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possible deadlock in lock_two_nondirectories

Status: auto-closed as invalid on 2020/08/10 20:40
Reported-by: syzbot+336ea880dbcdb2c56ed6@syzkaller.appspotmail.com
First crash: 1685d, last: 1685d
▶ ▼ Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream possible deadlock in lock_two_nondirectories reiserfs ext4 7 579d 792d 0/28 auto-obsoleted due to no activity on 2023/08/21 19:52

Sample crash report:
overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.
======================================================
WARNING: possible circular locking dependency detected
4.14.175-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/14383 is trying to acquire lock:
 (&ovl_i_mutex_key[depth]/4){+.+.}, at: [<ffffffff8190fa02>] inode_lock_nested include/linux/fs.h:754 [inline]
 (&ovl_i_mutex_key[depth]/4){+.+.}, at: [<ffffffff8190fa02>] lock_two_nondirectories+0xb2/0xf0 fs/inode.c:992

but task is already holding lock:
 (&ovl_i_mutex_key[depth]){+.+.}, at: [<ffffffff8190fa1a>] inode_lock include/linux/fs.h:719 [inline]
 (&ovl_i_mutex_key[depth]){+.+.}, at: [<ffffffff8190fa1a>] lock_two_nondirectories+0xca/0xf0 fs/inode.c:990

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&ovl_i_mutex_key[depth]){+.+.}:
       down_write+0x34/0x90 kernel/locking/rwsem.c:54
       inode_lock include/linux/fs.h:719 [inline]
       bprm_fill_uid fs/exec.c:1522 [inline]
       prepare_binprm+0x31a/0x7e0 fs/exec.c:1557
       do_execveat_common.isra.0+0xcc9/0x1c70 fs/exec.c:1783
       do_execve fs/exec.c:1847 [inline]
       SYSC_execve fs/exec.c:1928 [inline]
       SyS_execve+0x34/0x40 fs/exec.c:1923
       do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #3 (&sig->cred_guard_mutex){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893
       lock_trace+0x3f/0xc0 fs/proc/base.c:407
       proc_pid_syscall+0x81/0x1f0 fs/proc/base.c:639
       proc_single_show+0xe7/0x150 fs/proc/base.c:761
       seq_read+0x4d2/0x1160 fs/seq_file.c:237
       do_loop_readv_writev fs/read_write.c:695 [inline]
       do_loop_readv_writev fs/read_write.c:682 [inline]
       do_iter_read+0x3e3/0x5a0 fs/read_write.c:919
       vfs_readv+0xd3/0x130 fs/read_write.c:981
       do_preadv+0x161/0x200 fs/read_write.c:1065
       do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #2 (&p->lock){+.+.}:
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893
       seq_read+0xba/0x1160 fs/seq_file.c:165
       proc_reg_read+0xf2/0x160 fs/proc/inode.c:217
       do_loop_readv_writev fs/read_write.c:695 [inline]
       do_loop_readv_writev fs/read_write.c:682 [inline]
       do_iter_read+0x3e3/0x5a0 fs/read_write.c:919
       vfs_readv+0xd3/0x130 fs/read_write.c:981
       kernel_readv fs/splice.c:361 [inline]
       default_file_splice_read+0x41d/0x870 fs/splice.c:416
       do_splice_to+0xfb/0x150 fs/splice.c:880
       splice_direct_to_actor+0x20a/0x730 fs/splice.c:952
       do_splice_direct+0x164/0x210 fs/splice.c:1061
       do_sendfile+0x469/0xaf0 fs/read_write.c:1441
       SYSC_sendfile64 fs/read_write.c:1502 [inline]
       SyS_sendfile64+0xff/0x110 fs/read_write.c:1488
       do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #1 (sb_writers#3){.+.+}:
       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+0x1a1/0x2e0 fs/super.c:1363
       sb_start_write include/linux/fs.h:1549 [inline]
       mnt_want_write+0x3a/0xb0 fs/namespace.c:386
       ovl_rename+0x157/0xdc0 fs/overlayfs/dir.c:935
       vfs_rename+0x4d6/0x1600 fs/namei.c:4496
       SYSC_renameat2 fs/namei.c:4644 [inline]
       SyS_renameat2 fs/namei.c:4533 [inline]
       SYSC_renameat fs/namei.c:4679 [inline]
       SyS_renameat+0x620/0x6e0 fs/namei.c:4676
       do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

