REISERFS (device loop1): journal params: device loop1, size 512, 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)
REISERFS (device loop1): Using r5 hash to sort names
REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage.
======================================================
WARNING: possible circular locking dependency detected
4.14.302-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.1/10463 is trying to acquire lock:
(sb_writers#20){.+.+}, at: [<ffffffff818e216d>] sb_start_write include/linux/fs.h:1551 [inline]
(sb_writers#20){.+.+}, at: [<ffffffff818e216d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
but task is already holding lock:
(&sbi->lock){+.+.}, at: [<ffffffff81b3fca5>] reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&sbi->lock){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:756 [inline]
__mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893
reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27
reiserfs_lookup+0x130/0x400 fs/reiserfs/namei.c:363
lookup_real fs/namei.c:1555 [inline]
__lookup_hash fs/namei.c:1575 [inline]
__lookup_hash+0x1bb/0x270 fs/namei.c:1563
lookup_one_len+0x279/0x3a0 fs/namei.c:2539
reiserfs_lookup_privroot+0x92/0x270 fs/reiserfs/xattr.c:970
reiserfs_fill_super+0x1d12/0x2990 fs/reiserfs/super.c:2187
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
-> #1 (&type->i_mutex_dir_key#10){+.+.}:
down_write+0x34/0x90 kernel/locking/rwsem.c:54
inode_lock include/linux/fs.h:719 [inline]
do_last fs/namei.c:3331 [inline]
path_openat+0xde2/0x2970 fs/namei.c:3571
do_filp_open+0x179/0x3c0 fs/namei.c:3605
do_sys_open+0x296/0x410 fs/open.c:1081
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
-> #0 (sb_writers#20){.+.+}:
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
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
other info that might help us debug this:
Chain exists of:
sb_writers#20 --> &type->i_mutex_dir_key#10 --> &sbi->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sbi->lock);
lock(&type->i_mutex_dir_key#10);
lock(&sbi->lock);
lock(sb_writers#20);
*** DEADLOCK ***
1 lock held by syz-executor.1/10463:
#0: (&sbi->lock){+.+.}, at: [<ffffffff81b3fca5>] reiserfs_write_lock+0x75/0xf0 fs/reiserfs/lock.c:27
stack backtrace:
CPU: 0 PID: 10463 Comm: syz-executor.1 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
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
RIP: 0033:0x7f0c21ae70a9
RSP: 002b:00007f0c20059168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c21c06f80 RCX: 00007f0c21ae70a9
RDX: 0000000020000380 RSI: 0000000040087602 RDI: 0000000000000005
RBP: 00007f0c21b42ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc79cae4bf R14: 00007f0c20059300 R15: 0000000000022000
EXT4-fs (loop2): mounted filesystem without journal. Opts: ,errors=continue
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 512, 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)
REISERFS (device loop1): Using r5 hash to sort names
REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage.
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 512, 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)
REISERFS (device loop1): Using r5 hash to sort names
REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage.
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 512, 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)
REISERFS (device loop1): Using r5 hash to sort names
REISERFS (device loop1): Created .reiserfs_priv - reserved for xattr storage.
device batadv0 entered promiscuous mode
8021q: adding VLAN 0 to HW filter on device macvlan2
bond0: Enslaving macvlan2 as an active interface with an up link
audit: type=1804 audit(1671728695.755:13): pid=10741 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir3475151694/syzkaller.m2V5dQ/39/bus" dev="sda1" ino=14056 res=1
audit: type=1804 audit(1671728695.775:14): pid=10741 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.5" name="/root/syzkaller-testdir3475151694/syzkaller.m2V5dQ/39/bus" dev="sda1" ino=14056 res=1
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
8021q: adding VLAN 0 to HW filter on device bond1
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond2 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
device bond1 entered promiscuous mode
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
8021q: adding VLAN 0 to HW filter on device bond1
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond1 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond1: link is not ready
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
8021q: adding VLAN 0 to HW filter on device bond1
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
device bond3 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready
8021q: adding VLAN 0 to HW filter on device bond3
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond2 entered promiscuous mode
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
8021q: adding VLAN 0 to HW filter on device bond2
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
device bond2 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond2: link is not ready
8021q: adding VLAN 0 to HW filter on device bond2
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond4 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond4: link is not ready
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
8021q: adding VLAN 0 to HW filter on device bond4
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.1'.
overlayfs: fs on 'file0' does not support file handles, falling back to index=off.
device bond3 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready
8021q: adding VLAN 0 to HW filter on device bond3
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
device bond3 entered promiscuous mode
IPv6: ADDRCONF(NETDEV_UP): bond3: link is not ready
8021q: adding VLAN 0 to HW filter on device bond3
sctp: [Deprecated]: syz-executor.1 (pid 11386) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
F2FS-fs (loop2): invalid crc value
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e4
audit: type=1800 audit(1671728700.316:15): pid=11295 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name=".pending_reads" dev="loop2" ino=10 res=0
audit: type=1804 audit(1671728700.316:16): pid=11295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir573265435/syzkaller.VidMgf/55/file0/bus" dev="loop2" ino=11 res=1
audit: type=1804 audit(1671728700.316:17): pid=11295 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.2" name="/root/syzkaller-testdir573265435/syzkaller.VidMgf/55/file0/bus" dev="loop2" ino=11 res=1
audit: type=1804 audit(1671728700.436:18): pid=11402 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.2" name="/root/syzkaller-testdir573265435/syzkaller.VidMgf/55/file0/bus" dev="loop2" ino=11 res=1
IPVS: ftp: loaded support on port[0] = 21
F2FS-fs (loop0): invalid crc value
audit: type=1800 audit(1671728701.916:19): pid=11417 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.4" name=".pending_reads" dev="sda1" ino=13933 res=0
audit: type=1804 audit(1671728701.956:20): pid=11417 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir3572398113/syzkaller.kH8seY/51/bus" dev="sda1" ino=13939 res=1
F2FS-fs (loop0): Found nat_bits in checkpoint
audit: type=1804 audit(1671728701.966:21): pid=11417 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir3572398113/syzkaller.kH8seY/51/bus" dev="sda1" ino=13939 res=1
F2FS-fs (loop2): invalid crc value
F2FS-fs (loop2): Found nat_bits in checkpoint
audit: type=1804 audit(1671728702.076:22): pid=11478 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir3572398113/syzkaller.kH8seY/51/bus" dev="sda1" ino=13939 res=1