Extracting prog: 1m7.5939296s
Minimizing prog: 9m53.238468062s
Simplifying prog options: 2m18.258299253s
Extracting C: 36.056385474s
Simplifying C: 0s


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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program crashed: general protection fault in set_link_state
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false 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
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
program crashed: general protection fault in dummy_udc_start
a never seen crash title: general protection fault in dummy_udc_start, ignore
simplifying guilty program options
testing program (duration=36.655355733s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {Threaded:true 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {Threaded:true 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program crashed: general protection fault in set_link_state
validation run: crashed=true
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program did not crash
validation run: crashed=false
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program crashed: general protection fault in set_link_state
validation run: crashed=true
testing program (duration=36.655355733s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac1-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac1(0x0, 0x81, &(0x7f0000000000)=ANY=[@ANYBLOB="1201010200000040fd07040040000102030109026f00030103a00209040000003b4f12450a240102000a00020102090401000001020000090401010101020000072401040b020008240201030206040905010910000206000725010c0040000904020000010200000904020101010200000905820900020303100725010c08ffb45db7be5fd88df2692fee64be6600dd"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0)
write(r0, &(0x7f00000001c0)='dummy_hcd.0\x00', 0xc)

program crashed: general protection fault in set_link_state
validation run: crashed=true
reproducing took 16m43.421094064s
repro crashed as (corrupted=false):
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 396 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:set_link_state+0x2a/0x1210 drivers/usb/gadget/udc/dummy_hcd.c:432
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 60 49 89 fd 48 bb 00 00 00 00 00 fc ff df e8 4d fc 57 fe 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c8 71 92 fe 4d 8b 75 00 49 8d 95 8b
RSP: 0018:ffffc90000dd7798 EFLAGS: 00010046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88811220cf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd7820 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001baef0 R12: 0000000000000a02
R13: 0000000000000000 R14: ffff88810b814000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555587e74e8 CR3: 000000000640f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dummy_pullup+0xd9/0x220 drivers/usb/gadget/udc/dummy_hcd.c:909
 usb_gadget_disconnect_locked+0x133/0x3b0 drivers/usb/gadget/udc/core.c:744
 usb_gadget_remove_driver+0x55/0x330 drivers/usb/gadget/udc/core.c:1492
 usb_gadget_unregister_driver+0x181/0x480 drivers/usb/gadget/udc/core.c:1656
 raw_release+0xda/0x260 drivers/usb/gadget/legacy/raw_gadget.c:415
 __fput+0x2dc/0x730 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa7c/0x24e0 kernel/exit.c:879
 do_group_exit+0x149/0x310 kernel/exit.c:993
 get_signal+0xfb1/0x1300 kernel/signal.c:2802
 arch_do_signal_or_restart+0xe7/0x11b0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0xa2/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f99561bc0d9
Code: Unable to access opcode bytes at RIP 0x7f99561bc0af.
RSP: 002b:00007f995601d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 000000000000000c RBX: 00007f9956443fa0 RCX: 00007f99561bc0d9
RDX: 000000000000000c RSI: 00002000000001c0 RDI: 0000000000000004
RBP: 00007f9956253024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9956444038 R14: 00007f9956443fa0 R15: 00007ffee8267218
Modules linked in:
---[ end trace c49f9607d7ef7eed ]---
RIP: 0010:set_link_state+0x2a/0x1210 drivers/usb/gadget/udc/dummy_hcd.c:432
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 60 49 89 fd 48 bb 00 00 00 00 00 fc ff df e8 4d fc 57 fe 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c8 71 92 fe 4d 8b 75 00 49 8d 95 8b
RSP: 0018:ffffc90000dd7798 EFLAGS: 00010046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88811220cf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd7820 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001baef0 R12: 0000000000000a02
R13: 0000000000000000 R14: ffff88810b814000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555587e74e8 CR3: 000000000640f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	48 89 e5             	mov    %rsp,%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 60          	sub    $0x60,%rsp
  11:	49 89 fd             	mov    %rdi,%r13
  14:	48 bb 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbx
  1b:	fc ff df
  1e:	e8 4d fc 57 fe       	call   0xfe57fc70
  23:	4c 89 e8             	mov    %r13,%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 ef             	mov    %r13,%rdi
  33:	e8 c8 71 92 fe       	call   0xfe927200
  38:	4d 8b 75 00          	mov    0x0(%r13),%r14
  3c:	49                   	rex.WB
  3d:	8d                   	.byte 0x8d
  3e:	95                   	xchg   %eax,%ebp
  3f:	8b                   	.byte 0x8b

