Extracting prog: 1m12.963388406s Minimizing prog: 8m4.600712196s Simplifying prog options: 2m50.91216069s Extracting C: 25.452349564s 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:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: slab-use-after-free Read in usbhid_power single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0) syz_usb_control_io$hid(0xffffffffffffffff, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, 0x0, 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(0x0, 0x2, 0x8a00) program did not crash extracting C reproducer testing compiled C program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw program crashed: KASAN: slab-out-of-bounds Read in usbhid_power a never seen crash title: KASAN: slab-out-of-bounds Read in usbhid_power, ignore simplifying guilty program options testing program (duration=38.55536995s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: use-after-free Write in __run_timer_base a never seen crash title: KASAN: use-after-free Write in __run_timer_base, ignore testing program (duration=38.55536995s, {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}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program did not crash testing program (duration=38.55536995s, {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}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: slab-out-of-bounds Read in usbhid_power a never seen crash title: KASAN: slab-out-of-bounds Read in usbhid_power, ignore testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: slab-use-after-free Read in usbhid_power validation run: crashed=true testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: slab-use-after-free Read in usbhid_power validation run: crashed=true testing program (duration=38.55536995s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_open_dev$hidraw detailed listing: executing program 0: r0 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000040)=ANY=[@ANYBLOB="12010002000000406a053b030000000000010902220001010080320904000001030000000921110100012217000705810340"], 0x0) syz_usb_control_io$hid(r0, 0x0, 0x0) syz_usb_control_io$hid(r0, &(0x7f00000001c0)={0x24, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022170000000600ff0905a10185020941150026ff00750895098102c0"], 0x0}, 0x0) syz_open_dev$hidraw(&(0x7f0000000180), 0x2, 0x8a00) program crashed: KASAN: slab-use-after-free Read in usbhid_power validation run: crashed=true reproducing took 14m54.3206891s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in usbhid_power+0x7c/0xd0 drivers/hid/usbhid/hid-core.c:1284 Read of size 8 at addr ffff88812daf8008 by task syz.0.22/420 CPU: 1 UID: 0 PID: 420 Comm: syz.0.22 Not tainted syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 print_address_description+0x71/0x210 mm/kasan/report.c:377 print_report+0x4a/0x70 mm/kasan/report.c:481 kasan_report+0x162/0x1a0 mm/kasan/report.c:594 __asan_report_load8_noabort+0x18/0x20 mm/kasan/report_generic.c:381 usbhid_power+0x7c/0xd0 drivers/hid/usbhid/hid-core.c:1284 hid_hw_power include/linux/hid.h:1174 [inline] hidraw_open+0x254/0x960 drivers/hid/hidraw.c:302 chrdev_open+0x4e8/0x610 fs/char_dev.c:414 do_dentry_open+0x97f/0x1510 fs/open.c:954 vfs_open+0x86/0x240 fs/open.c:1086 do_open fs/namei.c:3782 [inline] path_openat+0x2c49/0x35a0 fs/namei.c:3941 do_filp_open+0x1f2/0x440 fs/namei.c:3968 do_sys_openat2+0x134/0x1d0 fs/open.c:1434 do_sys_open fs/open.c:1449 [inline] __do_sys_openat fs/open.c:1465 [inline] __se_sys_openat fs/open.c:1460 [inline] __x64_sys_openat+0x13a/0x170 fs/open.c:1460 