Extracting prog: 6m27.143579538s
Minimizing prog: 1h51m22.977406347s
Simplifying prog options: 21m56.902254038s
Extracting C: 34.313891935s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: lost connection to test machine
program crashed: INFO: task hung in unbind_store
single: successfully extracted reproducer
found reproducer with 9 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
write(0xffffffffffffffff, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r0 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
fsmount(r0, 0x0, 0x0)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r1, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
move_mount(0xffffffffffffffff, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r2, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(0xffffffffffffffff, 0x0, 0x0)
move_mount(r1, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r2, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0)
r1 = fsmount(r0, 0x0, 0x0)
move_mount(r1, 0x0, 0xffffffffffffffff, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r2, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, 0x0, 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(0x0, 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, 0x0, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040), 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
program did not crash
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: INFO: task hung in unbind_store
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: INFO: task hung in unbind_store
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program did not crash
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: lost connection to test machine
ignore low priority crash: lost connection to test machine
validation run: crashed=false
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: INFO: task hung in unbind_store
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: INFO: task hung in unbind_store
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-move_mount-syz_usb_connect-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000000)='./sys_mnt\x00', 0x0, 0x0)
r1 = fsopen(&(0x7f0000001000)='sysfs\x00', 0x0)
fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0)
r2 = fsmount(r1, 0x0, 0x0)
move_mount(r2, 0x0, r0, 0x0, 0x44)
syz_usb_connect(0x3, 0x4e, &(0x7f0000003000)=ANY=[@ANYBLOB="12010002000000401107500500010000000109023c0001010080fa0904000006ff00000007058e0200020007050e02000200070501020002000705030200020007058d0200020007050d02000200"], 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000006000)='./sys_mnt/bus/usb/drivers/sisusb/unbind\x00', 0x1, 0x0)
write(r3, &(0x7f0000000040)='5-1:1.0\x00', 0x8)

program crashed: INFO: task hung in unbind_store
validation run: crashed=true
reproducing took 2h35m46.483293377s
repro crashed as (corrupted=false):
INFO: task syz.4.23:6172 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.23        state:D stack:26888 pid:6172  tgid:6172  ppid:6123   task_flags:0x400140 flags:0x08080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x17d4/0x5820 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7419
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 __device_driver_lock drivers/base/dd.c:1170 [inline]
 device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
 unbind_store+0x1a1/0x1d0 drivers/base/bus.c:244
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x27a/0x6a0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fc40ec
RSP: 002b:00000000f75afa5c EFLAGS: 00000206 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000080000040
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
locks held by kworker/0:0/9: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a4811d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a4811d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff88806f2fc1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff88806f2fc1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88807f61b1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88807f61b1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/1:0/24: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a0491d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a0491d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88801232c1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88801232c1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by khungtaskd/31: 1, last CPU#1:
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6793
locks held by kworker/0:2/189: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3a61d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3a61d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029ff11d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029ff11d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888029a891a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888029a891a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by getty/5370: 2, on CPU#1:
 #0: ffff888035e060a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 drivers/tty/n_tty.c:2211
locks held by kworker/1:4/5709: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a09a1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a09a1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888034a131d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888034a131d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888033f931a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888033f931a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/0:4/5821: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3e11d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3e11d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888031b7a1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888031b7a1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880237ec1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880237ec1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.4.23/6172: 3, on CPU#1:
 #0: ffff88802aea0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff88802aea0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88802c471880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by dhcpcd/6201: 2, on CPU#1:
 #0: ffff888056933bc0 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1025 [inline]
 #0: ffff888056933bc0 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: __sock_release+0x7a/0x1f0 net/socket.c:734
 #1: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:343 [inline]
 #1: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770 kernel/rcu/tree_exp.h:966
