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
4.14.304-syzkaller #0 Not tainted
------------------------------------------------------
systemd-udevd/11410 is trying to acquire lock:
F2FS-fs (loop0): Found nat_bits in checkpoint
(&(&gsm->tx_lock)->rlock){-...}, at: [<ffffffff8357507e>] gsmld_write_wakeup+0x4e/0xd0 drivers/tty/n_gsm.c:2490
but task is already holding lock:
(&port_lock_key){-.-.}, at: [<ffffffff835ca920>] serial8250_handle_irq.part.0+0x20/0x390 drivers/tty/serial/8250/8250_port.c:1894
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&port_lock_key){-.-.}:
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
uart_write_room+0xd5/0x340 drivers/tty/serial/serial_core.c:643
tty_write_room+0x61/0x80 drivers/tty/tty_ioctl.c:78
gsmld_write+0x69/0x120 drivers/tty/n_gsm.c:2546
do_tty_write drivers/tty/tty_io.c:959 [inline]
tty_write+0x410/0x740 drivers/tty/tty_io.c:1043
__vfs_write+0xe4/0x630 fs/read_write.c:480
__kernel_write+0xf5/0x330 fs/read_write.c:501
write_pipe_buf+0x143/0x1c0 fs/splice.c:797
splice_from_pipe_feed fs/splice.c:502 [inline]
__splice_from_pipe+0x326/0x7a0 fs/splice.c:626
splice_from_pipe fs/splice.c:661 [inline]
default_file_splice_write+0xc5/0x150 fs/splice.c:809
do_splice_from fs/splice.c:851 [inline]
direct_splice_actor+0x115/0x160 fs/splice.c:1018
splice_direct_to_actor+0x27c/0x730 fs/splice.c:973
do_splice_direct+0x164/0x210 fs/splice.c:1061
do_sendfile+0x47f/0xb30 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+0x5e/0xd3
-> #0 (&(&gsm->tx_lock)->rlock){-...}:
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
gsmld_write_wakeup+0x4e/0xd0 drivers/tty/n_gsm.c:2490
tty_wakeup+0xc3/0xf0 drivers/tty/tty_io.c:533
tty_port_default_wakeup+0x26/0x40 drivers/tty/tty_port.c:49
serial8250_tx_chars+0x3fe/0xc70 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq.part.0+0x2c7/0x390 drivers/tty/serial/8250/8250_port.c:1918
serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1891 [inline]
serial8250_default_handle_irq+0x8a/0x1f0 drivers/tty/serial/8250/8250_port.c:1934
serial8250_interrupt+0xf3/0x210 drivers/tty/serial/8250/8250_core.c:129
__handle_irq_event_percpu+0xee/0x7f0 kernel/irq/handle.c:147
handle_irq_event_percpu kernel/irq/handle.c:187 [inline]
handle_irq_event+0xed/0x240 kernel/irq/handle.c:204
handle_edge_irq+0x224/0xc40 kernel/irq/chip.c:770
generic_handle_irq_desc include/linux/irqdesc.h:159 [inline]
handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87
do_IRQ+0x93/0x1d0 arch/x86/kernel/irq.c:230
ret_from_intr+0x0/0x1e
arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
lock_is_held_type+0x17a/0x210 kernel/locking/lockdep.c:4038
lock_is_held include/linux/lockdep.h:437 [inline]
___might_sleep+0x227/0x2b0 kernel/sched/core.c:6006
slab_pre_alloc_hook mm/slab.h:419 [inline]
slab_alloc mm/slab.c:3376 [inline]
kmem_cache_alloc+0x284/0x3c0 mm/slab.c:3550
getname_flags+0xc8/0x550 fs/namei.c:138
user_path_at_empty+0x2a/0x50 fs/namei.c:2631
user_path_at include/linux/namei.h:57 [inline]
vfs_statx+0xd1/0x180 fs/stat.c:185
vfs_lstat include/linux/fs.h:3072 [inline]
SYSC_newlstat fs/stat.c:349 [inline]
SyS_newlstat+0x83/0xe0 fs/stat.c:343
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:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&port_lock_key);
lock(&(&gsm->tx_lock)->rlock);
lock(&port_lock_key);
lock(&(&gsm->tx_lock)->rlock);
*** DEADLOCK ***
3 locks held by systemd-udevd/11410:
#0: (&(&i->lock)->rlock){-.-.}, at: [<ffffffff835b7caa>] spin_lock include/linux/spinlock.h:317 [inline]
#0: (&(&i->lock)->rlock){-.-.}, at: [<ffffffff835b7caa>] serial8250_interrupt+0x3a/0x210 drivers/tty/serial/8250/8250_core.c:119
#1: (&port_lock_key){-.-.}, at: [<ffffffff835ca920>] serial8250_handle_irq.part.0+0x20/0x390 drivers/tty/serial/8250/8250_port.c:1894
#2: (&tty->ldisc_sem){++++}, at: [<ffffffff8355ceab>] tty_ldisc_ref+0x1b/0x80 drivers/tty/tty_ldisc.c:305
stack backtrace:
CPU: 1 PID: 11410 Comm: systemd-udevd Not tainted 4.14.304-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Call Trace:
<IRQ>
__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
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160
gsmld_write_wakeup+0x4e/0xd0 drivers/tty/n_gsm.c:2490
tty_wakeup+0xc3/0xf0 drivers/tty/tty_io.c:533
tty_port_default_wakeup+0x26/0x40 drivers/tty/tty_port.c:49
serial8250_tx_chars+0x3fe/0xc70 drivers/tty/serial/8250/8250_port.c:1828
serial8250_handle_irq.part.0+0x2c7/0x390 drivers/tty/serial/8250/8250_port.c:1918
serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1891 [inline]
serial8250_default_handle_irq+0x8a/0x1f0 drivers/tty/serial/8250/8250_port.c:1934
serial8250_interrupt+0xf3/0x210 drivers/tty/serial/8250/8250_core.c:129
__handle_irq_event_percpu+0xee/0x7f0 kernel/irq/handle.c:147
handle_irq_event_percpu kernel/irq/handle.c:187 [inline]
handle_irq_event+0xed/0x240 kernel/irq/handle.c:204
handle_edge_irq+0x224/0xc40 kernel/irq/chip.c:770
generic_handle_irq_desc include/linux/irqdesc.h:159 [inline]
handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87
do_IRQ+0x93/0x1d0 arch/x86/kernel/irq.c:230
