Extracting prog: 1m1.679695324s
Minimizing prog: 11m15.369111245s
Simplifying prog options: 2m17.265379732s
Extracting C: 34.709093562s
Simplifying C: 0s


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: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: use-after-free Read in roccat_disconnect
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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 did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(0xffffffffffffffff, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$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$hid(r0, 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
socket$unix(0x1, 0x1, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r0, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
socket$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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
socket$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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program crashed: KASAN: use-after-free Read in roccat_disconnect
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
detailed listing:
executing program 0:
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(0x0, 0x36, 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$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
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, 0x0, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, 0x0, 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
program did not crash
simplifying guilty program options
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program crashed: KASAN: use-after-free Write in roccat_open
a never seen crash title: KASAN: use-after-free Write in roccat_open, ignore
testing program (duration=30s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true 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}}): 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:
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
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program crashed: KASAN: use-after-free Read in roccat_disconnect
validation run: crashed=true
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program crashed: KASAN: use-after-free Read in roccat_disconnect
validation run: crashed=true
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
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: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$hid-openat-ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY
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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0)
ioctl$FS_IOC_REMOVE_ENCRYPTION_KEY(r1, 0xc0406618, 0x0)

program did not crash
validation run: crashed=false
reproducing took 21m41.961957102s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in roccat_disconnect+0x22d/0x240 drivers/hid/hid-roccat.c:382
Read of size 4 at addr ffff88812b307008 by task kworker/0:1/20

CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x10f/0x150 mm/kasan/report.c:444
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 roccat_disconnect+0x22d/0x240 drivers/hid/hid-roccat.c:382
 savu_remove_specials drivers/hid/hid-roccat-savu.c:107 [inline]
 savu_remove+0xec/0x170 drivers/hid/hid-roccat-savu.c:147
 hid_device_remove+0xba/0x170 drivers/hid/hid-core.c:2392
 __device_release_driver drivers/base/dd.c:1227 [inline]
 device_release_driver_internal+0x4e8/0x7c0 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:531
 device_del+0x62e/0xe20 drivers/base/core.c:3610
 hid_remove_device drivers/hid/hid-core.c:2561 [inline]
 hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2580
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1469
 usb_unbind_interface+0x212/0x8a0 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x536/0x7c0 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:531
 device_del+0x62e/0xe20 drivers/base/core.c:3610
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1472
 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2293
 hub_port_connect drivers/usb/core/hub.c:5399 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5700 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x19b0/0x43f0 drivers/usb/core/hub.c:5948
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
 process_scheduled_works kernel/workqueue.c:2391 [inline]
 worker_thread+0xd4c/0x1250 kernel/workqueue.c:2477
 kthread+0x3f5/0x4f0 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Allocated by task 20:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc mm/kasan/common.c:512 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 kmem_cache_alloc_trace+0x119/0x270 mm/slub.c:3274
 kmalloc include/linux/slab.h:619 [inline]
 kzalloc include/linux/slab.h:750 [inline]
 roccat_connect+0x5c/0x4b0 drivers/hid/hid-roccat.c:315
 savu_init_specials drivers/hid/hid-roccat-savu.c:81 [inline]
 savu_probe+0x1ba/0x360 drivers/hid/hid-roccat-savu.c:131
 hid_device_probe+0x28d/0x390 drivers/hid/hid-core.c:2363
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 hid_add_device+0x349/0x4b0 drivers/hid/hid-core.c:2513
 usbhid_probe+0xb93/0xf30 drivers/hid/usbhid/hid-core.c:1442
 usb_probe_interface+0x60f/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_set_configuration+0x1a01/0x1f70 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x143/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_new_device+0xa1f/0x1720 drivers/usb/core/hub.c:2643
 hub_port_connect drivers/usb/core/hub.c:5560 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5700 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x291b/0x43f0 drivers/usb/core/hub.c:5948
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
 worker_thread+0xaa0/0x1250 kernel/workqueue.c:2475
 kthread+0x3f5/0x4f0 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Freed by task 406:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
 kasan_slab_free include/linux/kasan.h:193 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754
 slab_free mm/slub.c:3526 [inline]
 kfree+0xc4/0x270 mm/slub.c:4588
 roccat_free_device+0x27b/0x280 drivers/hid/hid-roccat.c:79
 roccat_release+0x2ae/0x370 drivers/hid/hid-roccat.c:238
 __fput+0x22b/0x900 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:184
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:310
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88812b307000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 512-byte region [ffff88812b307000, ffff88812b307200)
The buggy address belongs to the page:
page:ffffea0004acc100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12b304
head:ffffea0004acc100 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00
raw: 0000000000000000 0000000080100010 00000001ffffffff 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 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 63, ts 29267033075, free_ts 25956512241
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613
 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487
 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1937 [inline]
 new_slab+0xa0/0x4d0 mm/slub.c:2000
 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033
 __slab_alloc+0x49/0x90 mm/slub.c:3120
 slab_alloc_node mm/slub.c:3211 [inline]
 slab_alloc mm/slub.c:3255 [inline]
 __kmalloc+0x16a/0x2c0 mm/slub.c:4432
 kmalloc include/linux/slab.h:624 [inline]
 kzalloc include/linux/slab.h:750 [inline]
 neigh_alloc net/core/neighbour.c:438 [inline]
 ___neigh_create+0x6fb/0x1c50 net/core/neighbour.c:591
 __neigh_create+0x31/0x40 net/core/neighbour.c:679
 ip6_finish_output2+0xae3/0x1790 net/ipv6/ip6_output.c:129
 __ip6_finish_output+0x623/0x7e0 net/ipv6/ip6_output.c:203
 ip6_finish_output+0x31/0x220 net/ipv6/ip6_output.c:213
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1fa/0x410 net/ipv6/ip6_output.c:236
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7f8/0xd00 net/ipv6/ndisc.c:513
 ndisc_send_rs+0x711/0x960 net/ipv6/ndisc.c:707
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1474 [inline]
 free_pcp_prepare mm/page_alloc.c:1546 [inline]
 free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536
 free_unref_page+0xae/0x540 mm/page_alloc.c:3618
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x6c/0x100 mm/page_alloc.c:5900
 __vunmap+0x801/0x980 mm/vmalloc.c:2660
 __vfree mm/vmalloc.c:2709 [inline]
 vfree+0x8b/0xc0 mm/vmalloc.c:2740
 kcov_put kernel/kcov.c:422 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x22b/0x900 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xb70/0x29a0 kernel/exit.c:896
 do_group_exit+0x149/0x310 kernel/exit.c:1010
 get_signal+0x64f/0x1430 kernel/signal.c:2920
 arch_do_signal_or_restart+0xe2/0x1100 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:157 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:310

