Extracting prog: 3m51.594373205s Minimizing prog: 1h15m0.847597901s Simplifying prog options: 0s Extracting C: 1m16.856743937s Simplifying C: 9m47.949456713s 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 did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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=4m54.513887768s, {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 crashed: KASAN: use-after-free Read in roccat_disconnect testing program (duration=4m54.513887768s, {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 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=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: socket$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=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: socket$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 crashed: lost connection to test machine suppressed program crash: lost connection to test machine testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: socket$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=4m54.513887768s, {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 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=4m54.513887768s, {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 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=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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 crashed: KASAN: use-after-free Read in roccat_disconnect testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, 0x0, &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', 0x0, 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000000000407d1e5a2d00000000000109022400010000000009040000010301020009210000000122220009058103"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program did not crash testing program (duration=4m54.513887768s, {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$hid-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./dev_mnt\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./dev_mnt\x00', &(0x7f00000000c0)='devtmpfs\x00', 0x0, 0x0) r0 = syz_usb_connect$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, 0x0, 0x2, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=4m54.513887768s, {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$hid-openat program crashed: KASAN: use-after-free Read in roccat_disconnect simplifying C reproducer testing compiled C program (duration=4m54.513887768s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat 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 compiled C program (duration=4m54.513887768s, {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$hid-openat program did not crash testing compiled C program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat program crashed: KASAN: use-after-free Read in roccat_disconnect testing compiled C program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat program crashed: KASAN: use-after-free Read in roccat_disconnect testing compiled C program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat program crashed: KASAN: use-after-free Read in roccat_disconnect testing compiled C program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-openat program crashed: KASAN: use-after-free Read in roccat_disconnect testing program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program crashed: KASAN: use-after-free Read in roccat_disconnect validation run: crashed=true testing program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$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$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="002222000000962313"], 0x0}, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000100)='./dev_mnt/roccatsavu0\x00', 0x2, 0x0) program crashed: KASAN: use-after-free Read in roccat_disconnect validation run: crashed=true testing program (duration=4m54.513887768s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_usb_connect$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 crashed: KASAN: use-after-free Read in roccat_disconnect validation run: crashed=true reproducing took 1h36m38.555304558s 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 ffff888119351008 by task kworker/1:19/417 CPU: 1 PID: 417 Comm: kworker/1:19 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: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x100/0x140 mm/kasan/report.c:452 __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+0x272/0x3a0 drivers/hid/hid-core.c:-1 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x531/0x7c0 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535 device_del+0x62e/0xe60 drivers/base/core.c:3453 hid_remove_device drivers/hid/hid-core.c:2556 [inline] hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2575 