Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci0: command 0x0406 tx timeout INFO: task systemd-udevd:9914 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9914 4699 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 io_schedule+0x1c/0x70 kernel/sched/core.c:5181 wait_on_page_bit_common mm/filemap.c:1123 [inline] wait_on_page_bit+0x1c1/0x360 mm/filemap.c:1156 wait_on_page_locked include/linux/pagemap.h:530 [inline] wait_on_page_read mm/filemap.c:2795 [inline] do_read_cache_page.part.5+0x32b/0xc90 mm/filemap.c:2834 do_read_cache_page include/linux/pagemap.h:102 [inline] read_cache_page+0x40/0x70 mm/filemap.c:2924 read_mapping_page include/linux/pagemap.h:402 [inline] read_dev_sector+0xbd/0x430 block/partition-generic.c:671 read_part_sector block/partitions/check.h:38 [inline] adfspart_check_ICS+0x109/0xd30 block/partitions/acorn.c:366 check_partition+0x317/0x5e0 block/partitions/check.c:167 rescan_partitions+0x19e/0x8c0 block/partition-generic.c:535 bdev_disk_changed+0x120/0x170 fs/block_dev.c:1435 __blkdev_get+0xcbe/0x1200 fs/block_dev.c:1561 blkdev_get+0x271/0x8c0 fs/block_dev.c:1627 blkdev_open+0x19f/0x200 fs/block_dev.c:1788 do_dentry_open+0x3f1/0x1020 fs/open.c:796 vfs_open+0x9a/0xc0 fs/open.c:902 do_last fs/namei.c:3421 [inline] path_openat+0x925/0x2900 fs/namei.c:3537 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a4ddb4840 Code: Bad RIP value. RSP: 002b:00007ffd0000a9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055a6a2d41060 RCX: 00007f8a4ddb4840 RDX: 000055a6a2cb2fe3 RSI: 00000000000a0800 RDI: 000055a6a2d3bdc0 RBP: 00007ffd0000ab20 R08: 000055a6a2cb2670 R09: 0000000000000010 R10: 000055a6a2cb2d0c R11: 0000000000000246 R12: 00007ffd0000aa70 R13: 000055a6a2d4d880 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.3:9918 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28232 9918 8477 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x4c3/0x1200 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 blkdev_put+0x25/0x470 fs/block_dev.c:1839 blkdev_close+0x88/0xd0 fs/block_dev.c:1888 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 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+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x418e1b Code: Bad RIP value. RSP: 002b:00007ffc422c13b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000418e1b RDX: 00000000000003e7 RSI: 0000001b2d8200d8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2d8200e0 R10: 000149132ba5246f R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000000ef19 R14: 000000000056c9e0 R15: 000000000056bf60 INFO: task syz-executor.1:9921 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D28168 9921 8481 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x4c3/0x1200 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 blkdev_put+0x25/0x470 fs/block_dev.c:1839 blkdev_close+0x88/0xd0 fs/block_dev.c:1888 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 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+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x418e1b Code: 00 00 48 83 c4 80 48 89 6c 24 78 48 8d 6c 24 78 31 c0 31 c9 48 89 4c 24 60 48 89 44 24 40 90 48 8d 15 61 cf 1d 01 48 89 14 24 <0f> 1f 44 00 00 e8 7b 2a ff ff 48 8b 05 54 cf 1d 01 48 c7 05 49 cf RSP: 002b:00007ffea1ca0720 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000418e1b RDX: 00000000000003e7 RSI: 0000001b2db200d8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2db200e0 R10: 00029c0467a6f5f7 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000000ef45 R14: 000000000056c9e0 R15: 000000000056bf60 INFO: task systemd-udevd:9935 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9935 4699 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 io_schedule+0x1c/0x70 kernel/sched/core.c:5181 wait_on_page_bit_common mm/filemap.c:1123 [inline] wait_on_page_bit+0x1c1/0x360 mm/filemap.c:1156 wait_on_page_locked include/linux/pagemap.h:530 [inline] wait_on_page_read mm/filemap.c:2795 [inline] do_read_cache_page.part.5+0x32b/0xc90 mm/filemap.c:2834 do_read_cache_page include/linux/pagemap.h:102 [inline] read_cache_page+0x40/0x70 mm/filemap.c:2924 read_mapping_page include/linux/pagemap.h:402 [inline] read_dev_sector+0xbd/0x430 