Extracting prog: 1m43.80610236s
Minimizing prog: 10m26.711163747s
Simplifying prog options: 0s
Extracting C: 57.534914494s
Simplifying C: 6m57.960034613s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
ioctl$TCSBRKP(0xffffffffffffffff, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-mkdirat-mount-openat-ioctl$TCSBRKP
detailed listing:
executing program 0:
syz_usb_connect(0x5, 0x4e, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000200000040cd06350100010000000109023c0001010080320904"], 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000400)='./dev\x00', 0x1ff)
mount(0x0, &(0x7f0000000500)='./dev\x00', &(0x7f0000000600)='devtmpfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000700)='./dev/ttyUSB0\x00', 0x0, 0x0)
ioctl$TCSBRKP(r0, 0x5425, 0x7)

program crashed: BUG: unable to handle kernel paging request in keyspan_break_ctl
validation run: crashed=true
reproducing took 22m59.916458323s
repro crashed as (corrupted=false):
Unable to handle kernel paging request at virtual address dfff800000000013
KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0
[dfff800000000013] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 4995 Comm: syz.1.22 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 03400005 (nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : keyspan_break_ctl+0x80/0xd0 drivers/usb/serial/keyspan.c:-1
lr : keyspan_break_ctl+0x6c/0xd0 drivers/usb/serial/keyspan.c:607
sp : ffff800092e07c20
x29: ffff800092e07c20 x28: 0000000000800000 x27: 1fffe000190023b0
x26: dfff800000000000 x25: ffff8000833dd440 x24: 1fffe0001e521604
x23: ffff0000f290b020 x22: 0000000000000000 x21: dfff800000000000
x20: 0000000000000000 x19: ffff0000eec70000 x18: 1fffe00035bd9828
x17: 0000000000000003 x16: ffff800088a77000 x15: 0000000000000000
x14: 000000000061c939 x13: 0000000000000001 x12: 0000000000000003
x11: ffff80008a527e28 x10: 0000000000000007 x9 : 0000000000000013
x8 : 000000000000009c x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800083438334
x2 : 0000000000000000 x1 : ffff0000c8011d80 x0 : 0000000000000000
Call trace:
 keyspan_break_ctl+0x80/0xd0 drivers/usb/serial/keyspan.c:-1 (P)
 serial_break+0xb0/0x124 drivers/usb/serial/usb-serial.c:538
 send_break+0x1b8/0x258 drivers/tty/tty_io.c:2458
 tty_ioctl+0xb5c/0xcb0 drivers/tty/tty_io.c:-1
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x154/0x1cc fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
Code: 3100069f d343fd09 1200090a 11000d4a (38f56929) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	3100069f 	cmn	w20, #0x1
   4:	d343fd09 	lsr	x9, x8, #3
   8:	1200090a 	and	w10, w8, #0x7
   c:	11000d4a 	add	w10, w10, #0x3
* 10:	38f56929 	ldrsb	w9, [x9, x21] <-- trapping instruction

final repro crashed as (corrupted=false):
Unable to handle kernel paging request at virtual address dfff800000000013
KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0
[dfff800000000013] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 4995 Comm: syz.1.22 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
pstate: 03400005 (nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : keyspan_break_ctl+0x80/0xd0 drivers/usb/serial/keyspan.c:-1
lr : keyspan_break_ctl+0x6c/0xd0 drivers/usb/serial/keyspan.c:607
sp : ffff800092e07c20
x29: ffff800092e07c20 x28: 0000000000800000 x27: 1fffe000190023b0
x26: dfff800000000000 x25: ffff8000833dd440 x24: 1fffe0001e521604
x23: ffff0000f290b020 x22: 0000000000000000 x21: dfff800000000000
x20: 0000000000000000 x19: ffff0000eec70000 x18: 1fffe00035bd9828
x17: 0000000000000003 x16: ffff800088a77000 x15: 0000000000000000
x14: 000000000061c939 x13: 0000000000000001 x12: 0000000000000003
x11: ffff80008a527e28 x10: 0000000000000007 x9 : 0000000000000013
x8 : 000000000000009c x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800083438334
x2 : 0000000000000000 x1 : ffff0000c8011d80 x0 : 0000000000000000
Call trace:
 keyspan_break_ctl+0x80/0xd0 drivers/usb/serial/keyspan.c:-1 (P)
 serial_break+0xb0/0x124 drivers/usb/serial/usb-serial.c:538
 send_break+0x1b8/0x258 drivers/tty/tty_io.c:2458
 tty_ioctl+0xb5c/0xcb0 drivers/tty/tty_io.c:-1
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x154/0x1cc fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606
Code: 3100069f d343fd09 1200090a 11000d4a (38f56929) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	3100069f 	cmn	w20, #0x1
   4:	d343fd09 	lsr	x9, x8, #3
   8:	1200090a 	and	w10, w8, #0x7
   c:	11000d4a 	add	w10, w10, #0x3
* 10:	38f56929 	ldrsb	w9, [x9, x21] <-- trapping instruction