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1463 usb_unbind_interface+0x212/0x8a0 drivers/usb/core/driver.c:459 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x531/0x7c0 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535 device_del+0x62e/0xe60 drivers/base/core.c:3453 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1470 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2315 hub_port_connect drivers/usb/core/hub.c:5343 [inline] hub_port_connect_change drivers/usb/core/hub.c:5644 [inline] port_event drivers/usb/core/hub.c:5810 [inline] hub_event+0x19c2/0x4220 drivers/usb/core/hub.c:5892 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 417: 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:430 [inline] ____kasan_kmalloc mm/kasan/common.c:509 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] kmem_cache_alloc_trace+0x179/0x2e0 mm/slub.c:2979 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:667 [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:2356 really_probe+0x373/0xa60 drivers/base/dd.c:558 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 hid_add_device+0x349/0x4b0 drivers/hid/hid-core.c:2508 usbhid_probe+0xb93/0xf30 drivers/hid/usbhid/hid-core.c:1436 usb_probe_interface+0x60f/0xb20 drivers/usb/core/driver.c:397 really_probe+0x3bf/0xa60 drivers/base/dd.c:562 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 usb_set_configuration+0x1a76/0x1fe0 drivers/usb/core/message.c:2219 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x143/0x250 drivers/usb/core/driver.c:294 really_probe+0x3bf/0xa60 drivers/base/dd.c:562 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 usb_new_device+0x9ba/0x1460 drivers/usb/core/hub.c:2659 hub_port_connect drivers/usb/core/hub.c:5504 [inline] hub_port_connect_change drivers/usb/core/hub.c:5644 [inline] port_event drivers/usb/core/hub.c:5810 [inline] hub_event+0x2790/0x4220 drivers/usb/core/hub.c:5892 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Freed by task 741: 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:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1600 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626 slab_free mm/slub.c:3208 [inline] kfree+0xc0/0x270 mm/slub.c:4196 roccat_free_device+0x27b/0x280 drivers/hid/hid-roccat.c:79 roccat_release+0x2ae/0x370 drivers/hid/hid-roccat.c:238 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:175 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:202 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:277 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff888119351000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888119351000, ffff888119351200) The buggy address belongs to the page: page:ffffea000464d400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x119350 head:ffffea000464d400 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 ffffea0004621600 0000000600000006 ffff888100043080 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 426, ts 207237510905, free_ts 206816832393 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x176/0x190 mm/page_alloc.c:2462 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1813 [inline] new_slab+0x84/0x3f0 mm/slub.c:1874 new_slab_objects mm/slub.c:2632 [inline] ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796 __slab_alloc+0x63/0xa0 mm/slub.c:2836 slab_alloc_node mm/slub.c:2918 [inline] slab_alloc mm/slub.c:2960 [inline] __kmalloc_track_caller+0x1e4/0x310 mm/slub.c:4541 __kmalloc_reserve net/core/skbuff.c:144 [inline] __alloc_skb+0xdc/0x520 net/core/skbuff.c:212 alloc_skb include/linux/skbuff.h:1126 [inline] alloc_skb_with_frags+0xa3/0x560 net/core/skbuff.c:6048 sock_alloc_send_pskb+0x87f/0x9a0 net/core/sock.c:2392 unix_dgram_sendmsg+0x6f3/0x18f0 net/unix/af_unix.c:1725 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] sock_write_iter+0x2a6/0x3a0 net/socket.c:1019 call_write_iter include/linux/fs.h:2072 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x770/0xd70 fs/read_write.c:605 ksys_write+0x14a/0x260 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:667 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629 free_the_page mm/page_alloc.c:5445 [inline] __free_pages+0xd8/0x390 mm/page_alloc.c:5454 __free_slab+0xcf/0x190 mm/slub.c:1899 free_slab mm/slub.c:1914 [inline] discard_slab mm/slub.c:1920 [inline] unfreeze_partials+0x150/0x180 mm/slub.c:2415 put_cpu_partial+0xc1/0x180 mm/slub.c:2451 __slab_free+0x2c9/0x3a0 mm/slub.c:3100 do_slab_free mm/slub.c:3196 [inline] ___cache_free+0x10e/0x130 mm/slub.c:3215 qlink_free+0x50/0x90 mm/kasan/quarantine.c:157 qlist_free_all+0x5f/0xb0 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x14a/0x160 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:440 