REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. ====================================================== WARNING: possible circular locking dependency detected 4.14.302-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.2/10345 is trying to acquire lock: (&journal->j_mutex){+.+.}, at: [] reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:816 [inline] (&journal->j_mutex){+.+.}, at: [] lock_journal fs/reiserfs/journal.c:537 [inline] (&journal->j_mutex){+.+.}, at: [] do_journal_begin_r+0x26b/0xde0 fs/reiserfs/journal.c:3054 but task is already holding lock: (sb_writers#17){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] (sb_writers#17){.+.+}, at: [] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (sb_writers#17){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x64/0x260 fs/super.c:1342 sb_start_write include/linux/fs.h:1551 [inline] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 reiserfs_ioctl+0x18e/0x8b0 fs/reiserfs/ioctl.c:110 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #1 (&sbi->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 reiserfs_write_lock_nested+0x59/0xd0 fs/reiserfs/lock.c:78 reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:817 [inline] lock_journal fs/reiserfs/journal.c:537 [inline] do_journal_begin_r+0x276/0xde0 fs/reiserfs/journal.c:3054 journal_begin+0x162/0x3d0 fs/reiserfs/journal.c:3262 reiserfs_fill_super+0x18f4/0x2990 fs/reiserfs/super.c:2117 mount_bdev+0x2b3/0x360 fs/super.c:1134 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 -> #0 (&journal->j_mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:816 [inline] lock_journal fs/reiserfs/journal.c:537 [inline] do_journal_begin_r+0x26b/0xde0 fs/reiserfs/journal.c:3054 journal_begin+0x162/0x3d0 fs/reiserfs/journal.c:3262 reiserfs_dirty_inode+0xd9/0x200 fs/reiserfs/super.c:716 __mark_inode_dirty+0x11e/0xf40 fs/fs-writeback.c:2134 mark_inode_dirty include/linux/fs.h:2026 [inline] reiserfs_ioctl+0x6f6/0x8b0 fs/reiserfs/ioctl.c:118 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 other info that might help us debug this: Chain exists of: &journal->j_mutex --> &sbi->lock --> sb_writers#17 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#17); lock(&sbi->lock); lock(sb_writers#17); lock(&journal->j_mutex); *** DEADLOCK *** 1 lock held by syz-executor.2/10345: #0: (sb_writers#17){.+.+}, at: [] sb_start_write include/linux/fs.h:1551 [inline] #0: (sb_writers#17){.+.+}, at: [] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497 stack backtrace: CPU: 1 PID: 10345 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 reiserfs_mutex_lock_safe fs/reiserfs/reiserfs.h:816 [inline] lock_journal fs/reiserfs/journal.c:537 [inline] do_journal_begin_r+0x26b/0xde0 fs/reiserfs/journal.c:3054 journal_begin+0x162/0x3d0 fs/reiserfs/journal.c:3262 reiserfs_dirty_inode+0xd9/0x200 fs/reiserfs/super.c:716 __mark_inode_dirty+0x11e/0xf40 fs/fs-writeback.c:2134 mark_inode_dirty include/linux/fs.h:2026 [inline] reiserfs_ioctl+0x6f6/0x8b0 fs/reiserfs/ioctl.c:118 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f1f663570a9 RSP: 002b:00007f1f648c9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1f66476f80 RCX: 00007f1f663570a9 RDX: 0000000020000380 RSI: 0000000040087602 RDI: 0000000000000004 RBP: 00007f1f663b2ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcc195962f R14: 00007f1f648c9300 R15: 0000000000022000 REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) 9pnet: Insufficient options for proto=fd REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. XFS (loop3): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop3): Attempted to mount read-only compatible filesystem read-write. XFS (loop3): Filesystem can only be safely mounted read only. XFS (loop3): SB validate failed with error -22. REISERFS (device loop2): found reiserfs format "3.6" with non-standard journal REISERFS (device loop2): using ordered data mode reiserfs: using flush barriers REISERFS (device loop2): journal params: device loop2, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop2): checking transaction log (loop2) 9pnet: Insufficient options for proto=fd REISERFS (device loop2): Using r5 hash to sort names REISERFS (device loop2): Created .reiserfs_priv - reserved for xattr storage. 