================================================================================ UBSAN: Undefined behaviour in drivers/vhost/vhost.c:116:62 load of value 198 is not a valid value for type '_Bool' CPU: 1 PID: 22648 Comm: syz-executor.0 Not tainted 4.19.152-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_load_invalid_value.cold+0x63/0x6f lib/ubsan.c:454 vhost_init_is_le drivers/vhost/vhost.c:116 [inline] vhost_reset_is_le drivers/vhost/vhost.c:143 [inline] vhost_vq_reset.constprop.0.cold+0x15/0x1a drivers/vhost/vhost.c:325 vhost_dev_init+0x442/0x780 drivers/vhost/vhost.c:463 vhost_vsock_dev_open+0x1c9/0x310 drivers/vhost/vsock.c:629 misc_open+0x372/0x4a0 drivers/char/misc.c:141 chrdev_open+0x266/0x770 fs/char_dev.c:423 do_dentry_open+0x4aa/0x1160 fs/open.c:796 do_last fs/namei.c:3421 [inline] path_openat+0x7d5/0x2e90 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+0xf9/0x670 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45de59 Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd13832ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000024840 RCX: 000000000045de59 RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 000000000118bf68 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff878d4d7f R14: 00007fd13832b9c0 R15: 000000000118bf2c ================================================================================ device ip6_vti0 entered promiscuous mode (syz-executor.2,22644,0):ocfs2_parse_options:1499 ERROR: Unrecognized mount option "!" or missing value (syz-executor.2,22644,1):ocfs2_fill_super:1225 ERROR: status = -22 (syz-executor.2,22687,1):ocfs2_parse_options:1499 ERROR: Unrecognized mount option "!" or missing value (syz-executor.2,22687,0):ocfs2_fill_super:1225 ERROR: status = -22 net_ratelimit: 1 callbacks suppressed do_dccp_getsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. IPVS: set_ctl: invalid protocol: 43 224.0.0.1:20000 do_dccp_getsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app do_dccp_getsockopt: sockopt(PACKET_SIZE) is deprecated: fix your app INFO: task kworker/0:1:14 blocked for more than 140 seconds. Not tainted 4.19.152-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/0:1 D25992 14 2 0x80000000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x8e5/0x22e0 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 usb_kill_urb.part.0+0x197/0x220 drivers/usb/core/urb.c:697 usb_kill_urb+0x7c/0x90 drivers/usb/core/urb.c:692 usb_start_wait_urb+0x24f/0x2b0 drivers/usb/core/message.c:63 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:152 hub_port_init+0x8b3/0x2ea0 drivers/usb/core/hub.c:4654 hub_port_connect drivers/usb/core/hub.c:5020 [inline] hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] port_event drivers/usb/core/hub.c:5311 [inline] hub_event+0x1981/0x3fc0 drivers/usb/core/hub.c:5391 process_one_work+0x796/0x14e0 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 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: 5 locks held by kworker/0:1/14: #0: 00000000f2f4a086 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x692/0x14e0 kernel/workqueue.c:2126 #1: 00000000a64ed4f5 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x6c8/0x14e0 kernel/workqueue.c:2130 #2: 00000000daada994 (&dev->mutex){....}, at: device_lock include/linux/device.h:1173 [inline] #2: 00000000daada994 (&dev->mutex){....}, at: hub_event+0x10f/0x3fc0 drivers/usb/core/hub.c:5337 #3: 00000000c21a2fda (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2977 [inline] #3: 00000000c21a2fda (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5019 [inline] #3: 00000000c21a2fda (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5203 [inline] #3: 00000000c21a2fda (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5311 [inline] #3: 00000000c21a2fda (&port_dev->status_lock){+.+.}, at: hub_event+0x196c/0x3fc0 drivers/usb/core/hub.c:5391 #4: 0000000000eecdb9 (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b5/0x2ea0 drivers/usb/core/hub.c:4528 1 lock held by khungtaskd/1096: #0: 00000000a4f71752 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x291 kernel/locking/lockdep.c:4440 1 lock held by in:imklog/6188: #0: 00000000ff97729a (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xe3/0x100 fs/file.c:767 2 locks held by syz-executor.5/22844: 3 locks held by syz-executor.5/22880: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1096 Comm: khungtaskd Not tainted 4.19.152-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+0x22c/0x33e lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x18/0x3d lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb 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+0xa62/0x1020 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: 3715 Comm: systemd-journal Not tainted 4.19.152-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x50 kernel/kcov.c:101 Code: f6 ea bc 0b 00 00 00 00 e9 39 ec ff ff 90 48 8b 34 24 65 48 8b 04 25 40 ee 01 00 65 8b 15 ec 1a 90 7e 81 e2 00 01 1f 00 75 2b <8b> 90 e0 12 00 00 83 fa 02 75 20 48 8b 88 e8 12 00 00 8b 80 e4 12 RSP: 0018:ffff8880943efbb8 EFLAGS: 00000246 RAX: ffff8880943e0100 RBX: ffff8880941df3c0 RCX: ffffffff81720edc RDX: 0000000000000000 RSI: ffffffff81720e86 RDI: ffff8880941df308 RBP: 000000007fff0000 R08: 0000000000000000 R09: 000000007fff0000 R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 R13: 000000007fff0000 R14: 000000007fff0000 R15: 000000007fff0000 FS: 00007f22a722f8c0(0000) GS:ffff8880ae200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0182e7c02 CR3: 00000000941f3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: seccomp_run_filters+0xe6/0x590 kernel/seccomp.c:211 __seccomp_filter+0x92/0xbf0 kernel/seccomp.c:668 __secure_computing+0xfc/0x370 kernel/seccomp.c:795 syscall_trace_enter+0x563/0xd80 arch/x86/entry/common.c:121 do_syscall_64+0x4a6/0x670 arch/x86/entry/common.c:283 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f22a64eb9c7 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:00007ffe2a3ccd18 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffe2a3cfd40 RCX: 00007f22a64eb9c7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000561bd3d609a3 RBP: 00007ffe2a3cce60 R08: 0000561bd3d563e5 R09: 0000000000000018 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000561bd4fc88c0 R15: 00007ffe2a3cd350