Warning: Permanently added '10.128.1.166' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 749.936618][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 749.947082][ T1266] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 749.956591][ T25] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 749.976621][ T2951] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 749.984354][ T6583] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 749.993511][ T6579] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 750.186541][ T5] usb 3-1: Using ep0 maxpacket: 8 [ 750.191796][ T1266] usb 2-1: Using ep0 maxpacket: 8 [ 750.236686][ T25] usb 1-1: Using ep0 maxpacket: 8 [ 750.241861][ T6579] usb 5-1: Using ep0 maxpacket: 8 [ 750.247083][ T6583] usb 6-1: Using ep0 maxpacket: 8 [ 750.252178][ T2951] usb 4-1: Using ep0 maxpacket: 8 [ 750.317044][ T5] usb 3-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.326011][ T1266] usb 2-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.334405][ T5] usb 3-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.343262][ T1266] usb 2-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.352067][ T5] usb 3-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.361928][ T1266] usb 2-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.371592][ T5] usb 3-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.380847][ T1266] usb 2-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.387103][ T25] usb 1-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.391462][ T5] usb 3-1: config 29 has no interface number 0 [ 750.397788][ T6583] usb 6-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.405431][ T1266] usb 2-1: config 29 has no interface number 0 [ 750.412506][ T6579] usb 5-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.420070][ T5] usb 3-1: config 29 has no interface number 1 [ 750.427013][ T2951] usb 4-1: config 29 has an invalid interface number: 229 but max is 2 [ 750.434499][ T5] usb 3-1: config 29 has no interface number 2 [ 750.441436][ T25] usb 1-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.449643][ T1266] usb 2-1: config 29 has no interface number 1 [ 750.462291][ T6579] usb 5-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.464609][ T1266] usb 2-1: config 29 has no interface number 2 [ 750.471501][ T6583] usb 6-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.479410][ T5] usb 3-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.485794][ T2951] usb 4-1: config 29 has an invalid interface number: 212 but max is 2 [ 750.498138][ T1266] usb 2-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.514452][ T25] usb 1-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.523411][ T6583] usb 6-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.526127][ T5] usb 3-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.532544][ T6579] usb 5-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.545370][ T5] usb 3-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.552609][ T25] usb 1-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.565462][ T1266] usb 2-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.582982][ T6583] usb 6-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.585793][ T5] usb 3-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.602556][ T2951] usb 4-1: config 29 contains an unexpected descriptor of type 0x2, skipping [ 750.604700][ T1266] usb 2-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.611706][ T6583] usb 6-1: config 29 has no interface number 0 [ 750.624329][ T5] usb 3-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 750.628838][ T2951] usb 4-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.641570][ T1266] usb 2-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.648172][ T6579] usb 5-1: config 29 has an invalid interface number: 255 but max is 2 [ 750.661033][ T5] usb 3-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 750.667634][ T25] usb 1-1: config 29 has no interface number 0 [ 750.679663][ T1266] usb 2-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 750.684009][ T25] usb 1-1: config 29 has no interface number 1 [ 750.696867][ T5] usb 3-1: config 29 interface 229 has no altsetting 0 [ 750.701436][ T6583] usb 6-1: config 29 has no interface number 1 [ 750.710128][ T1266] usb 2-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 750.714422][ T6583] usb 6-1: config 29 has no interface number 2 [ 750.726524][ T5] usb 3-1: config 29 interface 212 