final repro crashed as (corrupted=false):
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 396 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:set_link_state+0x2a/0x1210 drivers/usb/gadget/udc/dummy_hcd.c:432
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 60 49 89 fd 48 bb 00 00 00 00 00 fc ff df e8 4d fc 57 fe 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c8 71 92 fe 4d 8b 75 00 49 8d 95 8b
RSP: 0018:ffffc90000dd7798 EFLAGS: 00010046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88811220cf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd7820 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001baef0 R12: 0000000000000a02
R13: 0000000000000000 R14: ffff88810b814000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555587e74e8 CR3: 000000000640f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 dummy_pullup+0xd9/0x220 drivers/usb/gadget/udc/dummy_hcd.c:909
 usb_gadget_disconnect_locked+0x133/0x3b0 drivers/usb/gadget/udc/core.c:744
 usb_gadget_remove_driver+0x55/0x330 drivers/usb/gadget/udc/core.c:1492
 usb_gadget_unregister_driver+0x181/0x480 drivers/usb/gadget/udc/core.c:1656
 raw_release+0xda/0x260 drivers/usb/gadget/legacy/raw_gadget.c:415
 __fput+0x2dc/0x730 fs/file_table.c:281
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xa7c/0x24e0 kernel/exit.c:879
 do_group_exit+0x149/0x310 kernel/exit.c:993
 get_signal+0xfb1/0x1300 kernel/signal.c:2802
 arch_do_signal_or_restart+0xe7/0x11b0 arch/x86/kernel/signal.c:805
 handle_signal_work kernel/entry/common.c:145 [inline]
 exit_to_user_mode_loop+0xa2/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f99561bc0d9
Code: Unable to access opcode bytes at RIP 0x7f99561bc0af.
RSP: 002b:00007f995601d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 000000000000000c RBX: 00007f9956443fa0 RCX: 00007f99561bc0d9
RDX: 000000000000000c RSI: 00002000000001c0 RDI: 0000000000000004
RBP: 00007f9956253024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9956444038 R14: 00007f9956443fa0 R15: 00007ffee8267218
Modules linked in:
---[ end trace c49f9607d7ef7eed ]---
RIP: 0010:set_link_state+0x2a/0x1210 drivers/usb/gadget/udc/dummy_hcd.c:432
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 60 49 89 fd 48 bb 00 00 00 00 00 fc ff df e8 4d fc 57 fe 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 ef e8 c8 71 92 fe 4d 8b 75 00 49 8d 95 8b
RSP: 0018:ffffc90000dd7798 EFLAGS: 00010046
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff88811220cf00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd7820 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001baef0 R12: 0000000000000a02
R13: 0000000000000000 R14: ffff88810b814000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555587e74e8 CR3: 000000000640f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	55                   	push   %rbp
   1:	48 89 e5             	mov    %rsp,%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 60          	sub    $0x60,%rsp
  11:	49 89 fd             	mov    %rdi,%r13
  14:	48 bb 00 00 00 00 00 	movabs $0xdffffc0000000000,%rbx
  1b:	fc ff df
  1e:	e8 4d fc 57 fe       	call   0xfe57fc70
  23:	4c 89 e8             	mov    %r13,%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 ef             	mov    %r13,%rdi
  33:	e8 c8 71 92 fe       	call   0xfe927200
  38:	4d 8b 75 00          	mov    0x0(%r13),%r14
  3c:	49                   	rex.WB
  3d:	8d                   	.byte 0x8d
  3e:	95                   	xchg   %eax,%ebp
  3f:	8b                   	.byte 0x8b