block/partition-generic.c:671 read_part_sector block/partitions/check.h:38 [inline] adfspart_check_ICS+0x109/0xd30 block/partitions/acorn.c:366 check_partition+0x317/0x5e0 block/partitions/check.c:167 rescan_partitions+0x19e/0x8c0 block/partition-generic.c:535 bdev_disk_changed+0x120/0x170 fs/block_dev.c:1435 __blkdev_get+0xcbe/0x1200 fs/block_dev.c:1561 blkdev_get+0x271/0x8c0 fs/block_dev.c:1627 blkdev_open+0x19f/0x200 fs/block_dev.c:1788 do_dentry_open+0x3f1/0x1020 fs/open.c:796 vfs_open+0x9a/0xc0 fs/open.c:902 do_last fs/namei.c:3421 [inline] path_openat+0x925/0x2900 fs/namei.c:3537 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a4ddb4840 Code: Bad RIP value. RSP: 002b:00007ffd0000a3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055a6a2d50bd0 RCX: 00007f8a4ddb4840 RDX: 000055a6a2cb2fe3 RSI: 00000000000a0800 RDI: 000055a6a2d3e3b0 RBP: 00007ffd0000a530 R08: 000055a6a2cb2670 R09: 0000000000000010 R10: 000055a6a2cb2d0c R11: 0000000000000246 R12: 00007ffd0000a480 R13: 000055a6a2d4f2e0 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9937 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9937 4699 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 io_schedule+0x1c/0x70 kernel/sched/core.c:5181 wait_on_page_bit_common mm/filemap.c:1123 [inline] wait_on_page_bit+0x1c1/0x360 mm/filemap.c:1156 wait_on_page_locked include/linux/pagemap.h:530 [inline] wait_on_page_read mm/filemap.c:2795 [inline] do_read_cache_page.part.5+0x32b/0xc90 mm/filemap.c:2834 do_read_cache_page include/linux/pagemap.h:102 [inline] read_cache_page+0x40/0x70 mm/filemap.c:2924 read_mapping_page include/linux/pagemap.h:402 [inline] read_dev_sector+0xbd/0x430 block/partition-generic.c:671 read_part_sector block/partitions/check.h:38 [inline] adfspart_check_ICS+0x109/0xd30 block/partitions/acorn.c:366 check_partition+0x317/0x5e0 block/partitions/check.c:167 rescan_partitions+0x19e/0x8c0 block/partition-generic.c:535 bdev_disk_changed+0x120/0x170 fs/block_dev.c:1435 __blkdev_get+0xcbe/0x1200 fs/block_dev.c:1561 blkdev_get+0x271/0x8c0 fs/block_dev.c:1627 blkdev_open+0x19f/0x200 fs/block_dev.c:1788 do_dentry_open+0x3f1/0x1020 fs/open.c:796 vfs_open+0x9a/0xc0 fs/open.c:902 do_last fs/namei.c:3421 [inline] path_openat+0x925/0x2900 fs/namei.c:3537 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a4ddb4840 Code: Bad RIP value. RSP: 002b:00007ffd0000a9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055a6a2d50eb0 RCX: 00007f8a4ddb4840 RDX: 000055a6a2cb2fe3 RSI: 00000000000a0800 RDI: 000055a6a2d4ecd0 RBP: 00007ffd0000ab20 R08: 000055a6a2cb2670 R09: 0000000000000010 R10: 000055a6a2cb2d0c R11: 0000000000000246 R12: 00007ffd0000aa70 R13: 000055a6a2d4d880 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9955 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9955 4699 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 io_schedule+0x1c/0x70 kernel/sched/core.c:5181 wait_on_page_bit_common mm/filemap.c:1123 [inline] wait_on_page_bit+0x1c1/0x360 mm/filemap.c:1156 wait_on_page_locked include/linux/pagemap.h:530 [inline] wait_on_page_read mm/filemap.c:2795 [inline] do_read_cache_page.part.5+0x32b/0xc90 mm/filemap.c:2834 do_read_cache_page include/linux/pagemap.h:102 [inline] read_cache_page+0x40/0x70 mm/filemap.c:2924 read_mapping_page include/linux/pagemap.h:402 [inline] read_dev_sector+0xbd/0x430 block/partition-generic.c:671 read_part_sector block/partitions/check.h:38 [inline] adfspart_check_ICS+0x109/0xd30 block/partitions/acorn.c:366 check_partition+0x317/0x5e0 block/partitions/check.c:167 rescan_partitions+0x19e/0x8c0 block/partition-generic.c:535 bdev_disk_changed+0x120/0x170 fs/block_dev.c:1435 __blkdev_get+0xcbe/0x1200 fs/block_dev.c:1561 blkdev_get+0x271/0x8c0 fs/block_dev.c:1627 blkdev_open+0x19f/0x200 fs/block_dev.c:1788 do_dentry_open+0x3f1/0x1020 fs/open.c:796 vfs_open+0x9a/0xc0 fs/open.c:902 do_last fs/namei.c:3421 [inline] path_openat+0x925/0x2900 fs/namei.c:3537 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a4ddb4840 Code: Bad RIP value. RSP: 002b:00007ffd0000a9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055a6a2d4ef60 RCX: 00007f8a4ddb4840 RDX: 000055a6a2cb2fe3 RSI: 00000000000a0800 RDI: 000055a6a2d50e20 