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:580 slab_alloc_node mm/slub.c:2952 [inline] slab_alloc mm/slub.c:2960 [inline] kmem_cache_alloc_trace+0x155/0x2e0 mm/slub.c:2977 kmalloc include/linux/slab.h:555 [inline] usb_control_msg+0x74/0x3f0 drivers/usb/core/message.c:156 hid_get_class_descriptor drivers/hid/usbhid/hid-core.c:672 [inline] usbhid_parse+0x6dc/0xd10 drivers/hid/usbhid/hid-core.c:1053 hid_add_device+0x114/0x4b0 drivers/hid/hid-core.c:2484 Memory state around the buggy address: ffff888119350f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888119350f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888119351000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888119351080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888119351100: 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 23 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.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 23 usb 6-1: new high-speed USB device number 24 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.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 24 usb 6-1: new high-speed USB device number 25 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.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: hidraw2: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 25 usb 6-1: new high-speed USB device number 26 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.007F: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007F: unknown main item tag 0x0 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 ffff888119351008 by task kworker/1:19/417 CPU: 1 PID: 417 Comm: kworker/1:19 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: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x100/0x140 mm/kasan/report.c:452 __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+0x272/0x3a0 drivers/hid/hid-core.c:-1 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x531/0x7c0 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535 device_del+0x62e/0xe60 drivers/base/core.c:3453 hid_remove_device drivers/hid/hid-core.c:2556 [inline] hid_destroy_device+0x6a/0x110 drivers/hid/hid-core.c:2575 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1463 usb_unbind_interface+0x212/0x8a0 drivers/usb/core/driver.c:459 __device_release_driver drivers/base/dd.c:-1 [inline] device_release_driver_internal+0x531/0x7c0 drivers/base/dd.c:1221 device_release_driver+0x19/0x20 drivers/base/dd.c:1244 bus_remove_device+0x2df/0x340 drivers/base/bus.c:535 device_del+0x62e/0xe60 drivers/base/core.c:3453 usb_disable_device+0x3a8/0x750 drivers/usb/core/message.c:1470 usb_disconnect+0x32d/0x870 drivers/usb/core/hub.c:2315 hub_port_connect drivers/usb/core/hub.c:5343 [inline] hub_port_connect_change drivers/usb/core/hub.c:5644 [inline] port_event drivers/usb/core/hub.c:5810 [inline] hub_event+0x19c2/0x4220 drivers/usb/core/hub.c:5892 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Allocated by task 417: 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:430 [inline] ____kasan_kmalloc mm/kasan/common.c:509 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] kmem_cache_alloc_trace+0x179/0x2e0 mm/slub.c:2979 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:667 [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:2356 really_probe+0x373/0xa60 drivers/base/dd.c:558 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 hid_add_device+0x349/0x4b0 drivers/hid/hid-core.c:2508 usbhid_probe+0xb93/0xf30 drivers/hid/usbhid/hid-core.c:1436 usb_probe_interface+0x60f/0xb20 drivers/usb/core/driver.c:397 really_probe+0x3bf/0xa60 drivers/base/dd.c:562 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 usb_set_configuration+0x1a76/0x1fe0 drivers/usb/core/message.c:2219 usb_generic_driver_probe+0x91/0x150 drivers/usb/core/generic.c:238 usb_probe_device+0x143/0x250 drivers/usb/core/driver.c:294 really_probe+0x3bf/0xa60 drivers/base/dd.c:562 driver_probe_device+0xe1/0x190 drivers/base/dd.c:752 __device_attach_driver+0x282/0x3f0 drivers/base/dd.c:863 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:433 __device_attach+0x2a8/0x410 drivers/base/dd.c:932 device_initial_probe+0x1a/0x20 drivers/base/dd.c:981 bus_probe_device+0xc0/0x1e0 drivers/base/bus.c:493 device_add+0x8ce/0xc00 drivers/base/core.c:3273 usb_new_device+0x9ba/0x1460 drivers/usb/core/hub.c:2659 hub_port_connect drivers/usb/core/hub.c:5504 [inline] hub_port_connect_change drivers/usb/core/hub.c:5644 [inline] port_event drivers/usb/core/hub.c:5810 [inline] hub_event+0x2790/0x4220 drivers/usb/core/hub.c:5892 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 process_scheduled_works kernel/workqueue.c:2363 [inline] worker_thread+0xd1c/0x13c0 kernel/workqueue.c:2449 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Freed