Extracting prog: 44.160060808s
Minimizing prog: 25m23.233257362s
Simplifying prog options: 0s
Extracting C: 2m13.994360558s
Simplifying C: 11m16.708197853s


extracting reproducer from 24 programs
first checking the prog from the crash report
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)

program did not crash
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-syz_usb_control_io$cdc_ecm-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
ioctl$I2C_RDWR(0xffffffffffffffff, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r0, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
syz_usb_control_io$cdc_ecm(0xffffffffffffffff, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r0 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r0, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, 0x0)
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, 0x0, 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(0x0, 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, 0x0)

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={0x0})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x0, 0x0}], 0x1})

program did not crash
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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x0, &(0x7f0000000340)}], 0x1})

program did not crash
extracting C reproducer
testing compiled C 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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
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: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-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
testing program (duration=30s, {Threaded:false Repeat:false 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}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false 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}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false 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}}): syz_usb_connect-syz_usb_control_io$cdc_ecm-syz_open_dev$I2C-ioctl$I2C_RDWR
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="120100009dea7840b418fbff7bdc01020301090212000100000000090401"], 0x0)
syz_usb_control_io$cdc_ecm(r0, 0x0, &(0x7f00000008c0)={0x1c, &(0x7f0000010000)=ANY=[@ANYBLOB="00000100000001"], 0x0, 0x0})
r1 = syz_open_dev$I2C(&(0x7f0000000000), 0x1, 0x402)
ioctl$I2C_RDWR(r1, 0x707, &(0x7f0000000200)={&(0x7f0000000140)=[{0xff, 0x0, 0x1, &(0x7f0000000340)="81"}], 0x1})

program crashed: KASAN: slab-out-of-bounds Read in ec168_i2c_xfer
validation run: crashed=true
reproducing took 44m54.901113765s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in ec168_i2c_xfer+0x4d5/0x630 drivers/media/usb/dvb-usb-v2/ec168.c:143
Read of size 1 at addr ffff888026a5be61 by task syz.0.17/5934

CPU: 1 PID: 5934 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:468
 kasan_report+0x117/0x150 mm/kasan/report.c:581
 ec168_i2c_xfer+0x4d5/0x630 drivers/media/usb/dvb-usb-v2/ec168.c:143
 __i2c_transfer+0x891/0x2090 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x261/0x3a0 drivers/i2c/i2c-core-base.c:2355
 i2cdev_ioctl_rdwr+0x3b0/0x690 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x6a0/0x840 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f42e259e159
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:00007ffe002194f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f42e2825fa0 RCX: 00007f42e259e159
RDX: 0000200000000200 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f42e2635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42e2825fac R14: 00007f42e2825fa0 R15: 00007f42e2825fa0
 </TASK>

Allocated by task 5934:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:384
 kasan_kmalloc include/linux/kasan.h:198 [inline]
 __do_kmalloc_node mm/slab_common.c:1007 [inline]
 __kmalloc_node_track_caller+0xb4/0x230 mm/slab_common.c:1027
 memdup_user+0x2b/0xc0 mm/util.c:197
 i2cdev_ioctl_rdwr+0x116/0x690 drivers/i2c/i2c-dev.c:256
 i2cdev_ioctl+0x6a0/0x840 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888026a5be60
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes to the right of
 allocated 1-byte region [ffff888026a5be60, ffff888026a5be61)

