Extracting prog: 3m32.311503217s
Minimizing prog: 1h32m40.612611847s
Simplifying prog options: 12m17.322185945s
Extracting C: 5m15.189500377s
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:6 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 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:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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 crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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$char_usb(0xc, 0xb4, 0x0)
syz_usb_connect(0x0, 0x24, 0x0, 0x0) (rerun: 64)
ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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$char_usb(0xc, 0xb4, 0x0)
syz_usb_connect(0x0, 0x24, &(0x7f0000000040)=ANY=[@ANYBLOB], 0x0) (rerun: 64)
ioctl$FS_IOC_GETVERSION(r1, 0xc0145b0e, &(0x7f0000000040)) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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)) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program crashed: KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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, 0x0) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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)) (rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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)) (async)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 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)) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
testing program (duration=6m0s, {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
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)) (async, rerun: 64)
close_range(r1, 0xffffffffffffffff, 0x0)

program did not crash
reproducing took 1h53m45.435830258s
repro crashed as (corrupted=false):
usbtmc 6-1:16.0: usbtmc_read_bulk_cb - nonzero read bulk status received: -71
==================================================================
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 ffff8880327a1910 by task syz.4.613/7950

CPU: 1 UID: 0 PID: 7950 Comm: syz.4.613 Not tainted 6.16.0-rc2-syzkaller-00231-g75f5f23f8787 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xd2/0x2b0 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+0x2b0/0x2c0 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:1995
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842
 handle_softirqs+0x286/0x870 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:1050 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1050
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f3345d8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3346bd7038 EFLAGS: 00000246
RAX: fffffffffffffff7 RBX: 00007f3345fb5fa0 RCX: 00007f3345d8e929
RDX: 0000200000000040 RSI: 00000000c0145b0e RDI: 0000000000000004
RBP: 00007f3345e10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3345fb5fa0 R15: 00007fff80522798
 </TASK>

Allocated by task 7950:
 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:4359
 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+0x156/0x1e0 drivers/usb/core/file.c:47
 chrdev_open+0x4cc/0x5e0 fs/char_dev.c:414
 do_dentry_open+0xdf3/0x1970 fs/open.c:964
 vfs_open+0x3b/0x340 fs/open.c:1094
 do_open fs/namei.c:3896 [inline]
 path_openat+0x2ee5/0x3830 fs/namei.c:4055
 do_filp_open+0x1fa/0x410 fs/namei.c:4082
 do_sys_openat2+0x121/0x1c0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1463
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 7950:
 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:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kfree+0x18e/0x440 mm/slub.c:4842
 usbtmc_release+0x246/0x280 drivers/usb/class/usbtmc.c:261
 __fput+0x44c/0xa70 fs/file_table.c:465
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880327a1800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
 freed 1024-byte region [ffff8880327a1800, ffff8880327a1c00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x327a0
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 ffff88801a441dc0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a441dc0 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000c9e801 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 5977, tgid 5977 (syz-executor), ts 355016840428, free_ts 55079550932
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab+0x8a/0x3b0 mm/slub.c:2619
 new_slab mm/slub.c:2673 [inline]
 ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859
 __slab_alloc mm/slub.c:3949 [inline]
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 __kmalloc_cache_noprof+0x296/0x3d0 mm/slub.c:4354
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 afs_alloc_call+0x79/0x550 fs/afs/rxrpc.c:163
 afs_charge_preallocation+0x226/0x4e0 fs/afs/rxrpc.c:747
 afs_open_socket+0x302/0x3a0 fs/afs/rxrpc.c:112
 afs_net_init+0x67d/0x880 fs/afs/main.c:116
 ops_init+0x35c/0x5c0 net/core/net_namespace.c:138
 setup_net+0x219/0x4b0 net/core/net_namespace.c:442
 copy_net_ns+0x31b/0x4d0 net/core/net_namespace.c:574
 create_new_namespaces+0x3f3/0x720 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:218
page last free pid 5520 tgid 5520 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706
 discard_slab mm/slub.c:2717 [inline]
 __put_partials+0x161/0x1c0 mm/slub.c:3186
 put_cpu_partial+0x17c/0x250 mm/slub.c:3261
 __slab_free+0x2f7/0x400 mm/slub.c:4513
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 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:4148 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4204
 getname_flags+0xb8/0x540 fs/namei.c:146
 getname include/linux/fs.h:2907 [inline]
 getname_maybe_null include/linux/fs.h:2914 [inline]
 vfs_fstatat+0x43/0x170 fs/stat.c:370
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat fs/stat.c:536 [inline]
 __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8880327a1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880327a1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880327a1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff8880327a1980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880327a1a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

final repro crashed as (corrupted=false):
usbtmc 6-1:16.0: usbtmc_read_bulk_cb - nonzero read bulk status received: -71
==================================================================
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 ffff8880327a1910 by task syz.4.613/7950

