Extracting prog: 2m24.942289654s Minimizing prog: 24m13.263038426s Simplifying prog options: 0s Extracting C: 50.271013695s Simplifying C: 12m0.500780575s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(0xffffffffffffffff, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(0xffffffffffffffff, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) r0 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r0, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r0, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0) r0 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r0, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r0, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, 0x0, 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, 0x0) (async, rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (rerun: 64) close_range(r1, 0xffffffffffffffff, 0x0) program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups testing program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x3f, &(0x7f0000000080)=ANY=[@ANYBLOB="11010000733336088dee1adb23610000000109022d0001100000000904000003fe03010009cd8d1f00020000000905050200de7e001009058b1e200202ed5905def6"], 0x0) syz_usb_control_io(r0, 0x0, 0x0) r1 = syz_open_dev$char_usb(0xc, 0xb4, 0x0) (rerun: 64) syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB="12"], 0x0) (rerun: 64) ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) close_range(r1, 0xffffffffffffffff, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=55.087197826s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups simplifying C reproducer testing compiled C program (duration=55.087197826s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program did not crash testing compiled C program (duration=55.087197826s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program did not crash testing compiled C program (duration=55.087197826s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program did not crash testing compiled C program (duration=55.087197826s, {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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups testing compiled C program (duration=55.087197826s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups testing compiled C program (duration=55.087197826s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Read in usbtmc_read_bulk_cb a never seen crash title: KASAN: slab-use-after-free Read in usbtmc_read_bulk_cb, ignore testing compiled C program (duration=55.087197826s, {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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups testing compiled C program (duration=55.087197826s, {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:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_open_dev$char_usb-syz_usb_connect-ioctl$FS_IOC_GETVERSION-close_range program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups reproducing took 39m28.97713699s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: slab-use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline] BUG: KASAN: slab-use-after-free in usb_anchor_suspend_wakeups+0x28/0x50 drivers/usb/core/urb.c:927 Write of size 4 at addr ffff888034718110 by task syz-executor115/5831 CPU: 0 UID: 0 PID: 5831 Comm: syz-executor115 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xb4/0x290 mm/kasan/report.c:521 kasan_report+0x118/0x150 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x29a/0x2b0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline] usb_anchor_suspend_wakeups+0x28/0x50 drivers/usb/core/urb.c:927 __usb_hcd_giveback_urb+0x2c0/0x690 drivers/usb/core/hcd.c:1636 dummy_timer+0x862/0x4550 drivers/usb/gadget/udc/dummy_hcd.c:1994 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7f358bf84609 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f358bf39208 EFLAGS: 00000246 RAX: fffffffffffffff7 RBX: 0000000000000030 RCX: 00007f358bf84609 RDX: 0000200000000040 RSI: 00000000c0145b0e RDI: 0000000000000004 RBP: 0000200000000040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f358c00c3e8 R13: 00007f358c00c3e0 R14: 00007f358c00c3ec R15: 00007f358bfd9110 Allocated by task 5831: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4372 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] usbtmc_open+0x9c/0x8e0 drivers/usb/class/usbtmc.c:175 usb_open+0x153/0x1e0 drivers/usb/core/file.c:47 chrdev_open+0x4c9/0x5e0 fs/char_dev.c:414 do_dentry_open+0xdf0/0x1970 fs/open.c:956 vfs_open+0x3b/0x340 fs/open.c:1086 do_open fs/namei.c:3880 [inline] path_openat+0x2ee5/0x3830 fs/namei.c:4039 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5831: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kfree+0x193/0x440 mm/slub.c:4855 usbtmc_release+0x246/0x280 drivers/usb/class/usbtmc.c:261 __fput+0x449/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work+0x5e/0x80 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x9a/0x120 kernel/entry/common.c:218 