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fa29ff5e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fa2a0e1db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa2a0e1e6c0 RCX: 00007fa29ff5e98e RDX: 0000000000008a00 RSI: 00007fa2a0e1dc00 RDI: ffffffffffffff9c RBP: 00007fa2a0e1dc00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007fa2a0226038 R14: 00007fa2a0225fa0 R15: 00007ffdb94d6f38 Allocated by task 334: kasan_save_stack mm/kasan/common.c:49 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:70 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565 unpoison_slab_object mm/kasan/common.c:321 [inline] __kasan_slab_alloc+0x73/0x90 mm/kasan/common.c:347 kasan_slab_alloc include/linux/kasan.h:251 [inline] slab_post_alloc_hook mm/slub.c:4202 [inline] slab_alloc_node mm/slub.c:4251 [inline] kmem_cache_alloc_node_noprof+0x1ca/0x420 mm/slub.c:4305 kmalloc_reserve+0xcf/0x4f0 net/core/skbuff.c:596 __alloc_skb+0x13f/0x360 net/core/skbuff.c:687 alloc_skb include/linux/skbuff.h:1363 [inline] netlink_alloc_large_skb+0xf7/0x1b0 net/netlink/af_netlink.c:1181 netlink_sendmsg+0x576/0xad0 net/netlink/af_netlink.c:1865 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0x99e/0xa00 net/socket.c:2583 ___sys_sendmsg+0x2a6/0x370 net/socket.c:2637 __sys_sendmsg net/socket.c:2669 [inline] __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x1be/0x2a0 net/socket.c:2672 x64_sys_call+0x2a4c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e Freed by task 334: kasan_save_stack mm/kasan/common.c:49 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:70 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:249 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2445 [inline] slab_free mm/slub.c:4714 [inline] kfree+0x158/0x440 mm/slub.c:4875 skb_kfree_head net/core/skbuff.c:1081 [inline] skb_free_head+0xf7/0x300 net/core/skbuff.c:1098 skb_release_data+0x6d0/0x860 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb+0x62/0x210 net/core/skbuff.c:1204 consume_skb+0x65/0x1a0 net/core/skbuff.c:1436 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x8c7/0xa70 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x7d1/0xad0 net/netlink/af_netlink.c:1890 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0x99e/0xa00 net/socket.c:2583 ___sys_sendmsg+0x2a6/0x370 net/socket.c:2637 __sys_sendmsg net/socket.c:2669 [inline] __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x1be/0x2a0 net/socket.c:2672 x64_sys_call+0x2a4c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff88812daf8000 which belongs to the cache skbuff_small_head of size 768 The buggy address is located 8 bytes inside of freed 768-byte region [ffff88812daf8000, ffff88812daf8300) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12daf8 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x4000000000000040(head|zone=1) page_type: f5(slab) raw: 4000000000000040 ffff888106e48a00 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000120012 00000001f5000000 0000000000000000 head: 4000000000000040 ffff888106e48a00 dead000000000122 0000000000000000 head: 0000000000000000 0000000000120012 00000001f5000000 0000000000000000 head: 4000000000000002 ffffea0004b6be01 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 66, tgid 66 (kworker/1:2), ts 27766407898, free_ts 27765623694 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1863 prep_new_page+0x2d/0x180 mm/page_alloc.c:1871 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3948 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5315 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1 allocate_slab+0x69/0x430 