CPU: 1 UID: 0 PID: 7950 Comm: syz.4.613 Not tainted 6.16.0-rc2-syzkaller-00231-g75f5f23f8787 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:408 [inline]
 print_report+0xd2/0x2b0 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+0x2b0/0x2c0 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:1995
 __run_hrtimer kernel/time/hrtimer.c:1761 [inline]
 __hrtimer_run_queues+0x52c/0xc60 kernel/time/hrtimer.c:1825
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842
 handle_softirqs+0x286/0x870 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:1050 [inline]
 sysvec_apic_timer_interrupt+0x57/0xc0 arch/x86/kernel/apic/apic.c:1050
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0033:0x7f3345d8e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3346bd7038 EFLAGS: 00000246
RAX: fffffffffffffff7 RBX: 00007f3345fb5fa0 RCX: 00007f3345d8e929
RDX: 0000200000000040 RSI: 00000000c0145b0e RDI: 0000000000000004
RBP: 00007f3345e10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3345fb5fa0 R15: 00007fff80522798
 </TASK>

Allocated by task 7950:
 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:4359
 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+0x156/0x1e0 drivers/usb/core/file.c:47
 chrdev_open+0x4cc/0x5e0 fs/char_dev.c:414
 do_dentry_open+0xdf3/0x1970 fs/open.c:964
 vfs_open+0x3b/0x340 fs/open.c:1094
 do_open fs/namei.c:3896 [inline]
 path_openat+0x2ee5/0x3830 fs/namei.c:4055
 do_filp_open+0x1fa/0x410 fs/namei.c:4082
 do_sys_openat2+0x121/0x1c0 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1463
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 7950:
 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:2381 [inline]
 slab_free mm/slub.c:4643 [inline]
 kfree+0x18e/0x440 mm/slub.c:4842
 usbtmc_release+0x246/0x280 drivers/usb/class/usbtmc.c:261
 __fput+0x44c/0xa70 fs/file_table.c:465
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff8880327a1800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 272 bytes inside of
 freed 1024-byte region [ffff8880327a1800, ffff8880327a1c00)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x327a0
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 ffff88801a441dc0 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801a441dc0 0000000000000000 dead000000000001
head: 0000000000000000 0000000000100010 00000000f5000000 0000000000000000
head: 00fff00000000003 ffffea0000c9e801 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 5977, tgid 5977 (syz-executor), ts 355016840428, free_ts 55079550932
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704
 prep_new_page mm/page_alloc.c:1712 [inline]
 get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419
 alloc_slab_page mm/slub.c:2451 [inline]
 allocate_slab+0x8a/0x3b0 mm/slub.c:2619
 new_slab mm/slub.c:2673 [inline]
 ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859
 __slab_alloc mm/slub.c:3949 [inline]
 __slab_alloc_node mm/slub.c:4024 [inline]
 slab_alloc_node mm/slub.c:4185 [inline]
 __kmalloc_cache_noprof+0x296/0x3d0 mm/slub.c:4354
 kmalloc_noprof include/linux/slab.h:905 [inline]
 kzalloc_noprof include/linux/slab.h:1039 [inline]
 afs_alloc_call+0x79/0x550 fs/afs/rxrpc.c:163
 afs_charge_preallocation+0x226/0x4e0 fs/afs/rxrpc.c:747
 afs_open_socket+0x302/0x3a0 fs/afs/rxrpc.c:112
 afs_net_init+0x67d/0x880 fs/afs/main.c:116
 ops_init+0x35c/0x5c0 net/core/net_namespace.c:138
 setup_net+0x219/0x4b0 net/core/net_namespace.c:442
 copy_net_ns+0x31b/0x4d0 net/core/net_namespace.c:574
 create_new_namespaces+0x3f3/0x720 kernel/nsproxy.c:110
 unshare_nsproxy_namespaces+0x11c/0x170 kernel/nsproxy.c:218
page last free pid 5520 tgid 5520 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1248 [inline]
 __free_frozen_pages+0xc71/0xe70 mm/page_alloc.c:2706
 discard_slab mm/slub.c:2717 [inline]
 __put_partials+0x161/0x1c0 mm/slub.c:3186
 put_cpu_partial+0x17c/0x250 mm/slub.c:3261
 __slab_free+0x2f7/0x400 mm/slub.c:4513
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x97/0x140 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:4148 [inline]
 slab_alloc_node mm/slub.c:4197 [inline]
 kmem_cache_alloc_noprof+0x1c1/0x3c0 mm/slub.c:4204
 getname_flags+0xb8/0x540 fs/namei.c:146
 getname include/linux/fs.h:2907 [inline]
 getname_maybe_null include/linux/fs.h:2914 [inline]
 vfs_fstatat+0x43/0x170 fs/stat.c:370
 __do_sys_newfstatat fs/stat.c:542 [inline]
 __se_sys_newfstatat fs/stat.c:536 [inline]
 __x64_sys_newfstatat+0x116/0x190 fs/stat.c:536
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff8880327a1800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880327a1880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880327a1900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff8880327a1980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880327a1a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================