has no altsetting 0 [ 750.737724][ T2951] usb 4-1: config 29 has no interface number 0 [ 750.737751][ T2951] usb 4-1: config 29 has no interface number 1 [ 750.746758][ T1266] usb 2-1: config 29 interface 229 has no altsetting 0 [ 750.757078][ T6579] usb 5-1: config 29 has no interface number 0 [ 750.757104][ T6579] usb 5-1: config 29 has no interface number 1 [ 750.757125][ T6579] usb 5-1: config 29 has no interface number 2 [ 750.757174][ T6579] usb 5-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.767442][ T5] usb 3-1: config 29 interface 255 has no altsetting 0 [ 750.786135][ T25] usb 1-1: config 29 has no interface number 2 [ 750.796104][ T1266] usb 2-1: config 29 interface 212 has no altsetting 0 [ 750.799595][ T2951] usb 4-1: config 29 has no interface number 2 [ 750.806910][ T1266] usb 2-1: config 29 interface 255 has no altsetting 0 [ 750.812695][ T6579] usb 5-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.830584][ T6583] usb 6-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.840978][ T25] usb 1-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.851497][ T2951] usb 4-1: config 29 interface 212 altsetting 3 bulk endpoint 0x5 has invalid maxpacket 1024 [ 750.862500][ T6583] usb 6-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.873671][ T6579] usb 5-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.884578][ T25] usb 1-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.895928][ T2951] usb 4-1: config 29 interface 212 altsetting 3 endpoint 0xF has invalid maxpacket 1023, setting to 64 [ 750.907199][ T6583] usb 6-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.918123][ T6579] usb 5-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.929522][ T25] usb 1-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.940528][ T2951] usb 4-1: config 29 interface 212 altsetting 3 has a duplicate endpoint with address 0x5, skipping [ 750.951433][ T6583] usb 6-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.962611][ T6579] usb 5-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 750.973591][ T25] usb 1-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.976764][ T1266] usb 2-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d [ 750.984763][ T2951] usb 4-1: config 29 interface 212 altsetting 3 endpoint 0xE has invalid maxpacket 1023, setting to 64 [ 750.994042][ T5] usb 3-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d [ 751.005162][ T6583] usb 6-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 751.025166][ T6579] usb 5-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 751.035705][ T25] usb 1-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 751.035836][ T1266] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.047051][ T6579] usb 5-1: config 29 interface 229 has no altsetting 0 [ 751.061830][ T5] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.061835][ T25] usb 1-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 751.061869][ T25] usb 1-1: config 29 interface 229 has no altsetting 0 [ 751.073554][ T1266] usb 2-1: Product: syz [ 751.080263][ T2951] usb 4-1: config 29 interface 255 altsetting 63 has a duplicate endpoint with address 0xE, skipping [ 751.089227][ T5] usb 3-1: Product: syz [ 751.091345][ T6583] usb 6-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 751.104483][ T5] usb 3-1: Manufacturer: syz [ 751.106767][ T2951] usb 4-1: config 29 interface 255 altsetting 63 bulk endpoint 0x8 has invalid maxpacket 32 [ 751.119029][ T1266] usb 2-1: Manufacturer: syz [ 751.121564][ T6579] usb 5-1: config 29 interface 212 has no altsetting 0 [ 751.133664][ T5] usb 3-1: SerialNumber: syz [ 751.136433][ T6583] usb 6-1: config 29 interface 229 has no altsetting 0 [ 751.145300][ T1266] usb 2-1: SerialNumber: syz [ 751.148041][ T25] usb 1-1: config 29 interface 212 has no altsetting 0 [ 751.166578][ T2951] usb 4-1: config 29 interface 229 has no altsetting 0 [ 751.177378][ T6579] usb 5-1: config 29 interface 255 has no altsetting 0 [ 751.187814][ T2951] usb 4-1: config 29 interface 212 has no altsetting 0 [ 751.200859][ T6583] usb 6-1: config 29 interface 212 has no altsetting 0 [ 751.212537][ T2951] usb 4-1: config 29 interface 255 has no altsetting 0 [ 751.222129][ T6583] usb 6-1: config 29 interface 255 has no altsetting 0 [ 751.230690][ T25] usb 1-1: config 29 interface 255 has no altsetting 0 [ 751.386792][ T6579] usb 5-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d [ 751.396077][ T6579] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.404234][ T6579] usb 5-1: Product: syz [ 751.409289][ T2951] usb 4-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d [ 751.418641][ T6583] usb 6-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d executing program executing program [ 751.429166][ T25] usb 1-1: New USB device found, idVendor=0711, idProduct=0903, bcdDevice=66.1d [ 751.438594][ T6579] usb 5-1: Manufacturer: syz [ 751.447926][ T2951] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.457679][ T6583] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.459143][ T1266] usb 2-1: USB2VGA dongle found at address 2 [ 751.465872][ T25] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 751.473688][ T5] usb 3-1: USB2VGA dongle found at address 2 [ 751.484665][ T6579] usb 5-1: SerialNumber: syz [ 751.499936][ T2951] usb 4-1: Product: syz [ 751.504285][ T6583] usb 6-1: Product: syz [ 751.518736][ T2951] usb 4-1: Manufacturer: syz [ 751.525779][ T6583] usb 6-1: Manufacturer: syz [ 751.534274][ T25] usb 1-1: Product: syz [ 751.544469][ T2951] usb 4-1: SerialNumber: syz [ 751.551065][ T6583] usb 6-1: SerialNumber: syz [ 751.559854][ T25] usb 1-1: Manufacturer: syz [ 751.570251][ T1266] usb 2-1: Allocated 8 output buffers [ 751.573902][ T25] usb 1-1: SerialNumber: syz [ 751.577573][ T5] usb 3-1: Allocated 8 output buffers executing program executing program executing program [ 751.808258][ T6579] usb 5-1: USB2VGA dongle found at address 2 [ 751.844452][ T6579] usb 5-1: Allocated 8 output buffers [ 751.852583][ T6583] usb 6-1: USB2VGA dongle found at address 2 executing program [ 751.895696][ T2951] usb 4-1: USB2VGA dongle found at address 2 [ 751.917647][ T25] usb 1-1: USB2VGA dongle found at address 2 [ 751.928193][ T6583] usb 6-1: Allocated 8 output buffers [ 751.945101][ T2951] usb 4-1: Allocated 8 output buffers [ 751.951234][ T25] usb 1-1: Allocated 8 output buffers executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 847.370144][ T5] usb 3-1: Failed to early initialize device [ 847.376755][ T1266] usb 2-1: Failed to early initialize device [ 847.425280][ T1266] usb 2-1: USB2VGA dongle found at address 2 [ 847.433448][ T1266] usb 2-1: Allocated 8 output buffers [ 847.449610][ T5] usb 3-1: USB2VGA dongle found at address 2 [ 847.456983][ T5] usb 3-1: Allocated 8 output buffers [ 847.680159][ T6583] usb 6-1: Failed to early initialize device [ 847.681299][ T6579] usb 5-1: Failed to early initialize device [ 847.721190][ T6583] usb 6-1: USB2VGA dongle found at address 2 [ 847.729094][ T6583] usb 6-1: Allocated 8 output buffers [ 847.736120][ T6579] usb 5-1: USB2VGA dongle found at address 2 [ 847.751425][ T6579] usb 5-1: Allocated 8 output buffers [ 847.760176][ T25] usb 1-1: Failed to early initialize device [ 847.766319][ T2951] usb 4-1: Failed to early initialize device [ 847.821825][ T25] usb 1-1: USB2VGA dongle found at address 2 [ 847.830327][ T2951] usb 4-1: USB2VGA dongle found at address 2 [ 847.839797][ T25] usb 1-1: Allocated 8 output buffers [ 847.847410][ T2951] usb 4-1: Allocated 8 output buffers executing program executing program executing program executing program executing program executing program [ 943.194454][ T1266] usb 2-1: Failed to early initialize device [ 943.255472][ T1266] usb 2-1: USB2VGA dongle found at address 2 [ 943.274394][ T5] usb 3-1: Failed to early initialize device [ 943.326158][ T5] usb 3-1: USB2VGA dongle found at address 2 [ 943.524380][ T6579] usb 5-1: Failed to early initialize device [ 943.530571][ T6583] usb 6-1: Failed to early initialize device [ 943.588675][ T6579] usb 5-1: USB2VGA dongle found at address 2 [ 943.594874][ T25] usb 1-1: Failed to early initialize device [ 943.601176][ T2951] usb 4-1: Failed to early initialize device [ 943.610087][ T6583] usb 6-1: USB2VGA dongle found at address 2 [ 943.665822][ T25] usb 1-1: USB2VGA dongle found at address 2 [ 943.673299][ T2951] usb 4-1: USB2VGA dongle found at address 2 executing program [ 952.314307][ T7113] usb 2-1: Failed to initialize device [ 1002.869128][ T27] INFO: task syz-executor620:7119 blocked for more than 143 seconds. [ 1002.877446][ T27] Not tainted 5.15.0-rc6-syzkaller #0 [ 1002.884451][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1002.893325][ T27] task:syz-executor620 state:D stack:28152 pid: 7119 ppid: 6567 flags:0x00000004 [ 1002.902696][ T27] Call Trace: [ 1002.905994][ T27] __schedule+0xb44/0x5960 [ 1002.910990][ T27] ? find_held_lock+0x2d/0x110 [ 