The buggy address belongs to the physical page:
page:ffffea00009a96c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26a5b
flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888017c41280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000660066 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 5894, tgid 5894 (syz-executor), ts 94367264255, free_ts 94351655245
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1582
 prep_new_page mm/page_alloc.c:1589 [inline]
 get_page_from_freelist+0x2181/0x22a0 mm/page_alloc.c:3221
 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4501
 alloc_slab_page+0x5d/0x180 mm/slub.c:1881
 allocate_slab mm/slub.c:2028 [inline]
 new_slab+0x87/0x2d0 mm/slub.c:2081
 ___slab_alloc+0xc5c/0x12f0 mm/slub.c:3253
 __slab_alloc mm/slub.c:3339 [inline]
 __slab_alloc_node mm/slub.c:3392 [inline]
 slab_alloc_node mm/slub.c:3485 [inline]
 __kmem_cache_alloc_node+0x11f/0x250 mm/slub.c:3534
 __do_kmalloc_node mm/slab_common.c:1006 [inline]
 __kmalloc_node_track_caller+0xa4/0x230 mm/slab_common.c:1027
 kstrdup+0x3b/0x80 mm/util.c:62
 __kernfs_new_node+0xaa/0x7f0 fs/kernfs/dir.c:620
 kernfs_new_node+0x14c/0x260 fs/kernfs/dir.c:700
 kernfs_create_link+0xa7/0x200 fs/kernfs/symlink.c:39
 sysfs_do_create_link_sd+0x83/0x110 fs/sysfs/symlink.c:44
 device_add_class_symlinks+0x1cf/0x240 drivers/base/core.c:3444
 device_add+0x4f9/0xc40 drivers/base/core.c:3636
 device_create_groups_vargs drivers/base/core.c:4427 [inline]
 device_create+0x26a/0x300 drivers/base/core.c:4466
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 discard_slab mm/slub.c:2127 [inline]
 __unfreeze_partials+0x1cf/0x210 mm/slub.c:2667
 put_cpu_partial+0x17c/0x250 mm/slub.c:2743
 __slab_free+0x319/0x400 mm/slub.c:3700
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x75/0xd0 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
 slab_alloc_node mm/slub.c:3495 [inline]
 __kmem_cache_alloc_node+0x194/0x250 mm/slub.c:3534
 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1098
 kmalloc include/linux/slab.h:600 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 ref_tracker_alloc+0x163/0x4b0 lib/ref_tracker.c:203
 __netdev_tracker_alloc include/linux/netdevice.h:4149 [inline]
 netdev_hold include/linux/netdevice.h:4178 [inline]
 netdev_queue_add_kobject net/core/net-sysfs.c:1690 [inline]
 netdev_queue_update_kobjects+0x18f/0x480 net/core/net-sysfs.c:1745
 register_queue_kobjects net/core/net-sysfs.c:1806 [inline]
 netdev_register_kobject+0x277/0x320 net/core/net-sysfs.c:2046
 register_netdevice+0x12aa/0x1ba0 net/core/dev.c:10342
 ipvlan_link_new+0x38d/0xae0 drivers/net/ipvlan/ipvlan_main.c:590

Memory state around the buggy address:
 ffff888026a5bd00: fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc
 ffff888026a5bd80: fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc
>ffff888026a5be00: fc fc 00 fc fc fc fc 00 fc fc fc fc 01 fc fc fc
                                                       ^
 ffff888026a5be80: fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc
 ffff888026a5bf00: 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in ec168_i2c_xfer+0x4d5/0x630 drivers/media/usb/dvb-usb-v2/ec168.c:143
Read of size 1 at addr ffff888026a5be61 by task syz.0.17/5934

CPU: 1 PID: 5934 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xa8/0x210 mm/kasan/report.c:468
 kasan_report+0x117/0x150 mm/kasan/report.c:581
 ec168_i2c_xfer+0x4d5/0x630 drivers/media/usb/dvb-usb-v2/ec168.c:143
 __i2c_transfer+0x891/0x2090 drivers/i2c/i2c-core-base.c:-1
 i2c_transfer+0x261/0x3a0 drivers/i2c/i2c-core-base.c:2355
 i2cdev_ioctl_rdwr+0x3b0/0x690 drivers/i2c/i2c-dev.c:297
 i2cdev_ioctl+0x6a0/0x840 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f42e259e159
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:00007ffe002194f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f42e2825fa0 RCX: 00007f42e259e159
RDX: 0000200000000200 RSI: 0000000000000707 RDI: 0000000000000004
RBP: 00007f42e2635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42e2825fac R14: 00007f42e2825fa0 R15: 00007f42e2825fa0
 </TASK>

Allocated by task 5934:
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 ____kasan_kmalloc mm/kasan/common.c:375 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:384
 kasan_kmalloc include/linux/kasan.h:198 [inline]
 __do_kmalloc_node mm/slab_common.c:1007 [inline]
 __kmalloc_node_track_caller+0xb4/0x230 mm/slab_common.c:1027
 memdup_user+0x2b/0xc0 mm/util.c:197
 i2cdev_ioctl_rdwr+0x116/0x690 drivers/i2c/i2c-dev.c:256
 i2cdev_ioctl+0x6a0/0x840 drivers/i2c/i2c-dev.c:458
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff888026a5be60
 which belongs to the cache kmalloc-8 of size 8
The buggy address is located 0 bytes to the right of
 allocated 1-byte region [ffff888026a5be60, ffff888026a5be61)