Memory state around the buggy address:
 ffff88812b306f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88812b306f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88812b307000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88812b307080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88812b307100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 7-1: new high-speed USB device number 3 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 3
usb 7-1: new high-speed USB device number 4 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 4
usb 7-1: new high-speed USB device number 5 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 5
usb 7-1: new high-speed USB device number 6 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 6

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in roccat_disconnect+0x22d/0x240 drivers/hid/hid-roccat.c:382
Read of size 4 at addr ffff88812b307008 by task kworker/0:1/20

CPU: 0 PID: 20 Comm: kworker/0:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x10f/0x150 mm/kasan/report.c:444
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report_generic.c:308
 roccat_disconnect+0x22d/0x240 drivers/hid/hid-roccat.c:382
 savu_remove_specials drivers/hid/hid-roccat-savu.c:107 [inline]
 savu_remove+0xec/0x170 drivers/hid/hid-roccat-savu.c:147
 hid_device_remove+0xba/0x170 drivers/hid/hid-core.c:2392
 __device_release_driver drivers/base/dd.c:1227 [inline]
 device_release_driver_internal+0x4e8/0x7c0 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:531
 device_del+0x62e/0xe20 drivers/base/core.c:3610
 hid_remove_device drivers/hid/hid-core.c:2561 [inline]
 hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2580
 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1469
 usb_unbind_interface+0x212/0x8a0 drivers/usb/core/driver.c:458
 __device_release_driver drivers/base/dd.c:1229 [inline]
 device_release_driver_internal+0x536/0x7c0 drivers/base/dd.c:1262
 device_release_driver+0x19/0x20 drivers/base/dd.c:1285
 bus_remove_device+0x2df/0x340 drivers/base/bus.c:531
 device_del+0x62e/0xe20 drivers/base/core.c:3610
 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1472
 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2293
 hub_port_connect drivers/usb/core/hub.c:5399 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5700 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x19b0/0x43f0 drivers/usb/core/hub.c:5948
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
 process_scheduled_works kernel/workqueue.c:2391 [inline]
 worker_thread+0xd4c/0x1250 kernel/workqueue.c:2477
 kthread+0x3f5/0x4f0 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Allocated by task 20:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc mm/kasan/common.c:512 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 kmem_cache_alloc_trace+0x119/0x270 mm/slub.c:3274
 kmalloc include/linux/slab.h:619 [inline]
 kzalloc include/linux/slab.h:750 [inline]
 roccat_connect+0x5c/0x4b0 drivers/hid/hid-roccat.c:315
 savu_init_specials drivers/hid/hid-roccat-savu.c:81 [inline]
 savu_probe+0x1ba/0x360 drivers/hid/hid-roccat-savu.c:131
 hid_device_probe+0x28d/0x390 drivers/hid/hid-core.c:2363
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 hid_add_device+0x349/0x4b0 drivers/hid/hid-core.c:2513
 usbhid_probe+0xb93/0xf30 drivers/hid/usbhid/hid-core.c:1442
 usb_probe_interface+0x60f/0xb20 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_set_configuration+0x1a01/0x1f70 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x143/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x27d/0x970 drivers/base/dd.c:595
 __driver_probe_device+0x193/0x270 drivers/base/dd.c:755
 driver_probe_device+0x54/0x3e0 drivers/base/dd.c:785
 __device_attach_driver+0x2a6/0x460 drivers/base/dd.c:907
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2b0/0x420 drivers/base/dd.c:979
 device_initial_probe+0x1a/0x20 drivers/base/dd.c:1028
 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:489
 device_add+0xaef/0xe90 drivers/base/core.c:3422
 usb_new_device+0xa1f/0x1720 drivers/usb/core/hub.c:2643
 hub_port_connect drivers/usb/core/hub.c:5560 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5700 [inline]
 port_event drivers/usb/core/hub.c:5866 [inline]
 hub_event+0x291b/0x43f0 drivers/usb/core/hub.c:5948
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
 worker_thread+0xaa0/0x1250 kernel/workqueue.c:2475
 kthread+0x3f5/0x4f0 kernel/kthread.c:337
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287