9pnet: Insufficient options for proto=fd XFS (loop1): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop1): Attempted to mount read-only compatible filesystem read-write. XFS (loop1): Filesystem can only be safely mounted read only. XFS (loop1): SB validate failed with error -22. 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Unmounting Filesystem 9pnet: Insufficient options for proto=fd 9pnet: Insufficient options for proto=fd XFS (loop1): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop1): Attempted to mount read-only compatible filesystem read-write. XFS (loop1): Filesystem can only be safely mounted read only. XFS (loop1): SB validate failed with error -22. XFS (loop4): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop4): Attempted to mount read-only compatible filesystem read-write. XFS (loop4): Filesystem can only be safely mounted read only. XFS (loop4): SB validate failed with error -22. XFS (loop5): Superblock has unknown read-only compatible features (0x8) enabled. XFS (loop5): Attempted to mount read-only compatible filesystem read-write. XFS (loop5): Filesystem can only be safely mounted read only. XFS (loop5): SB validate failed with error -22. XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Unmounting Filesystem XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Unmounting Filesystem XFS (loop3): Mounting V4 Filesystem XFS (loop3): Ending clean mount XFS (loop3): Unmounting Filesystem UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop1): udf_load_vrs: No VRS found UDF-fs: warning (device loop4): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop5): udf_read_tagged: read failed, block=256, location=256 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: error (device loop5): udf_read_tagged: read failed, block=512, location=512 UDF-fs: error (device loop2): udf_read_tagged: read failed, block=512, location=512 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: warning (device loop5): udf_load_vrs: No anchor found UDF-fs: warning (device loop2): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop5): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: warning (device loop3): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 512 failed UDF-fs: warning (device loop3): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 1024 failed UDF-fs: warning (device loop3): udf_load_vrs: No VRS found UDF-fs: Scanning with blocksize 2048 failed UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 UDF-fs: error (device loop1): udf_read_tagged: read failed, block=256, location=256 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256 CPU: 0 PID: 10897 Comm: syz-executor.4 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] SYSC_memfd_create mm/shmem.c:3754 [inline] SyS_memfd_create+0xbc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f814009a0a9 RSP: 002b:00007f813e60bf38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00000000000001ab RCX: 00007f814009a0a9 RDX: 00007f813e60bfdc RSI: 0000000000000000 RDI: 00007f81400f4e81 RBP: 00000000000001ab R08: 00007f813e60be20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200001c0 R13: 00007f813e60bfdc R14: 00007f813e60bfe0 R15: 0000000020000280 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) UDF-fs: error (device loop2): udf_read_tagged: read failed, block=512, location=512 UDF-fs: warning (device loop2): udf_load_vrs: No anchor found UDF-fs: Scanning with blocksize 512 failed UDF-fs: error (device loop2): udf_read_tagged: read failed, block=256, location=256 UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 10920 Comm: syz-executor.5 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] SYSC_memfd_create mm/shmem.c:3754 [inline] SyS_memfd_create+0xbc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f8226e870a9 RSP: 002b:00007f82253f8f38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 000000000000acc9 RCX: 00007f8226e870a9 RDX: 00007f82253f8fdc RSI: 0000000000000000 RDI: 00007f8226ee1e81 RBP: 000000000000acc9 R08: 00007f82253f8e20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 000000002000ad00 R13: 00007f82253f8fdc R14: 00007f82253f8fe0 R15: 000000002000adc0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 10929 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] SYSC_memfd_create mm/shmem.c:3754 [inline] SyS_memfd_create+0xbc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f1f663570a9 RSP: 