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888034718000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 272 bytes inside of freed 1024-byte region [ffff888034718000, ffff888034718400) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88803471f800 pfn:0x34718 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801a041dc0 0000000000000000 0000000000000001 raw: ffff88803471f800 0000000000100006 00000000f5000000 0000000000000000 head: 00fff00000000040 ffff88801a041dc0 0000000000000000 0000000000000001 head: ffff88803471f800 0000000000100006 00000000f5000000 0000000000000000 head: 00fff00000000003 ffffea0000d1c601 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5491, tgid 5491 (dhcpcd), ts 53965153079, free_ts 53906291956 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1d8/0x230 mm/page_alloc.c:1718 prep_new_page mm/page_alloc.c:1726 [inline] get_page_from_freelist+0x21c7/0x22a0 mm/page_alloc.c:3688 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4970 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301 alloc_slab_page mm/slub.c:2468 [inline] allocate_slab+0x8a/0x3b0 mm/slub.c:2632 new_slab mm/slub.c:2686 [inline] ___slab_alloc+0xbfc/0x1480 mm/slub.c:3872 __slab_alloc mm/slub.c:3962 [inline] __slab_alloc_node mm/slub.c:4037 [inline] slab_alloc_node mm/slub.c:4198 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kvmalloc_node_noprof+0x411/0x5e0 mm/slub.c:5026 kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline] bpf_int_jit_compile+0x5ae/0x1450 arch/x86/net/bpf_jit_comp.c:3570 bpf_prog_select_runtime+0x49e/0x810 kernel/bpf/core.c:2494 bpf_migrate_filter net/core/filter.c:1315 [inline] bpf_prepare_filter+0x1124/0x12c0 net/core/filter.c:1363 bpf_prog_create_from_user+0x2c8/0x440 net/core/filter.c:1457 seccomp_prepare_filter kernel/seccomp.c:701 [inline] seccomp_prepare_user_filter kernel/seccomp.c:738 [inline] seccomp_set_mode_filter kernel/seccomp.c:1974 [inline] do_seccomp+0x7b1/0xd90 kernel/seccomp.c:2094 __do_sys_prctl kernel/sys.c:2555 [inline] __se_sys_prctl+0xb6a/0x1910 kernel/sys.c:2473 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5486 tgid 5486 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0xb05/0xcd0 mm/page_alloc.c:2725 discard_slab mm/slub.c:2730 [inline] __put_partials+0x161/0x1c0 mm/slub.c:3199 put_cpu_partial+0x17c/0x250 mm/slub.c:3274 __slab_free+0x2f7/0x400 mm/slub.c:4526 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4161 [inline] slab_alloc_node mm/slub.c:4210 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kmalloc_noprof+0x224/0x4f0 mm/slub.c:4353 kmalloc_noprof include/linux/slab.h:909 [inline] tomoyo_add_entry security/tomoyo/common.c:2132 [inline] tomoyo_supervisor+0xbd5/0x1480 security/tomoyo/common.c:2204 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x149/0x1e0 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x15cf/0x1aa0 security/tomoyo/domain.c:888 tomoyo_bprm_check_security+0x11c/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x89/0x270 security/security.c:1302 search_binary_handler fs/exec.c:1768 [inline] exec_binprm fs/exec.c:1810 [inline] bprm_execve+0x8ee/0x1440 fs/exec.c:1862 do_execveat_common+0x510/0x6a0 fs/exec.c:1968 do_execve fs/exec.c:2042 [inline] __do_sys_execve fs/exec.c:2118 [inline] __se_sys_execve fs/exec.c:2113 [inline] __x64_sys_execve+0x94/0xb0 fs/exec.c:2113 Memory state around the buggy address: ffff888034718000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888034718080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888034718100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888034718180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888034718200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: slab-use-after-free in instrument_atomic_read_write include/linux/instrumented.h:96 [inline] BUG: KASAN: slab-use-after-free in atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline] BUG: KASAN: slab-use-after-free in usb_anchor_suspend_wakeups+0x28/0x50 drivers/usb/core/urb.c:927 Write of size 4 at addr ffff888034718110 by task syz-executor115/5831 CPU: 0 UID: 0 PID: 5831 Comm: syz-executor115 Not tainted 6.15.0-rc4-syzkaller-00021-gca91b9500108 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xb4/0x290 mm/kasan/report.c:521 kasan_report+0x118/0x150 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x29a/0x2b0 mm/kasan/generic.c:189 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_inc include/linux/atomic/atomic-instrumented.h:435 [inline] usb_anchor_suspend_wakeups+0x28/0x50 drivers/usb/core/urb.c:927 __usb_hcd_giveback_urb+0x2c0/0x690 drivers/usb/core/hcd.c:1636 dummy_timer+0x862/0x4550 drivers/usb/gadget/udc/dummy_hcd.c:1994 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7f358bf84609 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f358bf39208 EFLAGS: 00000246 RAX: fffffffffffffff7 RBX: 0000000000000030 RCX: 00007f358bf84609 RDX: 0000200000000040 RSI: 00000000c0145b0e RDI: 0000000000000004 RBP: 