Extracting prog: 4m53.15307202s Minimizing prog: 52m30.777744757s Simplifying prog options: 4m8.702726664s Extracting C: 2m2.669625936s Simplifying C: 10m19.834154225s 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:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program crashed: general protection fault in set_link_state single: successfully extracted reproducer found reproducer with 8 syscalls minimizing guilty program testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) write(0xffffffffffffffff, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) write(0xffffffffffffffff, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, 0x0, &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400), 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, 0x0, &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', 0x0, 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, 0x0, 0x0) program did not crash testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200), 0x0) program did not crash extracting C reproducer testing compiled C program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in dummy_udc_start a never seen crash title: general protection fault in dummy_udc_start, ignore simplifying guilty program options testing program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program crashed: general protection fault in set_link_state extracting C reproducer testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state simplifying C reproducer testing compiled C program (duration=1m40s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing compiled C program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write program crashed: general protection fault in set_link_state testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program crashed: general protection fault in set_link_state validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program crashed: general protection fault in set_link_state validation run: crashed=true testing program (duration=1m40s, {Threaded:false Repeat:true 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}}): mkdirat-mount-openat-write-mkdirat-mount-openat-write detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./gadget\x00', 0x1ff) mount(0x0, &(0x7f0000000100)='./gadget\x00', &(0x7f0000000200)='gadgetfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./gadget/dummy_udc\x00', 0x2, 0x0) write(r0, &(0x7f0000000400)="0000000009020900010100803212010002000000402505a0a4000100000001", 0x1f) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r1, &(0x7f0000000200)='dummy_hcd.0', 0xb) program crashed: general protection fault in set_link_state validation run: crashed=true reproducing took 1h20m36.112821374s repro crashed as (corrupted=false): dummy_hcd dummy_hcd.0: remove, state 1 usb usb1: USB disconnect, device number 1 dummy_hcd dummy_hcd.0: stopped dummy_hcd dummy_hcd.0: USB bus 1 deregistered Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 5916 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:set_link_state+0x27/0x1000 drivers/usb/gadget/udc/dummy_hcd.c:455 Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 20 b4 99 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 8b 2a 03 fb 49 8b 16 4d 8d a6 a3 00 RSP: 0018:ffffc90003cffb30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888035bb3e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: dffffc0000000000 R13: ffff88802a9ef5e9 R14: 0000000000000000 R15: 0000000000000000 FS: 0000555562068500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc711b0f84 CR3: 000000003cdc2000 CR4: 00000000003526f0 Call Trace: dummy_pullup+0xbf/0x120 drivers/usb/gadget/udc/dummy_hcd.c:933 usb_gadget_disconnect_locked+0x126/0x480 drivers/usb/gadget/udc/core.c:785 gadget_unbind_driver+0xc2/0x410 drivers/usb/gadget/udc/core.c:1718 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 driver_detach+0x1f3/0x2d0 drivers/base/dd.c:1435 bus_remove_driver+0x229/0x320 drivers/base/bus.c:832 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1784 dev_release+0x86/0x210 drivers/usb/gadget/legacy/inode.c:1198 __fput+0x42a/0xa80 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:70 [inline] exit_to_user_mode_loop+0x1fa/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0118e6e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc86b90538 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffc86b90620 RCX: 00007f0118e6e0d9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 000000000001db6a