mm/slub.c:2687 new_slab mm/slub.c:2741 [inline] ___slab_alloc+0x591/0x8c0 mm/slub.c:3934 __slab_alloc mm/slub.c:4025 [inline] __slab_alloc_node mm/slub.c:4078 [inline] slab_alloc_node mm/slub.c:4239 [inline] kmem_cache_alloc_node_noprof+0x29b/0x420 mm/slub.c:4305 kmalloc_reserve+0xcf/0x4f0 net/core/skbuff.c:596 __alloc_skb+0x13f/0x360 net/core/skbuff.c:687 alloc_skb include/linux/skbuff.h:1363 [inline] alloc_uevent_skb+0x85/0x240 lib/kobject_uevent.c:289 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline] kobject_uevent_net_broadcast+0x356/0x5e0 lib/kobject_uevent.c:410 kobject_uevent_env+0x551/0x7e0 lib/kobject_uevent.c:608 kobject_uevent+0x21/0x40 lib/kobject_uevent.c:656 __device_release_driver drivers/base/dd.c:1284 [inline] device_release_driver_internal+0x75b/0x830 drivers/base/dd.c:1295 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318 page last free pid 66 tgid 66 stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1390 [inline] free_unref_page+0xbb8/0xf70 mm/page_alloc.c:2876 __folio_put+0x272/0x2c0 mm/swap.c:115 folio_put include/linux/mm.h:1589 [inline] free_large_kmalloc+0xb7/0x110 mm/slub.c:4842 kfree+0x209/0x440 mm/slub.c:4869 usbhid_disconnect+0xab/0xc0 drivers/hid/usbhid/hid-core.c:1479 usb_unbind_interface+0x2b0/0xa40 drivers/usb/core/driver.c:462 device_remove drivers/base/dd.c:569 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x522/0x830 drivers/base/dd.c:1295 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576 device_del+0x583/0xcf0 drivers/base/core.c:3881 usb_disable_device+0x3af/0x770 drivers/usb/core/message.c:1476 usb_disconnect+0x331/0x950 drivers/usb/core/hub.c:2353 hub_port_connect drivers/usb/core/hub.c:5414 [inline] hub_port_connect_change drivers/usb/core/hub.c:5714 [inline] port_event drivers/usb/core/hub.c:5878 [inline] hub_event+0x1ad5/0x4360 drivers/usb/core/hub.c:5960 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c4/0x360 kernel/kthread.c:389 Memory state around the buggy address: ffff88812daf7f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88812daf7f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88812daf8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88812daf8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812daf8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Oops: general protection fault, probably for non-canonical address 0x1be014c0000037e: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 420 Comm: syz.0.22 Tainted: G B syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:arch_atomic_inc include/linux/instrumented.h:96 [inline] RIP: 0010:raw_atomic_inc include/linux/atomic/atomic-arch-fallback.h:992 [inline] RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:436 [inline] RIP: 0010:__pm_runtime_resume+0x49/0xa0 drivers/base/power/runtime.c:1177 Code: ff e8 3b dc 3f fe 89 d8 83 e0 04 75 07 e8 ef d7 3f fe eb 1e e8 e8 d7 3f fe 49 8d be e0 01 00 00 be 04 00 00 00 e8 47 b5 98 fe 41 ff 86 e0 01 00 00 4d 8d be 14 01 00 00 4c 89 ff e8 20 65 5f RSP: 0018:ffffc9000115f6a8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000004 RCX: ffffffff83479969 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 01be014c0000037e RBP: ffffc9000115f6c8 R08: 01be014c00000382 R09: 000000000000037c R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000002 R13: ffffffff8680cee0 R14: 01be014c0000019e R15: dffffc0000000000 FS: 00007fa2a0e1e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e2a79bff8 CR3: 0000000118e24000 CR4: 00000000003526b0 Call Trace: pm_runtime_resume_and_get include/linux/pm_runtime.h:436 [inline] usb_autopm_get_interface+0x25/0xf0 drivers/usb/core/driver.c:1888 usbhid_power+0x84/0xd0 drivers/hid/usbhid/hid-core.c:1284 hid_hw_power include/linux/hid.h:1174 [inline] hidraw_open+0x254/0x960 drivers/hid/hidraw.c:302 chrdev_open+0x4e8/0x610 fs/char_dev.c:414 do_dentry_open+0x97f/0x1510 fs/open.c:954 vfs_open+0x86/0x240 fs/open.c:1086 do_open fs/namei.c:3782 [inline] path_openat+0x2c49/0x35a0 fs/namei.c:3941 do_filp_open+0x1f2/0x440 fs/namei.c:3968 do_sys_openat2+0x134/0x1d0 fs/open.c:1434 do_sys_open fs/open.c:1449 [inline] __do_sys_openat fs/open.c:1465 [inline] __se_sys_openat fs/open.c:1460 [inline] __x64_sys_openat+0x13a/0x170 fs/open.c:1460 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fa29ff5e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fa2a0e1db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa2a0e1e6c0 RCX: 00007fa29ff5e98e RDX: 0000000000008a00 RSI: 00007fa2a0e1dc00 RDI: ffffffffffffff9c RBP: 00007fa2a0e1dc00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007fa2a0226038 R14: 00007fa2a0225fa0 R15: 00007ffdb94d6f38 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_inc include/linux/instrumented.h:96 [inline] RIP: 0010:raw_atomic_inc include/linux/atomic/atomic-arch-fallback.h:992 [inline] RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:436 [inline] RIP: 0010:__pm_runtime_resume+0x49/0xa0 drivers/base/power/runtime.c:1177 Code: ff e8 3b dc 3f fe 89 d8 83 e0 04 75 07 e8 ef d7 3f fe eb 1e e8 e8 d7 3f fe 49 8d be e0 01 00 00 be 04 00 00 00 e8 47 b5 98 fe 41 ff 86 e0 01 00 00 4d 8d be 14 01 00 00 4c 89 ff e8 20 65 5f RSP: 0018:ffffc9000115f6a8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000004 RCX: ffffffff83479969 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 01be014c0000037e RBP: ffffc9000115f6c8 R08: 01be014c00000382 R09: 000000000000037c R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000002 R13: ffffffff8680cee0 R14: 01be014c0000019e R15: dffffc0000000000 FS: 00007fa2a0e1e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e2a79bff8 CR3: 0000000118e24000 CR4: 00000000003526b0 ---------------- Code disassembly (best guess): 0: ff ljmp (bad) 1: e8 3b dc 3f fe call 0xfe3fdc41 6: 89 d8 mov %ebx,%eax 8: 83 e0 04 and $0x4,%eax b: 75 07 jne 0x14 d: e8 ef d7 3f fe call 0xfe3fd801 12: eb 1e jmp 0x32 14: e8 e8 d7 3f fe call 0xfe3fd801 19: 49 8d be e0 01 00 00 lea 0x1e0(%r14),%rdi 20: be 04 00 00 00 mov $0x4,%esi 25: e8 47 b5 98 fe call 0xfe98b571 * 2a: f0 41 ff 86 e0 01 00 lock incl 0x1e0(%r14) <-- trapping instruction 31: 00 32: 4d 8d be 14 01 00 00 lea 0x114(%r14),%r15 39: 4c 89 ff mov %r15,%rdi 3c: e8 .byte 0xe8 3d: 20 65 5f and %ah,0x5f(%rbp) final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in usbhid_power+0x7c/0xd0 drivers/hid/usbhid/hid-core.c:1284 Read of size 8 at addr ffff88812daf8008 by task syz.0.22/420 CPU: 1 UID: 0 PID: 420 Comm: syz.0.22 Not tainted syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 print_address_description+0x71/0x210 mm/kasan/report.c:377 print_report+0x4a/0x70 mm/kasan/report.c:481 kasan_report+0x162/0x1a0 mm/kasan/report.c:594 __asan_report_load8_noabort+0x18/0x20 mm/kasan/report_generic.c:381 usbhid_power+0x7c/0xd0 drivers/hid/usbhid/hid-core.c:1284 hid_hw_power include/linux/hid.h:1174 [inline] hidraw_open+0x254/0x960 drivers/hid/hidraw.c:302 chrdev_open+0x4e8/0x610 fs/char_dev.c:414 do_dentry_open+0x97f/0x1510 fs/open.c:954 vfs_open+0x86/0x240 fs/open.c:1086 do_open fs/namei.c:3782 [inline] path_openat+0x2c49/0x35a0 fs/namei.c:3941 do_filp_open+0x1f2/0x440 fs/namei.c:3968 do_sys_openat2+0x134/0x1d0 