Extracting prog: 1m0.688941376s
Minimizing prog: 7m13.001798776s
Simplifying prog options: 0s
Extracting C: 19.336590934s
Simplifying C: 3m27.84781539s


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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1-syz_open_dev$evdev-syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_open_dev$evdev
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)
syz_open_dev$evdev(0x0, 0x2, 0x0)
r1 = syz_usb_connect(0x0, 0x24, 0x0, 0x0)
syz_usb_control_io(r1, 0x0, 0x0)
syz_usb_control_io(r1, 0x0, 0x0)
syz_open_dev$evdev(0x0, 0x8000000000000000, 0x400000)

program crashed: WARNING: held lock freed in device_release_driver_internal
single: successfully extracted reproducer
found reproducer with 10 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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1-syz_open_dev$evdev-syz_usb_connect-syz_usb_control_io-syz_usb_control_io
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)
syz_open_dev$evdev(0x0, 0x2, 0x0)
r1 = syz_usb_connect(0x0, 0x24, 0x0, 0x0)
syz_usb_control_io(r1, 0x0, 0x0)
syz_usb_control_io(r1, 0x0, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1-syz_open_dev$evdev-syz_usb_connect-syz_usb_control_io
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)
syz_open_dev$evdev(0x0, 0x2, 0x0)
r1 = syz_usb_connect(0x0, 0x24, 0x0, 0x0)
syz_usb_control_io(r1, 0x0, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1-syz_open_dev$evdev-syz_usb_connect
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)
syz_open_dev$evdev(0x0, 0x2, 0x0)
syz_usb_connect(0x0, 0x24, 0x0, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1-syz_open_dev$evdev
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)
syz_open_dev$evdev(0x0, 0x2, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io-syz_usb_ep_write$ath9k_ep1
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write$ath9k_ep1(r0, 0x82, 0x40, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect-syz_usb_control_io
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
r0 = syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect-syz_usb_connect
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})
syz_usb_connect(0x0, 0x2d, &(0x7f0000000200)=ANY=[@ANYBLOB="1201410130f56920ac05190272f00102030109021b00010000100009045507010349020009058203"], 0x0)

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev-syz_usb_connect
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})

program crashed: WARNING: held lock freed in device_release_driver_internal
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_open_dev$evdev
detailed listing:
executing program 0:
syz_open_dev$evdev(&(0x7f00000000c0), 0x2000000003, 0x903d41)

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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})

program crashed: WARNING: held lock freed in device_release_driver_internal
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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x0, 0x0, &(0x7f0000000340)={0x0, 0x0, 0x0, 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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x2d, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x0, 0xfb, 0xdc, 0x42}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x5c, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x4a, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x2, 0x4}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, 0x0)

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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
program crashed: WARNING: held lock freed in device_release_driver_internal
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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})

program crashed: WARNING: held lock freed in device_release_driver_internal
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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})

program crashed: WARNING: held lock freed in device_release_driver_internal
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
detailed listing:
executing program 0:
syz_usb_connect(0x3, 0x63, &(0x7f0000000740)={{0x12, 0x1, 0x310, 0x78, 0xe8, 0x72, 0x20, 0x1f71, 0x3306, 0x2ac0, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x51, 0x2, 0x3, 0x1, 0x80, 0x5, "", [{{0x9, 0x4, 0xdf, 0x0, 0x0, 0x46, 0x35, 0x34, 0xf}}, {{0x9, 0x4, 0x19, 0x6, 0x5, 0xfb, 0xdc, 0x42, 0x0, [], [{{0x9, 0x5, 0x80, 0x10, 0x200, 0x6, 0x6, 0x4, [@generic={0x9, 0x4, "df9b52d017dc73"}]}}, {{0x9, 0x5, 0xd, 0x0, 0x200, 0xaf, 0x2, 0x83}}, {{0x9, 0x5, 0x8b, 0x0, 0x20, 0x1, 0x8, 0x8}}, {{0x9, 0x5, 0x8, 0x0, 0x200, 0x8, 0x1b, 0x6}}, {{0x9, 0x5, 0xe, 0x1, 0x200, 0x3, 0x9, 0x40}}]}}]}}]}}, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0})

program crashed: WARNING: held lock freed in device_release_driver_internal
validation run: crashed=true
reproducing took 13m59.935140931s
repro crashed as (corrupted=false):
usb 5-1: SerialNumber: syz
usbtv 5-1:3.223: Fushicai USBTV007 Audio-Video Grabber
usb 5-1: USB disconnect, device number 2
=========================
WARNING: held lock freed!
syzkaller #0 Not tainted
-------------------------
kworker/3:1/50 is freeing memory ffff88804c678000-ffff88804c6787ff, with a lock still held there!
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb2/0x620 drivers/base/dd.c:1369
locks held by kworker/3:1/50: 5, last CPU#3:
 #0: ffff88802279f540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1466/0x1b10 kernel/workqueue.c:3371
 #1: ffffc9000071fd08 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0xa2c/0x1b10 kernel/workqueue.c:3372
 #2: ffff88802604c1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802604c1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x1bb/0x4420 drivers/usb/core/hub.c:5917
 #3: ffff888014d841d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888014d841d8 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0x10a/0x9a0 drivers/usb/core/hub.c:2346
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb2/0x620 drivers/base/dd.c:1369

