BTRFS warning (device loop0): failed to read root (objectid=4): -5
BTRFS error (device loop0): open_ctree failed
IPVS: ftp: loaded support on port[0] = 21
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
INFO: task syz-executor.5:19296 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.5 D28264 19296 8134 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
schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
do_wait_for_common kernel/sched/completion.c:83 [inline]
__wait_for_common kernel/sched/completion.c:104 [inline]
wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
usb_start_wait_urb+0x14b/0x4c0 drivers/usb/core/message.c:62
usb_bulk_msg+0x226/0x550 drivers/usb/core/message.c:253
proc_bulk+0x3de/0x860 drivers/usb/core/devio.c:1211
usbdev_do_ioctl+0x696/0x3030 drivers/usb/core/devio.c:2435
usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2585
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:501 [inline]
do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
__do_sys_ioctl fs/ioctl.c:712 [inline]
__se_sys_ioctl fs/ioctl.c:710 [inline]
__x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f9a9efdb639
Code: Bad RIP value.
RSP: 002b:00007f9a9d54e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f9a9f0fbf80 RCX: 00007f9a9efdb639
RDX: 0000000020000140 RSI: 00000000c0185502 RDI: 0000000000000003
RBP: 00007f9a9f036ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcaf80289f R14: 00007f9a9d54e300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/1570:
#0: 000000003cc408be (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7807:
#0: 0000000074a22c64 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
4 locks held by kworker/u4:0/23935:
#0: 000000001b1e7eeb ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
#1: 0000000090332d92 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
#2: 000000001339567f (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521
#3: 00000000613cc913 (rcu_preempt_state.barrier_mutex){+.+.}, at: _rcu_barrier+0x59/0x3e0 kernel/rcu/tree.c:3430
5 locks held by syz-executor.2/25470:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 25470 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:native_apic_mem_write+0x8/0x10 arch/x86/include/asm/apic.h:109
Code: 3d cc 17 3d 0b 01 7f 02 5d c3 89 ef 5d e9 f5 fe c9 06 48 c7 c7 00 97 65 8c e8 84 e2 6f 00 eb df 66 90 89 ff 89 b7 00 c0 5f ff <c3> 0f 1f 80 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 89 fb 48
RSP: 0018:ffff8880ba007e98 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffffffff89cfb1a0 RCX: 0000000000000020
RDX: 1ffffffff139f636 RSI: 000000000000003e RDI: 0000000000000380
RBP: ffff8880ba01e2c0 R08: ffffffff8c665018 R09: 0000000000000000
R10: 0000000000000007 R11: ffffffff8c66501b R12: 000000000000003e
R13: 0000000000000000 R14: ffff8880ba024cc0 R15: ffff8880ba024d30
FS: 00007fcc26db4700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fecb3fc5000 CR3: 00000000af554000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
apic_write arch/x86/include/asm/apic.h:389 [inline]
lapic_next_event+0x4d/0x80 arch/x86/kernel/apic/apic.c:460
clockevents_program_event+0x234/0x350 kernel/time/clockevents.c:344
tick_program_event+0xac/0x140 kernel/time/tick-oneshot.c:48
hrtimer_interrupt+0x40a/0x9e0 kernel/time/hrtimer.c:1598
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
</IRQ>
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:97
Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2
RSP: 0018:ffff88809010f4c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: ffff8880aab49b58 RCX: ffffffff818a9f6f
RDX: 0000000000000000 RSI: ffff88809f446300 RDI: 0000000000000007
RBP: 0000000000000020 R08: 000000000000001c R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880aab49ba8
should_force_cow_break mm/gup.c:79 [inline]
__get_user_pages+0x554/0x1710 mm/gup.c:731
get_dump_page+0xb7/0x130 mm/gup.c:1333
elf_core_dump+0x34e0/0x4c10 fs/binfmt_elf.c:2389
do_coredump+0x1d4e/0x2d60 fs/coredump.c:765
get_signal+0xed9/0x1f70 kernel/signal.c:2583
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198
retint_user+0x8/0x18
RIP: 0033: (null)
Code: Bad RIP value.
RSP: 002b:0000000020000388 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fcc28961f80 RCX: 00007fcc28841639
RDX: 00000000200000c0 RSI: 0000000020000380 RDI: 0000000000000400
RBP: 00007fcc2889cae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000140 R11: 0000000000000206 R12: 0000000000000000
R13: 00007ffd1f1a63ef R14: 00007fcc26db4300 R15: 0000000000022000