Bluetooth: hci5: command 0x0406 tx timeout NOHZ: local_softirq_pending 08 NOHZ: local_softirq_pending 08 NOHZ: local_softirq_pending 08 NOHZ: local_softirq_pending 08 INFO: task syz-executor.3:10002 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D26160 10002 8556 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x152/0x1a0 fs/buffer.c:3164 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3181 __ext4_handle_dirty_metadata+0x17a/0x520 fs/ext4/ext4_jbd2.c:300 ext4_convert_inline_data_nolock+0x4d6/0xbe0 fs/ext4/inline.c:1237 ext4_convert_inline_data+0x299/0x3c0 fs/ext4/inline.c:2021 ext4_fallocate+0xdd/0x18f0 fs/ext4/extents.c:4929 vfs_fallocate+0x2ba/0x770 fs/open.c:319 ksys_fallocate+0x3c/0x80 fs/open.c:342 __do_sys_fallocate fs/open.c:350 [inline] __se_sys_fallocate fs/open.c:348 [inline] __x64_sys_fallocate+0x92/0xf0 fs/open.c:348 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f083bd6a188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000100000001 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002811fdff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff54e332bf R14: 00007f083bd6a300 R15: 0000000000022000 INFO: task syz-executor.3:10129 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.3 D26560 10129 8556 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] write_dirty_buffer+0x94/0xa0 fs/buffer.c:3143 fsync_buffers_list fs/buffer.c:703 [inline] sync_mapping_buffers+0x2a9/0x830 fs/buffer.c:521 __generic_file_fsync+0xb4/0x1a0 fs/libfs.c:982 ext4_sync_file+0x412/0xef0 fs/ext4/fsync.c:120 vfs_fsync_range+0xee/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2709 [inline] ext4_file_write_iter+0x7f6/0xfe0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x446/0x880 fs/read_write.c:487 vfs_write+0x150/0x4f0 fs/read_write.c:549 ksys_write+0xcd/0x1b0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:607 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f083bd49188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000000082 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fff54e332bf R14: 00007f083bd49300 R15: 0000000000022000 INFO: task syz-executor.0:10035 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D26680 10035 8564 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x152/0x1a0 fs/buffer.c:3164 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3181 __ext4_handle_dirty_metadata+0x17a/0x520 fs/ext4/ext4_jbd2.c:300 ext4_convert_inline_data_nolock+0x4d6/0xbe0 fs/ext4/inline.c:1237 ext4_convert_inline_data+0x299/0x3c0 fs/ext4/inline.c:2021 ext4_fallocate+0xdd/0x18f0 fs/ext4/extents.c:4929 vfs_fallocate+0x2ba/0x770 fs/open.c:319 ksys_fallocate+0x3c/0x80 fs/open.c:342 __do_sys_fallocate fs/open.c:350 [inline] __se_sys_fallocate fs/open.c:348 [inline] __x64_sys_fallocate+0x92/0xf0 fs/open.c:348 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f4246bec188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000100000001 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002811fdff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffcb74a2b3f R14: 00007f4246bec300 R15: 0000000000022000 INFO: task syz-executor.0:10133 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.0 D26696 10133 8564 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] write_dirty_buffer+0x94/0xa0 fs/buffer.c:3143 fsync_buffers_list fs/buffer.c:703 [inline] sync_mapping_buffers+0x2a9/0x830 fs/buffer.c:521 __generic_file_fsync+0xb4/0x1a0 fs/libfs.c:982 ext4_sync_file+0x412/0xef0 fs/ext4/fsync.c:120 vfs_fsync_range+0xee/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2709 [inline] ext4_file_write_iter+0x7f6/0xfe0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x446/0x880 fs/read_write.c:487 vfs_write+0x150/0x4f0 fs/read_write.c:549 ksys_write+0xcd/0x1b0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:607 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f4246bcb188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000000082 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffcb74a2b3f R14: 00007f4246bcb300 R15: 0000000000022000 INFO: task syz-executor.2:10047 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D26680 10047 8562 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x152/0x1a0 fs/buffer.c:3164 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3181 __ext4_handle_dirty_metadata+0x17a/0x520 fs/ext4/ext4_jbd2.c:300 ext4_convert_inline_data_nolock+0x4d6/0xbe0 fs/ext4/inline.c:1237 ext4_convert_inline_data+0x299/0x3c0 fs/ext4/inline.c:2021 ext4_fallocate+0xdd/0x18f0 fs/ext4/extents.c:4929 vfs_fallocate+0x2ba/0x770 fs/open.c:319 ksys_fallocate+0x3c/0x80 fs/open.c:342 __do_sys_fallocate fs/open.c:350 [inline] __se_sys_fallocate fs/open.c:348 [inline] __x64_sys_fallocate+0x92/0xf0 fs/open.c:348 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f94fbad5188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000100000001 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002811fdff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fffc712103f R14: 00007f94fbad5300 R15: 0000000000022000 INFO: task syz-executor.2:10073 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D26696 10073 8562 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] write_dirty_buffer+0x94/0xa0 fs/buffer.c:3143 fsync_buffers_list fs/buffer.c:703 [inline] sync_mapping_buffers+0x2a9/0x830 fs/buffer.c:521 __generic_file_fsync+0xb4/0x1a0 fs/libfs.c:982 ext4_sync_file+0x412/0xef0 fs/ext4/fsync.c:120 