INFO: task syz-executor.1:7471 blocked for more than 143 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27504 pid: 7471 ppid: 6106 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x26c/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x418c1b RSP: 002b:00007ffee7b034c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000418c1b RDX: 00000000000003e7 RSI: 0000001b313200bc RDI: 0000000000000004 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000001b313200c4 R10: 00007ffee7b97090 R11: 0000000000000293 R12: 000000000055d9a0 R13: 000000000055d9a0 R14: 000000000055cf20 R15: 000000000055cfc8 INFO: task syz-executor.1:7475 blocked for more than 143 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:27888 pid: 7475 ppid: 6106 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 get_signal+0x158a/0x1cb0 kernel/signal.c:2591 arch_do_signal_or_restart+0x2a8/0x1f80 arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x202/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465ad9 RSP: 002b:00007fd93ec95188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffe00 RBX: 000000000055cfc8 RCX: 0000000000465ad9 RDX: ffffffffffffffff RSI: 000000000000ab03 RDI: 0000000000000003 RBP: 00000000004af756 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055cfc8 R13: 00007ffee7b0345f R14: 00007fd93ec95300 R15: 0000000000022000 INFO: task systemd-udevd:7478 blocked for more than 143 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:26576 pid: 7478 ppid: 3553 flags:0x00004024 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 io_schedule+0xba/0x130 kernel/sched/core.c:7215 wait_on_page_bit_common+0x406/0xa30 mm/filemap.c:1301 wait_on_page_bit mm/filemap.c:1362 [inline] wait_on_page_locked include/linux/pagemap.h:688 [inline] wait_on_page_read mm/filemap.c:3312 [inline] do_read_cache_page+0x63f/0xd00 mm/filemap.c:3355 read_mapping_page include/linux/pagemap.h:515 [inline] read_part_sector+0x12f/0x4b0 block/partitions/core.c:672 adfspart_check_ICS+0x95/0xae0 block/partitions/acorn.c:360 check_partition block/partitions/core.c:148 [inline] blk_add_partitions+0x39f/0xc70 block/partitions/core.c:609 bdev_disk_changed+0x1bb/0x3c0 fs/block_dev.c:1271 __blkdev_get+0x26a/0x8d0 fs/block_dev.c:1353 blkdev_get_by_dev fs/block_dev.c:1453 [inline] blkdev_get_by_dev+0x1a7/0x610 fs/block_dev.c:1425 blkdev_open+0xf6/0x220 fs/block_dev.c:1548 do_dentry_open+0x42a/0xfb0 fs/open.c:826 do_open fs/namei.c:3361 [inline] path_openat+0xa0d/0x22e0 fs/namei.c:3494 do_filp_open+0x17f/0x3a0 fs/namei.c:3521 do_sys_openat2+0x11e/0x360 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open fs/open.c:1207 [inline] __x64_sys_open+0xfd/0x1a0 fs/open.c:1207 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fda3bae7840 RSP: 002b:00007ffe1862ca58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000056116a87a7c0 RCX: 00007fda3bae7840 RDX: 0000561169408fe3 RSI: 00000000000a0800 RDI: 000056116a8848c0 RBP: 00007ffe1862cbd0 R08: 0000561169408670 R09: 0000000000000010 R10: 00007fda3b861d70 R11: 0000000000000246 R12: 00007ffe1862cb20 R13: 000056116a8879f0 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.0:7479 blocked for more than 144 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27504 pid: 7479 ppid: 6101 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x26c/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x418c1b RSP: 002b:00007ffc99c702e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000418c1b RDX: 00000000000003e7 RSI: 0000001b30e200bc RDI: 0000000000000004 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000001b30e200c4 R10: 00007ffc99d24090 R11: 0000000000000293 R12: 000000000055d9a0 R13: 000000000055d9a0 R14: 000000000055cf20 R15: 000000000055cf20 INFO: task syz-executor.0:7480 blocked for more than 144 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:27504 pid: 7480 ppid: 6101 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 get_signal+0x158a/0x1cb0 