002b:00007f1f648c8f38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00000000000001ea RCX: 00007f1f663570a9 RDX: 00007f1f648c8fdc RSI: 0000000000000000 RDI: 00007f1f663b1e81 RBP: 00000000000001ea R08: 00007f1f648c8e20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000200 R13: 00007f1f648c8fdc R14: 00007f1f648c8fe0 R15: 00000000200002c0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 10937 Comm: syz-executor.4 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 __shmem_file_setup.part.0+0xcb/0x3c0 mm/shmem.c:4276 __shmem_file_setup mm/shmem.c:4264 [inline] shmem_file_setup mm/shmem.c:4331 [inline] SYSC_memfd_create mm/shmem.c:3784 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f814009a0a9 RSP: 002b:00007f813e60bf38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00000000000001ab RCX: 00007f814009a0a9 RDX: 00007f813e60bfdc RSI: 0000000000000000 RDI: 00007f81400f4e81 RBP: 00000000000001ab R08: 00007f813e60be20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200001c0 R13: 00007f813e60bfdc R14: 00007f813e60bfe0 R15: 0000000020000280 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: 0 PID: 10947 Comm: syz-executor.2 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 __shmem_file_setup.part.0+0xcb/0x3c0 mm/shmem.c:4276 __shmem_file_setup mm/shmem.c:4264 [inline] shmem_file_setup mm/shmem.c:4331 [inline] SYSC_memfd_create mm/shmem.c:3784 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f1f663570a9 RSP: 002b:00007f1f648c8f38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00000000000001ea RCX: 00007f1f663570a9 RDX: 00007f1f648c8fdc RSI: 0000000000000000 RDI: 00007f1f663b1e81 RBP: 00000000000001ea R08: 00007f1f648c8e20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000200 R13: 00007f1f648c8fdc R14: 00007f1f648c8fe0 R15: 00000000200002c0 CPU: 1 PID: 10946 Comm: syz-executor.5 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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+0x28e/0x3c0 mm/slab.c:3550 __d_alloc+0x2a/0xa20 fs/dcache.c:1623 __shmem_file_setup.part.0+0xcb/0x3c0 mm/shmem.c:4276 __shmem_file_setup mm/shmem.c:4264 [inline] shmem_file_setup mm/shmem.c:4331 [inline] SYSC_memfd_create mm/shmem.c:3784 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f8226e870a9 RSP: 002b:00007f82253f8f38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 000000000000acc9 RCX: 00007f8226e870a9 RDX: 00007f82253f8fdc RSI: 0000000000000000 RDI: 00007f8226ee1e81 RBP: 000000000000acc9 R08: 00007f82253f8e20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 000000002000ad00 R13: 00007f82253f8fdc R14: 00007f82253f8fe0 R15: 000000002000adc0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 10953 Comm: syz-executor.4 Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 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+0x28e/0x3c0 mm/slab.c:3550 shmem_alloc_inode+0x18/0x40 mm/shmem.c:3904 alloc_inode+0x5d/0x170 fs/inode.c:209 new_inode_pseudo fs/inode.c:898 [inline] new_inode+0x1d/0xf0 fs/inode.c:927 shmem_get_inode+0x8b/0x890 mm/shmem.c:2181 __shmem_file_setup.part.0+0x104/0x3c0 mm/shmem.c:4282 __shmem_file_setup mm/shmem.c:4264 [inline] shmem_file_setup mm/shmem.c:4331 [inline] SYSC_memfd_create mm/shmem.c:3784 [inline] SyS_memfd_create+0x1fc/0x3c0 mm/shmem.c:3724 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f814009a0a9 RSP: 002b:00007f813e60bf38 EFLAGS: 00000202 ORIG_RAX: 000000000000013f RAX: ffffffffffffffda RBX: 00000000000001ab RCX: 00007f814009a0a9 RDX: 00007f813e60bfdc RSI: 0000000000000000 RDI: 00007f81400f4e81 RBP: 00000000000001ab R08: 00007f813e60be20 R09: ffffffffffffffff R10: 0000000000000000 R11: 0000000000000202 R12: 00000000200001c0 R13: 00007f813e60bfdc R14: 00007f813e60bfe0 R15: 0000000020000280 REISERFS (device loop3): found reiserfs format "3.6" with standard journal REISERFS (device loop3): using ordered data mode reiserfs: using flush barriers REISERFS (device loop3): journal params: device loop3, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 REISERFS (device loop3): checking transaction log (loop3) REISERFS (device loop1): found reiserfs format "3.6" with non-standard journal REISERFS (device loop1): using ordered data mode reiserfs: using flush barriers REISERFS (device loop1): journal params: device loop1, size 15748, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 REISERFS (device loop1): checking transaction log (loop1)