netlink: 4 bytes leftover after parsing attributes in process `syz-executor3'. INFO: task jbd2/sda1-8:3077 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. jbd2/sda1-8 D18536 3077 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 jbd2_journal_commit_transaction+0xd42/0x89f8 fs/jbd2/commit.c:435 kjournald2+0x26d/0xb30 fs/jbd2/journal.c:229 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 INFO: task rs:main Q:Reg:5687 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. rs:main Q:Reg D21576 5687 1 0x00000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 jbd2_log_wait_commit+0x312/0x490 fs/jbd2/journal.c:726 __jbd2_journal_force_commit+0x108/0x230 fs/jbd2/journal.c:577 jbd2_journal_force_commit_nested+0x15/0x30 fs/jbd2/journal.c:596 ext4_should_retry_alloc+0x1bd/0x220 fs/ext4/balloc.c:627 ext4_da_write_begin+0x4f9/0x12c0 fs/ext4/inode.c:3095 generic_perform_write+0x3aa/0x6a0 mm/filemap.c:3139 __generic_file_write_iter+0x26e/0x630 mm/filemap.c:3264 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 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+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f6e1ff7f19d Code: d1 20 00 00 75 10 b8 01 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be fa ff ff 48 89 04 24 b8 01 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 07 fb ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007f6e1e51feb0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000104 RCX: 00007f6e1ff7f19d RDX: 0000000000000104 RSI: 0000000000be1a90 RDI: 0000000000000005 RBP: 0000000000be1a90 R08: 0000000000be1b84 R09: 00007f6e1f8fc157 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 00007f6e1e520330 R14: 0000000000000002 R15: 0000000000be1890 INFO: task syz-fuzzer:5806 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-fuzzer D19488 5806 5799 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 ksys_getdents64+0x228/0x450 fs/readdir.c:314 __do_sys_getdents64 fs/readdir.c:333 [inline] __se_sys_getdents64 fs/readdir.c:330 [inline] __x64_sys_getdents64+0x73/0xb0 fs/readdir.c:330 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x47fc44 Code: Bad RIP value. RSP: 002b:000000c4272ab6c0 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047fc44 RDX: 0000000000001000 RSI: 000000c423cf0000 RDI: 000000000000000e RBP: 000000c4272ab710 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0055555555555555 R13: 00000000000000f5 R14: 0000000000000075 R15: 0000000000000018 INFO: task syz-executor0:5815 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor0 D18936 5815 1 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_new_inode+0x3898/0x65b0 fs/ext4/ialloc.c:928 ext4_mkdir+0x2e1/0xe60 fs/ext4/namei.c:2625 vfs_mkdir+0x42e/0x6b0 fs/namei.c:3817 do_mkdirat+0x27a/0x310 fs/namei.c:3840 __do_sys_mkdir fs/namei.c:3856 [inline] __se_sys_mkdir fs/namei.c:3854 [inline] __x64_sys_mkdir+0x5c/0x80 fs/namei.c:3854 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4569b7 Code: Bad RIP value. RSP: 002b:00007ffd152e6578 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000040f30 RCX: 00000000004569b7 RDX: 00007ffd152e65c5 RSI: 00000000000001ff RDI: 00007ffd152e65c0 RBP: 0000000000000735 R08: 0000000000000000 R09: 0000000000000005 R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000002 R13: 0000000000040f27 R14: 00000000000001df R15: 0000000000000000 INFO: task syz-executor3:5882 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor3 D18984 5882 5872 0x00000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45597b Code: Bad RIP value. RSP: 002b:00007ffd082535f0 EFLAGS: 00000206 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00000000016d2970 RCX: 000000000045597b RDX: 0000000000008000 RSI: 00000000016d2970 RDI: 0000000000000003 RBP: 00000000016d2970 R08: 0000000000000001 R09: 00000000016d1940 R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: 0000000000000003 INFO: task syz-executor5:5970 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor5 D18984 5970 5957 0x00000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45597b Code: Bad RIP value. RSP: 002b:00007ffd4aebc9a0 EFLAGS: 00000206 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000002923970 RCX: 000000000045597b RDX: 0000000000008000 RSI: 0000000002923970 RDI: 0000000000000003 RBP: 0000000002923970 R08: 0000000000000001 R09: 0000000002922940 R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: 0000000000000005 INFO: task syz-executor2:18212 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor2 D19000 18212 18211 0x00000000 