Extracting prog: 9m32.252465321s
Minimizing prog: 1h40m57.185026128s
Simplifying prog options: 15m52.471754018s
Extracting C: 45.342718249s
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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: general protection fault in start_dirop
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x0, 0x0, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=7m59.332282632s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
program did not crash
simplifying guilty program options
testing program (duration=7m59.332282632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: general protection fault in start_dirop
extracting C reproducer
testing compiled C program (duration=7m59.332282632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
program did not crash
testing program (duration=7m59.332282632s, {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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program did not crash
testing program (duration=7m59.332282632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: KASAN: slab-use-after-free Read in lookup_noperm_common
validation run: crashed=true
testing program (duration=7m59.332282632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: general protection fault in start_dirop
validation run: crashed=true
testing program (duration=7m59.332282632s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-write
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x201, 0xd1, 0xa0, 0x5e, 0x20, 0xccd, 0x102, 0x890e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x8, 0x54, 0x40, 0x1, "", [{{0x9, 0x4, 0xbc, 0x80, 0x0, 0xc, 0xf1, 0xc7, 0x7f}}]}}]}}, &(0x7f0000000380)={0x0, 0x0, 0x0, 0x0})
mkdirat(0xffffffffffffff9c, &(0x7f0000000040)='./sys_mnt\x00', 0x1ff)
mount(0x0, &(0x7f00000000c0)='./sys_mnt\x00', &(0x7f0000000100)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./sys_mnt/bus/i2c/devices/i2c-2/new_device\x00', 0x1, 0x0)
write(r0, &(0x7f0000000280)='tps6598x 0x3', 0xc)

program crashed: general protection fault in start_dirop
validation run: crashed=true
reproducing took 2h17m41.487056578s
repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000028: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000140-0x0000000000000147]
CPU: 1 UID: 0 PID: 5958 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90003867368 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff81a2e9bd RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff81a2e9bd RDI: 0000000000000028
RBP: ffffc900038674a8 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000002f R11: 0000000000000000 R12: 0000000000000140
R13: 0000000000000000 R14: 0000000000000140 R15: 0000000000000001
FS:  000055557047c500(0000) GS:ffff88812498a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34563fff CR3: 00000000774c2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:573
 kasan_check_byte include/linux/kasan.h:402 [inline]
 lock_acquire+0x7d/0x350 kernel/locking/lockdep.c:5882
 down_write_nested+0x9d/0x210 kernel/locking/rwsem.c:1757
 inode_lock_nested include/linux/fs.h:1069 [inline]
 __start_dirop fs/namei.c:2918 [inline]
 start_dirop+0x4f/0x90 fs/namei.c:2942
 simple_start_creating+0xcc/0x110 fs/libfs.c:2308
 debugfs_start_creating+0xca/0x1b0 fs/debugfs/inode.c:397
 debugfs_create_dir+0x24/0x350 fs/debugfs/inode.c:575
 i2c_device_probe+0x814/0xbf0 drivers/i2c/i2c-core-base.c:589
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 i2c_new_client_device+0xa29/0x1130 drivers/i2c/i2c-core-base.c:1020
 new_device_store+0x24b/0x530 drivers/i2c/i2c-core-base.c:1308
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57e219e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd1105f858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f57e2425fa0 RCX: 00007f57e219e0d9
RDX: 000000000000000c RSI: 0000200000000280 RDI: 0000000000000004
RBP: 00007f57e2235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f57e2425fac R14: 00007f57e2425fa0 R15: 00007f57e2425fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90003867368 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff81a2e9bd RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff81a2e9bd RDI: 0000000000000028
RBP: ffffc900038674a8 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000002f R11: 0000000000000000 R12: 0000000000000140
R13: 0000000000000000 R14: 0000000000000140 R15: 0000000000000001
FS:  000055557047c500(0000) GS:ffff88812488a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd8aa76c78 CR3: 00000000774c2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  18:	48 c1 ef 03          	shr    $0x3,%rdi
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
* 26:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2a:	3c 08                	cmp    $0x8,%al
  2c:	0f 92 c0             	setb   %al
  2f:	c3                   	ret
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	66                   	data16
  36:	66                   	data16
  37:	66                   	data16
  38:	66                   	data16
  39:	66                   	data16
  3a:	66                   	data16
  3b:	2e                   	cs

final repro crashed as (corrupted=false):
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000028: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000140-0x0000000000000147]
CPU: 1 UID: 0 PID: 5958 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90003867368 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff81a2e9bd RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff81a2e9bd RDI: 0000000000000028
RBP: ffffc900038674a8 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000002f R11: 0000000000000000 R12: 0000000000000140
R13: 0000000000000000 R14: 0000000000000140 R15: 0000000000000001
FS:  000055557047c500(0000) GS:ffff88812498a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34563fff CR3: 00000000774c2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:573
 kasan_check_byte include/linux/kasan.h:402 [inline]
 lock_acquire+0x7d/0x350 kernel/locking/lockdep.c:5882
 down_write_nested+0x9d/0x210 kernel/locking/rwsem.c:1757
 inode_lock_nested include/linux/fs.h:1069 [inline]
 __start_dirop fs/namei.c:2918 [inline]
 start_dirop+0x4f/0x90 fs/namei.c:2942
 simple_start_creating+0xcc/0x110 fs/libfs.c:2308
 debugfs_start_creating+0xca/0x1b0 fs/debugfs/inode.c:397
 debugfs_create_dir+0x24/0x350 fs/debugfs/inode.c:575
 i2c_device_probe+0x814/0xbf0 drivers/i2c/i2c-core-base.c:589
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 i2c_new_client_device+0xa29/0x1130 drivers/i2c/i2c-core-base.c:1020
 new_device_store+0x24b/0x530 drivers/i2c/i2c-core-base.c:1308
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f57e219e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd1105f858 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f57e2425fa0 RCX: 00007f57e219e0d9
RDX: 000000000000000c RSI: 0000200000000280 RDI: 0000000000000004
RBP: 00007f57e2235024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f57e2425fac R14: 00007f57e2425fa0 R15: 00007f57e2425fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90003867368 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff81a2e9bd RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff81a2e9bd RDI: 0000000000000028
RBP: ffffc900038674a8 R08: 0000000000000001 R09: 0000000000000000
R10: 000000000000002f R11: 0000000000000000 R12: 0000000000000140
R13: 0000000000000000 R14: 0000000000000140 R15: 0000000000000001
FS:  000055557047c500(0000) GS:ffff88812488a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd8aa76c78 CR3: 00000000774c2000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 4 bytes skipped:
   0:	0f 1f 40 00          	nopl   0x0(%rax)
   4:	90                   	nop
   5:	90                   	nop
   6:	90                   	nop
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  18:	48 c1 ef 03          	shr    $0x3,%rdi
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
* 26:	0f b6 04 07          	movzbl (%rdi,%rax,1),%eax <-- trapping instruction
  2a:	3c 08                	cmp    $0x8,%al
  2c:	0f 92 c0             	setb   %al
  2f:	c3                   	ret
  30:	cc                   	int3
  31:	cc                   	int3
  32:	cc                   	int3
  33:	cc                   	int3
  34:	cc                   	int3
  35:	66                   	data16
  36:	66                   	data16
  37:	66                   	data16
  38:	66                   	data16
  39:	66                   	data16
  3a:	66                   	data16
  3b:	2e                   	cs