SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x2000
ttyprintk ttyprintk: tty_port_close_start: tty->count = 1 port count = 3
======================================================
WARNING: possible circular locking dependency detected
4.19.179-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.5/27534 is trying to acquire lock:
000000000ba574ef (console_owner){-...}, at: console_trylock_spinning kernel/printk/printk.c:1697 [inline]
000000000ba574ef (console_owner){-...}, at: vprintk_emit+0x3fe/0x740 kernel/printk/printk.c:1964
but task is already holding lock:
00000000a48e27e2 (&(&port->lock)->rlock){-.-.}, at: tty_port_close_start.part.0+0x28/0x540 drivers/tty/tty_port.c:574
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&(&port->lock)->rlock){-.-.}:
tty_port_tty_get+0x1d/0x80 drivers/tty/tty_port.c:289
tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:47
serial8250_tx_chars+0x490/0xaf0 drivers/tty/serial/8250/8250_port.c:1806
serial8250_handle_irq.part.0+0x31f/0x3d0 drivers/tty/serial/8250/8250_port.c:1893
serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1866 [inline]
serial8250_default_handle_irq+0xae/0x220 drivers/tty/serial/8250/8250_port.c:1909
serial8250_interrupt+0x101/0x240 drivers/tty/serial/8250/8250_core.c:125
__handle_irq_event_percpu+0x27e/0x8e0 kernel/irq/handle.c:149
handle_irq_event_percpu kernel/irq/handle.c:189 [inline]
handle_irq_event+0x102/0x290 kernel/irq/handle.c:206
handle_edge_irq+0x260/0xcf0 kernel/irq/chip.c:797
generic_handle_irq_desc include/linux/irqdesc.h:155 [inline]
handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87
do_IRQ+0x93/0x1c0 arch/x86/kernel/irq.c:246
ret_from_intr+0x0/0x1e
native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60
arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline]
default_idle+0x49/0x310 arch/x86/kernel/process.c:557
cpuidle_idle_call kernel/sched/idle.c:153 [inline]
do_idle+0x2ec/0x4b0 kernel/sched/idle.c:263
cpu_startup_entry+0xc5/0xe0 kernel/sched/idle.c:369
start_kernel+0x8d6/0x911 init/main.c:736
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #1 (&port_lock_key){-.-.}:
serial8250_console_write+0x89b/0xad0 drivers/tty/serial/8250/8250_port.c:3270
call_console_drivers kernel/printk/printk.c:1764 [inline]
console_unlock+0xbb6/0x1110 kernel/printk/printk.c:2460
vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965
vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405
printk+0xba/0xed kernel/printk/printk.c:2040
register_console+0x87f/0xc90 kernel/printk/printk.c:2776
univ8250_console_init+0x3a/0x46 drivers/tty/serial/8250/8250_core.c:684
console_init+0x4cb/0x718 kernel/printk/printk.c:2862
start_kernel+0x686/0x911 init/main.c:659
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243
-> #0 (console_owner){-...}:
console_trylock_spinning kernel/printk/printk.c:1718 [inline]
vprintk_emit+0x43b/0x740 kernel/printk/printk.c:1964
vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405
printk+0xba/0xed kernel/printk/printk.c:2040
tty_port_close_start.part.0+0x4f3/0x540 drivers/tty/tty_port.c:576
tty_port_close_start drivers/tty/tty_port.c:648 [inline]
tty_port_close+0x46/0x160 drivers/tty/tty_port.c:641
tty_release+0x45e/0x1210 drivers/tty/tty_io.c:1678
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Chain exists of:
console_owner --> &port_lock_key --> &(&port->lock)->rlock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&(&port->lock)->rlock);
lock(&port_lock_key);
lock(&(&port->lock)->rlock);
lock(console_owner);
*** DEADLOCK ***
2 locks held by syz-executor.5/27534:
#0: 0000000077556601 (&tty->legacy_mutex){+.+.}, at: tty_lock+0x6a/0xa0 drivers/tty/tty_mutex.c:19
#1: 00000000a48e27e2 (&(&port->lock)->rlock){-.-.}, at: tty_port_close_start.part.0+0x28/0x540 drivers/tty/tty_port.c:574
stack backtrace:
CPU: 1 PID: 27534 Comm: syz-executor.5 Not tainted 4.19.179-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:1221
check_prev_add kernel/locking/lockdep.c:1865 [inline]
check_prevs_add kernel/locking/lockdep.c:1978 [inline]
validate_chain kernel/locking/lockdep.c:2419 [inline]
__lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3415
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907
console_trylock_spinning kernel/printk/printk.c:1718 [inline]
vprintk_emit+0x43b/0x740 kernel/printk/printk.c:1964
vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405
printk+0xba/0xed kernel/printk/printk.c:2040
tty_port_close_start.part.0+0x4f3/0x540 drivers/tty/tty_port.c:576
tty_port_close_start drivers/tty/tty_port.c:648 [inline]
tty_port_close+0x46/0x160 drivers/tty/tty_port.c:641
tty_release+0x45e/0x1210 drivers/tty/tty_io.c:1678
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x41927b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007fff6ca8f7e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 000000000041927b
RDX: 0000000000570f98 RSI: 0000000008de416a RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b30526498
R10: 00007fff6ca8f8d0 R11: 0000000000000293 R12: 000000000019e5e4
R13: 00000000000003e8 R14: 000000000056bf60 R15: 000000000019e3f2
SQUASHFS error: zlib decompression failed, data probably corrupt
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x2000
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x226
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
autofs4:pid:27667:validate_dev_ioctl: invalid path supplied for cmd(0x0000937e)
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x226
autofs4:pid:27685:validate_dev_ioctl: invalid path supplied for cmd(0x0000937e)
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
autofs4:pid:27710:validate_dev_ioctl: invalid path supplied for cmd(0x0000937e)
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x326
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x326
autofs4:pid:27736:validate_dev_ioctl: invalid path supplied for cmd(0x0000937e)
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x426
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x426
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x526
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x526
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x726
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x726
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x826
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x826
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x926
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x926
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0xb26
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0xb26
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0xe26
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0xe26
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1026
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1026
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1126
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1126
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1426
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: Unable to read inode 0x1426
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1526
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1526
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: squashfs_read_data failed to read block 0x99
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: Unable to read metadata cache entry [99]
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read inode 0x1626
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: Unable to read metadata cache entry [99]
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: Unable to read inode 0x1626
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'.
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters.
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read inode 0x1726
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1726
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
set match dimension is over the limit!
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
set match dimension is over the limit!
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1826
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1826
set match dimension is over the limit!
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
squashfs: SQUASHFS error: unable to read id index table
SQUASHFS error: Unable to read metadata cache entry [99]
set match dimension is over the limit!
SQUASHFS error: Unable to read inode 0x1926
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
SQUASHFS error: zlib decompression failed, data probably corrupt
SQUASHFS error: squashfs_read_data failed to read block 0x99
SQUASHFS error: Unable to read metadata cache entry [99]
SQUASHFS error: Unable to read inode 0x1926
squashfs: SQUASHFS error: unable to read id index table
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead.
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table
IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready
squashfs: SQUASHFS error: unable to read id index table