Extracting prog: 1m28.86658519s
Minimizing prog: 10m24.458754255s
Simplifying prog options: 0s
Extracting C: 39.264328399s
Simplifying C: 5m17.585909496s


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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program crashed: general protection fault in bus_remove_device
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
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}}): mkdirat-syz_usb_connect$uac3-mount-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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$uac3-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="1201000200000040820582054000010203010902d9000301008032080b0003010020000904000000010120000a2401003d00000000000c240a030300000000000000142402010102000300000000000000000000000013240302010300010300000000000000000000090401000001022000090401010101023200162401020000000001010000000000000002100000000624020102100905010900020100000a25010000000000000009040200000102200009040201010102200016240101000000000101000000000000000210000000062402010210090582090002010086514df0197e61e9f30c9df9fbd036838d336c7e553d7be2278d1bba153a6aaaff938c87cbdc8bc8eac5a38f52a6575c3787bbdb699dc54d836e7553ea05952ee9eea0e2dd520b37f80b05c9e87506828662138bbd7d05cedb56b2b80ff9e08613dd2619ce34bf"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, 0x0, 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, 0x0, &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500), 0x0)

program did not crash
extracting C reproducer
testing compiled C 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}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing compiled C program (duration=30s, {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: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-syz_usb_connect$uac3-mount-openat-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing compiled C program (duration=30s, {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-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing compiled C program (duration=30s, {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-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-syz_usb_connect$uac3-mount-openat-write
program crashed: general protection fault in bus_remove_device
testing program (duration=30s, {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-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program crashed: general protection fault in bus_remove_device
validation run: crashed=true
testing program (duration=30s, {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-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program crashed: general protection fault in bus_remove_device
validation run: crashed=true
testing program (duration=30s, {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-syz_usb_connect$uac3-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
syz_usb_connect$uac3(0x3, 0xeb, &(0x7f0000000240)=ANY=[@ANYBLOB="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"], 0x0)
mount(0x0, &(0x7f0000000200)='./sys\x00', &(0x7f0000000300)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000400)='./sys/bus/usb/drivers_autoprobe\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0', 0x1)

program crashed: general protection fault in bus_remove_device
validation run: crashed=true
reproducing took 20m20.590673529s
repro crashed as (corrupted=false):
usb 3-1: SerialNumber: syz
usb 3-1: 1:1 : invalid UAC_FORMAT_TYPE desc
usb 3-1: 2:1 : no or invalid class specific endpoint descriptor
usb 3-1: 2:1 : unsupported format bits 0x2020000
usb 3-1: USB disconnect, device number 2
general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x150/0x300 lib/klist.c:249
Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 22 62 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 04 62 45 ff 49 8b 46 20 48 89 44 24 18 4c
RSP: 0000:ffffc900001af6a0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff888110bff848 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8676fdc0 RDI: 0000000000000020
RBP: ffffc900001af798 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000035ec4 R12: dffffc0000000000
R13: 1ffff92000035ed8 R14: 0000000000000000 R15: 1ffff1102217ff09
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dc5c0f1b0 CR3: 000000010fd68000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __device_release_driver drivers/base/dd.c:1203 [inline]
 device_release_driver_internal+0x67e/0x7c0 drivers/base/dd.c:1221
 device_release_driver+0x19/0x20 drivers/base/dd.c:1244
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535
 device_del+0x62e/0xe60 drivers/base/core.c:3453
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1470
 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2315
 hub_port_connect drivers/usb/core/hub.c:5343 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5644 [inline]
 port_event drivers/usb/core/hub.c:5810 [inline]
 hub_event+0x19c2/0x4220 drivers/usb/core/hub.c:5892
 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301
 process_scheduled_works kernel/workqueue.c:2363 [inline]
 worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449
 kthread+0x324/0x3b0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 4a23de4937d78165 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x150/0x300 lib/klist.c:249
Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 22 62 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 04 62 45 ff 49 8b 46 20 48 89 44 24 18 4c
RSP: 0000:ffffc900001af6a0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff888110bff848 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8676fdc0 RDI: 0000000000000020
RBP: ffffc900001af798 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000035ec4 R12: dffffc0000000000
R13: 1ffff92000035ed8 R14: 0000000000000000 R15: 1ffff1102217ff09
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dc5b975c8 CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	28 02                	sub    %al,(%rdx)
   2:	49 89 df             	mov    %rbx,%r15
   5:	49 c1 ef 03          	shr    $0x3,%r15
   9:	43 80 3c 27 00       	cmpb   $0x0,(%r15,%r12,1)
   e:	74 08                	je     0x18
  10:	48 89 df             	mov    %rbx,%rdi
  13:	e8 22 62 45 ff       	call   0xff45623a
  18:	4c 8b 33             	mov    (%rbx),%r14
  1b:	49 83 e6 fe          	and    $0xfffffffffffffffe,%r14
  1f:	49 8d 7e 20          	lea    0x20(%r14),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 04 62 45 ff       	call   0xff45623a
  36:	49 8b 46 20          	mov    0x20(%r14),%rax
  3a:	48 89 44 24 18       	mov    %rax,0x18(%rsp)
  3f:	4c                   	rex.WR