stack backtrace:
CPU: 3 UID: 0 PID: 50 Comm: kworker/3:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_freed_lock_bug kernel/locking/lockdep.c:6789 [inline]
 debug_check_no_locks_freed+0x115/0x120 kernel/locking/lockdep.c:6824
 slab_free_hook mm/slub.c:2676 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x180/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 v4l2_device_disconnect+0x60/0xc0 drivers/media/v4l2-core/v4l2-device.c:83
 usbtv_video_free+0x25/0x30 drivers/media/usb/usbtv/usbtv-video.c:967
 usbtv_disconnect+0x58/0xa0 drivers/media/usb/usbtv/usbtv-core.c:140
 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
==================================================================
BUG: KASAN: slab-use-after-free in usb_unbind_interface+0x935/0x9e0 drivers/usb/core/driver.c:464
Read of size 8 at addr ffff88804c678008 by task kworker/3:1/50

CPU: 3 UID: 0 PID: 50 Comm: kworker/3:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 usb_unbind_interface+0x935/0x9e0 drivers/usb/core/driver.c:464
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 50:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 usb_set_configuration+0x10d0/0x1dc0 drivers/usb/core/message.c:2102
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3776
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2713
 usb_new_device include/linux/workqueue.h:715 [inline]
 hub_port_connect drivers/usb/core/hub.c:5585 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 50:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 v4l2_device_disconnect+0x60/0xc0 drivers/media/v4l2-core/v4l2-device.c:83
 usbtv_video_free+0x25/0x30 drivers/media/usb/usbtv/usbtv-video.c:967
 usbtv_disconnect+0x58/0xa0 drivers/media/usb/usbtv/usbtv-core.c:140
 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88804c678000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 8 bytes inside of
 freed 2048-byte region [ffff88804c678000, ffff88804c678800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4c678
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000040 ffff88801d042f00 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
head: 04fff00000000040 ffff88801d042f00 dead000000000100 dead000000000122
head: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
head: 04fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5757, tgid 5757 (kworker/u32:2), ts 46015131472
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_node_track_caller_noprof+0x6a8/0x870 mm/slub.c:5545
 kmalloc_reserve+0xe8/0x350 net/core/skbuff.c:637
 __alloc_skb+0x185/0x710 net/core/skbuff.c:715
 alloc_skb include/linux/skbuff.h:1384 [inline]
 nlmsg_new include/net/netlink.h:1055 [inline]
 rtmsg_ifinfo_build_skb+0x81/0x260 net/core/rtnetlink.c:4585
 unregister_netdevice_many_notify+0x11ea/0x2150 net/core/dev.c:12567
 unregister_netdevice_many net/core/dev.c:12635 [inline]
 default_device_exit_batch+0x6c6/0x890 net/core/dev.c:13347
 ops_exit_list net/core/net_namespace.c:206 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:253
 cleanup_net+0x499/0x920 net/core/net_namespace.c:706
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
page last free pid 50 tgid 50 ts 45566866225 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_node_noprof+0x282/0x6e0 mm/slub.c:5068
 __alloc_skb+0x140/0x710 net/core/skbuff.c:704
 alloc_skb include/linux/skbuff.h:1384 [inline]
 mld_newpack.isra.0+0x18e/0xa20 net/ipv6/mcast.c:1810
 add_grhead+0x299/0x340 net/ipv6/mcast.c:1921
 add_grec+0x1389/0x1930 net/ipv6/mcast.c:2060
 mld_send_cr net/ipv6/mcast.c:2185 [inline]
 mld_ifc_work+0x3c5/0xc10 net/ipv6/mcast.c:2739
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88804c677f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88804c677f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88804c678000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88804c678080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88804c678100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
usb 5-1: SerialNumber: syz
usbtv 5-1:3.223: Fushicai USBTV007 Audio-Video Grabber
usb 5-1: USB disconnect, device number 2
=========================
WARNING: held lock freed!
syzkaller #0 Not tainted
-------------------------
kworker/3:1/50 is freeing memory ffff88804c678000-ffff88804c6787ff, with a lock still held there!
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb2/0x620 drivers/base/dd.c:1369
locks held by kworker/3:1/50: 5, last CPU#3:
 #0: ffff88802279f540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1466/0x1b10 kernel/workqueue.c:3371
 #1: ffffc9000071fd08 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0xa2c/0x1b10 kernel/workqueue.c:3372
 #2: ffff88802604c1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802604c1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x1bb/0x4420 drivers/usb/core/hub.c:5917
 #3: ffff888014d841d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888014d841d8 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0x10a/0x9a0 drivers/usb/core/hub.c:2346
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1171 [inline]
 #4: ffff88804c6781a0 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb2/0x620 drivers/base/dd.c:1369