kernel/signal.c:2591 arch_do_signal_or_restart+0x2a8/0x1f80 arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x202/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465ad9 RSP: 002b:00007f0f56d45188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffe00 RBX: 000000000055cf20 RCX: 0000000000465ad9 RDX: ffffffffffffffff RSI: 000000000000ab03 RDI: 0000000000000003 RBP: 00000000004af756 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055cf20 R13: 00007ffc99c7027f R14: 00007f0f56d45300 R15: 0000000000022000 INFO: task systemd-udevd:7482 blocked for more than 144 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:26656 pid: 7482 ppid: 3553 flags:0x00004024 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 io_schedule+0xba/0x130 kernel/sched/core.c:7215 wait_on_page_bit_common+0x406/0xa30 mm/filemap.c:1301 wait_on_page_bit mm/filemap.c:1362 [inline] wait_on_page_locked include/linux/pagemap.h:688 [inline] wait_on_page_read mm/filemap.c:3312 [inline] do_read_cache_page+0x63f/0xd00 mm/filemap.c:3355 read_mapping_page include/linux/pagemap.h:515 [inline] read_part_sector+0x12f/0x4b0 block/partitions/core.c:672 adfspart_check_ICS+0x95/0xae0 block/partitions/acorn.c:360 check_partition block/partitions/core.c:148 [inline] blk_add_partitions+0x39f/0xc70 block/partitions/core.c:609 bdev_disk_changed+0x1bb/0x3c0 fs/block_dev.c:1271 __blkdev_get+0x26a/0x8d0 fs/block_dev.c:1353 blkdev_get_by_dev fs/block_dev.c:1453 [inline] blkdev_get_by_dev+0x1a7/0x610 fs/block_dev.c:1425 blkdev_open+0xf6/0x220 fs/block_dev.c:1548 do_dentry_open+0x42a/0xfb0 fs/open.c:826 do_open fs/namei.c:3361 [inline] path_openat+0xa0d/0x22e0 fs/namei.c:3494 do_filp_open+0x17f/0x3a0 fs/namei.c:3521 do_sys_openat2+0x11e/0x360 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open fs/open.c:1207 [inline] __x64_sys_open+0xfd/0x1a0 fs/open.c:1207 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fda3bae7840 RSP: 002b:00007ffe1862c468 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000056116a889050 RCX: 00007fda3bae7840 RDX: 0000561169408fe3 RSI: 00000000000a0800 RDI: 000056116a884b70 RBP: 00007ffe1862c5e0 R08: 0000561169408670 R09: 0000000000000010 R10: 00007fda3b861d70 R11: 0000000000000246 R12: 00007ffe1862c530 R13: 000056116a8879f0 R14: 0000000000000003 R15: 000000000000000e INFO: task systemd-udevd:7485 blocked for more than 144 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:26656 pid: 7485 ppid: 3553 flags:0x00004024 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 io_schedule+0xba/0x130 kernel/sched/core.c:7215 wait_on_page_bit_common+0x406/0xa30 mm/filemap.c:1301 wait_on_page_bit mm/filemap.c:1362 [inline] wait_on_page_locked include/linux/pagemap.h:688 [inline] wait_on_page_read mm/filemap.c:3312 [inline] do_read_cache_page+0x63f/0xd00 mm/filemap.c:3355 read_mapping_page include/linux/pagemap.h:515 [inline] read_part_sector+0x12f/0x4b0 block/partitions/core.c:672 adfspart_check_ICS+0x95/0xae0 block/partitions/acorn.c:360 check_partition block/partitions/core.c:148 [inline] blk_add_partitions+0x39f/0xc70 block/partitions/core.c:609 bdev_disk_changed+0x1bb/0x3c0 fs/block_dev.c:1271 __blkdev_get+0x26a/0x8d0 fs/block_dev.c:1353 blkdev_get_by_dev fs/block_dev.c:1453 [inline] blkdev_get_by_dev+0x1a7/0x610 fs/block_dev.c:1425 blkdev_open+0xf6/0x220 fs/block_dev.c:1548 do_dentry_open+0x42a/0xfb0 fs/open.c:826 do_open fs/namei.c:3361 [inline] path_openat+0xa0d/0x22e0 fs/namei.c:3494 do_filp_open+0x17f/0x3a0 fs/namei.c:3521 do_sys_openat2+0x11e/0x360 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open fs/open.c:1207 [inline] __x64_sys_open+0xfd/0x1a0 fs/open.c:1207 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fda3bae7840 RSP: 002b:00007ffe1862ca58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000056116a8879f0 RCX: 00007fda3bae7840 RDX: 0000561169408fe3 RSI: 00000000000a0800 RDI: 000056116a88b0c0 RBP: 00007ffe1862cbd0 R08: 0000561169408670 