locks held by kworker/0:5/6204: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3cd1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3cd1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff88802c2d91d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff88802c2d91d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880216b71a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880216b71a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.5.24/6283: 3, on CPU#1:
 #0: ffff88807bcb2460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff88807bcb2460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff888072bb8080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.6.25/6304: 3, on CPU#1:
 #0: ffff888058db0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888058db0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff888072af8880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/0:6/6329: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a2751d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a2751d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff8880683dc1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff8880683dc1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88802b7a61a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88802b7a61a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/1:6/6330: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a5531d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a5531d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029fcb1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029fcb1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888022f881a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888022f881a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.7.26/6331: 3, on CPU#1:
 #0: ffff8880730f0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880730f0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88806fc40c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.8.27/6351: 3, on CPU#1:
 #0: ffff8880579aa460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880579aa460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807cd5dc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/0:7/6354: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a1c51d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a1c51d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff8880551f71d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff8880551f71d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880581f31a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880581f31a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.9.28/6372: 3, on CPU#0:
 #0: ffff888057c6a460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888057c6a460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88806fc08c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.0.29/6399: 3, on CPU#0:
 #0: ffff8880264b8460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880264b8460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807b047880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.1.30/6450: 3, on CPU#0:
 #0: ffff888058b08460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888058b08460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807f72a080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/1:8/6638: 3, on CPU#1:
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff888033ce4250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x1fd/0x3b0 drivers/net/netdevsim/fib.c:1490
locks held by syz.2.31/6645: 3, on CPU#0:
 #0: ffff888068248460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888068248460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807cd3ec80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz-executor/6788: 1, on CPU#0:
 #0: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline]
 #0: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770 kernel/rcu/tree_exp.h:966
locks held by dhcpcd-run-hook/6853: 2, last CPU#1:
 #0: ffff888058439078 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock include/linux/mmap_lock.h:544 [inline]
 #0: ffff888058439078 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x2d8/0x9f0 mm/mmap.c:1323
 #1: ffff8880b873bb20 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160 kernel/sched/core.c:677

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123
 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66
 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xfd7/0x1030 kernel/hung_task.c:561
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6855 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__kasan_check_byte+0x2c/0x40 mm/kasan/common.c:578
Code: 40 d6 41 56 53 48 89 f3 49 89 fe e8 3e 15 00 00 84 c0 75 16 be 01 00 00 00 4c 89 f7 31 d2 48 89 d9 89 c3 e8 f6 04 00 00 89 d8 <5b> 41 5e c3 cc cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc900047f74a0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8242dbd6 RCX: 8000000000000003
RDX: 0000000000000000 RSI: ffffffff8242dbd6 RDI: 1ffffffff1dab49c
RBP: ffffffff8242dbba R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff9400005f741 R12: 0000000000000002
R13: ffffffff8ed5a4e0 R14: ffffffff8ed5a4e0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124df1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffffcfc10a8 CR3: 000000000eb46000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kasan_check_byte include/linux/kasan.h:402 [inline]
 lock_acquire+0x84/0x350 kernel/locking/lockdep.c:5860
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
 pfn_valid+0xd6/0x490 include/linux/mmzone.h:2266
 page_table_check_clear+0x21/0x500 mm/page_table_check.c:70
 ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
 get_and_clear_full_ptes include/linux/pgtable.h:879 [inline]
 zap_present_folio_ptes mm/memory.c:1717 [inline]
 zap_present_ptes mm/memory.c:1799 [inline]
 do_zap_pte_range mm/memory.c:1901 [inline]
 zap_pte_range mm/memory.c:2003 [inline]
 zap_pmd_range mm/memory.c:2089 [inline]
 zap_pud_range mm/memory.c:2117 [inline]
 zap_p4d_range mm/memory.c:2138 [inline]
 __zap_vma_range+0x39b9/0x4f20 mm/memory.c:2178
 unmap_vmas+0x390/0x550 mm/memory.c:2247
 exit_mmap+0x293/0x9f0 mm/mmap.c:1315
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x221/0x2d0 kernel/exit.c:614
 do_exit+0x6cd/0x2360 kernel/exit.c:996
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1151
 __do_sys_exit_group kernel/exit.c:1162 [inline]
 __se_sys_exit_group kernel/exit.c:1160 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1160
 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56f18db6c5
Code: Unable to access opcode bytes at 0x7f56f18db69b.
