UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/09/12 12:00 (1000) ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task kworker/0:3:8953 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:3 D25208 8953 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task dio/sda1:10376 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. dio/sda1 D30304 10376 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 process_scheduled_works kernel/workqueue.c:2212 [inline] rescuer_thread+0x5b4/0xce0 kernel/workqueue.c:2403 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:12:6504 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:12 D28216 6504 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:0:15496 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:0 D28768 15496 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task syz-executor.0:29965 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D28224 29965 11723 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __inode_dio_wait fs/inode.c:2068 [inline] inode_dio_wait+0x22a/0x270 fs/inode.c:2086 ext4_setattr+0x16c6/0x2560 fs/ext4/inode.c:5690 notify_change+0x70b/0xfc0 fs/attr.c:334 do_truncate+0x134/0x1f0 fs/open.c:63 handle_truncate fs/namei.c:3009 [inline] do_last fs/namei.c:3427 [inline] path_openat+0x2308/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f3508b235a9 Code: Bad RIP value. RSP: 002b:00007f3507455168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f3508c45120 RCX: 00007f3508b235a9 RDX: 0000000000000000 RSI: 0000000000000096 RDI: 0000000020000280 RBP: 00007f3508b7e580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe33e63eef R14: 00007f3507455300 R15: 0000000000022000 INFO: task kworker/0:1:29967 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:1 D28768 29967 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:2:29969 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:2 D28768 29969 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:4:29970 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:4 D28768 29970 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:5:29971 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:5 D28768 29971 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 INFO: task kworker/0:6:29972 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:6 D28768 29972 2 0x80000000 Workqueue: dio/sda1 dio_aio_complete_work Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline] rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618 call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x4f/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:748 [inline] __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ext4_sync_file+0xa35/0x1420 fs/ext4/fsync.c:118 vfs_fsync_range+0x13a/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2750 [inline] dio_complete+0x763/0xac0 fs/direct-io.c:329 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Showing all locks held in the system: 1 lock held by khungtaskd/1570: #0: 000000004cf1ee52 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7805: #0: 00000000a522413f (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 3 locks held by syz-fuzzer/13826: #0: 000000008d1133ca (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000008d1133ca (sb_writers#3){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000ebe8c755 (&type->i_mutex_dir_key#3/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline] #1: 00000000ebe8c755 (&type->i_mutex_dir_key#3/1){+.+.}, at: do_unlinkat+0x27d/0x660 fs/namei.c:4051 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: vfs_unlink+0xca/0x4e0 fs/namei.c:3993 3 locks held by kworker/0:3/8953: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000006b6f25fb ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by dio/sda1/10376: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000b521e7ce ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:12/6504: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000004121bd5b ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:0/15496: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000d45dc6cc ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 2 locks held by syz-executor.0/29965: #0: 000000008d1133ca (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline] #0: 000000008d1133ca (sb_writers#3){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360 #1: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #1: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: do_truncate+0x125/0x1f0 fs/open.c:61 3 locks held by kworker/0:1/29967: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000073cf8e46 ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:2/29969: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000003c02f305 ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:4/29970: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000315f45bd ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:5/29971: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000729a6ceb ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:6/29972: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000775fb38e ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:7/29973: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000ed1c0926 ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:9/29974: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000008797d44f ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:10/29975: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 0000000034b45da2 ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 3 locks held by kworker/0:11/29976: #0: 0000000071ddcd37 ((wq_completion)"dio/%s"sb->s_id){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 00000000247841a1 ((work_completion)(&dio->complete_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: inode_lock include/linux/fs.h:748 [inline] #2: 00000000f9e2b18b (&sb->s_type->i_mutex_key#10){+.+.}, at: __generic_file_fsync+0xb0/0x1f0 fs/libfs.c:989 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 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: 4686 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:677 [inline] RIP: 0010:is_bpf_text_address+0x109/0x1b0 kernel/bpf/core.c:548 Code: e8 ec 73 f5 ff 48 c7 c2 75 11 6d 81 be 01 00 00 00 48 c7 c7 a0 5f f8 89 e8 54 38 de ff 44 89 e0 5b 5d 41 5c c3 e8 c7 73 f5 ff 82 7a e4 ff 31 ff 89 c3 89 c6 e8 e7 74 f5 ff 84 db 75 b8 e8 ae RSP: 0018:ffff8880a13dfaf0 EFLAGS: 00000093 RAX: ffff8880a13d0400 RBX: 0000000000000000 RCX: ffffffff816d1171 RDX: 0000000000000000 RSI: ffffffff816d11a9 RDI: 0000000000000001 RBP: 00007f5f877be9c7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000074071 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880a13dfeb0 R15: 0000000000000000 FS: 00007f5f885038c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5f85bd3000 CR3: 00000000a1245000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kernel_text_address kernel/extable.c:152 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:122 __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x126/0x1f0 mm/kasan/kasan.c:521 __cache_free mm/slab.c:3503 [inline] kmem_cache_free+0x7f/0x260 mm/slab.c:3765 __put_cred+0x1de/0x250 kernel/cred.c:151 put_cred include/linux/cred.h:279 [inline] do_faccessat+0x64e/0x7a0 fs/open.c:438 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5f877be9c7 Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff32ab43e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00007fff32ab7410 RCX: 00007f5f877be9c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055bb1f49c9a3 RBP: 00007fff32ab4530 R08: 000055bb1f4923e5 R09: 0000000000000018 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 000055bb1f6238a0 R15: 00007fff32ab4a20