by task 741: 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:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1600 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626 slab_free mm/slub.c:3208 [inline] kfree+0xc0/0x270 mm/slub.c:4196 roccat_free_device+0x27b/0x280 drivers/hid/hid-roccat.c:79 roccat_release+0x2ae/0x370 drivers/hid/hid-roccat.c:238 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:175 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:202 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:277 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff888119351000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 8 bytes inside of 512-byte region [ffff888119351000, ffff888119351200) The buggy address belongs to the page: page:ffffea000464d400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x119350 head:ffffea000464d400 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 ffffea0004621600 0000000600000006 ffff888100043080 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 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 426, ts 207237510905, free_ts 206816832393 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x176/0x190 mm/page_alloc.c:2462 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1813 [inline] new_slab+0x84/0x3f0 mm/slub.c:1874 new_slab_objects mm/slub.c:2632 [inline] ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796 __slab_alloc+0x63/0xa0 mm/slub.c:2836 slab_alloc_node mm/slub.c:2918 [inline] slab_alloc mm/slub.c:2960 [inline] __kmalloc_track_caller+0x1e4/0x310 mm/slub.c:4541 __kmalloc_reserve net/core/skbuff.c:144 [inline] __alloc_skb+0xdc/0x520 net/core/skbuff.c:212 alloc_skb include/linux/skbuff.h:1126 [inline] alloc_skb_with_frags+0xa3/0x560 net/core/skbuff.c:6048 sock_alloc_send_pskb+0x87f/0x9a0 net/core/sock.c:2392 unix_dgram_sendmsg+0x6f3/0x18f0 net/unix/af_unix.c:1725 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] sock_write_iter+0x2a6/0x3a0 net/socket.c:1019 call_write_iter include/linux/fs.h:2072 [inline] new_sync_write fs/read_write.c:518 [inline] vfs_write+0x770/0xd70 fs/read_write.c:605 ksys_write+0x14a/0x260 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write fs/read_write.c:667 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:667 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629 free_the_page mm/page_alloc.c:5445 [inline] __free_pages+0xd8/0x390 mm/page_alloc.c:5454 __free_slab+0xcf/0x190 mm/slub.c:1899 free_slab mm/slub.c:1914 [inline] discard_slab mm/slub.c:1920 [inline] unfreeze_partials+0x150/0x180 mm/slub.c:2415 put_cpu_partial+0xc1/0x180 mm/slub.c:2451 __slab_free+0x2c9/0x3a0 mm/slub.c:3100 do_slab_free mm/slub.c:3196 [inline] ___cache_free+0x10e/0x130 mm/slub.c:3215 qlink_free+0x50/0x90 mm/kasan/quarantine.c:157 qlist_free_all+0x5f/0xb0 mm/kasan/quarantine.c:176 kasan_quarantine_reduce+0x14a/0x160 mm/kasan/quarantine.c:283 __kasan_slab_alloc+0x2f/0xe0 mm/kasan/common.c:440 kasan_slab_alloc include/linux/kasan.h:244 [inline] slab_post_alloc_hook+0x5d/0x2f0 mm/slab.h:580 slab_alloc_node mm/slub.c:2952 [inline] slab_alloc mm/slub.c:2960 [inline] kmem_cache_alloc_trace+0x155/0x2e0 mm/slub.c:2977 kmalloc include/linux/slab.h:555 [inline] usb_control_msg+0x74/0x3f0 drivers/usb/core/message.c:156 hid_get_class_descriptor drivers/hid/usbhid/hid-core.c:672 [inline] usbhid_parse+0x6dc/0xd10 drivers/hid/usbhid/hid-core.c:1053 hid_add_device+0x114/0x4b0 drivers/hid/hid-core.c:2484 Memory state around the buggy address: ffff888119350f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888119350f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff888119351000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888119351080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888119351100: 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 23 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.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0070: hidraw1: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 23 usb 6-1: new high-speed USB device number 24 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.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: unknown main item tag 0x0 savu 0003:1E7D:2D5A.0075: hidraw0: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 24 usb 6-1: new high-speed USB device number 25 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.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007A: hidraw2: USB HID v0.00 Device [HID 1e7d:2d5a] on usb-dummy_hcd.5-1/input0 usb 6-1: USB disconnect, device number 25 usb 6-1: new high-speed USB device number 26 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.007F: unknown main item tag 0x0 savu 0003:1E7D:2D5A.007F: unknown main item tag 0x0