1002.915852][ T27] ? __mutex_lock+0x950/0x12f0 [ 1002.921022][ T27] ? io_schedule_timeout+0x140/0x140 [ 1002.926343][ T27] schedule+0xd3/0x270 [ 1002.930889][ T27] schedule_preempt_disabled+0xf/0x20 [ 1002.936285][ T27] __mutex_lock+0xa34/0x12f0 [ 1002.941286][ T27] ? usb_free_coherent+0x80/0x80 [ 1002.946320][ T27] ? sisusb_open+0xb2/0x4d0 [ 1002.951338][ T27] ? mutex_lock_io_nested+0x1150/0x1150 [ 1002.956909][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1002.963644][ T27] ? kobject_put+0xb9/0x540 [ 1002.968221][ T27] ? __usb_get_extra_descriptor+0x1a0/0x1a0 [ 1002.974566][ T27] sisusb_open+0xb2/0x4d0 [ 1002.979004][ T27] ? sisusb_init_gfxdevice+0x4000/0x4000 [ 1002.984655][ T27] usb_open+0x204/0x2e0 [ 1002.988944][ T27] ? usb_devnode+0xa0/0xa0 [ 1002.993373][ T27] chrdev_open+0x266/0x770 [ 1002.997836][ T27] ? cdev_device_add+0x210/0x210 [ 1003.002874][ T27] ? fsnotify_perm.part.0+0x22d/0x620 [ 1003.008367][ T27] do_dentry_open+0x4c8/0x11d0 [ 1003.013288][ T27] ? cdev_device_add+0x210/0x210 [ 1003.018238][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.024581][ T27] ? may_open+0x1f6/0x420 [ 1003.029111][ T27] path_openat+0x1c9a/0x2740 [ 1003.033707][ T27] ? path_lookupat+0x860/0x860 [ 1003.038464][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1003.044526][ T27] do_filp_open+0x1aa/0x400 [ 1003.049104][ T27] ? may_open_dev+0xf0/0xf0 [ 1003.053630][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 1003.058557][ T27] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1003.064912][ T27] ? _find_next_bit+0x1e3/0x260 [ 1003.069949][ T27] ? _raw_spin_unlock+0x24/0x40 [ 1003.074816][ T27] ? alloc_fd+0x2f0/0x670 [ 1003.079282][ T27] do_sys_openat2+0x16d/0x4d0 [ 1003.083969][ T27] ? build_open_flags+0x6f0/0x6f0 [ 1003.089077][ T27] ? __context_tracking_exit+0xb8/0xe0 [ 1003.094590][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.099526][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.104391][ T27] __x64_sys_openat+0x13f/0x1f0 [ 1003.109309][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 1003.114261][ T27] ? syscall_enter_from_user_mode+0x21/0x70 [ 1003.120353][ T27] do_syscall_64+0x35/0xb0 [ 1003.124790][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1003.130756][ T27] RIP: 0033:0x7f6c225333c7 [ 1003.135219][ T27] RSP: 002b:00007fffa0f54860 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 1003.143732][ T27] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6c225333c7 [ 1003.151807][ T27] RDX: 0000000000000002 RSI: 00007fffa0f548e0 RDI: 00000000ffffff9c [ 1003.159863][ T27] RBP: 00007fffa0f548e0 R08: 0000000000000000 R09: 000000000000000f [ 1003.167851][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1003.175899][ T27] R13: 00007fffa0f5497c R14: 00007fffa0f54990 R15: 00007fffa0f54980 [ 1003.184033][ T27] INFO: task syz-executor620:7122 blocked for more than 143 seconds. [ 1003.192182][ T27] Not tainted 5.15.0-rc6-syzkaller #0 [ 1003.198234][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.207002][ T27] task:syz-executor620 state:D stack:28152 pid: 7122 ppid: 6568 flags:0x00000004 [ 1003.216306][ T27] Call Trace: [ 1003.219839][ T27] __schedule+0xb44/0x5960 [ 1003.224300][ T27] ? find_held_lock+0x2d/0x110 [ 1003.229133][ T27] ? __mutex_lock+0x950/0x12f0 [ 1003.233911][ T27] ? io_schedule_timeout+0x140/0x140 [ 1003.239305][ T27] schedule+0xd3/0x270 [ 1003.243389][ T27] schedule_preempt_disabled+0xf/0x20 [ 1003.248778][ T27] __mutex_lock+0xa34/0x12f0 [ 1003.253473][ T27] ? usb_free_coherent+0x80/0x80 [ 1003.258442][ T27] ? sisusb_open+0xb2/0x4d0 [ 1003.263048][ T27] ? mutex_lock_io_nested+0x1150/0x1150 [ 1003.268606][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.274925][ T27] ? kobject_put+0xb9/0x540 [ 1003.279544][ T27] ? __usb_get_extra_descriptor+0x1a0/0x1a0 [ 1003.285472][ T27] sisusb_open+0xb2/0x4d0 [ 1003.289865][ T27] ? sisusb_init_gfxdevice+0x4000/0x4000 [ 1003.295598][ T27] usb_open+0x204/0x2e0 [ 1003.299845][ T27] ? usb_devnode+0xa0/0xa0 [ 1003.304391][ T27] chrdev_open+0x266/0x770 [ 1003.308809][ T27] ? cdev_device_add+0x210/0x210 [ 1003.313846][ T27] ? fsnotify_perm.part.0+0x22d/0x620 [ 1003.319310][ T27] do_dentry_open+0x4c8/0x11d0 [ 1003.324096][ T27] ? cdev_device_add+0x210/0x210 [ 1003.329103][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.335356][ T27] ? may_open+0x1f6/0x420 [ 1003.339771][ T27] path_openat+0x1c9a/0x2740 [ 1003.344386][ T27] ? path_lookupat+0x860/0x860 [ 