FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) INFO: task syz-executor.3:287 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:24176 pid: 287 ppid: 286 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 blkdev_get fs/block_dev.c:1658 [inline] blkdev_open+0x227/0x300 fs/block_dev.c:1775 do_dentry_open+0x4b7/0x1090 fs/open.c:817 do_open fs/namei.c:3307 [inline] path_openat+0x19ba/0x2770 fs/namei.c:3425 do_filp_open+0x190/0x3e0 fs/namei.c:3452 do_sys_openat2+0x171/0x4d0 fs/open.c:1227 do_sys_open fs/open.c:1243 [inline] __do_sys_openat fs/open.c:1259 [inline] __se_sys_openat fs/open.c:1254 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1254 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f81ed5bca04 RSP: 002b:00007ffc26aada90 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffc26aadb90 RCX: 00007f81ed5bca04 RDX: 0000000000000002 RSI: 00007ffc26aadbd0 RDI: 00000000ffffff9c RBP: 00007ffc26aadbd0 R08: 0000000000000000 R09: 00007ffc26aad9a0 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000000 R14: 0000000000000009 R15: 00007ffc26aadbd0 INFO: task syz-executor.7:11686 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.7 state:D stack:27192 pid:11686 ppid: 285 flags:0x00084004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 blkdev_get fs/block_dev.c:1658 [inline] blkdev_open+0x227/0x300 fs/block_dev.c:1775 do_dentry_open+0x4b7/0x1090 fs/open.c:817 do_open fs/namei.c:3307 [inline] path_openat+0x19ba/0x2770 fs/namei.c:3425 do_filp_open+0x190/0x3e0 fs/namei.c:3452 do_sys_openat2+0x171/0x4d0 fs/open.c:1227 do_sys_open fs/open.c:1243 [inline] __do_sys_openat fs/open.c:1259 [inline] __se_sys_openat fs/open.c:1254 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1254 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7ff699d18a04 RSP: 002b:00007ff6972daed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff699daf970 RCX: 00007ff699d18a04 RDX: 0000000000000002 RSI: 00007ff6972db000 RDI: 00000000ffffff9c RBP: 00007ff6972db000 R08: 0000000000000000 R09: 0000034446505853 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000003 R14: 0000000020000058 R15: 0000000000000001 INFO: task syz-executor.6:11689 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.6 state:D stack:27192 pid:11689 ppid: 284 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 blkdev_get fs/block_dev.c:1658 [inline] blkdev_open+0x227/0x300 fs/block_dev.c:1775 do_dentry_open+0x4b7/0x1090 fs/open.c:817 do_open fs/namei.c:3307 [inline] path_openat+0x19ba/0x2770 fs/namei.c:3425 do_filp_open+0x190/0x3e0 fs/namei.c:3452 do_sys_openat2+0x171/0x4d0 fs/open.c:1227 do_sys_open fs/open.c:1243 [inline] __do_sys_openat fs/open.c:1259 [inline] __se_sys_openat fs/open.c:1254 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1254 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f8cea1eca04 RSP: 002b:00007f8ce77aeed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f8cea283970 RCX: 00007f8cea1eca04 RDX: 0000000000000002 RSI: 00007f8ce77af000 RDI: 00000000ffffff9c RBP: 00007f8ce77af000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000003 R14: 0000000020000058 R15: 0000000000000001 INFO: task syz-executor.0:11690 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27936 pid:11690 ppid: 279 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 blkdev_put+0x30/0x530 fs/block_dev.c:1826 blkdev_close+0x8c/0xb0 fs/block_dev.c:1875 __fput+0x285/0x9f0 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:185 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x186/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f37911e572b RSP: 002b:00007ffef6822180 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f37911e572b RDX: 0000001b2cf238e8 RSI: ffffffff813b1951 RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2cf21520 R10: 00000000000007ea R11: 0000000000000293 R12: 00007f3791346b60 R13: 00007f3791346b60 R14: 00007f3791345f60 R15: 00000000001c7117 INFO: task syz-executor.0:11691 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27864 pid:11691 ppid: 279 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 blk_queue_enter+0x865/0xc30 block/blk-core.c:465 bio_queue_enter block/blk-core.c:480 [inline] __submit_bio_noacct_mq block/blk-core.c:1011 [inline] submit_bio_noacct+0xc42/0x1010 block/blk-core.c:1053 submit_bio+0xf3/0x4e0 block/blk-core.c:1123 submit_bh_wbc.constprop.0+0x580/0x780 fs/buffer.c:3054 submit_bh fs/buffer.c:3060 [inline] __bread_slow fs/buffer.c:1209 [inline] __bread_gfp+0x166/0x3a0 fs/buffer.c:1402 sb_bread include/linux/buffer_head.h:335 [inline] fat_set_state+0x151/0x310 fs/fat/inode.c:686 fat_fill_super+0x22a6/0x36e0 fs/fat/inode.c:1884 mount_bdev+0x336/0x400 fs/super.c:1442 legacy_get_tree+0x105/0x220 fs/fs_context.c:593 vfs_get_tree+0x8e/0x300 fs/super.c:1572 do_new_mount fs/namespace.c:2919 [inline] path_mount+0x1331/0x21c0 fs/namespace.c:3249 do_mount fs/namespace.c:3262 [inline] __do_sys_mount fs/namespace.c:3470 [inline] __se_sys_mount fs/namespace.c:3447 [inline] __x64_sys_mount+0x282/0x300 fs/namespace.c:3447 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f379123404a RSP: 002b:00007f378e7a7fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 00007f379123404a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f378e7a8000 