R09: 0000000000000010 R10: 00007fda3b861d70 R11: 0000000000000246 R12: 00007ffe1862cb20 R13: 000056116a887b80 R14: 0000000000000003 R15: 000000000000000e INFO: task syz-executor.3:7510 blocked for more than 145 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27504 pid: 7510 ppid: 6107 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x26c/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x418c1b RSP: 002b:00007ffd7a3f0390 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000418c1b RDX: 00000000000003e7 RSI: 0000001b315200bc RDI: 0000000000000004 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000001b315200c4 R10: 00007ffd7a3f8090 R11: 0000000000000293 R12: 000000000055d9a0 R13: 000000000055d9a0 R14: 000000000055cf20 R15: 000000000055cfc8 INFO: task syz-executor.3:7513 blocked for more than 145 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:28680 pid: 7513 ppid: 6107 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 blkdev_put+0x4a/0x480 fs/block_dev.c:1597 blkdev_close+0x8b/0xd0 fs/block_dev.c:1646 __fput+0x209/0x870 fs/file_table.c:280 task_work_run+0xc0/0x160 kernel/task_work.c:164 get_signal+0x158a/0x1cb0 kernel/signal.c:2591 arch_do_signal_or_restart+0x2a8/0x1f80 arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x202/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x40/0x80 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465ad9 RSP: 002b:00007fe11fb39188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffe00 RBX: 000000000055cfc8 RCX: 0000000000465ad9 RDX: ffffffffffffffff RSI: 000000000000ab03 RDI: 0000000000000003 RBP: 00000000004af756 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055cfc8 R13: 00007ffd7a3f032f R14: 00007fe11fb39300 R15: 0000000000022000 INFO: task systemd-udevd:7515 blocked for more than 145 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:26656 pid: 7515 ppid: 3553 flags:0x00004024 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0xfa1/0x2510 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 io_schedule+0xba/0x130 kernel/sched/core.c:7215 wait_on_page_bit_common+0x406/0xa30 mm/filemap.c:1301 wait_on_page_bit mm/filemap.c:1362 [inline] wait_on_page_locked include/linux/pagemap.h:688 [inline] wait_on_page_read mm/filemap.c:3312 [inline] do_read_cache_page+0x63f/0xd00 mm/filemap.c:3355 read_mapping_page include/linux/pagemap.h:515 [inline] read_part_sector+0x12f/0x4b0 block/partitions/core.c:672 adfspart_check_ICS+0x95/0xae0 block/partitions/acorn.c:360 check_partition block/partitions/core.c:148 [inline] blk_add_partitions+0x39f/0xc70 block/partitions/core.c:609 bdev_disk_changed+0x1bb/0x3c0 fs/block_dev.c:1271 __blkdev_get+0x26a/0x8d0 fs/block_dev.c:1353 blkdev_get_by_dev fs/block_dev.c:1453 [inline] blkdev_get_by_dev+0x1a7/0x610 fs/block_dev.c:1425 blkdev_open+0xf6/0x220 fs/block_dev.c:1548 do_dentry_open+0x42a/0xfb0 fs/open.c:826 do_open fs/namei.c:3361 [inline] path_openat+0xa0d/0x22e0 fs/namei.c:3494 do_filp_open+0x17f/0x3a0 fs/namei.c:3521 do_sys_openat2+0x11e/0x360 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_open fs/open.c:1211 [inline] __se_sys_open fs/open.c:1207 [inline] __x64_sys_open+0xfd/0x1a0 fs/open.c:1207 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fda3bae7840 RSP: 002b:00007ffe1862ca58 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000056116a889f30 RCX: 00007fda3bae7840 RDX: 0000561169408fe3 RSI: 00000000000a0800 RDI: 000056116a88a170 RBP: 00007ffe1862cbd0 R08: 0000561169408670 R09: 0000000000000010 R10: 00007fda3b861d70 R11: 0000000000000246 R12: 00007ffe1862cb20 R13: 000056116a886e90 R14: 0000000000000003 R15: 000000000000000e Showing all locks held in the system: 1 lock held by khungtaskd/1151: #0: ffffffff89db38c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x28c kernel/locking/lockdep.c:6333 1 lock held by in:imklog/5812: #0: ffff888118c23370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x9c/0xb0 fs/file.c:974 