1003.349220][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1003.355303][ T27] do_filp_open+0x1aa/0x400 [ 1003.359914][ T27] ? may_open_dev+0xf0/0xf0 [ 1003.364451][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 1003.369463][ T27] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1003.375727][ T27] ? _find_next_bit+0x1e3/0x260 [ 1003.380688][ T27] ? _raw_spin_unlock+0x24/0x40 [ 1003.385557][ T27] ? alloc_fd+0x2f0/0x670 [ 1003.389997][ T27] do_sys_openat2+0x16d/0x4d0 [ 1003.394707][ T27] ? build_open_flags+0x6f0/0x6f0 [ 1003.399819][ T27] ? __context_tracking_exit+0xb8/0xe0 [ 1003.405317][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.410241][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.415138][ T27] __x64_sys_openat+0x13f/0x1f0 [ 1003.420815][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 1003.425774][ T27] ? syscall_enter_from_user_mode+0x21/0x70 [ 1003.431856][ T27] do_syscall_64+0x35/0xb0 [ 1003.436301][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1003.442296][ T27] RIP: 0033:0x7f6c225333c7 [ 1003.446743][ T27] RSP: 002b:00007fffa0f54860 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 1003.455244][ T27] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6c225333c7 [ 1003.463324][ T27] RDX: 0000000000000002 RSI: 00007fffa0f548e0 RDI: 00000000ffffff9c [ 1003.471374][ T27] RBP: 00007fffa0f548e0 R08: 0000000000000000 R09: 000000000000000f [ 1003.479453][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1003.487466][ T27] R13: 00007fffa0f5497c R14: 00007fffa0f54990 R15: 00007fffa0f54980 [ 1003.495585][ T27] INFO: task syz-executor620:7125 blocked for more than 143 seconds. [ 1003.503743][ T27] Not tainted 5.15.0-rc6-syzkaller #0 [ 1003.509781][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.518453][ T27] task:syz-executor620 state:D stack:27872 pid: 7125 ppid: 6566 flags:0x00004004 [ 1003.527744][ T27] Call Trace: [ 1003.531096][ T27] __schedule+0xb44/0x5960 [ 1003.535532][ T27] ? find_held_lock+0x2d/0x110 [ 1003.540366][ T27] ? __mutex_lock+0x950/0x12f0 [ 1003.545136][ T27] ? io_schedule_timeout+0x140/0x140 [ 1003.550494][ T27] schedule+0xd3/0x270 [ 1003.554594][ T27] schedule_preempt_disabled+0xf/0x20 [ 1003.560057][ T27] __mutex_lock+0xa34/0x12f0 [ 1003.564655][ T27] ? usb_free_coherent+0x80/0x80 [ 1003.569663][ T27] ? sisusb_open+0xb2/0x4d0 [ 1003.574177][ T27] ? mutex_lock_io_nested+0x1150/0x1150 [ 1003.579802][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.586060][ T27] ? kobject_put+0xb9/0x540 [ 1003.590634][ T27] ? __usb_get_extra_descriptor+0x1a0/0x1a0 [ 1003.596550][ T27] sisusb_open+0xb2/0x4d0 [ 1003.600998][ T27] ? sisusb_init_gfxdevice+0x4000/0x4000 [ 1003.606651][ T27] usb_open+0x204/0x2e0 [ 1003.610877][ T27] ? usb_devnode+0xa0/0xa0 [ 1003.615345][ T27] chrdev_open+0x266/0x770 [ 1003.619883][ T27] ? cdev_device_add+0x210/0x210 [ 1003.624832][ T27] ? fsnotify_perm.part.0+0x22d/0x620 [ 1003.630287][ T27] do_dentry_open+0x4c8/0x11d0 [ 1003.635069][ T27] ? cdev_device_add+0x210/0x210 [ 1003.640097][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.646382][ T27] ? may_open+0x1f6/0x420 [ 1003.650780][ T27] path_openat+0x1c9a/0x2740 [ 1003.655416][ T27] ? path_lookupat+0x860/0x860 [ 1003.660270][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1003.666273][ T27] do_filp_open+0x1aa/0x400 [ 1003.670844][ T27] ? may_open_dev+0xf0/0xf0 [ 1003.675572][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 1003.680599][ T27] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1003.686850][ T27] ? _find_next_bit+0x1e3/0x260 [ 1003.691811][ T27] ? _raw_spin_unlock+0x24/0x40 [ 1003.696674][ T27] ? alloc_fd+0x2f0/0x670 [ 1003.701100][ T27] do_sys_openat2+0x16d/0x4d0 [ 1003.705814][ T27] ? build_open_flags+0x6f0/0x6f0 [ 1003.711074][ T27] ? __context_tracking_exit+0xb8/0xe0 [ 1003.716552][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.721514][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1003.726406][ T27] __x64_sys_openat+0x13f/0x1f0 [ 1003.731330][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 1003.736291][ T27] ? syscall_enter_from_user_mode+0x21/0x70 [ 1003.742295][ T27] do_syscall_64+0x35/0xb0 [ 1003.746738][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1003.752730][ T27] RIP: 0033:0x7f6c225333c7 [ 1003.757152][ T27] RSP: 002b:00007fffa0f54860 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 1003.765645][ T27] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6c225333c7 [ 1003.773684][ T27] RDX: 0000000000000002 