RBP: 00007ffd0000ab20 R08: 000055a6a2cb2670 R09: 0000000000000010 R10: 000055a6a2cb2d0c R11: 0000000000000246 R12: 00007ffd0000aa70 R13: 000055a6a2d4a6e0 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9956 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9956 4699 0x00000100 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 io_schedule+0x1c/0x70 kernel/sched/core.c:5181 wait_on_page_bit_common mm/filemap.c:1123 [inline] wait_on_page_bit+0x1c1/0x360 mm/filemap.c:1156 wait_on_page_locked include/linux/pagemap.h:530 [inline] wait_on_page_read mm/filemap.c:2795 [inline] do_read_cache_page.part.5+0x32b/0xc90 mm/filemap.c:2834 do_read_cache_page include/linux/pagemap.h:102 [inline] read_cache_page+0x40/0x70 mm/filemap.c:2924 read_mapping_page include/linux/pagemap.h:402 [inline] read_dev_sector+0xbd/0x430 block/partition-generic.c:671 read_part_sector block/partitions/check.h:38 [inline] adfspart_check_ICS+0x109/0xd30 block/partitions/acorn.c:366 check_partition+0x317/0x5e0 block/partitions/check.c:167 rescan_partitions+0x19e/0x8c0 block/partition-generic.c:535 bdev_disk_changed+0x120/0x170 fs/block_dev.c:1435 __blkdev_get+0xcbe/0x1200 fs/block_dev.c:1561 blkdev_get+0x271/0x8c0 fs/block_dev.c:1627 blkdev_open+0x19f/0x200 fs/block_dev.c:1788 do_dentry_open+0x3f1/0x1020 fs/open.c:796 vfs_open+0x9a/0xc0 fs/open.c:902 do_last fs/namei.c:3421 [inline] path_openat+0x925/0x2900 fs/namei.c:3537 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a4ddb4840 Code: Bad RIP value. RSP: 002b:00007ffd0000a9a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055a6a2d4ef60 RCX: 00007f8a4ddb4840 RDX: 000055a6a2cb2fe3 RSI: 00000000000a0800 RDI: 000055a6a2d4ad10 RBP: 00007ffd0000ab20 R08: 000055a6a2cb2670 R09: 0000000000000010 R10: 000055a6a2cb2d0c R11: 0000000000000246 R12: 00007ffd0000aa70 R13: 000055a6a2d56f60 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.0:9961 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28232 9961 8486 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x4c3/0x1200 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 blkdev_put+0x25/0x470 fs/block_dev.c:1839 blkdev_close+0x88/0xd0 fs/block_dev.c:1888 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 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+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x418e1b Code: 00 00 48 83 c4 80 48 89 6c 24 78 48 8d 6c 24 78 31 c0 31 c9 48 89 4c 24 60 48 89 44 24 40 90 48 8d 15 61 cf 1d 01 48 89 14 24 <0f> 1f 44 00 00 e8 7b 2a ff ff 48 8b 05 54 cf 1d 01 48 c7 05 49 cf RSP: 002b:00007ffd3b799940 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000418e1b RDX: 00000000000003e7 RSI: 0000001b2e1200d8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2e1200e0 R10: 0008e7539e3c9f13 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000000f018 R14: 000000000056c9e0 R15: 000000000056bf60 INFO: task syz-executor.5:9970 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28232 9970 8487 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x4c3/0x1200 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 blkdev_put+0x25/0x470 fs/block_dev.c:1839 blkdev_close+0x88/0xd0 fs/block_dev.c:1888 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 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+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x418e1b Code: 00 00 48 83 c4 80 48 89 6c 24 78 48 8d 6c 24 78 31 c0 31 c9 48 89 4c 24 60 48 89 44 24 40 90 48 8d 15 61 cf 1d 01 48 89 14 24 <0f> 1f 44 00 00 e8 7b 2a ff ff 48 8b 05 54 cf 1d 01 48 c7 05 49 cf RSP: 002b:00007ffd8758e9c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000418e1b RDX: 00000000000003e7 RSI: 0000001b2df200d8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2df200e0 R10: 000bbd6caebcf0e5 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000000f077 R14: 000000000056c9e0 R15: 000000000056bf60 INFO: task syz-executor.2:9971 blocked for more than 140 seconds. Not tainted 4.19.183-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28232 9971 8480 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x80c/0x1f70 kernel/sched/core.c:3517 schedule+0x7f/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1002 [inline] __mutex_lock+0x4c3/0x1200 