-> #0 (&ovl_i_mutex_key[depth]/4){+.+.}:
       lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3994
       down_write_nested+0x36/0x90 kernel/locking/rwsem.c:172
       inode_lock_nested include/linux/fs.h:754 [inline]
       lock_two_nondirectories+0xb2/0xf0 fs/inode.c:992
       vfs_rename+0x337/0x1600 fs/namei.c:4468
       SYSC_renameat2 fs/namei.c:4644 [inline]
       SyS_renameat2 fs/namei.c:4533 [inline]
       SYSC_rename fs/namei.c:4684 [inline]
       SyS_rename+0x60e/0x6d0 fs/namei.c:4682
       do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
       entry_SYSCALL_64_after_hwframe+0x42/0xb7

other info that might help us debug this:

Chain exists of:
  &ovl_i_mutex_key[depth]/4 --> &sig->cred_guard_mutex --> &ovl_i_mutex_key[depth]

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&ovl_i_mutex_key[depth]);
                               lock(&sig->cred_guard_mutex);
                               lock(&ovl_i_mutex_key[depth]);
  lock(&ovl_i_mutex_key[depth]/4);

 *** DEADLOCK ***

3 locks held by syz-executor.1/14383:
 #0:  (sb_writers#16){.+.+}, at: [<ffffffff819247fa>] sb_start_write include/linux/fs.h:1549 [inline]
 #0:  (sb_writers#16){.+.+}, at: [<ffffffff819247fa>] mnt_want_write+0x3a/0xb0 fs/namespace.c:386
 #1:  (&ovl_i_mutex_dir_key[depth]/1){+.+.}, at: [<ffffffff818d46b5>] inode_lock_nested include/linux/fs.h:754 [inline]
 #1:  (&ovl_i_mutex_dir_key[depth]/1){+.+.}, at: [<ffffffff818d46b5>] lock_rename+0x225/0x280 fs/namei.c:2885
 #2:  (&ovl_i_mutex_key[depth]){+.+.}, at: [<ffffffff8190fa1a>] inode_lock include/linux/fs.h:719 [inline]
 #2:  (&ovl_i_mutex_key[depth]){+.+.}, at: [<ffffffff8190fa1a>] lock_two_nondirectories+0xca/0xf0 fs/inode.c:990