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] touch_atime+0x29c/0x320 fs/inode.c:1738 file_accessed include/linux/fs.h:2105 [inline] iterate_dir+0x370/0x5d0 fs/readdir.c:56 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45597b Code: Bad RIP value. RSP: 002b:00007ffd47fd8700 EFLAGS: 00000206 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 0000000001086970 RCX: 000000000045597b RDX: 0000000000008000 RSI: 0000000001086970 RDI: 0000000000000003 RBP: 0000000001086970 R08: 0000000000000001 R09: 0000000001085940 R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffd4 R13: 0000000000000016 R14: 0000000000000000 R15: 0000000000000002 INFO: task syz-executor4:21677 blocked for more than 140 seconds. Not tainted 4.19.0-rc5+ #122 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor4 D23584 21677 5923 0x00000004 Call Trace: context_switch kernel/sched/core.c:2825 [inline] __schedule+0x86c/0x1ed0 kernel/sched/core.c:3473 schedule+0xfe/0x460 kernel/sched/core.c:3517 wait_transaction_locked+0x24d/0x310 fs/jbd2/transaction.c:159 add_transaction_credits+0x538/0xe50 fs/jbd2/transaction.c:187 start_this_handle+0x41f/0x1250 fs/jbd2/transaction.c:357 jbd2__journal_start+0x3c9/0xa90 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a5/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_dirty_inode+0x62/0xc0 fs/ext4/inode.c:6023 __mark_inode_dirty+0x7c3/0x1510 fs/fs-writeback.c:2129 generic_update_time+0x26a/0x450 fs/inode.c:1651 update_time fs/inode.c:1667 [inline] file_update_time+0x390/0x640 fs/inode.c:1877 ext4_page_mkwrite+0x1fe/0x14a0 fs/ext4/inode.c:6171 do_page_mkwrite+0x14e/0x660 mm/memory.c:2388 do_shared_fault mm/memory.c:3717 [inline] do_fault mm/memory.c:3756 [inline] handle_pte_fault mm/memory.c:3983 [inline] __handle_mm_fault+0x35ca/0x53e0 mm/memory.c:4107 handle_mm_fault+0x54f/0xc70 mm/memory.c:4144 __do_page_fault+0x67d/0xed0 arch/x86/mm/fault.c:1395 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1470 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1161 RIP: 0033:0x4016a7 Code: 20 48 80 98 80 44 00 90 42 58 0a 83 04 01 a5 85 20 01 00 90 81 99 61 00 72 ac a8 55 10 03 02 00 0b 27 10 06 00 00 08 04 2a 00 <02> 00 81 02 82 80 ca 04 24 00 54 00 07 02 24 01 00 10 02 02 42 29 RSP: 002b:00007ffed6d307b0 EFLAGS: 00010287 RAX: 0000001b2d126000 RBX: 00000000e4db6115 RCX: 0000001b2e120000 RDX: 0000001b2d126004 RSI: 000000000000083b RDI: ffffffff0bd0083b RBP: 000000000000009e R08: 000000000bd0083b R09: 000000000bd0083f R10: 00007ffed6d30920 R11: 0000000000000246 R12: 000000000072bfa0 R13: 0000000080000000 R14: 00007f9fd7516008 R15: 00000000000002fe INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 PID: 976 Comm: khungtaskd Not tainted 4.19.0-rc5+ #122 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+0x1c4/0x2b4 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.3+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1b3/0x1ed 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:144 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:204 [inline] watchdog+0xb3e/0x1050 kernel/hung_task.c:265 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Sending NMI from CPU 0 to CPUs 1: INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.073 msecs NMI backtrace for cpu 1 CPU: 1 PID: 21682 Comm: syz-executor4 Not tainted 4.19.0-rc5+ #122 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x1/0x50 kernel/kcov.c:94 Code: dd 28 00 00 00 4d 39 d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 <48> 89 e5 65 48 8b 04 25 40 ee 01 00 65 8b 15 3c 38 83 7e 81 e2 00 RSP: 0018:ffff8801d95d7178 EFLAGS: 00000297 RAX: 0000000000000002 RBX: ffff8801d8bfc688 RCX: ffffffff82110393 RDX: 0000000000000002 RSI: 0000000000000001 RDI: 0000000000000004 RBP: ffff8801d95d71b0 R08: ffff8801c2d7c3c0 R09: ffffed00325743da R10: ffffed00325743da R11: ffff880192ba1ed3 R12: 0000000000000002 R13: ffff880192ba1e70 R14: 0000000000000001 R15: dffffc0000000000 FS: 00007f9fd58f4700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 000000019d72e000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mext_check_coverage.constprop.13+0x27b/0x510 fs/ext4/move_extent.c:105 move_extent_per_page fs/ext4/move_extent.c:323 [inline] ext4_move_extents+0x2784/0x3c20 fs/ext4/move_extent.c:669 ext4_ioctl+0x3154/0x4210 fs/ext4/ioctl.c:799 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9fd58f3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000300 RSI: 00000000c028660f RDI: 0000000000000003 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9fd58f46d4 R13: 00000000004bf5dd R14: 00000000004cf460 R15: 00000000ffffffff