vfs_fsync_range+0xee/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2709 [inline] ext4_file_write_iter+0x7f6/0xfe0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x446/0x880 fs/read_write.c:487 vfs_write+0x150/0x4f0 fs/read_write.c:549 ksys_write+0xcd/0x1b0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:607 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f94fbab4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000000082 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007fffc712103f R14: 00007f94fbab4300 R15: 0000000000022000 INFO: task syz-executor.2:10137 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.2 D28696 10137 8562 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:566 [inline] rwsem_down_write_failed+0x3ab/0x750 kernel/locking/rwsem-xadd.c:595 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:117 __down_write arch/x86/include/asm/rwsem.h:142 [inline] down_write+0x53/0x90 kernel/locking/rwsem.c:72 inode_lock include/linux/fs.h:715 [inline] process_measurement+0x321/0x14b0 security/integrity/ima/ima_main.c:205 ima_file_check+0xcf/0x120 security/integrity/ima/ima_main.c:391 do_last fs/namei.c:3406 [inline] path_openat+0xb23/0x2290 fs/namei.c:3540 do_filp_open+0x177/0x250 fs/namei.c:3574 do_sys_open+0x1dc/0x360 fs/open.c:1101 ksys_open include/linux/syscalls.h:1275 [inline] __do_sys_creat fs/open.c:1159 [inline] __se_sys_creat fs/open.c:1157 [inline] __x64_sys_creat+0x5c/0x80 fs/open.c:1157 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f94fba93188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000240 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0f0 R13: 00007fffc712103f R14: 00007f94fba93300 R15: 0000000000022000 INFO: task syz-executor.1:10097 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D26680 10097 8565 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x152/0x1a0 fs/buffer.c:3164 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3181 __ext4_handle_dirty_metadata+0x17a/0x520 fs/ext4/ext4_jbd2.c:300 ext4_convert_inline_data_nolock+0x4d6/0xbe0 fs/ext4/inline.c:1237 ext4_convert_inline_data+0x299/0x3c0 fs/ext4/inline.c:2021 ext4_fallocate+0xdd/0x18f0 fs/ext4/extents.c:4929 vfs_fallocate+0x2ba/0x770 fs/open.c:319 ksys_fallocate+0x3c/0x80 fs/open.c:342 __do_sys_fallocate fs/open.c:350 [inline] __se_sys_fallocate fs/open.c:348 [inline] __x64_sys_fallocate+0x92/0xf0 fs/open.c:348 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f8f6a1eb188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000100000001 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002811fdff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc5285ea3f R14: 00007f8f6a1eb300 R15: 0000000000022000 INFO: task syz-executor.1:10141 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.1 D26192 10141 8565 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] write_dirty_buffer+0x94/0xa0 fs/buffer.c:3143 fsync_buffers_list fs/buffer.c:703 [inline] sync_mapping_buffers+0x2a9/0x830 fs/buffer.c:521 __generic_file_fsync+0xb4/0x1a0 fs/libfs.c:982 ext4_sync_file+0x412/0xef0 fs/ext4/fsync.c:120 vfs_fsync_range+0xee/0x220 fs/sync.c:197 generic_write_sync include/linux/fs.h:2709 [inline] ext4_file_write_iter+0x7f6/0xfe0 fs/ext4/file.c:270 call_write_iter include/linux/fs.h:1793 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x446/0x880 fs/read_write.c:487 vfs_write+0x150/0x4f0 fs/read_write.c:549 ksys_write+0xcd/0x1b0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:607 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f8f6a1ca188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665f9 RDX: 0000000000000082 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffc5285ea3f R14: 00007f8f6a1ca300 R15: 0000000000022000 INFO: task syz-executor.5:10116 blocked for more than 140 seconds. Not tainted 4.18.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.5 D26680 10116 8559 0x00080004 Call Trace: context_switch kernel/sched/core.c:2853 [inline] __schedule+0x80c/0x1fc0 kernel/sched/core.c:3501 schedule+0x7f/0x1b0 kernel/sched/core.c:3545 io_schedule+0x1c/0x70 kernel/sched/core.c:5168 bit_wait_io+0xf/0x90 kernel/sched/wait_bit.c:207 __wait_on_bit_lock+0xcb/0x1c0 kernel/sched/wait_bit.c:89 out_of_line_wait_on_bit_lock+0xde/0x110 kernel/sched/wait_bit.c:116 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x3c/0x40 fs/buffer.c:65 lock_buffer include/linux/buffer_head.h:366 [inline] __sync_dirty_buffer+0x152/0x1a0 fs/buffer.c:3164 sync_dirty_buffer+0xe/0x10 fs/buffer.c:3181 __ext4_handle_dirty_metadata+0x17a/0x520 fs/ext4/ext4_jbd2.c:300 ext4_convert_inline_data_nolock+0x4d6/0xbe0 fs/ext4/inline.c:1237 ext4_convert_inline_data+0x299/0x3c0 fs/ext4/inline.c:2021 ext4_fallocate+0xdd/0x18f0 fs/ext4/extents.c:4929 vfs_fallocate+0x2ba/0x770 fs/open.c:319 ksys_fallocate+0x3c/0x80 fs/open.c:342 __do_sys_fallocate fs/open.c:350 [inline] __se_sys_fallocate fs/open.c:348 [inline] __x64_sys_fallocate+0x92/0xf0 fs/open.c:348 do_syscall_64+0xda/0x540 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665f9 Code: Bad RIP value. RSP: 002b:00007f49f41de188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9 RDX: 0000000000000000 RSI: 0000000100000001 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002811fdff R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffda2faebbf R14: 00007f49f41de300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/1433: #0: 0000000026a0609c (rcu_read_lock){....