Extracting prog: 1m41.351348194s Minimizing prog: 2m25.58661834s Simplifying prog options: 0s Extracting C: 22.608234034s Simplifying C: 4m5.109143591s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[@ANYBLOB="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", @ANYRES8, @ANYRESHEX=0x0], 0x0) program crashed: WARNING in media_create_pad_link program crashed: WARNING in media_create_pad_link single: successfully extracted reproducer found reproducer with 1 syscalls minimizing guilty program testing program (duration=36.777360244s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, 0x0, 0x0) program did not crash testing program (duration=36.777360244s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[], 0x0) program did not crash testing program (duration=36.777360244s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[@ANYBLOB, @ANYRES8, @ANYRESHEX=0x0], 0x0) program did not crash extracting C reproducer testing compiled C program (duration=36.777360244s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link simplifying C reproducer testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing compiled C program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect program crashed: WARNING in media_create_pad_link testing program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[@ANYBLOB="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", @ANYRES8, @ANYRESHEX=0x0], 0x0) program crashed: WARNING in media_create_pad_link validation run: crashed=true testing program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[@ANYBLOB="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", @ANYRES8, @ANYRESHEX=0x0], 0x0) program crashed: WARNING in media_create_pad_link validation run: crashed=true testing program (duration=36.777360244s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x3, 0x34, &(0x7f0000000100)=ANY=[@ANYBLOB="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", @ANYRES8, @ANYRESHEX=0x0], 0x0) program crashed: WARNING in media_create_pad_link validation run: crashed=true reproducing took 10m23.805954351s repro crashed as (corrupted=false): usb 5-1: Found UVC 0.00 device (2833:0201) uvcvideo 5-1:0.0: Entity type for entity Output 1 was not initialized! uvcvideo 5-1:0.0: Entity type for entity Input 1 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 3 PID: 6119 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x5d7/0x760 drivers/media/mc/mc-entity.c:1147 Modules linked in: CPU: 3 UID: 0 PID: 6119 Comm: kworker/3:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: usb_hub_wq hub_event RIP: 0010:media_create_pad_link+0x5d7/0x760 drivers/media/mc/mc-entity.c:1147 Code: 17 e0 f9 90 0f 0b 90 bb ea ff ff ff eb d6 e8 60 17 e0 f9 90 0f 0b 90 eb ee e8 55 17 e0 f9 90 0f 0b 90 eb e3 e8 4a 17 e0 f9 90 <0f> 0b 90 eb d8 e8 3f 17 e0 f9 90 0f 0b 90 eb cd e8 74 72 46 fa e9 RSP: 0018:ffffc900016eef10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802c997080 RCX: ffffffff87db703a RDX: ffff8880220fc880 RSI: ffffffff87db74b6 RDI: 0000000000000007 RBP: ffff88802c997080 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880d69b8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30563fff CR3: 0000000052416000 CR4: 0000000000352ef0 Call Trace: uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x3a9/0xab0 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains drivers/media/usb/uvc/uvc_driver.c:2129 [inline] uvc_probe+0x2d0e/0x48a0 drivers/media/usb/uvc/uvc_driver.c:2268 usb_probe_interface+0x300/0xa40 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_new_device+0xd07/0x1a60 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x2f34/0x4fe0 drivers/usb/core/hub.c:5952 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 final repro crashed as (corrupted=false): usb 5-1: Found UVC 0.00 device (2833:0201) uvcvideo 5-1:0.0: Entity type for entity Output 1 was not initialized! uvcvideo 5-1:0.0: Entity type for entity Input 1 was not initialized! ------------[ cut here ]------------ WARNING: CPU: 3 PID: 6119 at drivers/media/mc/mc-entity.c:1147 media_create_pad_link+0x5d7/0x760 drivers/media/mc/mc-entity.c:1147 Modules linked in: CPU: 3 UID: 0 PID: 6119 Comm: kworker/3:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: usb_hub_wq hub_event RIP: 0010:media_create_pad_link+0x5d7/0x760 drivers/media/mc/mc-entity.c:1147 Code: 17 e0 f9 90 0f 0b 90 bb ea ff ff ff eb d6 e8 60 17 e0 f9 90 0f 0b 90 eb ee e8 55 17 e0 f9 90 0f 0b 90 eb e3 e8 4a 17 e0 f9 90 <0f> 0b 90 eb d8 e8 3f 17 e0 f9 90 0f 0b 90 eb cd e8 74 72 46 fa e9 RSP: 0018:ffffc900016eef10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88802c997080 RCX: ffffffff87db703a RDX: ffff8880220fc880 RSI: ffffffff87db74b6 RDI: 0000000000000007 RBP: ffff88802c997080 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880d69b8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30563fff CR3: 0000000052416000 CR4: 0000000000352ef0 Call Trace: uvc_mc_create_links drivers/media/usb/uvc/uvc_entity.c:50 [inline] uvc_mc_register_entities+0x3a9/0xab0 drivers/media/usb/uvc/uvc_entity.c:151 uvc_register_chains drivers/media/usb/uvc/uvc_driver.c:2129 [inline] uvc_probe+0x2d0e/0x48a0 drivers/media/usb/uvc/uvc_driver.c:2268 usb_probe_interface+0x300/0xa40 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xef/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:581 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:659 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:801 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:831 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:959 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1031 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1aa0 drivers/base/core.c:3689 usb_new_device+0xd07/0x1a60 drivers/usb/core/hub.c:2694 hub_port_connect drivers/usb/core/hub.c:5566 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x2f34/0x4fe0 drivers/usb/core/hub.c:5952 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245