Extracting prog: 2m16.538334516s
Minimizing prog: 25m52.170894786s
Simplifying prog options: 0s
Extracting C: 43.192076667s
Simplifying C: 12m11.72336969s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', 0x0, 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, 0x0, 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program did not crash
testing program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m24.881247854s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
simplifying C reproducer
testing compiled C program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
testing compiled C program (duration=1m24.881247854s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program did not crash
testing compiled C program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
testing compiled C program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
testing compiled C program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
testing compiled C program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
program did not crash
testing program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
validation run: crashed=true
testing program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
validation run: crashed=true
testing program (duration=1m24.881247854s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): socket$unix-mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)

program crashed: KASAN: slab-use-after-free Read in roccat_disconnect
validation run: crashed=true
reproducing took 43m16.098865785s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
Read of size 4 at addr ffff888124b08408 by task kworker/1:1/45

CPU: 1 UID: 0 PID: 45 Comm: kworker/1:1 Not tainted syzkaller #0 f6ed0fb9bb938319f6518c785cf37c2d863a58c7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load4_noabort+0x18/0x20 mm/kasan/report_generic.c:380
 roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
 savu_remove_specials drivers/hid/hid-roccat-savu.c:110 [inline]
 savu_remove+0xf0/0x170 drivers/hid/hid-roccat-savu.c:150
 hid_device_remove+0x293/0x400 drivers/hid/hid-core.c:-1
 device_remove drivers/base/dd.c:567 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4aa/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 hid_remove_device drivers/hid/hid-core.c:3000 [inline]
 hid_destroy_device+0x6e/0x110 drivers/hid/hid-core.c:3020
 usbhid_disconnect+0xa3/0xc0 drivers/hid/usbhid/hid-core.c:1478
 usb_unbind_interface+0x2ad/0xa40 drivers/usb/core/driver.c:462
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x522/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 usb_disable_device+0x3af/0x770 drivers/usb/core/message.c:1476
 usb_disconnect+0x331/0x950 drivers/usb/core/hub.c:2353
 hub_port_connect drivers/usb/core/hub.c:5414 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x1ad5/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 45:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 roccat_connect+0x6a/0x540 drivers/hid/hid-roccat.c:306
 savu_init_specials drivers/hid/hid-roccat-savu.c:84 [inline]
 savu_probe+0x1a7/0x3f0 drivers/hid/hid-roccat-savu.c:134
 __hid_device_probe drivers/hid/hid-core.c:2760 [inline]
 hid_device_probe+0x2ce/0x5f0 drivers/hid/hid-core.c:2797
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 hid_add_device+0x3c4/0x5a0 drivers/hid/hid-core.c:2943
 usbhid_probe+0xdca/0x1310 drivers/hid/usbhid/hid-core.c:1451
 usb_probe_interface+0x6ab/0xbf0 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1aad/0x2080 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1f2/0x3b0 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x98d/0x1500 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x2dbd/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 504:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 roccat_release+0x2c3/0x390 drivers/hid/hid-roccat.c:229
 __fput+0x20b/0xa30 fs/file_table.c:447
 ____fput+0x20/0x30 fs/file_table.c:475
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff888124b08400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 freed 512-byte region [ffff888124b08400, ffff888124b08600)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x124b08
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4000000000000040(head|zone=1)
page_type: f5(slab)
raw: 4000000000000040 ffff888100041c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000040 ffff888100041c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000002 ffffea000492c201 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 360, tgid 360 (syz-executor), ts 37887623872, free_ts 37227818848
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __do_kmalloc_node mm/slub.c:4394 [inline]
 __kmalloc_node_noprof+0x2e7/0x500 mm/slub.c:4401
 kmalloc_node_noprof include/linux/slab.h:1008 [inline]
 qdisc_alloc+0x90/0x8e0 net/sched/sch_generic.c:955
 qdisc_create_dflt+0x6f/0x3c0 net/sched/sch_generic.c:1017
 attach_one_default_qdisc net/sched/sch_generic.c:1183 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2538 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1201 [inline]
 dev_activate+0x306/0x1160 net/sched/sch_generic.c:1260
 __dev_open+0x41c/0x540 net/core/dev.c:1563
 __dev_change_flags+0x1f9/0x6c0 net/core/dev.c:8967
 dev_change_flags+0x84/0x1b0 net/core/dev.c:9039
 do_setlink+0xb7b/0x41e0 net/core/rtnetlink.c:2936
 __rtnl_newlink net/core/rtnetlink.c:3732 [inline]
 rtnl_newlink+0x1801/0x2220 net/core/rtnetlink.c:3779
page last free pid 326 tgid 326 stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page+0xb99/0xf50 mm/page_alloc.c:2877
 __free_pages+0x6b/0x3b0 mm/page_alloc.c:5403
 vfree+0x3ea/0x5b0 mm/vmalloc.c:3410
 kcov_put kernel/kcov.c:439 [inline]
 kcov_close+0x2c/0x70 kernel/kcov.c:535
 __fput+0x20b/0xa30 fs/file_table.c:447
 ____fput+0x20/0x30 fs/file_table.c:475
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa46/0x2850 kernel/exit.c:961
 do_group_exit+0x21f/0x2f0 kernel/exit.c:1104
 get_signal+0x134c/0x1490 kernel/signal.c:2941
 arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Memory state around the buggy address:
 ffff888124b08300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888124b08380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888124b08400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff888124b08480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888124b08500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 6-1: new high-speed USB device number 15 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 15
usb 6-1: new high-speed USB device number 16 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 16
usb 6-1: new high-speed USB device number 17 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 17
usb 6-1: new high-speed USB device number 18 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 18
usb 6-1: new high-speed USB device number 19 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 19