common_interrupt+0x93/0x93 arch/x86/entry/entry_64.S:578
</IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_is_held_type+0x17a/0x210 kernel/locking/lockdep.c:4038
RSP: 0018:ffff88809373fc48 EFLAGS: 00000282 ORIG_RAX: ffffffffffffffc8
RAX: 1ffffffff11e13d9 RBX: 0000000000000282 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 00000000ffffffff RDI: 0000000000000282
RBP: ffff8880b54ea380 R08: ffffffff8b9b1408 R09: 0000000000000000
R10: 0000000000000000 R11: ffff8880b54ea380 R12: 0000000000000000
R13: 00000000014000c0 R14: ffffffff8a096c78 R15: 0000000000000000
lock_is_held include/linux/lockdep.h:437 [inline]
___might_sleep+0x227/0x2b0 kernel/sched/core.c:6006
slab_pre_alloc_hook mm/slab.h:419 [inline]
slab_alloc mm/slab.c:3376 [inline]
kmem_cache_alloc+0x284/0x3c0 mm/slab.c:3550
getname_flags+0xc8/0x550 fs/namei.c:138
user_path_at_empty+0x2a/0x50 fs/namei.c:2631
user_path_at include/linux/namei.h:57 [inline]
vfs_statx+0xd1/0x180 fs/stat.c:185
vfs_lstat include/linux/fs.h:3072 [inline]
SYSC_newlstat fs/stat.c:349 [inline]
SyS_newlstat+0x83/0xe0 fs/stat.c:343
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fbe778b9335
RSP: 002b:00007ffd9c0b0f18 EFLAGS: 00000246 ORIG_RAX: 0000000000000006
RAX: ffffffffffffffda RBX: 00005574dc6618a0 RCX: 00007fbe778b9335
RDX: 00007ffd9c0b0f50 RSI: 00007ffd9c0b0f50 RDI: 00005574dc6608a0
RBP: 00007ffd9c0b1010 R08: 00007fbe77b781b8 R09: 0000000000001010
R10: 0000000000000020 R11: 0000000000000246 R12: 00005574dc6608a0
R13: 00005574dc6608a4 R14: 00005574dc66c981 R15: 00005574dc66c984
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
nla_parse: 8 callbacks suppressed
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.2'.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor.2'.
BTRFS info (device loop4): enabling inode map caching
BTRFS info (device loop4): force clearing of disk cache
BTRFS info (device loop4): disabling free space tree
BTRFS info (device loop4): has skinny extents
audit: type=1800 audit(1675267083.594:53): pid=11638 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="loop5" ino=119 res=0
BTRFS info (device loop4): clearing free space tree
audit: type=1804 audit(1675267083.614:54): pid=11638 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327407832/syzkaller.enGPMl/66/file0/file0" dev="loop5" ino=119 res=1
BTRFS info (device loop4): clearing 1 ro feature flag
F2FS-fs (loop0): Found nat_bits in checkpoint
BTRFS info (device loop4): clearing 2 ro feature flag
BTRFS info (device loop4): checking UUID tree
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
audit: type=1800 audit(1675267084.014:55): pid=11718 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="loop5" ino=120 res=0
audit: type=1804 audit(1675267084.014:56): pid=11718 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327407832/syzkaller.enGPMl/67/file0/file0" dev="loop5" ino=120 res=1
audit: type=1800 audit(1675267084.164:57): pid=11792 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="loop5" ino=121 res=0
audit: type=1804 audit(1675267084.174:58): pid=11792 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327407832/syzkaller.enGPMl/68/file0/file0" dev="loop5" ino=121 res=1
audit: type=1800 audit(1675267084.304:59): pid=11818 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="loop5" ino=122 res=0
audit: type=1804 audit(1675267084.314:60): pid=11818 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327407832/syzkaller.enGPMl/69/file0/file0" dev="loop5" ino=122 res=1
audit: type=1800 audit(1675267084.544:61): pid=11828 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="file0" dev="loop5" ino=123 res=0
audit: type=1804 audit(1675267084.544:62): pid=11828 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir1327407832/syzkaller.enGPMl/70/file0/file0" dev="loop5" ino=123 res=1
F2FS-fs (loop0): Found nat_bits in checkpoint
F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
arp_tables: arptables: counters copy to user failed while replacing table
arp_tables: arptables: counters copy to user failed while replacing table
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): Filesystem has been set read-only
arp_tables: arptables: counters copy to user failed while replacing table
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
arp_tables: arptables: counters copy to user failed while replacing table
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop5): Found nat_bits in checkpoint
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop2): Found nat_bits in checkpoint
F2FS-fs (loop5): Mounted with checkpoint version = 48b305e5
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): Filesystem has been set read-only
F2FS-fs (loop5): Found nat_bits in checkpoint
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop5): Mounted with checkpoint version = 48b305e5
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop2): Found nat_bits in checkpoint
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
FAT-fs (loop3): error, fat_bmap_cluster: request beyond EOF (i_pos 2070)
f2fs_msg: 2 callbacks suppressed
F2FS-fs (loop2): Found nat_bits in checkpoint