RSP: 002b:00007ffffcfc1748 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffffcfc1a04 RCX: 00007f56f18db6c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007ffffcfc1840 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffffcfc1a80 R14: 00007f56f1aeb000 R15: 000055b924e58d98
 </TASK>

final repro crashed as (corrupted=false):
INFO: task syz.4.23:6172 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.23        state:D stack:26888 pid:6172  tgid:6172  ppid:6123   task_flags:0x400140 flags:0x08080002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x17d4/0x5820 kernel/sched/core.c:7270
 __schedule_loop kernel/sched/core.c:7347 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7362
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:7419
 __mutex_lock_common kernel/locking/mutex.c:726 [inline]
 __mutex_lock+0x7c1/0x1550 kernel/locking/mutex.c:821
 device_lock include/linux/device.h:1104 [inline]
 __device_driver_lock drivers/base/dd.c:1170 [inline]
 device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
 unbind_store+0x1a1/0x1d0 drivers/base/bus.c:244
 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline]
 __do_fast_syscall_32+0x27a/0x6a0 arch/x86/entry/syscall_32.c:291
 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:316
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fc40ec
RSP: 002b:00000000f75afa5c EFLAGS: 00000206 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000080000040
RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
locks held by kworker/0:0/9: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a4811d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a4811d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff88806f2fc1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff88806f2fc1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88807f61b1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88807f61b1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/1:0/24: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900001e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a0491d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a0491d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88801232c1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88801232c1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by khungtaskd/31: 1, last CPU#1:
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8ed5a420 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6793
locks held by kworker/0:2/189: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90002f67c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3a61d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3a61d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029ff11d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029ff11d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888029a891a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888029a891a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by getty/5370: 2, on CPU#1:
 #0: ffff888035e060a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc9000322b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 drivers/tty/n_tty.c:2211
locks held by kworker/1:4/5709: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900041f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a09a1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a09a1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888034a131d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888034a131d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888033f931a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888033f931a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/0:4/5821: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90003277c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3e11d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3e11d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888031b7a1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888031b7a1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880237ec1a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880237ec1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.4.23/6172: 3, on CPU#1:
 #0: ffff88802aea0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff88802aea0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88802c471880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by dhcpcd/6201: 2, on CPU#1:
 #0: ffff888056933bc0 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1025 [inline]
 #0: ffff888056933bc0 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: __sock_release+0x7a/0x1f0 net/socket.c:734
 #1: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:343 [inline]
 #1: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770 kernel/rcu/tree_exp.h:966
locks held by kworker/0:5/6204: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90003377c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a3cd1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a3cd1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff88802c2d91d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff88802c2d91d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880216b71a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880216b71a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.5.24/6283: 3, on CPU#1:
 #0: ffff88807bcb2460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff88807bcb2460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff888072bb8080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.6.25/6304: 3, on CPU#1:
 #0: ffff888058db0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888058db0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff888072af8880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/0:6/6329: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900037a7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a2751d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a2751d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff8880683dc1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff8880683dc1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff88802b7a61a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff88802b7a61a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by kworker/1:6/6330: 5, on CPU#1:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900037b7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a5531d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a5531d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff888029fcb1d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff888029fcb1d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff888022f881a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff888022f881a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.7.26/6331: 3, on CPU#1:
 #0: ffff8880730f0460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880730f0460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88806fc40c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.8.27/6351: 3, on CPU#1:
 #0: ffff8880579aa460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880579aa460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807cd5dc80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/0:7/6354: 5, on CPU#0:
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff888022eda540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc900038f7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff88802a1c51d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff88802a1c51d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30 drivers/usb/core/hub.c:5907
 #3: ffff8880551f71d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #3: ffff8880551f71d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
 #4: ffff8880581f31a0 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #4: ffff8880581f31a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450 drivers/base/dd.c:1073
locks held by syz.9.28/6372: 3, on CPU#0:
 #0: ffff888057c6a460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888057c6a460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88806fc08c80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.0.29/6399: 3, on CPU#0:
 #0: ffff8880264b8460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff8880264b8460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807b047880 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz.1.30/6450: 3, on CPU#0:
 #0: ffff888058b08460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888058b08460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807f72a080 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by kworker/1:8/6638: 3, on CPU#1:
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #0: ffff88801b06b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3352 [inline]
 #1: ffffc90004557c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 kernel/workqueue.c:3470
 #2: ffff888033ce4250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x1fd/0x3b0 drivers/net/netdevsim/fib.c:1490
locks held by syz.2.31/6645: 3, on CPU#0:
 #0: ffff888068248460 (sb_writers#7){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2754 [inline]
 #0: ffff888068248460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x22b/0xba0 fs/read_write.c:683
 #1: ffff88807cd3ec80 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d8/0x540 fs/kernfs/file.c:336
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1104 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1170 [inline]
 #2: ffff888029a401d8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0x93/0x880 drivers/base/dd.c:1369
locks held by syz-executor/6788: 1, on CPU#0:
 #0: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:311 [inline]
 #0: ffffffff8ed607e8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770 kernel/rcu/tree_exp.h:966
locks held by dhcpcd-run-hook/6853: 2, last CPU#1:
 #0: ffff888058439078 (&mm->mmap_lock){++++}-{4:4}, at: mmap_write_lock include/linux/mmap_lock.h:544 [inline]
 #0: ffff888058439078 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x2d8/0x9f0 mm/mmap.c:1323
 #1: ffff8880b873bb20 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2d/0x160 kernel/sched/core.c:677

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:123
 nmi_trigger_cpumask_backtrace+0x17d/0x390 lib/nmi_backtrace.c:66
 trigger_all_cpu_backtrace include/linux/nmi.h:164 [inline]
 __sys_info lib/sys_info.c:157 [inline]
 sys_info+0x135/0x170 lib/sys_info.c:165
 check_hung_uninterruptible_tasks kernel/hung_task.c:353 [inline]
 watchdog+0xfd7/0x1030 kernel/hung_task.c:561
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6855 Comm: dhcpcd-run-hook Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__kasan_check_byte+0x2c/0x40 mm/kasan/common.c:578
Code: 40 d6 41 56 53 48 89 f3 49 89 fe e8 3e 15 00 00 84 c0 75 16 be 01 00 00 00 4c 89 f7 31 d2 48 89 d9 89 c3 e8 f6 04 00 00 89 d8 <5b> 41 5e c3 cc cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90
RSP: 0018:ffffc900047f74a0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff8242dbd6 RCX: 8000000000000003
RDX: 0000000000000000 RSI: ffffffff8242dbd6 RDI: 1ffffffff1dab49c
RBP: ffffffff8242dbba R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffff9400005f741 R12: 0000000000000002
R13: ffffffff8ed5a4e0 R14: ffffffff8ed5a4e0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff888124df1000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffffcfc10a8 CR3: 000000000eb46000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 kasan_check_byte include/linux/kasan.h:402 [inline]
 lock_acquire+0x84/0x350 kernel/locking/lockdep.c:5860
 rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
 rcu_read_lock_sched include/linux/rcupdate.h:947 [inline]
 pfn_valid+0xd6/0x490 include/linux/mmzone.h:2266
 page_table_check_clear+0x21/0x500 mm/page_table_check.c:70
 ptep_get_and_clear_full arch/x86/include/asm/jump_label.h:-1 [inline]
 get_and_clear_full_ptes include/linux/pgtable.h:879 [inline]
 zap_present_folio_ptes mm/memory.c:1717 [inline]
 zap_present_ptes mm/memory.c:1799 [inline]
 do_zap_pte_range mm/memory.c:1901 [inline]
 zap_pte_range mm/memory.c:2003 [inline]
 zap_pmd_range mm/memory.c:2089 [inline]
 zap_pud_range mm/memory.c:2117 [inline]
 zap_p4d_range mm/memory.c:2138 [inline]
 __zap_vma_range+0x39b9/0x4f20 mm/memory.c:2178
 unmap_vmas+0x390/0x550 mm/memory.c:2247
 exit_mmap+0x293/0x9f0 mm/mmap.c:1315
 __mmput+0x118/0x420 kernel/fork.c:1193
 exit_mm+0x221/0x2d0 kernel/exit.c:614
 do_exit+0x6cd/0x2360 kernel/exit.c:996
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1151
 __do_sys_exit_group kernel/exit.c:1162 [inline]
 __se_sys_exit_group kernel/exit.c:1160 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1160
 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56f18db6c5
Code: Unable to access opcode bytes at 0x7f56f18db69b.
RSP: 002b:00007ffffcfc1748 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffffcfc1a04 RCX: 00007f56f18db6c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000000
RBP: 0000000000000003 R08: 00007ffffcfc1840 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007ffffcfc1a80 R14: 00007f56f1aeb000 R15: 000055b924e58d98
 </TASK>