Bluetooth: hci5: command 0x0406 tx timeout Bluetooth: hci2: command 0x0406 tx timeout Bluetooth: hci4: command 0x0406 tx timeout ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.3:9844 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D28232 9844 8511 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:1015 [inline] __mutex_lock+0x4ba/0x1190 kernel/locking/mutex.c:1083 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1098 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: 0033:0x41926b Code: Bad RIP value. RSP: 002b:00007ffc9769ccc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000041926b RDX: 0000001b2fa200c0 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2fa200c4 R10: 00058d1c8bf8fab4 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000056c9e0 R14: 000000000056bf60 R15: 000000000000d829 INFO: task systemd-udevd:9851 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9851 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: 0033:0x7fcd8f9be840 Code: Bad RIP value. RSP: 002b:00007fff3df2bc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055e767391880 RCX: 00007fcd8f9be840 RDX: 000055e7658effe3 RSI: 00000000000a0800 RDI: 000055e767393e60 RBP: 00007fff3df2bd90 R08: 000055e7658ef670 R09: 0000000000000010 R10: 000055e7658efd0c R11: 0000000000000246 R12: 00007fff3df2bce0 R13: 000055e767392e30 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9858 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25448 9858 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: 0033:0x7fcd8f9be840 Code: Bad RIP value. RSP: 002b:00007fff3df2bc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055e767394bd0 RCX: 00007fcd8f9be840 RDX: 000055e7658effe3 RSI: 00000000000a0800 RDI: 000055e767393370 RBP: 00007fff3df2bd90 R08: 000055e7658ef670 R09: 0000000000000010 R10: 000055e7658efd0c R11: 0000000000000246 R12: 00007fff3df2bce0 R13: 000055e767394cd0 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.0:9921 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28232 9921 8519 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:1015 [inline] __mutex_lock+0x4ba/0x1190 kernel/locking/mutex.c:1083 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1098 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: 0033:0x41926b Code: ac 24 d8 00 00 00 48 8d ac 24 d8 00 00 00 83 3d 36 a4 2c 01 00 0f 85 49 04 00 00 48 8b 84 24 e8 00 00 00 48 85 c0 0f 84 9b 07 <00> 00 0f b6 48 17 83 e1 1f 80 f9 16 0f 85 1a 07 00 00 48 83 78 30 RSP: 002b:00007ffc26d5c380 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000041926b RDX: 0000001b301200c0 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b301200c4 R10: 0016694e500f36cf R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000056c9e0 R14: 000000000056bf60 R15: 000000000000da6d INFO: task syz-executor.5:9948 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D28232 9948 8516 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:1015 [inline] __mutex_lock+0x4ba/0x1190 kernel/locking/mutex.c:1083 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1098 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: 0033:0x41926b Code: ac 24 d8 00 00 00 48 8d ac 24 d8 00 00 00 83 3d 36 a4 2c 01 00 0f 85 49 04 00 00 48 8b 84 24 e8 00 00 00 48 85 c0 0f 84 9b 07 <00> 00 0f b6 48 17 83 e1 1f 80 f9 16 0f 85 1a 07 00 00 48 83 78 30 RSP: 002b:00007fffe0f6ca30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000041926b RDX: 0000001b2fe200c0 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2fe200c4 R10: 001a9a8bae455549 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000056c9e0 R14: 000000000056bf60 R15: 000000000000dafa INFO: task syz-executor.4:9952 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28232 9952 8513 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:1015 [inline] __mutex_lock+0x4ba/0x1190 kernel/locking/mutex.c:1083 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1098 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: 0033:0x41926b Code: ac 24 d8 00 00 00 48 8d ac 24 d8 00 00 00 83 3d 36 a4 2c 01 00 0f 85 49 04 00 00 48 8b 84 24 e8 00 00 00 48 85 c0 0f 84 9b 07 <00> 00 0f b6 48 17 83 e1 1f 80 f9 16 0f 85 1a 07 00 00 48 83 78 30 RSP: 002b:00007ffd691fd980 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000041926b RDX: 0000001b2fc200c0 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b2fc200c4 R10: 001b2696f4a748d1 R11: 0000000000000293 R12: 000000000056c9e0 R13: 000000000056c9e0 R14: 000000000056bf60 R15: 000000000000db0d INFO: task systemd-udevd:9953 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9953 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: 0033:0x7fcd8f9be840 Code: Bad RIP value. RSP: 002b:00007fff3df2b628 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055e767380910 RCX: 00007fcd8f9be840 RDX: 000055e7658effe3 RSI: 00000000000a0800 RDI: 000055e767394fb0 RBP: 00007fff3df2b7a0 R08: 000055e7658ef670 R09: 0000000000000010 R10: 000055e7658efd0c R11: 0000000000000246 R12: 00007fff3df2b6f0 R13: 000055e767391880 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9967 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9967 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: 0033:0x7fcd8f9be840 Code: Bad RIP value. RSP: 002b:00007fff3df2b628 