final repro crashed as (corrupted=false):
usb 3-1: SerialNumber: syz
usb 3-1: 1:1 : invalid UAC_FORMAT_TYPE desc
usb 3-1: 2:1 : no or invalid class specific endpoint descriptor
usb 3-1: 2:1 : unsupported format bits 0x2020000
usb 3-1: USB disconnect, device number 2
general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x150/0x300 lib/klist.c:249
Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 22 62 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 04 62 45 ff 49 8b 46 20 48 89 44 24 18 4c
RSP: 0000:ffffc900001af6a0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff888110bff848 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8676fdc0 RDI: 0000000000000020
RBP: ffffc900001af798 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000035ec4 R12: dffffc0000000000
R13: 1ffff92000035ed8 R14: 0000000000000000 R15: 1ffff1102217ff09
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dc5c0f1b0 CR3: 000000010fd68000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __device_release_driver drivers/base/dd.c:1203 [inline]
 device_release_driver_internal+0x67e/0x7c0 drivers/base/dd.c:1221
 device_release_driver+0x19/0x20 drivers/base/dd.c:1244
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535
 device_del+0x62e/0xe60 drivers/base/core.c:3453
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1470
 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2315
 hub_port_connect drivers/usb/core/hub.c:5343 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5644 [inline]
 port_event drivers/usb/core/hub.c:5810 [inline]
 hub_event+0x19c2/0x4220 drivers/usb/core/hub.c:5892
 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301
 process_scheduled_works kernel/workqueue.c:2363 [inline]
 worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449
 kthread+0x324/0x3b0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Modules linked in:
---[ end trace 4a23de4937d78165 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x150/0x300 lib/klist.c:249
Code: 28 02 49 89 df 49 c1 ef 03 43 80 3c 27 00 74 08 48 89 df e8 22 62 45 ff 4c 8b 33 49 83 e6 fe 49 8d 7e 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 05 e8 04 62 45 ff 49 8b 46 20 48 89 44 24 18 4c
RSP: 0000:ffffc900001af6a0 EFLAGS: 00010202
RAX: 0000000000000004 RBX: ffff888110bff848 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8676fdc0 RDI: 0000000000000020
RBP: ffffc900001af798 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000035ec4 R12: dffffc0000000000
R13: 1ffff92000035ed8 R14: 0000000000000000 R15: 1ffff1102217ff09
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9dc5b975c8 CR3: 000000000640f000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	28 02                	sub    %al,(%rdx)
   2:	49 89 df             	mov    %rbx,%r15
   5:	49 c1 ef 03          	shr    $0x3,%r15
   9:	43 80 3c 27 00       	cmpb   $0x0,(%r15,%r12,1)
   e:	74 08                	je     0x18
  10:	48 89 df             	mov    %rbx,%rdi
  13:	e8 22 62 45 ff       	call   0xff45623a
  18:	4c 8b 33             	mov    (%rbx),%r14
  1b:	49 83 e6 fe          	and    $0xfffffffffffffffe,%r14
  1f:	49 8d 7e 20          	lea    0x20(%r14),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 04 62 45 ff       	call   0xff45623a
  36:	49 8b 46 20          	mov    0x20(%r14),%rax
  3a:	48 89 44 24 18       	mov    %rax,0x18(%rsp)
  3f:	4c                   	rex.WR