RSI: 00007fffa0f548e0 RDI: 00000000ffffff9c [ 1003.781732][ T27] RBP: 00007fffa0f548e0 R08: 0000000000000000 R09: 000000000000000f [ 1003.789769][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1003.797750][ T27] R13: 00007fffa0f5497c R14: 00007fffa0f54990 R15: 00007fffa0f54980 [ 1003.805825][ T27] INFO: task syz-executor620:7128 blocked for more than 144 seconds. [ 1003.813995][ T27] Not tainted 5.15.0-rc6-syzkaller #0 [ 1003.819956][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1003.828625][ T27] task:syz-executor620 state:D stack:28016 pid: 7128 ppid: 6562 flags:0x00000004 [ 1003.837888][ T27] Call Trace: [ 1003.841264][ T27] __schedule+0xb44/0x5960 [ 1003.845749][ T27] ? find_held_lock+0x2d/0x110 [ 1003.850615][ T27] ? __mutex_lock+0x950/0x12f0 [ 1003.855406][ T27] ? io_schedule_timeout+0x140/0x140 [ 1003.860829][ T27] schedule+0xd3/0x270 [ 1003.864912][ T27] schedule_preempt_disabled+0xf/0x20 [ 1003.870367][ T27] __mutex_lock+0xa34/0x12f0 [ 1003.874973][ T27] ? usb_free_coherent+0x80/0x80 [ 1003.880021][ T27] ? sisusb_open+0xb2/0x4d0 [ 1003.884537][ T27] ? mutex_lock_io_nested+0x1150/0x1150 [ 1003.890172][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.896448][ T27] ? kobject_put+0xb9/0x540 [ 1003.901049][ T27] ? __usb_get_extra_descriptor+0x1a0/0x1a0 [ 1003.907060][ T27] sisusb_open+0xb2/0x4d0 [ 1003.911726][ T27] ? sisusb_init_gfxdevice+0x4000/0x4000 [ 1003.917385][ T27] usb_open+0x204/0x2e0 [ 1003.921631][ T27] ? usb_devnode+0xa0/0xa0 [ 1003.926063][ T27] chrdev_open+0x266/0x770 [ 1003.930612][ T27] ? cdev_device_add+0x210/0x210 [ 1003.935599][ T27] ? fsnotify_perm.part.0+0x22d/0x620 [ 1003.941067][ T27] do_dentry_open+0x4c8/0x11d0 [ 1003.945852][ T27] ? cdev_device_add+0x210/0x210 [ 1003.950857][ T27] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1003.957114][ T27] ? may_open+0x1f6/0x420 [ 1003.961596][ T27] path_openat+0x1c9a/0x2740 [ 1003.966216][ T27] ? path_lookupat+0x860/0x860 [ 1003.971079][ T27] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1003.977210][ T27] do_filp_open+0x1aa/0x400 [ 1003.981818][ T27] ? may_open_dev+0xf0/0xf0 [ 1003.986344][ T27] ? rwlock_bug.part.0+0x90/0x90 [ 1003.991359][ T27] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1003.997614][ T27] ? _find_next_bit+0x1e3/0x260 [ 1004.002578][ T27] ? _raw_spin_unlock+0x24/0x40 [ 1004.007466][ T27] ? alloc_fd+0x2f0/0x670 [ 1004.011905][ T27] do_sys_openat2+0x16d/0x4d0 [ 1004.016623][ T27] ? build_open_flags+0x6f0/0x6f0 [ 1004.021759][ T27] ? __context_tracking_exit+0xb8/0xe0 [ 1004.027239][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1004.032154][ T27] ? lock_downgrade+0x6e0/0x6e0 [ 1004.038147][ T27] __x64_sys_openat+0x13f/0x1f0 [ 1004.043082][ T27] ? __ia32_sys_open+0x1c0/0x1c0 [ 1004.048044][ T27] ? syscall_enter_from_user_mode+0x21/0x70 [ 1004.054029][ T27] do_syscall_64+0x35/0xb0 [ 1004.058481][ T27] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1004.064460][ T27] RIP: 0033:0x7f6c225333c7 [ 1004.069052][ T27] RSP: 002b:00007fffa0f54860 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 1004.077455][ T27] RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6c225333c7 [ 1004.085517][ T27] RDX: 0000000000000002 RSI: 00007fffa0f548e0 RDI: 00000000ffffff9c [ 1004.093595][ T27] RBP: 00007fffa0f548e0 R08: 0000000000000000 R09: 000000000000000f [ 1004.101764][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 1004.109830][ T27] R13: 00007fffa0f5497c R14: 00007fffa0f54990 R15: 00007fffa0f54980 [ 1004.117853][ T27] [ 1004.117853][ T27] Showing all locks held in the system: [ 1004.125736][ T27] 6 locks held by kworker/0:0/5: [ 1004.130736][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.141619][ T27] #1: ffffc90000ca7db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.152976][ T27] #2: ffff8881462ac220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.161947][ T27] #3: ffff88801213b220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.171395][ T27] #4: ffff88801cec41a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.180748][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.190389][ T27] 6 locks held by kworker/1:1/25: [ 1004.195461][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.206260][ T27] #1: ffffc90000dffdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.217657][ T27] #2: ffff88814663e220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.226652][ T27] #3: ffff888019b39220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.235995][ T27] #4: ffff8881477ae1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.245368][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.255246][ T27] 1 lock held by khungtaskd/27: [ 1004.260389][ T27] #0: ffffffff8b981b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 1004.270763][ T27] 6 locks held by kworker/0:2/1266: [ 1004.275978][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.287265][ T27] #1: ffffc900051efdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.299022][ T27] #2: ffff8881462a4220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.307953][ T27] #3: ffff88801213a220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.317645][ T27] #4: ffff88801bc171a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.327051][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.336841][ T27] 6 locks held by kworker/1:3/2951: [ 1004.342168][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.352994][ T27] #1: ffffc9000c74fdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.364412][ T27] #2: ffff888146672220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.374149][ T27] #3: ffff88801258d220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.383957][ T27] #4: ffff8880121921a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.393683][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.403461][ T27] 6 locks held by kworker/1:0/6579: [ 1004.408898][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.419707][ T27] #1: ffffc90002cefdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.431064][ T27] #2: ffff888146675220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.440103][ T27] #3: ffff88801258e220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.449465][ T27] #4: ffff8880121911a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.458822][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.468424][ T27] 6 locks held by kworker/1:2/6583: [ 1004.473680][ T27] #0: ffff8880143e4138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x8a3/0x16b0 [ 1004.484505][ T27] #1: ffffc90002c97db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8d7/0x16b0 [ 1004.495863][ T27] #2: ffff88801eb01220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 [ 1004.504854][ T27] #3: ffff88801258f220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.514214][ T27] #4: ffff888025ad01a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 1004.523550][ T27] #5: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_register_dev+0x19d/0x7e0 [ 1004.533227][ T27] 2 locks held by syz-executor620/7116: [ 1004.538844][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.547651][ T27] #1: ffff88801be198d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 [ 1004.556990][ T27] 2 locks held by syz-executor620/7119: [ 1004.562605][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.571501][ T27] #1: ffff88801be198d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 [ 1004.580816][ T27] 2 locks held by syz-executor620/7122: [ 1004.586451][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.595343][ T27] #1: ffff88801be198d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 [ 1004.604682][ T27] 2 locks held by syz-executor620/7125: [ 1004.610335][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.619251][ T27] #1: ffff88801be198d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 [ 1004.628520][ T27] 2 locks held by syz-executor620/7128: [ 1004.634154][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.643077][ T27] #1: ffff88801be198d0 (&(sisusb->lock)){+.+.}-{3:3}, at: sisusb_open+0xb2/0x4d0 [ 1004.652415][ T27] 1 lock held by syz-executor620/7150: [ 1004.657878][ T27] #0: ffffffff8c81f970 (minor_rwsem#2){++++}-{3:3}, at: usb_open+0x24/0x2e0 [ 1004.666771][ T27] [ 1004.669193][ T27] ============================================= [ 1004.669193][ T27] [ 1004.677639][ T27] NMI backtrace for cpu 1 [ 1004.681967][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc6-syzkaller #0 [ 1004.690104][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1004.700315][ T27] Call Trace: [ 1004.703599][ T27] dump_stack_lvl+0xcd/0x134 [ 1004.708247][ T27] nmi_cpu_backtrace.cold+0x47/0x144 [ 1004.713538][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 1004.718881][ T27] nmi_trigger_cpumask_backtrace+0x1ae/0x220 [ 1004.724873][ T27] watchdog+0xc1d/0xf50 [ 1004.729032][ T27] ? reset_hung_task_detector+0x30/0x30 [ 1004.734569][ T27] kthread+0x3e5/0x4d0 [ 1004.738670][ T27] ? set_kthread_struct+0x130/0x130 [ 1004.743885][ T27] ret_from_fork+0x1f/0x30 [ 1004.748435][ T27] Sending NMI from CPU 1 to CPUs 0: [ 1004.753709][ C0] NMI backtrace for cpu 0 [ 1004.753720][ C0] CPU: 0 PID: 2960 Comm: systemd-journal Not tainted 5.15.0-rc6-syzkaller #0 [ 1004.753744][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1004.753756][ C0] RIP: 0010:kasan_check_range+0xc8/0x180 [ 1004.753864][ C0] Code: 38 00 74 ed 48 8d 50 08 eb 09 48 83 c0 01 48 39 d0 74 7a 80 38 00 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 75 56 5b 5d 41 5c c3 <48> 85 d2 74 5e 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 50 80 38 00 [ 1004.753889][ C0] RSP: 0018:ffffc90002b9faa0 EFLAGS: 00000083 [ 1004.753907][ C0] RAX: fffffbfff1f9ff42 RBX: fffffbfff1f9ff43 RCX: ffffffff815bcd56 [ 1004.753922][ C0] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff8fcffa10 [ 1004.753936][ C0] RBP: fffffbfff1f9ff42 R08: 0000000000000000 R09: ffffffff8fcffa17 [ 1004.753950][ C0] R10: fffffbfff1f9ff42 R11: 0000000000000000 R12: ffff88807b585fa0 [ 1004.753965][ C0] R13: ffff88807b585580 R14: 0000000000050000 R15: 00000000000501a1 [ 1004.753980][ C0] FS: 00007f57954e18c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 1004.754001][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1004.754016][ C0] CR2: 00007f57928e0000 CR3: 000000002507b000 CR4: 00000000003506f0 [ 1004.754030][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1004.754043][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1004.754056][ C0] Call Trace: [ 1004.754063][ C0] __lock_acquire+0x3e6/0x54a0 [ 1004.754090][ C0] ? do_syscall_64+0x35/0xb0 [ 1004.754110][ C0] ? entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1004.754138][ C0] ? __kasan_slab_free+0xff/0x130 [ 1004.754158][ C0] ? slab_free_freelist_hook+0x8b/0x1c0 [ 1004.754204][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1004.754228][ C0] ? mark_lock+0xef/0x17b0 [ 1004.754252][ C0] lock_acquire+0x1ab/0x510 [ 1004.754274][ C0] ? __might_fault+0xa3/0x180 [ 1004.754338][ C0] ? lock_release+0x720/0x720 [ 1004.754366][ C0] __might_fault+0x106/0x180 [ 1004.754390][ C0] ? __might_fault+0xa3/0x180 [ 1004.754414][ C0] strncpy_from_user+0x2f/0x3e0 [ 1004.754467][ C0] getname_flags.part.0+0x95/0x4f0 [ 1004.754494][ C0] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1004.754520][ C0] getname+0x8e/0xd0 [ 1004.754543][ C0] do_sys_openat2+0xf5/0x4d0 [ 1004.754564][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 1004.754591][ C0] ? build_open_flags+0x6f0/0x6f0 [ 1004.754614][ C0] ? seccomp_notify_ioctl+0xdc0/0xdc0 [ 1004.754642][ C0] __x64_sys_open+0x119/0x1c0 [ 1004.754663][ C0] ? do_sys_open+0x140/0x140 [ 1004.754684][ C0] ? __secure_computing+0x104/0x360 [ 1004.754712][ C0] do_syscall_64+0x35/0xb0 [ 1004.754731][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1004.754757][ C0] RIP: 0033:0x7f5794a70840 [ 1004.754773][ C0] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 1004.754793][ C0] RSP: 002b:00007ffd068716a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 1004.754813][ C0] RAX: ffffffffffffffda RBX: 00007ffd068719b0 RCX: 00007f5794a70840 [ 1004.754828][ C0] RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055871d1a48d0 [ 1004.754842][ C0] RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff [ 1004.754855][ C0] R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff [ 1004.754868][ C0] R13: 000055871d197040 R14: 00007ffd06871970 R15: 000055871d1a46f0 [ 1004.754896][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.187 msecs [ 1004.755703][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 1005.106325][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc6-syzkaller #0 [ 1005.114567][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1005.124628][ T27] Call Trace: [ 1005.127904][ T27] dump_stack_lvl+0xcd/0x134 [ 1005.132505][ T27] panic+0x2b0/0x6dd [ 1005.136397][ T27] ? __warn_printk+0xf3/0xf3 [ 1005.140987][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 1005.146186][ T27] ? _flat_send_IPI_mask+0x53/0x60 [ 1005.151350][ T27] ? watchdog.cold+0x130/0x158 [ 1005.156155][ T27] watchdog.cold+0x141/0x158 [ 1005.160751][ T27] ? reset_hung_task_detector+0x30/0x30 [ 1005.166342][ T27] kthread+0x3e5/0x4d0 [ 1005.170424][ T27] ? set_kthread_struct+0x130/0x130 [ 1005.175649][ T27] ret_from_fork+0x1f/0x30 [ 1005.180467][ T27] Kernel Offset: disabled [ 1005.184786][ T27] Rebooting in 86400 seconds..