Freed by task 406:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4a/0x70 mm/kasan/common.c:45
 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370
 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365
 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373
 kasan_slab_free include/linux/kasan.h:193 [inline]
 slab_free_hook mm/slub.c:1728 [inline]
 slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754
 slab_free mm/slub.c:3526 [inline]
 kfree+0xc4/0x270 mm/slub.c:4588
 roccat_free_device+0x27b/0x280 drivers/hid/hid-roccat.c:79
 roccat_release+0x2ae/0x370 drivers/hid/hid-roccat.c:238
 __fput+0x22b/0x900 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:184
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:310
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88812b307000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 8 bytes inside of
 512-byte region [ffff88812b307000, ffff88812b307200)
The buggy address belongs to the page:
page:ffffea0004acc100 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12b304
head:ffffea0004acc100 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head|zone=1)
raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00
raw: 0000000000000000 0000000080100010 00000001ffffffff 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 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 63, ts 29267033075, free_ts 25956512241
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613
 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487
 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1937 [inline]
 new_slab+0xa0/0x4d0 mm/slub.c:2000
 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033
 __slab_alloc+0x49/0x90 mm/slub.c:3120
 slab_alloc_node mm/slub.c:3211 [inline]
 slab_alloc mm/slub.c:3255 [inline]
 __kmalloc+0x16a/0x2c0 mm/slub.c:4432
 kmalloc include/linux/slab.h:624 [inline]
 kzalloc include/linux/slab.h:750 [inline]
 neigh_alloc net/core/neighbour.c:438 [inline]
 ___neigh_create+0x6fb/0x1c50 net/core/neighbour.c:591
 __neigh_create+0x31/0x40 net/core/neighbour.c:679
 ip6_finish_output2+0xae3/0x1790 net/ipv6/ip6_output.c:129
 __ip6_finish_output+0x623/0x7e0 net/ipv6/ip6_output.c:203
 ip6_finish_output+0x31/0x220 net/ipv6/ip6_output.c:213
 NF_HOOK_COND include/linux/netfilter.h:294 [inline]
 ip6_output+0x1fa/0x410 net/ipv6/ip6_output.c:236
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:305 [inline]
 ndisc_send_skb+0x7f8/0xd00 net/ipv6/ndisc.c:513
 ndisc_send_rs+0x711/0x960 net/ipv6/ndisc.c:707
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1474 [inline]
 free_pcp_prepare mm/page_alloc.c:1546 [inline]
 free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536
 free_unref_page+0xae/0x540 mm/page_alloc.c:3618
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x6c/0x100 mm/page_alloc.c:5900
 __vunmap+0x801/0x980 mm/vmalloc.c:2660
 __vfree mm/vmalloc.c:2709 [inline]
 vfree+0x8b/0xc0 mm/vmalloc.c:2740
 kcov_put kernel/kcov.c:422 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:524
 __fput+0x22b/0x900 fs/file_table.c:311
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xb70/0x29a0 kernel/exit.c:896
 do_group_exit+0x149/0x310 kernel/exit.c:1010
 get_signal+0x64f/0x1430 kernel/signal.c:2920
 arch_do_signal_or_restart+0xe2/0x1100 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:157 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:217
 __syscall_exit_to_user_mode_work kernel/entry/common.c:299 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:310

Memory state around the buggy address:
 ffff88812b306f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88812b306f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88812b307000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                      ^
 ffff88812b307080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88812b307100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
usb 7-1: new high-speed USB device number 3 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0009: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 3
usb 7-1: new high-speed USB device number 4 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: unknown main item tag 0x0
savu 0003:1E7D:2D5A.000E: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 4
usb 7-1: new high-speed USB device number 5 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0013: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 5
usb 7-1: new high-speed USB device number 6 using dummy_hcd
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 7-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 7-1: New USB device found, idVendor=1e7d, idProduct=2d5a, bcdDevice= 0.00
usb 7-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 7-1: config 0 descriptor??
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: unknown main item tag 0x0
savu 0003:1E7D:2D5A.0018: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.6-1/input0
usb 7-1: USB disconnect, device number 6