EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 not in group (block 4097)! EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock ttyprintk ttyprintk: tty_port_close_start: tty->count = 1 port count = 3 ====================================================== WARNING: possible circular locking dependency detected 4.14.184-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.0/431 is trying to acquire lock: (console_owner){-.-.}, at: [] console_trylock_spinning kernel/printk/printk.c:1658 [inline] (console_owner){-.-.}, at: [] vprintk_emit+0x2bd/0x600 kernel/printk/printk.c:1922 but task is already holding lock: (&(&port->lock)->rlock){-.-.}, at: [] tty_port_close_start.part.0+0x28/0x4c0 drivers/tty/tty_port.c:573 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:160 tty_port_tty_get+0x1d/0x80 drivers/tty/tty_port.c:288 tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:46 serial8250_tx_chars+0x400/0x9f0 drivers/tty/serial/8250/8250_port.c:1810 serial8250_handle_irq.part.0+0x1f8/0x240 drivers/tty/serial/8250/8250_port.c:1883 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1869 [inline] serial8250_default_handle_irq+0x96/0x110 drivers/tty/serial/8250/8250_port.c:1899 serial8250_interrupt+0xe4/0x1a0 drivers/tty/serial/8250/8250_core.c:129 __handle_irq_event_percpu+0xee/0x7f0 kernel/irq/handle.c:147 handle_irq_event_percpu+0x66/0x120 kernel/irq/handle.c:187 handle_irq_event+0xa2/0x12d kernel/irq/handle.c:204 handle_edge_irq+0x215/0x810 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] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:192 spin_unlock_irqrestore include/linux/spinlock.h:372 [inline] uart_write+0x28c/0x510 drivers/tty/serial/serial_core.c:625 do_output_char+0x4f5/0x750 drivers/tty/n_tty.c:447 process_output drivers/tty/n_tty.c:514 [inline] n_tty_write+0x409/0xe20 drivers/tty/n_tty.c:2345 do_tty_write drivers/tty/tty_io.c:959 [inline] tty_write+0x3f1/0x6e0 drivers/tty/tty_io.c:1043 redirected_tty_write+0x9c/0xb0 drivers/tty/tty_io.c:1064 do_loop_readv_writev fs/read_write.c:698 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_write fs/read_write.c:956 [inline] do_iter_write+0x3d9/0x550 fs/read_write.c:935 vfs_writev+0x133/0x2a0 fs/read_write.c:999 do_writev+0xfc/0x2c0 fs/read_write.c:1034 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #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 serial8250_console_write+0x6ea/0x8e0 drivers/tty/serial/8250/8250_port.c:3236 call_console_drivers kernel/printk/printk.c:1725 [inline] console_unlock+0x985/0xee0 kernel/printk/printk.c:2397 vprintk_emit+0x3b8/0x600 kernel/printk/printk.c:1923 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 register_console+0x6ef/0xac0 kernel/printk/printk.c:2716 univ8250_console_init+0x2f/0x3a drivers/tty/serial/8250/8250_core.c:691 console_init+0x46/0x53 kernel/printk/printk.c:2797 start_kernel+0x52f/0x771 init/main.c:634 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:240 -> #0 (console_owner){-.-.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit+0x2fa/0x600 kernel/printk/printk.c:1922 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 tty_port_close_start.part.0+0x466/0x4c0 drivers/tty/tty_port.c:575 tty_port_close_start drivers/tty/tty_port.c:647 [inline] tty_port_close+0x39/0xc0 drivers/tty/tty_port.c:640 tty_release+0x374/0xd60 drivers/tty/tty_io.c:1670 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x113/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb 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.0/431: #0: (&tty->legacy_mutex){+.+.}, at: [] tty_lock+0x5f/0x70 drivers/tty/tty_mutex.c:19 #1: (&(&port->lock)->rlock){-.-.}, at: [] tty_port_close_start.part.0+0x28/0x4c0 drivers/tty/tty_port.c:573 stack backtrace: CPU: 0 PID: 431 Comm: syz-executor.0 Not tainted 4.14.184-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+0x1b2/0x283 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x2dc/0x425 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+0x3057/0x42a0 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 console_trylock_spinning kernel/printk/printk.c:1679 [inline] vprintk_emit+0x2fa/0x600 kernel/printk/printk.c:1922 vprintk_func+0x58/0x152 kernel/printk/printk_safe.c:401 printk+0x9e/0xbc kernel/printk/printk.c:1996 tty_port_close_start.part.0+0x466/0x4c0 drivers/tty/tty_port.c:575 tty_port_close_start drivers/tty/tty_port.c:647 [inline] tty_port_close+0x39/0xc0 drivers/tty/tty_port.c:640 tty_release+0x374/0xd60 drivers/tty/tty_io.c:1670 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x113/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x416721 RSP: 002b:00007ffe90ab8880 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000009 RCX: 0000000000416721 RDX: 0000000000000000 RSI: 000000000000015c RDI: 0000000000000008 RBP: 0000000000000001 R08: 000000008068215c R09: 0000000080682160 R10: 00007ffe90ab8970 R11: 0000000000000293 R12: 00000000007903d0 R13: 000000000006bd74 R14: ffffffffffffffff R15: 000000000078bf0c EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop3): get root inode failed EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs (loop3): mount failed EXT4-fs (loop5): get