fs/open.c:1434 do_sys_open fs/open.c:1449 [inline] __do_sys_openat fs/open.c:1465 [inline] __se_sys_openat fs/open.c:1460 [inline] __x64_sys_openat+0x13a/0x170 fs/open.c:1460 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fa29ff5e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fa2a0e1db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa2a0e1e6c0 RCX: 00007fa29ff5e98e RDX: 0000000000008a00 RSI: 00007fa2a0e1dc00 RDI: ffffffffffffff9c RBP: 00007fa2a0e1dc00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007fa2a0226038 R14: 00007fa2a0225fa0 R15: 00007ffdb94d6f38 Allocated by task 334: kasan_save_stack mm/kasan/common.c:49 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:70 kasan_save_alloc_info+0x3a/0x50 mm/kasan/generic.c:565 unpoison_slab_object mm/kasan/common.c:321 [inline] __kasan_slab_alloc+0x73/0x90 mm/kasan/common.c:347 kasan_slab_alloc include/linux/kasan.h:251 [inline] slab_post_alloc_hook mm/slub.c:4202 [inline] slab_alloc_node mm/slub.c:4251 [inline] kmem_cache_alloc_node_noprof+0x1ca/0x420 mm/slub.c:4305 kmalloc_reserve+0xcf/0x4f0 net/core/skbuff.c:596 __alloc_skb+0x13f/0x360 net/core/skbuff.c:687 alloc_skb include/linux/skbuff.h:1363 [inline] netlink_alloc_large_skb+0xf7/0x1b0 net/netlink/af_netlink.c:1181 netlink_sendmsg+0x576/0xad0 net/netlink/af_netlink.c:1865 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0x99e/0xa00 net/socket.c:2583 ___sys_sendmsg+0x2a6/0x370 net/socket.c:2637 __sys_sendmsg net/socket.c:2669 [inline] __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x1be/0x2a0 net/socket.c:2672 x64_sys_call+0x2a4c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e Freed by task 334: kasan_save_stack mm/kasan/common.c:49 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:70 kasan_save_free_info+0x44/0x50 mm/kasan/generic.c:579 poison_slab_object mm/kasan/common.c:249 [inline] __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:266 kasan_slab_free include/linux/kasan.h:234 [inline] slab_free_hook mm/slub.c:2445 [inline] slab_free mm/slub.c:4714 [inline] kfree+0x158/0x440 mm/slub.c:4875 skb_kfree_head net/core/skbuff.c:1081 [inline] skb_free_head+0xf7/0x300 net/core/skbuff.c:1098 skb_release_data+0x6d0/0x860 net/core/skbuff.c:1125 skb_release_all net/core/skbuff.c:1190 [inline] __kfree_skb+0x62/0x210 net/core/skbuff.c:1204 consume_skb+0x65/0x1a0 net/core/skbuff.c:1436 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x8c7/0xa70 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x7d1/0xad0 net/netlink/af_netlink.c:1890 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0x99e/0xa00 net/socket.c:2583 ___sys_sendmsg+0x2a6/0x370 net/socket.c:2637 __sys_sendmsg net/socket.c:2669 [inline] __do_sys_sendmsg net/socket.c:2674 [inline] __se_sys_sendmsg net/socket.c:2672 [inline] __x64_sys_sendmsg+0x1be/0x2a0 net/socket.c:2672 x64_sys_call+0x2a4c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e The buggy address belongs to the object at ffff88812daf8000 which belongs to the cache skbuff_small_head of size 768 The buggy address is located 8 bytes inside of freed 768-byte region [ffff88812daf8000, ffff88812daf8300) The buggy address belongs to the physical page: page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12daf8 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x4000000000000040(head|zone=1) page_type: f5(slab) raw: 4000000000000040 ffff888106e48a00 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000120012 00000001f5000000 0000000000000000 head: 4000000000000040 ffff888106e48a00 dead000000000122 0000000000000000 head: 0000000000000000 