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
Read of size 4 at addr ffff888124b08408 by task kworker/1:1/45

CPU: 1 UID: 0 PID: 45 Comm: kworker/1:1 Not tainted syzkaller #0 f6ed0fb9bb938319f6518c785cf37c2d863a58c7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 print_address_description+0x71/0x210 mm/kasan/report.c:377
 print_report+0x4a/0x70 mm/kasan/report.c:481
 kasan_report+0x162/0x1a0 mm/kasan/report.c:594
 __asan_report_load4_noabort+0x18/0x20 mm/kasan/report_generic.c:380
 roccat_disconnect+0x236/0x240 drivers/hid/hid-roccat.c:373
 savu_remove_specials drivers/hid/hid-roccat-savu.c:110 [inline]
 savu_remove+0xf0/0x170 drivers/hid/hid-roccat-savu.c:150
 hid_device_remove+0x293/0x400 drivers/hid/hid-core.c:-1
 device_remove drivers/base/dd.c:567 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x4aa/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 hid_remove_device drivers/hid/hid-core.c:3000 [inline]
 hid_destroy_device+0x6e/0x110 drivers/hid/hid-core.c:3020
 usbhid_disconnect+0xa3/0xc0 drivers/hid/usbhid/hid-core.c:1478
 usb_unbind_interface+0x2ad/0xa40 drivers/usb/core/driver.c:462
 device_remove drivers/base/dd.c:569 [inline]
 __device_release_driver drivers/base/dd.c:1272 [inline]
 device_release_driver_internal+0x522/0x830 drivers/base/dd.c:1295
 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318
 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576
 device_del+0x583/0xcf0 drivers/base/core.c:3881
 usb_disable_device+0x3af/0x770 drivers/usb/core/message.c:1476
 usb_disconnect+0x331/0x950 drivers/usb/core/hub.c:2353
 hub_port_connect drivers/usb/core/hub.c:5414 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x1ad5/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Allocated by task 45:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565
 poison_kmalloc_redzone mm/kasan/common.c:379 [inline]
 __kasan_kmalloc+0x96/0xb0 mm/kasan/common.c:396
 kasan_kmalloc include/linux/kasan.h:261 [inline]
 __kmalloc_cache_noprof+0x23c/0x470 mm/slub.c:4426
 kmalloc_noprof include/linux/slab.h:882 [inline]
 kzalloc_noprof include/linux/slab.h:1117 [inline]
 roccat_connect+0x6a/0x540 drivers/hid/hid-roccat.c:306
 savu_init_specials drivers/hid/hid-roccat-savu.c:84 [inline]
 savu_probe+0x1a7/0x3f0 drivers/hid/hid-roccat-savu.c:134
 __hid_device_probe drivers/hid/hid-core.c:2760 [inline]
 hid_device_probe+0x2ce/0x5f0 drivers/hid/hid-core.c:2797
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 hid_add_device+0x3c4/0x5a0 drivers/hid/hid-core.c:2943
 usbhid_probe+0xdca/0x1310 drivers/hid/usbhid/hid-core.c:1451
 usb_probe_interface+0x6ab/0xbf0 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1aad/0x2080 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1f2/0x3b0 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2e4/0x8b0 drivers/base/dd.c:657
 __driver_probe_device+0x193/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c4/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x7fd/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x98d/0x1500 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x2dbd/0x4360 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3273 [inline]
 process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354
 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435
 kthread+0x2c4/0x360 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