RBP: 00007f378e7a8040 R08: 00007f378e7a8040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f378e7a8000 R15: 0000000020001500 INFO: task syz-executor.5:11698 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:27864 pid:11698 ppid: 290 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 lo_release+0x1a/0x1f0 drivers/block/loop.c:1905 __blkdev_put+0x64c/0x8a0 fs/block_dev.c:1806 blkdev_close+0x8c/0xb0 fs/block_dev.c:1875 __fput+0x285/0x9f0 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:185 get_signal+0x1c90/0x2350 kernel/signal.c:2535 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f060404e8d7 RSP: 002b:00007f06015c3fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffffc RBX: 0000000020000040 RCX: 00007f060404e8d7 RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004 RBP: 00007f06015c46bc R08: 0000000000000000 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 R13: 0000000000000000 R14: 00007f06015c4000 R15: 0000000020001500 INFO: task syz-executor.1:11700 blocked for more than 143 seconds. Not tainted 5.10.239 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:26616 pid:11700 ppid: 283 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 rwsem_down_read_slowpath+0x514/0xbb0 kernel/locking/rwsem.c:1099 __down_read kernel/locking/rwsem.c:1341 [inline] down_read+0x1f5/0x430 kernel/locking/rwsem.c:1506 __get_super.part.0+0x20d/0x2e0 fs/super.c:773 __get_super include/linux/spinlock.h:354 [inline] get_super+0x2b/0x60 fs/super.c:802 __invalidate_device+0x1c/0x130 fs/block_dev.c:2142 check_disk_size_change+0x122/0x190 fs/block_dev.c:1360 revalidate_disk_size fs/block_dev.c:1388 [inline] revalidate_disk_size+0x80/0xc0 fs/block_dev.c:1375 set_capacity_and_notify+0x8c/0x150 block/genhd.c:57 loop_set_size drivers/block/loop.c:241 [inline] loop_set_status+0x851/0xa10 drivers/block/loop.c:1400 loop_set_status_old+0x1bb/0x250 drivers/block/loop.c:1530 lo_ioctl+0xa19/0x16b0 drivers/block/loop.c:1700 __blkdev_driver_ioctl block/ioctl.c:240 [inline] blkdev_ioctl+0x291/0x710 block/ioctl.c:640 block_ioctl+0xf9/0x140 fs/block_dev.c:1893 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x19a/0x210 fs/ioctl.c:739 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f852a943b19 RSP: 002b:00007f8527eb9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f852aa56f60 RCX: 00007f852a943b19 RDX: 0000000020000140 RSI: 0000000000004c02 RDI: 0000000000000004 RBP: 00007f852a99df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1d0cd03f R14: 00007f8527eb9300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: ffffffff84ff9160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6410 2 locks held by kworker/u4:2/64: #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888008071138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8ac/0x14b0 kernel/workqueue.c:2253 #1: ffff88800f4c7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x8df/0x14b0 kernel/workqueue.c:2257 1 lock held by systemd-journal/103: 2 locks held by systemd-udevd/117: #0: ffff8880084106c0 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_open+0x19/0xd0 drivers/block/loop.c:1886 1 lock held by in:imklog/178: #0: ffff888008f17c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xf1/0x190 fs/file.c:994 1 lock held by syz-executor.3/287: #0: ffff8880084106c0 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 2 locks held by syz-executor.1/8313: #0: ffff88800b600080 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_put+0xfc/0x8a0 fs/block_dev.c:1793 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_release+0x1a/0x1f0 drivers/block/loop.c:1905 1 lock held by syz-executor.7/11686: #0: ffff88800b602600 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 1 lock held by syz-executor.6/11689: #0: ffff888008411340 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 1 lock held by syz-executor.0/11690: #0: ffff88800b6006c0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x30/0x530 fs/block_dev.c:1826 1 lock held by syz-executor.0/11691: #0: ffff8880481de0e0 (&type->s_umount_key#53/1){+.+.}-{3:3}, at: alloc_super+0x1e5/0xa90 fs/super.c:229 2 locks held by syz-executor.5/11698: #0: ffff88800b601980 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_put+0xfc/0x8a0 fs/block_dev.c:1793 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_release+0x1a/0x1f0 drivers/block/loop.c:1905 2 locks held by syz-executor.1/11700: #0: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: loop_set_status+0x87/0xa10 drivers/block/loop.c:1351 #1: ffff8880481de0e0 (&type->s_umount_key#54){++++}-{3:3}, at: __get_super.part.0+0x20d/0x2e0 fs/super.c:773 2 locks held by systemd-udevd/11702: #0: ffff88800b602600 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_open+0x19/0xd0 drivers/block/loop.c:1886 2 locks held by systemd-udevd/11705: #0: ffff888008411340 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_open+0x19/0xd0 drivers/block/loop.c:1886 2 locks held by systemd-udevd/11707: #0: ffff88800b6006c0 (&bdev->bd_mutex){+.+.}-{3:3}, at: __blkdev_get+0x457/0x1660 fs/block_dev.c:1503 #1: ffffffff85356148 (loop_ctl_mutex){+.+.}-{3:3}, at: lo_open+0x19/0xd0 drivers/block/loop.c:1886 =============================================