0000000000120012 00000001f5000000 0000000000000000 head: 4000000000000002 ffffea0004b6be01 ffffffffffffffff 0000000000000000 head: 0000000000000004 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d2000(__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 66, tgid 66 (kworker/1:2), ts 27766407898, free_ts 27765623694 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook+0x37d/0x3b0 mm/page_alloc.c:1863 prep_new_page+0x2d/0x180 mm/page_alloc.c:1871 get_page_from_freelist+0x4aea/0x4ba0 mm/page_alloc.c:3948 __alloc_pages_noprof+0x35a/0x7e0 mm/page_alloc.c:5315 alloc_slab_page+0x6b/0x1e0 mm/slub.c:-1 allocate_slab+0x69/0x430 mm/slub.c:2687 new_slab mm/slub.c:2741 [inline] ___slab_alloc+0x591/0x8c0 mm/slub.c:3934 __slab_alloc mm/slub.c:4025 [inline] __slab_alloc_node mm/slub.c:4078 [inline] slab_alloc_node mm/slub.c:4239 [inline] kmem_cache_alloc_node_noprof+0x29b/0x420 mm/slub.c:4305 kmalloc_reserve+0xcf/0x4f0 net/core/skbuff.c:596 __alloc_skb+0x13f/0x360 net/core/skbuff.c:687 alloc_skb include/linux/skbuff.h:1363 [inline] alloc_uevent_skb+0x85/0x240 lib/kobject_uevent.c:289 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline] kobject_uevent_net_broadcast+0x356/0x5e0 lib/kobject_uevent.c:410 kobject_uevent_env+0x551/0x7e0 lib/kobject_uevent.c:608 kobject_uevent+0x21/0x40 lib/kobject_uevent.c:656 __device_release_driver drivers/base/dd.c:1284 [inline] device_release_driver_internal+0x75b/0x830 drivers/base/dd.c:1295 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318 page last free pid 66 tgid 66 stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1390 [inline] free_unref_page+0xbb8/0xf70 mm/page_alloc.c:2876 __folio_put+0x272/0x2c0 mm/swap.c:115 folio_put include/linux/mm.h:1589 [inline] free_large_kmalloc+0xb7/0x110 mm/slub.c:4842 kfree+0x209/0x440 mm/slub.c:4869 usbhid_disconnect+0xab/0xc0 drivers/hid/usbhid/hid-core.c:1479 usb_unbind_interface+0x2b0/0xa40 drivers/usb/core/driver.c:462 device_remove drivers/base/dd.c:569 [inline] __device_release_driver drivers/base/dd.c:1272 [inline] device_release_driver_internal+0x522/0x830 drivers/base/dd.c:1295 device_release_driver+0x1d/0x30 drivers/base/dd.c:1318 bus_remove_device+0x34f/0x370 drivers/base/bus.c:576 device_del+0x583/0xcf0 drivers/base/core.c:3881 usb_disable_device+0x3af/0x770 drivers/usb/core/message.c:1476 usb_disconnect+0x331/0x950 drivers/usb/core/hub.c:2353 hub_port_connect drivers/usb/core/hub.c:5414 [inline] hub_port_connect_change drivers/usb/core/hub.c:5714 [inline] port_event drivers/usb/core/hub.c:5878 [inline] hub_event+0x1ad5/0x4360 drivers/usb/core/hub.c:5960 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f4/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c4/0x360 kernel/kthread.c:389 Memory state around the buggy address: ffff88812daf7f00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88812daf7f80: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88812daf8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88812daf8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812daf8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Oops: general protection fault, probably for non-canonical address 0x1be014c0000037e: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 420 Comm: syz.0.22 Tainted: G B syzkaller #0 28bb5670a1b4a83370a1b0f1e6655e31af14d592 Tainted: [B]=BAD_PAGE Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:arch_atomic_inc include/linux/instrumented.h:96 [inline] RIP: 0010:raw_atomic_inc include/linux/atomic/atomic-arch-fallback.h:992 [inline] RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:436 [inline] RIP: 0010:__pm_runtime_resume+0x49/0xa0 drivers/base/power/runtime.c:1177 Code: ff e8 3b dc 3f fe 89 d8 83 e0 04 75 07 e8 ef d7 3f fe eb 1e e8 e8 d7 3f fe 49 8d be e0 01 00 00 be 04 00 00 00 e8 47 b5 98 fe 41 ff 86 e0 01 00 00 4d 8d be 14 01 00 00 4c 89 ff e8 20 65 5f RSP: 0018:ffffc9000115f6a8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000004 RCX: ffffffff83479969 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 01be014c0000037e RBP: ffffc9000115f6c8 R08: 01be014c00000382 R09: 000000000000037c R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000002 R13: ffffffff8680cee0 R14: 01be014c0000019e R15: dffffc0000000000 FS: 00007fa2a0e1e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e2a79bff8 CR3: 0000000118e24000 CR4: 00000000003526b0 Call Trace: pm_runtime_resume_and_get include/linux/pm_runtime.h:436 [inline] usb_autopm_get_interface+0x25/0xf0 drivers/usb/core/driver.c:1888 usbhid_power+0x84/0xd0 drivers/hid/usbhid/hid-core.c:1284 hid_hw_power include/linux/hid.h:1174 [inline] hidraw_open+0x254/0x960 drivers/hid/hidraw.c:302 chrdev_open+0x4e8/0x610 fs/char_dev.c:414 do_dentry_open+0x97f/0x1510 fs/open.c:954 vfs_open+0x86/0x240 fs/open.c:1086 do_open fs/namei.c:3782 [inline] path_openat+0x2c49/0x35a0 fs/namei.c:3941 do_filp_open+0x1f2/0x440 fs/namei.c:3968 do_sys_openat2+0x134/0x1d0 fs/open.c:1434 do_sys_open fs/open.c:1449 [inline] __do_sys_openat fs/open.c:1465 [inline] __se_sys_openat fs/open.c:1460 [inline] __x64_sys_openat+0x13a/0x170 fs/open.c:1460 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7fa29ff5e98e Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08 RSP: 002b:00007fa2a0e1db28 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa2a0e1e6c0 RCX: 00007fa29ff5e98e RDX: 0000000000008a00 RSI: 00007fa2a0e1dc00 RDI: ffffffffffffff9c RBP: 00007fa2a0e1dc00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: cccccccccccccccd R13: 00007fa2a0226038 R14: 00007fa2a0225fa0 R15: 00007ffdb94d6f38 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:arch_atomic_inc include/linux/instrumented.h:96 [inline] RIP: 0010:raw_atomic_inc include/linux/atomic/atomic-arch-fallback.h:992 [inline] RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:436 [inline] RIP: 0010:__pm_runtime_resume+0x49/0xa0 drivers/base/power/runtime.c:1177 Code: ff e8 3b dc 3f fe 89 d8 83 e0 04 75 07 e8 ef d7 3f fe eb 1e e8 e8 d7 3f fe 49 8d be e0 01 00 00 be 04 00 00 00 e8 47 b5 98 fe 41 ff 86 e0 01 00 00 4d 8d be 14 01 00 00 4c 89 ff e8 20 65 5f RSP: 0018:ffffc9000115f6a8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000004 RCX: ffffffff83479969 RDX: 0000000000000001 RSI: 0000000000000004 RDI: 01be014c0000037e RBP: ffffc9000115f6c8 R08: 01be014c00000382 R09: 000000000000037c R10: dffffc0000000000 R11: fffffbfff1177129 R12: 0000000000000002 R13: ffffffff8680cee0 R14: 01be014c0000019e R15: dffffc0000000000 FS: 00007fa2a0e1e6c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4e2a79bff8 CR3: 0000000118e24000 CR4: 00000000003526b0 ---------------- Code disassembly (best guess): 0: ff ljmp (bad) 1: e8 3b dc 3f fe call 0xfe3fdc41 6: 89 d8 mov %ebx,%eax 8: 83 e0 04 and $0x4,%eax b: 75 07 jne 0x14 d: e8 ef d7 3f fe call 0xfe3fd801 12: eb 1e jmp 0x32 14: e8 e8 d7 3f fe call 0xfe3fd801 19: 49 8d be e0 01 00 00 lea 0x1e0(%r14),%rdi 20: be 04 00 00 00 mov $0x4,%esi 25: e8 47 b5 98 fe call 0xfe98b571 * 2a: f0 41 ff 86 e0 01 00 lock incl 0x1e0(%r14) <-- trapping instruction 31: 00 32: 4d 8d be 14 01 00 00 lea 0x114(%r14),%r15 39: 4c 89 ff mov %r15,%rdi 3c: e8 .byte 0xe8 3d: 20 65 5f and %ah,0x5f(%rbp)