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 blkdev_put+0x25/0x470 fs/block_dev.c:1839 blkdev_close+0x88/0xd0 fs/block_dev.c:1888 __fput+0x249/0x7f0 fs/file_table.c:278 ____fput+0x9/0x10 fs/file_table.c:309 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 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+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x418e1b Code: 00 00 48 83 c4 80 48 89 6c 24 78 48 8d 6c 24 78 31 c0 31 c9 48 89 4c 24 60 48 89 44 24 40 90 48 8d 15 61 cf 1d 01 48 89 14 24 <0f> 1f 44 00 00 e8 7b 2a ff ff 48 8b 05 54 cf 1d 01 48 c7 05 49 cf RSP: 002b:00007fff75423420 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000418e1b RDX: 00000000000003e7 RSI: 0000001b2da200d8 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2da200e0 R10: 000bcde7df9f82f5 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000000f07a R14: 000000000056c9e0 R15: 000000000056bf60 Showing all locks held in the system: 1 lock held by khungtaskd/1567: #0: 000000006d537f6f (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a kernel/locking/lockdep.c:4442 1 lock held by systemd-udevd/9914: #0: 00000000921a4384 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.3/9918: #0: 0000000091c869f0 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.1/9921: #0: 0000000081dfebd7 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by systemd-udevd/9935: #0: 00000000d18484e2 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9937: #0: 0000000091c869f0 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9955: #0: 000000005f41c293 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9956: #0: 0000000081dfebd7 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.0/9961: #0: 00000000d18484e2 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.5/9970: #0: 000000005f41c293 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.2/9971: #0: 00000000921a4384 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.4/9973: #0: 0000000006b24d33 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by systemd-udevd/9985: #0: 0000000006b24d33 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1567 Comm: khungtaskd Not tainted 4.19.183-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+0x17c/0x226 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.0+0x3c/0x78 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xf6/0x120 lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x5c3/0xb40 kernel/hung_task.c:287 kthread+0x347/0x410 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4684 Comm: systemd-journal Not tainted 4.19.183-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__mutex_init+0x1/0x120 kernel/locking/mutex.c:40 Code: 28 e8 13 f9 ff ff 48 83 c4 08 5b 5d c3 e8 f7 18 46 00 eb cc 48 89 75 f0 e8 ec 18 46 00 48 8b 75 f0 eb db 90 90 90 90 90 90 55 <48> 89 e5 41 56 49 89 d6 41 55 49 89 f5 be 08 00 00 00 41 54 53 48 RSP: 0018:ffff8880a10b7aa8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8880a1978840 RCX: 0000000000000000 RDX: ffffffff8baf3f00 RSI: ffffffff881358c0 RDI: ffff8880a19788c0 RBP: ffff8880a10b7ad8 R08: ffffed101432f117 R09: 0000000000000000 R10: ffffed101432f116 R11: ffff8880a19788b7 R12: ffff8880a19789d8 R13: 0000000000008042 R14: ffff8880a10b7d10 R15: ffff8880a10b7e80 FS: 00007fe513e6a8c0(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe51131e008 CR3: 00000000a1f59000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: alloc_empty_file+0x45/0x110 fs/file_table.c:150 path_openat+0x107/0x2900 fs/namei.c:3526 do_filp_open+0x177/0x250 fs/namei.c:3567 do_sys_open+0x1dc/0x350 fs/open.c:1085 __do_sys_open fs/open.c:1103 [inline] __se_sys_open fs/open.c:1098 [inline] __x64_sys_open+0x79/0xb0 fs/open.c:1098 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fe5133f9840 Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 RSP: 002b:00007ffd87f7cf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007ffd87f7d220 RCX: 00007fe5133f9840 RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055dee0dffba0 RBP: 000000000000000d R08: 000000000000c0ff R09: 00000000ffffffff R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff R13: 000055dee0df4040 R14: 00007ffd87f7d1e0 R15: 000055dee0dff480