stack backtrace:
CPU: 3 UID: 0 PID: 50 Comm: kworker/3:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_freed_lock_bug kernel/locking/lockdep.c:6789 [inline]
 debug_check_no_locks_freed+0x115/0x120 kernel/locking/lockdep.c:6824
 slab_free_hook mm/slub.c:2676 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x180/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 v4l2_device_disconnect+0x60/0xc0 drivers/media/v4l2-core/v4l2-device.c:83
 usbtv_video_free+0x25/0x30 drivers/media/usb/usbtv/usbtv-video.c:967
 usbtv_disconnect+0x58/0xa0 drivers/media/usb/usbtv/usbtv-core.c:140
 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
==================================================================
BUG: KASAN: slab-use-after-free in usb_unbind_interface+0x935/0x9e0 drivers/usb/core/driver.c:464
Read of size 8 at addr ffff88804c678008 by task kworker/3:1/50

CPU: 3 UID: 0 PID: 50 Comm: kworker/3:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 usb_unbind_interface+0x935/0x9e0 drivers/usb/core/driver.c:464
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 50:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 usb_set_configuration+0x10d0/0x1dc0 drivers/usb/core/message.c:2102
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3776
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2713
 usb_new_device include/linux/workqueue.h:715 [inline]
 hub_port_connect drivers/usb/core/hub.c:5585 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 50:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 v4l2_device_disconnect+0x60/0xc0 drivers/media/v4l2-core/v4l2-device.c:83
 usbtv_video_free+0x25/0x30 drivers/media/usb/usbtv/usbtv-video.c:967
 usbtv_disconnect+0x58/0xa0 drivers/media/usb/usbtv/usbtv-core.c:140
 usb_unbind_interface+0x1dd/0x9e0 drivers/usb/core/driver.c:461
 device_remove drivers/base/dd.c:618 [inline]
 device_remove+0x12a/0x180 drivers/base/dd.c:610
 __device_release_driver drivers/base/dd.c:1349 [inline]
 device_release_driver_internal+0x44e/0x620 drivers/base/dd.c:1372
 bus_remove_device+0x2bc/0x560 drivers/base/bus.c:664
 device_del+0x376/0x9b0 drivers/base/core.c:3965
 usb_disable_device+0x367/0x810 drivers/usb/core/message.c:1484
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88804c678000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 8 bytes inside of
 freed 2048-byte region [ffff88804c678000, ffff88804c678800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4c678
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 04fff00000000040 ffff88801d042f00 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
head: 04fff00000000040 ffff88801d042f00 dead000000000100 dead000000000122
head: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
head: 04fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5757, tgid 5757 (kworker/u32:2), ts 46015131472
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_node_track_caller_noprof+0x6a8/0x870 mm/slub.c:5545
 kmalloc_reserve+0xe8/0x350 net/core/skbuff.c:637
 __alloc_skb+0x185/0x710 net/core/skbuff.c:715
 alloc_skb include/linux/skbuff.h:1384 [inline]
 nlmsg_new include/net/netlink.h:1055 [inline]
 rtmsg_ifinfo_build_skb+0x81/0x260 net/core/rtnetlink.c:4585
 unregister_netdevice_many_notify+0x11ea/0x2150 net/core/dev.c:12567
 unregister_netdevice_many net/core/dev.c:12635 [inline]
 default_device_exit_batch+0x6c6/0x890 net/core/dev.c:13347
 ops_exit_list net/core/net_namespace.c:206 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:253
 cleanup_net+0x499/0x920 net/core/net_namespace.c:706
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
page last free pid 50 tgid 50 ts 45566866225 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_node_noprof+0x282/0x6e0 mm/slub.c:5068
 __alloc_skb+0x140/0x710 net/core/skbuff.c:704
 alloc_skb include/linux/skbuff.h:1384 [inline]
 mld_newpack.isra.0+0x18e/0xa20 net/ipv6/mcast.c:1810
 add_grhead+0x299/0x340 net/ipv6/mcast.c:1921
 add_grec+0x1389/0x1930 net/ipv6/mcast.c:2060
 mld_send_cr net/ipv6/mcast.c:2185 [inline]
 mld_ifc_work+0x3c5/0xc10 net/ipv6/mcast.c:2739
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Memory state around the buggy address:
 ffff88804c677f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88804c677f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88804c678000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88804c678080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88804c678100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================