1 lock held by syz-executor.1/7471: #0: ffff888107a440e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.1/7475: #0: ffff888107a440e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by systemd-udevd/7478: #0: ffff888107a440e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107a440e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 1 lock held by syz-executor.0/7479: #0: ffff888107b580a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.0/7480: #0: ffff888107b580a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by systemd-udevd/7482: #0: ffff888107ba91a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107ba91a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 1 lock held by systemd-udevd/7485: #0: ffff888107b580a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107b580a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 1 lock held by syz-executor.3/7510: #0: ffff888107b8d160 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.3/7513: #0: ffff888107b8d160 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by systemd-udevd/7515: #0: ffff888107b8d160 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107b8d160 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 1 lock held by syz-executor.5/7536: #0: ffff888107bda1e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.5/7537: #0: ffff888107bda1e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by systemd-udevd/7542: #0: ffff888107bda1e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107bda1e0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 1 lock held by syz-executor.4/7563: #0: ffff888107ba91a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.4/7564: #0: ffff888107ba91a0 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.2/7568: #0: ffff888107b73120 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by syz-executor.2/7569: #0: ffff888107b73120 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_put+0x4a/0x480 fs/block_dev.c:1597 1 lock held by systemd-udevd/7571: #0: ffff888107b73120 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev fs/block_dev.c:1452 [inline] #0: ffff888107b73120 (&bdev->bd_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x19d/0x610 fs/block_dev.c:1425 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1151 Comm: khungtaskd Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x10c/0x14b lib/dump_stack.c:120 nmi_cpu_backtrace.cold+0x2d/0xac lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0x9cf/0xc00 kernel/hung_task.c:294 kthread+0x36f/0x450 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 58 Comm: kworker/u4:2 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy7 ieee80211_iface_work RIP: 0010:sta_get_last_rx_stats+0x172/0x200 net/mac80211/sta_info.c:2108 Code: 89 ff 48 c7 c6 98 da 7b 8b e8 2a 9f 72 fc 3b 44 24 04 41 89 c7 0f 82 73 ff ff ff 48 83 c4 18 4c 89 f0 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 48 c7 c7 64 dc 7b 8b e8 4f 19 81 fa e9 1e ff ff ff 48 89 RSP: 0018:ffffc90000227ba8 EFLAGS: 00000292 RAX: ffff88810b12a4f0 RBX: ffff88810b12a000 RCX: ffffffff87293edc RDX: 1ffff11025aec1ab RSI: 0000000000000008 RDI: ffff88812d760d58 RBP: ffff88812d761680 R08: 0000000000000000 R09: ffff88812d760d5f R10: ffffed1025aec1ab R11: ffff8881f6225148 R12: ffff88810b12a000 R13: fffffbfff1341e30 R14: ffff88812d761680 R15: ffff888124f58c00 FS: 0000000000000000(0000) GS:ffff8881f6200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f052a602020 CR3: 000000011fe26000 CR4: 0000000000350ef0 Call Trace: ieee80211_sta_last_active+0xe/0xb0 net/mac80211/sta_info.c:2544 ieee80211_ibss_sta_expire net/mac80211/ibss.c:1265 [inline] ieee80211_sta_merge_ibss net/mac80211/ibss.c:1305 [inline] ieee80211_ibss_work+0x45f/0xd10 net/mac80211/ibss.c:1711 process_one_work+0x84c/0x13d0 kernel/workqueue.c:2275 worker_thread+0x598/0xf80 kernel/workqueue.c:2421 kthread+0x36f/0x450 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294