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055e76738e760 RCX: 00007fcd8f9be840 RDX: 000055e7658effe3 RSI: 00000000000a0800 RDI: 000055e767393200 RBP: 00007fff3df2b7a0 R08: 000055e7658ef670 R09: 0000000000000010 R10: 000055e7658efd0c R11: 0000000000000246 R12: 00007fff3df2b6f0 R13: 000055e7673807a0 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:9975 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. systemd-udevd D25992 9975 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: 0033:0x7fcd8f9be840 Code: Bad RIP value. RSP: 002b:00007fff3df2bc18 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000055e767393140 RCX: 00007fcd8f9be840 RDX: 000055e7658effe3 RSI: 00000000000a0800 RDI: 000055e767384720 RBP: 00007fff3df2bd90 R08: 000055e7658ef670 R09: 0000000000000010 R10: 000055e7658efd0c R11: 0000000000000246 R12: 00007fff3df2bce0 R13: 000055e7673842a0 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.2:10004 blocked for more than 140 seconds. Not tainted 4.19.195-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28248 10004 8509 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:1015 [inline] __mutex_lock+0x4ba/0x1190 kernel/locking/mutex.c:1083 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1098 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: 0033:0x466459 Code: 40 48 89 44 24 78 48 8b 6c 24 58 48 83 c4 60 c3 48 8d 0d 7a d0 1d 00 48 89 0c 24 48 8d 15 57 cf 27 01 48 89 54 24 08 0f 57 c0 <0f> 11 44 24 10 48 89 44 24 20 e8 d8 6c fe ff 48 8b 4c 24 28 48 8b RSP: 002b:00007f5dd1a26188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000006 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe71ecaf9f R14: 00007f5dd1a26300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1558: #0: 00000000916ce804 (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a kernel/locking/lockdep.c:4443 1 lock held by in:imklog/7830: #0: 000000005064c8eb (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:767 1 lock held by syz-executor.3/9844: #0: 000000001570a74c (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by systemd-udevd/9851: #0: 0000000072d0cbfa (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9858: #0: 000000001570a74c (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.0/9921: #0: 0000000072d0cbfa (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.5/9948: #0: 00000000b80d2401 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.4/9952: #0: 00000000b1dca405 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by systemd-udevd/9953: #0: 00000000b80d2401 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9967: #0: 00000000a2ad45c6 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by systemd-udevd/9975: #0: 00000000b1dca405 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.2/10004: #0: 0000000072c2bb2d (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 1 lock held by syz-executor.2/10012: #0: 0000000072c2bb2d (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.2/10015: #0: 0000000072c2bb2d (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x19a/0x1200 fs/block_dev.c:1478 1 lock held by syz-executor.1/10007: #0: 00000000a2ad45c6 (&bdev->bd_mutex){+.+.}, at: blkdev_put+0x25/0x470 fs/block_dev.c:1839 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1558 Comm: khungtaskd Not tainted 4.19.195-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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4684 Comm: systemd-journal Not tainted 4.19.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mark_lock+0x95/0x12f0 kernel/locking/lockdep.c:3106 Code: 74 09 80 fa 03 0f 8e 98 04 00 00 25 ff 1f 00 00 4c 69 e0 50 01 00 00 49 81 ec 50 01 00 00 49 81 c4 40 45 5f 8b 49 8d 7c 24 30 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f RSP: 0018:ffff8880a1b7fc08 EFLAGS: 00000086 RAX: 000000000000002e RBX: ffff8880a1b74a88 RCX: 1ffff1101436e955 RDX: 0000000000000000 RSI: ffff8880a1b74a88 RDI: ffffffff8b5f8080 RBP: ffff8880a1b7fc50 R08: ffff8880a1b74aa8 R09: 0000000000000000 R10: ffff8880a1b74a88 R11: ffff8880a1b74a74 R12: ffffffff8b5f8050 R13: 0000000000000100 R14: 0000000000000008 R15: ffff8880a1b74200 FS: 00007fc20d7ec8c0(0000) GS:ffff8880ba200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc20aca0000 CR3: 00000000a1a89000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_acquire+0x764/0x47c0 kernel/locking/lockdep.c:3377 lock_acquire+0x180/0x3a0 kernel/locking/lockdep.c:3908 rcu_lock_acquire include/linux/rcupdate.h:242 [inline] rcu_read_lock include/linux/rcupdate.h:627 [inline] __task_pid_nr_ns+0x39/0x3d0 kernel/pid.c:427 task_tgid_vnr include/linux/sched.h:1305 [inline] __ia32_sys_getpid+0x19/0x20 kernel/sys.c:890 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fc20ca84f17 Code: ff ff ff 48 8b 4d a0 0f b7 51 fe 48 8b 4d a8 66 89 54 08 fe e9 1a ff ff ff 66 2e 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 RSP: 002b:00007fff971f9798 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 RAX: ffffffffffffffda RBX: 000000000000124c RCX: 00007fc20ca84f17 RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 000055c816cf51e0 RBP: 000055c816cf51e0 R08: 00007fff972c7000 R09: 0000003ae9b3b0c7 R10: 001d48191f0a0e00 R11: 0000000000000202 R12: ffffffffffffffff R13: 00007fff971f9868 R14: 000055c816507958 R15: 0005c4fe1d6d2440