Extracting prog: 7m18.538429184s
Minimizing prog: 34m25.971981519s
Simplifying prog options: 0s
Extracting C: 2m13.343030403s
Simplifying C: 13m10.489338848s


extracting reproducer from 15 programs
testing a last program of every proc
single: executing 5 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}}): mkdir-mount-open-write-close
detailed listing:
executing program 0:
mkdir(&(0x7f0000000040)='./mount_sys\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = open(&(0x7f0000000140)='./mount_sys/fs/ocfs2/cluster_stack\x00', 0x1, 0x0)
write(r0, &(0x7f0000000180)='o2cb', 0x4)
close(r0)

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: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
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000180)='./debug\x00', &(0x7f00000001c0)='debugfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, 0x0, 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: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}}): openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_SET_USER_MEMORY_REGION2-ioctl$KVM_SET_USER_MEMORY_REGION2-ioctl$KVM_SET_MEMORY_ATTRIBUTES
detailed listing:
executing program 0:
r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x1)
ioctl$KVM_SET_USER_MEMORY_REGION2(r1, 0x40a0ae49, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x1000})
ioctl$KVM_SET_USER_MEMORY_REGION2(r1, 0x40a0ae49, &(0x7f0000000080)={0x1, 0x0, 0x1000, 0x1000})
ioctl$KVM_SET_MEMORY_ATTRIBUTES(r1, 0x4020aed2, &(0x7f00000000c0)={0x0, 0x2000, 0x8})

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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-nanosleep-mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/class/firmware/emi26!loader.fw/data\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mkdirat-mount-openat-write-openat
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
openat(0xffffffffffffff9c, &(0x7f0000000180)='./sys/class/firmware/emi26!loader.fw/data\x00', 0x1, 0x0)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mkdirat-mount-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000140)='1\x00', 0x2)
write(0xffffffffffffffff, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mkdirat-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-nanosleep-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
nanosleep(&(0x7f0000000300)={0x0, 0x989680}, 0x0)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
testing program (duration=45.201742158s, {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-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, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 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, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140), 0x0)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
simplifying C reproducer
testing compiled C program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program did not crash
testing compiled C program (duration=45.201742158s, {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}}): syz_usb_connect-mkdirat-mount-openat-write-write
program did not crash
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing compiled C program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
program crashed: general protection fault in emi26_probe
testing program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
validation run: crashed=true
testing program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
validation run: crashed=true
testing program (duration=45.201742158s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2b, &(0x7f0000000000)=ANY=[@ANYBLOB="12010002000000406a0800010000010203010902190001010080fa0904000001ffffff0007058102400000"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./sys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./sys/class/firmware/emi26!loader.fw/loading\x00', 0x1, 0x0)
write(r0, &(0x7f0000000140)='1\x00', 0x2)
write(r0, &(0x7f0000000200)='0\x00', 0x2)

program crashed: general protection fault in emi26_probe
validation run: crashed=true
reproducing took 1h2m45.123770825s
repro crashed as (corrupted=false):
emi26 - firmware loader 3-1:1.0: emi26_probe start
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: 4382 Comm: kworker/0:9 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:ihex_binrec_size include/linux/ihex.h:26 [inline]
RIP: 0010:__ihex_next_binrec include/linux/ihex.h:35 [inline]
RIP: 0010:ihex_validate_fw include/linux/ihex.h:54 [inline]
RIP: 0010:request_ihex_firmware include/linux/ihex.h:74 [inline]
RIP: 0010:emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline]
RIP: 0010:emi26_probe+0x282/0x1610 drivers/usb/misc/emi26.c:232
Code: ff 89 de e8 60 f7 56 f7 85 db 0f 84 cc 01 00 00 e8 73 f4 56 f7 48 bb 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 75 47 49 8d 7d 05 48 89 f8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc90003386ee0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888077740000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90003387020 R08: ffffffff90b102af R09: 1ffffffff2162055
R10: dffffc0000000000 R11: fffffbfff2162056 R12: fffffffffffffffa
R13: 0000000000000000 R14: 1fffffffffffffff R15: 1fffffffffffffff
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f07feb700 CR3: 0000000026872000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 usb_new_device+0xa01/0x15e0 drivers/usb/core/hub.c:2659
 hub_port_connect drivers/usb/core/hub.c:5517 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x2b2f/0x5200 drivers/usb/core/hub.c:5899
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ihex_binrec_size include/linux/ihex.h:26 [inline]
RIP: 0010:__ihex_next_binrec include/linux/ihex.h:35 [inline]
RIP: 0010:ihex_validate_fw include/linux/ihex.h:54 [inline]
RIP: 0010:request_ihex_firmware include/linux/ihex.h:74 [inline]
RIP: 0010:emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline]
RIP: 0010:emi26_probe+0x282/0x1610 drivers/usb/misc/emi26.c:232
Code: ff 89 de e8 60 f7 56 f7 85 db 0f 84 cc 01 00 00 e8 73 f4 56 f7 48 bb 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 75 47 49 8d 7d 05 48 89 f8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc90003386ee0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888077740000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90003387020 R08: ffffffff90b102af R09: 1ffffffff2162055
R10: dffffc0000000000 R11: fffffbfff2162056 R12: fffffffffffffffa
R13: 0000000000000000 R14: 1fffffffffffffff R15: 1fffffffffffffff
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91b9d5da08 CR3: 000000002e7a9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	ff 89 de e8 60 f7    	decl   -0x89f1722(%rcx)
   6:	56                   	push   %rsi
   7:	f7 85 db 0f 84 cc 01 	testl  $0xe8000001,-0x337bf025(%rbp)
   e:	00 00 e8
  11:	73 f4                	jae    0x7
  13:	56                   	push   %rsi
  14:	f7 48 bb 00 00 00 00 	testl  $0x0,-0x45(%rax)
  1b:	00 fc                	add    %bh,%ah
  1d:	ff                   	lcall  (bad)
  1e:	df 49 8d             	fisttps -0x73(%rcx)
  21:	7d 04                	jge    0x27
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	75 47                	jne    0x79
  32:	49 8d 7d 05          	lea    0x5(%r13),%rdi
  36:	48 89 f8             	mov    %rdi,%rax
  39:	48 c1 e8 03          	shr    $0x3,%rax
  3d:	0f                   	.byte 0xf
  3e:	b6 04                	mov    $0x4,%dh