The buggy address belongs to the physical page:
page:ffffea00009a96c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x26a5b
flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888017c41280 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000660066 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 5894, tgid 5894 (syz-executor), ts 94367264255, free_ts 94351655245
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1c1/0x200 mm/page_alloc.c:1582
 prep_new_page mm/page_alloc.c:1589 [inline]
 get_page_from_freelist+0x2181/0x22a0 mm/page_alloc.c:3221
 __alloc_pages+0x1f0/0x460 mm/page_alloc.c:4501
 alloc_slab_page+0x5d/0x180 mm/slub.c:1881
 allocate_slab mm/slub.c:2028 [inline]
 new_slab+0x87/0x2d0 mm/slub.c:2081
 ___slab_alloc+0xc5c/0x12f0 mm/slub.c:3253
 __slab_alloc mm/slub.c:3339 [inline]
 __slab_alloc_node mm/slub.c:3392 [inline]
 slab_alloc_node mm/slub.c:3485 [inline]
 __kmem_cache_alloc_node+0x11f/0x250 mm/slub.c:3534
 __do_kmalloc_node mm/slab_common.c:1006 [inline]
 __kmalloc_node_track_caller+0xa4/0x230 mm/slab_common.c:1027
 kstrdup+0x3b/0x80 mm/util.c:62
 __kernfs_new_node+0xaa/0x7f0 fs/kernfs/dir.c:620
 kernfs_new_node+0x14c/0x260 fs/kernfs/dir.c:700
 kernfs_create_link+0xa7/0x200 fs/kernfs/symlink.c:39
 sysfs_do_create_link_sd+0x83/0x110 fs/sysfs/symlink.c:44
 device_add_class_symlinks+0x1cf/0x240 drivers/base/core.c:3444
 device_add+0x4f9/0xc40 drivers/base/core.c:3636
 device_create_groups_vargs drivers/base/core.c:4427 [inline]
 device_create+0x26a/0x300 drivers/base/core.c:4466
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1182 [inline]
 free_unref_page_prepare+0x7d7/0x8f0 mm/page_alloc.c:2366
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2459
 discard_slab mm/slub.c:2127 [inline]
 __unfreeze_partials+0x1cf/0x210 mm/slub.c:2667
 put_cpu_partial+0x17c/0x250 mm/slub.c:2743
 __slab_free+0x319/0x400 mm/slub.c:3700
 qlink_free mm/kasan/quarantine.c:166 [inline]
 qlist_free_all+0x75/0xd0 mm/kasan/quarantine.c:185
 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
 slab_alloc_node mm/slub.c:3495 [inline]
 __kmem_cache_alloc_node+0x194/0x250 mm/slub.c:3534
 kmalloc_trace+0x2a/0xe0 mm/slab_common.c:1098
 kmalloc include/linux/slab.h:600 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 ref_tracker_alloc+0x163/0x4b0 lib/ref_tracker.c:203
 __netdev_tracker_alloc include/linux/netdevice.h:4149 [inline]
 netdev_hold include/linux/netdevice.h:4178 [inline]
 netdev_queue_add_kobject net/core/net-sysfs.c:1690 [inline]
 netdev_queue_update_kobjects+0x18f/0x480 net/core/net-sysfs.c:1745
 register_queue_kobjects net/core/net-sysfs.c:1806 [inline]
 netdev_register_kobject+0x277/0x320 net/core/net-sysfs.c:2046
 register_netdevice+0x12aa/0x1ba0 net/core/dev.c:10342
 ipvlan_link_new+0x38d/0xae0 drivers/net/ipvlan/ipvlan_main.c:590

Memory state around the buggy address:
 ffff888026a5bd00: fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc
 ffff888026a5bd80: fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc
>ffff888026a5be00: fc fc 00 fc fc fc fc 00 fc fc fc fc 01 fc fc fc
                                                       ^
 ffff888026a5be80: fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc
 ffff888026a5bf00: 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc 00
==================================================================