R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2da20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f01190f5fac R14: 00007f01190f5fa8 R15: 00007f01190f5fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:set_link_state+0x27/0x1000 drivers/usb/gadget/udc/dummy_hcd.c:455 Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 20 b4 99 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 8b 2a 03 fb 49 8b 16 4d 8d a6 a3 00 RSP: 0018:ffffc90003cffb30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888035bb3e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: dffffc0000000000 R13: ffff88802a9ef5e9 R14: 0000000000000000 R15: 0000000000000000 FS: 0000555562068500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc711b0f84 CR3: 000000003cdc2000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 55 push %rbp 4: 41 57 push %r15 6: 41 56 push %r14 8: 41 55 push %r13 a: 41 54 push %r12 c: 53 push %rbx d: 48 83 ec 38 sub $0x38,%rsp 11: 49 89 fe mov %rdi,%r14 14: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx 1b: fc ff df 1e: e8 20 b4 99 fa call 0xfa99b443 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 8b 2a 03 fb call 0xfb032ac3 38: 49 8b 16 mov (%r14),%rdx 3b: 4d rex.WRB 3c: 8d .byte 0x8d 3d: a6 cmpsb %es:(%rdi),%ds:(%rsi) 3e: a3 .byte 0xa3 final repro crashed as (corrupted=false): dummy_hcd dummy_hcd.0: remove, state 1 usb usb1: USB disconnect, device number 1 dummy_hcd dummy_hcd.0: stopped dummy_hcd dummy_hcd.0: USB bus 1 deregistered Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 5916 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:set_link_state+0x27/0x1000 drivers/usb/gadget/udc/dummy_hcd.c:455 Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 20 b4 99 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 8b 2a 03 fb 49 8b 16 4d 8d a6 a3 00 RSP: 0018:ffffc90003cffb30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888035bb3e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: dffffc0000000000 R13: ffff88802a9ef5e9 R14: 0000000000000000 R15: 0000000000000000 FS: 0000555562068500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc711b0f84 CR3: 000000003cdc2000 CR4: 00000000003526f0 Call Trace: dummy_pullup+0xbf/0x120 drivers/usb/gadget/udc/dummy_hcd.c:933 usb_gadget_disconnect_locked+0x126/0x480 drivers/usb/gadget/udc/core.c:785 gadget_unbind_driver+0xc2/0x410 drivers/usb/gadget/udc/core.c:1718 device_remove drivers/base/dd.c:616 [inline] __device_release_driver drivers/base/dd.c:1349 [inline] device_release_driver_internal+0x48b/0x880 drivers/base/dd.c:1372 driver_detach+0x1f3/0x2d0 drivers/base/dd.c:1435 bus_remove_driver+0x229/0x320 drivers/base/bus.c:832 usb_gadget_unregister_driver+0x4e/0x70 drivers/usb/gadget/udc/core.c:1784 dev_release+0x86/0x210 drivers/usb/gadget/legacy/inode.c:1198 __fput+0x42a/0xa80 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:70 [inline] exit_to_user_mode_loop+0x1fa/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0118e6e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc86b90538 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007ffc86b90620 RCX: 00007f0118e6e0d9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 000000000001db6a R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b2da20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f01190f5fac R14: 00007f01190f5fa8 R15: 00007f01190f5fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:set_link_state+0x27/0x1000 drivers/usb/gadget/udc/dummy_hcd.c:455 Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 20 b4 99 fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 8b 2a 03 fb 49 8b 16 4d 8d a6 a3 00 RSP: 0018:ffffc90003cffb30 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888035bb3e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8e1c3000 R12: dffffc0000000000 R13: ffff88802a9ef5e9 R14: 0000000000000000 R15: 0000000000000000 FS: 0000555562068500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc711b0f84 CR3: 000000003cdc2000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 55 push %rbp 4: 41 57 push %r15 6: 41 56 push %r14 8: 41 55 push %r13 a: 41 54 push %r12 c: 53 push %rbx d: 48 83 ec 38 sub $0x38,%rsp 11: 49 89 fe mov %rdi,%r14 14: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx 1b: fc ff df 1e: e8 20 b4 99 fa call 0xfa99b443 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 8b 2a 03 fb call 0xfb032ac3 38: 49 8b 16 mov (%r14),%rdx 3b: 4d rex.WRB 3c: 8d .byte 0x8d 3d: a6 cmpsb %es:(%rdi),%ds:(%rsi) 3e: a3 .byte 0xa3