root inode failed EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 not in group (block 4097)! EXT4-fs (loop5): mount failed EXT4-fs (loop2): group descriptors corrupted! EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs error (device loop2): ext4_fill_super:4365: inode #2: comm syz-executor.2: iget: root inode unallocated EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop2): get root inode failed EXT4-fs (loop2): mount failed EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed EXT4-fs (loop3): mount failed EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs: failed to create workqueue EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop5): mount failed EXT4-fs error (device loop2): ext4_fill_super:4365: inode #2: comm syz-executor.2: iget: root inode unallocated EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop2): get root inode failed EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop2): mount failed EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop2): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock print_req_error: I/O error, dev loop0, sector 0 EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs error (device loop2): ext4_fill_super:4365: inode #2: comm syz-executor.2: iget: root inode unallocated EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop2): get root inode failed EXT4-fs (loop2): mount failed EXT4-fs (loop5): get root inode failed EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): mount failed EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): bad geometry: block count 1080 exceeds size of device (256 blocks) netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock print_req_error: I/O error, dev loop5, sector 4 Buffer I/O error on dev loop5, logical block 1, async page read netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed EXT4-fs (loop3): mount failed EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed IPVS: persistence engine module ip_vs_pe_ ip not found EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps block group descriptors IPVS: persistence engine module ip_vs_pe_ ip not found EXT4-fs (loop3): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop3): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop5): VFS: Can't find ext4 filesystem EXT4-fs error (device loop3): ext4_fill_super:4365: inode #2: comm syz-executor.3: iget: root inode unallocated EXT4-fs (loop3): get root inode failed EXT4-fs (loop3): mount failed print_req_error: I/O error, dev loop5, sector 0 EXT4-fs (loop5): bad geometry: block count 1080 exceeds size of device (1 blocks) print_req_error: I/O error, dev loop3, sector 0 EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock Protocol error: SET target dimension is over the limit! EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed EXT4-fs (loop5): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! print_req_error: I/O error, dev loop3, sector 0 Protocol error: SET target dimension is over the limit! EXT4-fs (loop5): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop5): ext4_check_descriptors: Inode table for group 0 overlaps superblock Protocol error: SET target dimension is over the limit! EXT4-fs error (device loop5): ext4_fill_super:4365: inode #2: comm syz-executor.5: iget: root inode unallocated EXT4-fs (loop5): get root inode failed EXT4-fs (loop5): mount failed Protocol error: SET target dimension is over the limit! print_req_error: I/O error, dev loop3, sector 0 Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem EXT4-fs (loop5): bad geometry: block count 1080 exceeds size of device (1 blocks) Protocol error: SET target dimension is over the limit! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 EXT4-fs (loop5): VFS: Can't find ext4 filesystem EXT4-fs (loop3): VFS: Can't find ext4 filesystem batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! caif:caif_disconnect_client(): nothing to disconnect batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 EXT4-fs (loop3): VFS: Can't find ext4 filesystem batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_1 batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! EXT4-fs (loop5): VFS: Can't find ext4 filesystem EXT4-fs (loop3): VFS: Can't find ext4 filesystem caif:caif_disconnect_client(): nothing to disconnect EXT4-fs (loop5): VFS: Can't find ext4 filesystem EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop5): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem EXT4-fs (loop5): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop5): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! Protocol error: SET target dimension is over the limit! netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. EXT4-fs (loop3): VFS: Can't find ext4 filesystem Protocol error: SET target dimension is over the limit! netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. Protocol error: SET target dimension is over the limit! EXT4-fs (loop3): VFS: Can't find ext4 filesystem netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'. print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. Protocol error: SET target dimension is over the limit!