}, at: debug_show_all_locks+0x5b/0x27a kernel/locking/lockdep.c:4461 2 locks held by syz-executor.3/10002: #0: 000000003ff44c1d (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 000000003ff44c1d (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 00000000682b47ab (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 00000000682b47ab (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.3/10129: #0: 00000000b2663311 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 000000003ff44c1d (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 000000003ff44c1d (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 00000000d9aaebf4 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 00000000d9aaebf4 (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 2 locks held by syz-executor.0/10035: #0: 00000000b6090126 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 00000000b6090126 (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 00000000bdfafc84 (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 00000000bdfafc84 (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.0/10133: #0: 00000000f71bd637 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 00000000b6090126 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 00000000b6090126 (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 00000000af3840e0 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 00000000af3840e0 (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 2 locks held by syz-executor.2/10047: #0: 00000000483eb7ef (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 00000000483eb7ef (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 00000000626bf840 (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 00000000626bf840 (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.2/10073: #0: 000000002a31cfcb (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 00000000483eb7ef (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 00000000483eb7ef (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 000000004278b506 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 000000004278b506 (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 2 locks held by syz-executor.2/10137: #0: 00000000483eb7ef (sb_writers#3){.+.+}, at: sb_start_write include/linux/fs.h:1554 [inline] #0: 00000000483eb7ef (sb_writers#3){.+.+}, at: mnt_want_write+0x3c/0xa0 fs/namespace.c:386 #1: 000000004278b506 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #1: 000000004278b506 (&sb->s_type->i_mutex_key#11){+.+.}, at: process_measurement+0x321/0x14b0 security/integrity/ima/ima_main.c:205 2 locks held by syz-executor.1/10097: #0: 000000004bdf7ec0 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 000000004bdf7ec0 (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 0000000025f288ac (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 0000000025f288ac (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.1/10141: #0: 00000000f6bce386 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 000000004bdf7ec0 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 000000004bdf7ec0 (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 000000003090a7ca (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 000000003090a7ca (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 2 locks held by syz-executor.5/10116: #0: 00000000c6163a12 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 00000000c6163a12 (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 00000000cd51585b (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 00000000cd51585b (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.5/10145: #0: 000000007615124b (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 00000000c6163a12 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 00000000c6163a12 (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 000000007b49c489 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 000000007b49c489 (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 2 locks held by syz-executor.4/10118: #0: 000000001a2f38e4 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #0: 000000001a2f38e4 (sb_writers#3){.+.+}, at: vfs_fallocate+0x42c/0x770 fs/open.c:318 #1: 00000000f3b857b5 (&ei->xattr_sem){++++}, at: ext4_write_lock_xattr fs/ext4/xattr.h:141 [inline] #1: 00000000f3b857b5 (&ei->xattr_sem){++++}, at: ext4_convert_inline_data+0x1dc/0x3c0 fs/ext4/inline.c:2019 3 locks held by syz-executor.4/10146: #0: 00000000ba301975 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xa7/0xd0 fs/file.c:766 #1: 000000001a2f38e4 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2738 [inline] #1: 000000001a2f38e4 (sb_writers#3){.+.+}, at: vfs_write+0x37c/0x4f0 fs/read_write.c:548 #2: 0000000005b1e4e3 (&sb->s_type->i_mutex_key#11){+.+.}, at: inode_lock include/linux/fs.h:715 [inline] #2: 0000000005b1e4e3 (&sb->s_type->i_mutex_key#11){+.+.}, at: __generic_file_fsync+0x8a/0x1a0 fs/libfs.c:981 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1433 Comm: khungtaskd Not tainted 4.18.0-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+0x15a/0x20d lib/dump_stack.c:113 nmi_cpu_backtrace.cold.0+0x13/0xb6 lib/nmi_backtrace.c:103 nmi_trigger_cpumask_backtrace+0xf6/0x11a 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:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x512/0x940 kernel/hung_task.c:252 kthread+0x316/0x3d0 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:412 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0x6/0x10 arch/x86/include/asm/irqflags.h:54