio.c:1574