Freed by task 504:
 kasan_save_stack mm/kasan/common.c:49 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:70
 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579
 poison_slab_object mm/kasan/common.c:249 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2445 [inline]
 slab_free mm/slub.c:4714 [inline]
 kfree+0x158/0x440 mm/slub.c:4875
 roccat_release+0x2c3/0x390 drivers/hid/hid-roccat.c:229
 __fput+0x20b/0xa30 fs/file_table.c:447
 ____fput+0x20/0x30 fs/file_table.c:475
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 resume_user_mode_work+0x35/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x63/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

The buggy address belongs to the object at ffff888124b08400
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 freed 512-byte region [ffff888124b08400, ffff888124b08600)

The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x124b08
head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4000000000000040(head|zone=1)
page_type: f5(slab)
raw: 4000000000000040 ffff888100041c80 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000040 ffff888100041c80 dead000000000100 dead000000000122
head: 0000000000000000 0000000000100010 00000001f5000000 0000000000000000
head: 4000000000000002 ffffea000492c201 ffffffffffffffff 0000000000000000
head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 360, tgid 360 (syz-executor), ts 37887623872, free_ts 37227818848
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1864
 prep_new_page+0x2d/0x180 mm/page_alloc.c:1872
 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3949
 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5316
 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1
 allocate_slab+0x69/0x430 mm/slub.c:2687
 new_slab mm/slub.c:2741 [inline]
 ___slab_alloc+0x591/0x8c0 mm/slub.c:3934
 __slab_alloc mm/slub.c:4025 [inline]
 __slab_alloc_node mm/slub.c:4078 [inline]
 slab_alloc_node mm/slub.c:4239 [inline]
 __do_kmalloc_node mm/slub.c:4394 [inline]
 __kmalloc_node_noprof+0x2e7/0x500 mm/slub.c:4401
 kmalloc_node_noprof include/linux/slab.h:1008 [inline]
 qdisc_alloc+0x90/0x8e0 net/sched/sch_generic.c:955
 qdisc_create_dflt+0x6f/0x3c0 net/sched/sch_generic.c:1017
 attach_one_default_qdisc net/sched/sch_generic.c:1183 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2538 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1201 [inline]
 dev_activate+0x306/0x1160 net/sched/sch_generic.c:1260
 __dev_open+0x41c/0x540 net/core/dev.c:1563
 __dev_change_flags+0x1f9/0x6c0 net/core/dev.c:8967
 dev_change_flags+0x84/0x1b0 net/core/dev.c:9039
 do_setlink+0xb7b/0x41e0 net/core/rtnetlink.c:2936
 __rtnl_newlink net/core/rtnetlink.c:3732 [inline]
 rtnl_newlink+0x1801/0x2220 net/core/rtnetlink.c:3779
page last free pid 326 tgid 326 stack trace:
 reset_page_owner include/linux/page_owner.h:28 [inline]
 free_pages_prepare mm/page_alloc.c:1391 [inline]
 free_unref_page+0xb99/0xf50 mm/page_alloc.c:2877
 __free_pages+0x6b/0x3b0 mm/page_alloc.c:5403
 vfree+0x3ea/0x5b0 mm/vmalloc.c:3410
 kcov_put kernel/kcov.c:439 [inline]
 kcov_close+0x2c/0x70 kernel/kcov.c:535
 __fput+0x20b/0xa30 fs/file_table.c:447
 ____fput+0x20/0x30 fs/file_table.c:475
 task_work_run+0x1e5/0x260 kernel/task_work.c:246
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa46/0x2850 kernel/exit.c:961
 do_group_exit+0x21f/0x2f0 kernel/exit.c:1104
 get_signal+0x134c/0x1490 kernel/signal.c:2941
 arch_do_signal_or_restart+0xbc/0x700 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x57/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x63/0xf0 arch/x86/entry/common.c:84
 entry_SYSCALL_64_after_hwframe+0x76/0x7e

Memory state around the buggy address:
 ffff888124b08300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888124b08380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888124b08400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff888124b08480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888124b08500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 6-1: new high-speed USB device number 15 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0036: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 15
usb 6-1: new high-speed USB device number 16 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003A: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 16
usb 6-1: new high-speed USB device number 17 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.003E: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 17
usb 6-1: new high-speed USB device number 18 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0042: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 18
usb 6-1: new high-speed USB device number 19 using dummy_hcd
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 6-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0046: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0
usb 6-1: USB disconnect, device number 19