Extracting prog: 3m42.48545762s
Minimizing prog: 2h0m6.450196419s
Simplifying prog options: 6m29.768731781s
Extracting C: 33.816135689s
Simplifying C: 7m51.231432429s


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}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs: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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: KASAN: slab-use-after-free Read in filp_flush
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
write(0xffffffffffffffff, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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}}): mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', 0x0, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(0x0, 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

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: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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400), 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: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-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: VFS: Close: file count is zero (use-after-free)
a never seen crash title: VFS: Close: file count is zero (use-after-free), ignore
simplifying guilty program options
testing program (duration=6m0s, {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}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: KASAN: slab-use-after-free Read in filp_flush
extracting C reproducer
testing compiled C program (duration=6m0s, {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}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: VFS: Close: file count is zero (use-after-free)
a never seen crash title: VFS: Close: file count is zero (use-after-free), ignore
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-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: KASAN: slab-use-after-free Read in filp_flush
extracting C reproducer
testing compiled C 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-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: KASAN: slab-use-after-free Read in filp_flush
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: KASAN: slab-use-after-free Read in filp_flush
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: VFS: Close: file count is zero (use-after-free)
a never seen crash title: VFS: Close: file count is zero (use-after-free), ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: VFS: Close: file count is zero (use-after-free)
a never seen crash title: VFS: Close: file count is zero (use-after-free), ignore
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: KASAN: slab-use-after-free Read in filp_flush
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
program crashed: KASAN: slab-use-after-free Read in filp_flush
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: KASAN: slab-use-after-free Read in filp_flush
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: KASAN: slab-use-after-free Read in filp_flush
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-mkdirat-mkdirat-mkdirat-symlinkat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff)
mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff)
symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc)

program crashed: VFS: Close: file count is zero (use-after-free)
validation run: crashed=true
reproducing took 2h26m12.226024264s
repro crashed as (corrupted=false):
 slab filp start ffff888033275800 pointer offset 0 size 408
VFS: Close: file count is 0 (f_op=snd_ctl_f_ops)
------------[ cut here ]------------
kernel BUG at fs/open.c:1466!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5880 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:filp_flush+0x18d/0x190 fs/open.c:1464
Code: 88 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 73 d3 f2 ff 48 8b 33 48 c7 c7 80 c8 7d 8b e8 d4 f4 ea fe 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90003a676b8 EFLAGS: 00010246
RAX: 0000000000000030 RBX: ffff888033275888 RCX: b521ca7f9c659c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003a677d8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170e4903 R12: dffffc0000000000
R13: ffff888011c72520 R14: 0000000000000000 R15: 0000000000000003
FS:  000055557f931500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37c2530000 CR3: 0000000046dec000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filp_close+0x1d/0x40 fs/open.c:1484
 gaudio_close_snd_dev drivers/usb/gadget/function/u_uac1_legacy.c:263 [inline]
 gaudio_cleanup+0x54/0xf0 drivers/usb/gadget/function/u_uac1_legacy.c:305
 f_audio_bind+0x4a0/0x630 drivers/usb/gadget/function/f_uac1_legacy.c:792
 usb_add_function+0x290/0x930 drivers/usb/gadget/composite.c:333
 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __driver_attach+0x339/0x600 drivers/base/dd.c:1292
 bus_for_each_dev+0x23e/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x348/0x670 drivers/base/bus.c:763
 driver_register+0x23a/0x320 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x33a/0x430 fs/configfs/file.c:229
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61e/0xbb0 fs/read_write.c:687
 ksys_write+0x156/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f37c265e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd87364a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f37c28e5fa0 RCX: 00007f37c265e0d9
RDX: 000000000000000c RSI: 0000200000000400 RDI: 0000000000000003
RBP: 00007f37c26f5024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f37c28e5fac R14: 00007f37c28e5fa0 R15: 00007f37c28e5fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filp_flush+0x18d/0x190 fs/open.c:1464
Code: 88 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 73 d3 f2 ff 48 8b 33 48 c7 c7 80 c8 7d 8b e8 d4 f4 ea fe 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90003a676b8 EFLAGS: 00010246
RAX: 0000000000000030 RBX: ffff888033275888 RCX: b521ca7f9c659c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003a677d8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170e4903 R12: dffffc0000000000
R13: ffff888011c72520 R14: 0000000000000000 R15: 0000000000000003
FS:  000055557f931500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37c2530000 CR3: 0000000046dec000 CR4: 00000000003526f0

final repro crashed as (corrupted=false):
 slab filp start ffff888033275800 pointer offset 0 size 408
VFS: Close: file count is 0 (f_op=snd_ctl_f_ops)
------------[ cut here ]------------
kernel BUG at fs/open.c:1466!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 1 UID: 0 PID: 5880 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:filp_flush+0x18d/0x190 fs/open.c:1464
Code: 88 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 73 d3 f2 ff 48 8b 33 48 c7 c7 80 c8 7d 8b e8 d4 f4 ea fe 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90003a676b8 EFLAGS: 00010246
RAX: 0000000000000030 RBX: ffff888033275888 RCX: b521ca7f9c659c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003a677d8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170e4903 R12: dffffc0000000000
R13: ffff888011c72520 R14: 0000000000000000 R15: 0000000000000003
FS:  000055557f931500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37c2530000 CR3: 0000000046dec000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filp_close+0x1d/0x40 fs/open.c:1484
 gaudio_close_snd_dev drivers/usb/gadget/function/u_uac1_legacy.c:263 [inline]
 gaudio_cleanup+0x54/0xf0 drivers/usb/gadget/function/u_uac1_legacy.c:305
 f_audio_bind+0x4a0/0x630 drivers/usb/gadget/function/f_uac1_legacy.c:792
 usb_add_function+0x290/0x930 drivers/usb/gadget/composite.c:333
 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802
 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __driver_attach+0x339/0x600 drivers/base/dd.c:1292
 bus_for_each_dev+0x23e/0x2c0 drivers/base/bus.c:383
 bus_add_driver+0x348/0x670 drivers/base/bus.c:763
 driver_register+0x23a/0x320 drivers/base/driver.c:174
 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752
 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x33a/0x430 fs/configfs/file.c:229
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x61e/0xbb0 fs/read_write.c:687
 ksys_write+0x156/0x270 fs/read_write.c:739
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f37c265e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd87364a38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f37c28e5fa0 RCX: 00007f37c265e0d9
RDX: 000000000000000c RSI: 0000200000000400 RDI: 0000000000000003
RBP: 00007f37c26f5024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f37c28e5fac R14: 00007f37c28e5fa0 R15: 00007f37c28e5fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filp_flush+0x18d/0x190 fs/open.c:1464
Code: 88 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 73 d3 f2 ff 48 8b 33 48 c7 c7 80 c8 7d 8b e8 d4 f4 ea fe 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e
RSP: 0018:ffffc90003a676b8 EFLAGS: 00010246
RAX: 0000000000000030 RBX: ffff888033275888 RCX: b521ca7f9c659c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90003a677d8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed10170e4903 R12: dffffc0000000000
R13: ffff888011c72520 R14: 0000000000000000 R15: 0000000000000003
FS:  000055557f931500(0000) GS:ffff888125d46000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37c2530000 CR3: 0000000046dec000 CR4: 00000000003526f0