0000200000000040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f358c00c3e8 R13: 00007f358c00c3e0 R14: 00007f358c00c3ec R15: 00007f358bfd9110 Allocated by task 5831: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4372 kmalloc_noprof include/linux/slab.h:905 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] usbtmc_open+0x9c/0x8e0 drivers/usb/class/usbtmc.c:175 usb_open+0x153/0x1e0 drivers/usb/core/file.c:47 chrdev_open+0x4c9/0x5e0 fs/char_dev.c:414 do_dentry_open+0xdf0/0x1970 fs/open.c:956 vfs_open+0x3b/0x340 fs/open.c:1086 do_open fs/namei.c:3880 [inline] path_openat+0x2ee5/0x3830 fs/namei.c:4039 do_filp_open+0x1fa/0x410 fs/namei.c:4066 do_sys_openat2+0x121/0x1c0 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1455 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5831: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2398 [inline] slab_free mm/slub.c:4656 [inline] kfree+0x193/0x440 mm/slub.c:4855 usbtmc_release+0x246/0x280 drivers/usb/class/usbtmc.c:261 __fput+0x449/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work+0x5e/0x80 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x9a/0x120 kernel/entry/common.c:218 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888034718000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 272 bytes inside of freed 1024-byte region [ffff888034718000, ffff888034718400) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88803471f800 pfn:0x34718 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801a041dc0 0000000000000000 0000000000000001 raw: ffff88803471f800 0000000000100006 00000000f5000000 0000000000000000 head: 00fff00000000040 ffff88801a041dc0 0000000000000000 0000000000000001 head: ffff88803471f800 0000000000100006 00000000f5000000 0000000000000000 head: 00fff00000000003 ffffea0000d1c601 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5491, tgid 5491 (dhcpcd), ts 53965153079, free_ts 53906291956 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1d8/0x230 mm/page_alloc.c:1718 prep_new_page mm/page_alloc.c:1726 [inline] get_page_from_freelist+0x21c7/0x22a0 mm/page_alloc.c:3688 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4970 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301 alloc_slab_page mm/slub.c:2468 [inline] allocate_slab+0x8a/0x3b0 mm/slub.c:2632 new_slab mm/slub.c:2686 [inline] ___slab_alloc+0xbfc/0x1480 mm/slub.c:3872 __slab_alloc mm/slub.c:3962 [inline] __slab_alloc_node mm/slub.c:4037 [inline] slab_alloc_node mm/slub.c:4198 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kvmalloc_node_noprof+0x411/0x5e0 mm/slub.c:5026 kvmalloc_array_node_noprof include/linux/slab.h:1065 [inline] bpf_int_jit_compile+0x5ae/0x1450 arch/x86/net/bpf_jit_comp.c:3570 bpf_prog_select_runtime+0x49e/0x810 kernel/bpf/core.c:2494 bpf_migrate_filter net/core/filter.c:1315 [inline] bpf_prepare_filter+0x1124/0x12c0 net/core/filter.c:1363 bpf_prog_create_from_user+0x2c8/0x440 net/core/filter.c:1457 seccomp_prepare_filter kernel/seccomp.c:701 [inline] seccomp_prepare_user_filter kernel/seccomp.c:738 [inline] seccomp_set_mode_filter kernel/seccomp.c:1974 [inline] do_seccomp+0x7b1/0xd90 kernel/seccomp.c:2094 __do_sys_prctl kernel/sys.c:2555 [inline] __se_sys_prctl+0xb6a/0x1910 kernel/sys.c:2473 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5486 tgid 5486 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1262 [inline] __free_frozen_pages+0xb05/0xcd0 mm/page_alloc.c:2725 discard_slab mm/slub.c:2730 [inline] __put_partials+0x161/0x1c0 mm/slub.c:3199 put_cpu_partial+0x17c/0x250 mm/slub.c:3274 __slab_free+0x2f7/0x400 mm/slub.c:4526 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4161 [inline] slab_alloc_node mm/slub.c:4210 [inline] __do_kmalloc_node mm/slub.c:4340 [inline] __kmalloc_noprof+0x224/0x4f0 mm/slub.c:4353 kmalloc_noprof include/linux/slab.h:909 [inline] tomoyo_add_entry security/tomoyo/common.c:2132 [inline] tomoyo_supervisor+0xbd5/0x1480 security/tomoyo/common.c:2204 tomoyo_audit_env_log security/tomoyo/environ.c:36 [inline] tomoyo_env_perm+0x149/0x1e0 security/tomoyo/environ.c:63 tomoyo_environ security/tomoyo/domain.c:672 [inline] tomoyo_find_next_domain+0x15cf/0x1aa0 security/tomoyo/domain.c:888 tomoyo_bprm_check_security+0x11c/0x180 security/tomoyo/tomoyo.c:102 security_bprm_check+0x89/0x270 security/security.c:1302 search_binary_handler fs/exec.c:1768 [inline] exec_binprm fs/exec.c:1810 [inline] bprm_execve+0x8ee/0x1440 fs/exec.c:1862 do_execveat_common+0x510/0x6a0 fs/exec.c:1968 do_execve fs/exec.c:2042 [inline] __do_sys_execve fs/exec.c:2118 [inline] __se_sys_execve fs/exec.c:2113 [inline] __x64_sys_execve+0x94/0xb0 fs/exec.c:2113 Memory state around the buggy address: ffff888034718000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888034718080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888034718100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888034718180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888034718200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================