stack backtrace:
CPU: 1 PID: 14383 Comm: syz-executor.1 Not tainted 4.14.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x13e/0x194 lib/dump_stack.c:58
 print_circular_bug.isra.0.cold+0x1c4/0x282 kernel/locking/lockdep.c:1258
 check_prev_add kernel/locking/lockdep.c:1901 [inline]
 check_prevs_add kernel/locking/lockdep.c:2018 [inline]
 validate_chain kernel/locking/lockdep.c:2460 [inline]
 __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487
 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3994
 down_write_nested+0x36/0x90 kernel/locking/rwsem.c:172
 inode_lock_nested include/linux/fs.h:754 [inline]
 lock_two_nondirectories+0xb2/0xf0 fs/inode.c:992
 vfs_rename+0x337/0x1600 fs/namei.c:4468
 SYSC_renameat2 fs/namei.c:4644 [inline]
 SyS_renameat2 fs/namei.c:4533 [inline]
 SYSC_rename fs/namei.c:4684 [inline]
 SyS_rename+0x60e/0x6d0 fs/namei.c:4682
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45c889
RSP: 002b:00007fc408d18c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fc408d196d4 RCX: 000000000045c889
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000020000080
RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008a3 R14: 00000000004cb563 R15: 000000000076bf0c
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
XFS (loop3): AIL initialisation failed: error -12
XFS (loop3): log mount failed
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
XFS (loop3): Log size out of supported range.
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
attempt to access beyond end of device
tmpfs: Bad value 'decultbQrelaive:' for mount option 'mpol'
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
XFS (loop3): empty log check failed
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
tmpfs: Bad mount option m
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
attempt to access beyond end of device
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
tmpfs: Bad value 'O#)adeaultbQrܐSJU/؂R:[\I]' for mount option 'mpol'
XFS (loop3): empty log check failed
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
attempt to access beyond end of device
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
XFS (loop3): empty log check failed
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
tmpfs: Bad value 'O#)adeaultbQrܐSJU/؂R:[\I]' for mount option 'mpol'
tmpfs: Bad value 'aive:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'aive:' for mount option 'mpol'
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
attempt to access beyond end of device
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
XFS (loop3): empty log check failed
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
attempt to access beyond end of device
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
XFS (loop3): empty log check failed
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
XFS (loop3): Mounting V4 Filesystem
XFS (loop3): log size 2154561536 bytes too large, maximum size is 2136997888 bytes
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
XFS (loop3): Log size out of supported range.
XFS (loop3): Continuing onwards, but if log hangs are experienced then please report this message in the bug report.
attempt to access beyond end of device
loop3: rw=4096, want=4208128, limit=264192
XFS (loop3): metadata I/O error: block 0x4035ff ("xlog_bread_noalign") error 5 numblks 1
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
XFS (loop3): empty log check failed
XFS (loop3): log mount/recovery failed: error -5
XFS (loop3): log mount failed
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
tmpfs: Bad value 'deaultbQrelaive:7dUy3NiĘc̪[˾5 .#' for mount option 'mpol'
tmpfs: Bad value 'deaultbQrelaive:7dUy3NiĘc̪[˾5 .#' for mount option 'mpol'
tmpfs: Bad value 'defa9t' for mount option 'mpol'
tmpfs: Bad value 'defa9t' for mount option 'mpol'
tmpfs: Bad mount option mol
tmpfs: Bad mount option mol
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
tmpfs: Bad value 'defaul' for mount option 'mpol'
scsi_io_completion: 17 callbacks suppressed
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Invalid superblock magic number
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'defzult=relative֦U5vp:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: No value for mount option ''
tmpfs: Bad value 'deaJhltbQr' for mount option 'mpol'
SELinux:  Context system_u:obje is not valid (left unmapped).
tmpfs: Bad value 'deaJhltbQr' for mount option 'mpol'
tmpfs: Bad value 'default=rlative:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
tmpfs: Bad mount option ault
tmpfs: Bad mount option ault
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop2): Invalid superblock magic number
XFS (loop3): Invalid superblock magic number
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop2): Invalid superblock magic number
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop3): Invalid superblock magic number
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop2): Invalid superblock magic number
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Invalid superblock magic number
sd 0:0:1:0: [sg0] tag#2636 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
tmpfs: Bad value 'deaultbQrelaive:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2636 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2636 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2636 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
sd 0:0:1:0: [sg0] tag#2636 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
sd 0:0:1:0: [sg0] tag#2664 FAILED Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
sd 0:0:1:0: [sg0] tag#2664 CDB: Read master cue
sd 0:0:1:0: [sg0] tag#2664 CDB[00]: 59 a5 95 88 c6 5b ec ef ec 3a cd fd ba dd 5e a2
sd 0:0:1:0: [sg0] tag#2664 CDB[10]: ca b5 52 3b af ce a2 a2 6e ff b9 16 2c b6 7d e3
sd 0:0:1:0: [sg0] tag#2664 CDB[20]: 1c 1f 40 e3 70 36 04 a1 c1
XFS (loop3): Invalid superblock magic number
tmpfs: No value for mount option 'mpolaQh5ulv'
XFS (loop3): Invalid superblock magic number
XFS (loop3): Invalid superblock magic number
tmpfs: Bad value 'default=relative:' for mount option 'mpol'
XFS (loop2): Invalid superblock magic number
tmpfs: No value for mount option 'm'
tmpfs: No value for mount option 'm'
XFS (loop3): Invalid superblock magic number
XFS (loop3): Invalid superblock magic number
tmpfs: Bad value 'default=relative:' for mount option 'mpol'

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2020/04/12 20:39 linux-4.14.y 4520f06b03ae 36b0b050 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.