final repro crashed as (corrupted=false):
emi26 - firmware loader 3-1:1.0: emi26_probe start
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: 4382 Comm: kworker/0:9 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:ihex_binrec_size include/linux/ihex.h:26 [inline]
RIP: 0010:__ihex_next_binrec include/linux/ihex.h:35 [inline]
RIP: 0010:ihex_validate_fw include/linux/ihex.h:54 [inline]
RIP: 0010:request_ihex_firmware include/linux/ihex.h:74 [inline]
RIP: 0010:emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline]
RIP: 0010:emi26_probe+0x282/0x1610 drivers/usb/misc/emi26.c:232
Code: ff 89 de e8 60 f7 56 f7 85 db 0f 84 cc 01 00 00 e8 73 f4 56 f7 48 bb 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 75 47 49 8d 7d 05 48 89 f8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc90003386ee0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888077740000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90003387020 R08: ffffffff90b102af R09: 1ffffffff2162055
R10: dffffc0000000000 R11: fffffbfff2162056 R12: fffffffffffffffa
R13: 0000000000000000 R14: 1fffffffffffffff R15: 1fffffffffffffff
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f07feb700 CR3: 0000000026872000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 usb_new_device+0xa01/0x15e0 drivers/usb/core/hub.c:2659
 hub_port_connect drivers/usb/core/hub.c:5517 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x2b2f/0x5200 drivers/usb/core/hub.c:5899
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ihex_binrec_size include/linux/ihex.h:26 [inline]
RIP: 0010:__ihex_next_binrec include/linux/ihex.h:35 [inline]
RIP: 0010:ihex_validate_fw include/linux/ihex.h:54 [inline]
RIP: 0010:request_ihex_firmware include/linux/ihex.h:74 [inline]
RIP: 0010:emi26_load_firmware drivers/usb/misc/emi26.c:86 [inline]
RIP: 0010:emi26_probe+0x282/0x1610 drivers/usb/misc/emi26.c:232
Code: ff 89 de e8 60 f7 56 f7 85 db 0f 84 cc 01 00 00 e8 73 f4 56 f7 48 bb 00 00 00 00 00 fc ff df 49 8d 7d 04 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 75 47 49 8d 7d 05 48 89 f8 48 c1 e8 03 0f b6 04
RSP: 0018:ffffc90003386ee0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888077740000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: ffffc90003387020 R08: ffffffff90b102af R09: 1ffffffff2162055
R10: dffffc0000000000 R11: fffffbfff2162056 R12: fffffffffffffffa
R13: 0000000000000000 R14: 1fffffffffffffff R15: 1fffffffffffffff
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91b9d5da08 CR3: 000000002e7a9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	ff 89 de e8 60 f7    	decl   -0x89f1722(%rcx)
   6:	56                   	push   %rsi
   7:	f7 85 db 0f 84 cc 01 	testl  $0xe8000001,-0x337bf025(%rbp)
   e:	00 00 e8
  11:	73 f4                	jae    0x7
  13:	56                   	push   %rsi
  14:	f7 48 bb 00 00 00 00 	testl  $0x0,-0x45(%rax)
  1b:	00 fc                	add    %bh,%ah
  1d:	ff                   	lcall  (bad)
  1e:	df 49 8d             	fisttps -0x73(%rcx)
  21:	7d 04                	jge    0x27
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 18          	movzbl (%rax,%rbx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	75 47                	jne    0x79
  32:	49 8d 7d 05          	lea    0x5(%r13),%rdi
  36:	48 89 f8             	mov    %rdi,%rax
  39:	48 c1 e8 03          	shr    $0x3,%rax
  3d:	0f                   	.byte 0xf
  3e:	b6 04                	mov    $0x4,%dh