Extracting prog: 6m3.916760233s
Minimizing prog: 2h19m26.011062602s
Simplifying prog options: 0s
Extracting C: 1m16.997399368s
Simplifying C: 21m51.571523564s


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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-syz_clone-exit-tkill-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
r2 = syz_clone(0x27000911, 0x0, 0x0, 0x0, 0x0, 0x0)
exit(0x100000000000035)
tkill(r2, 0x6)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

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: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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-syz_clone-exit-tkill-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
r2 = syz_clone(0x27000911, 0x0, 0x0, 0x0, 0x0, 0x0)
exit(0x100000000000035)
tkill(r2, 0x6)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
single: successfully extracted reproducer
found reproducer with 15 syscalls
minimizing guilty program
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-syz_clone-exit-tkill
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
r2 = syz_clone(0x27000911, 0x0, 0x0, 0x0, 0x0, 0x0)
exit(0x100000000000035)
tkill(r2, 0x6)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-syz_clone-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
syz_clone(0x27000911, 0x0, 0x0, 0x0, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-syz_clone-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
syz_clone(0x27000911, 0x0, 0x0, 0x0, 0x0, 0x0)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-openat$snapshot-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-socket-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-setsockopt$ALG_SET_KEY-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-fchmodat-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
fchmodat(0xffffffffffffff9c, &(0x7f0000000300)='.\x00', 0xffffffd3)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
r0 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000100)='+p', 0x2)
r0 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r0, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, 0x0, 0x0)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100), 0x0)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
testing program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, 0x0, 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C 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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-syz_usb_connect-syz_usb_control_io$cdc_ncm-setsockopt$ALG_SET_KEY-socket-openat$snapshot-syz_usb_control_io$hid-exit-syz_open_dev$char_usb
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000080)='./debug\x00', &(0x7f00000000c0)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./debug/dynamic_debug/control\x00', 0x2, 0x0)
write(r0, &(0x7f0000000100)='+p', 0x2)
r1 = syz_usb_connect(0x0, 0x371, &(0x7f0000000280)=ANY=[@ANYBLOB="1201000057ec0020c215dcff30bd0102030109025f03019b000000090400000b403b4e000905e2379c"], 0x0)
syz_usb_control_io$cdc_ncm(r1, 0x0, 0x0)
setsockopt$ALG_SET_KEY(0xffffffffffffffff, 0x117, 0x1, 0x0, 0x0)
socket(0x10, 0x3, 0x0)
openat$snapshot(0xffffffffffffff9c, &(0x7f0000000180), 0x0, 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
exit(0x100000000000035)
syz_open_dev$char_usb(0xc, 0xb4, 0x80000000)

program crashed: KASAN: slab-use-after-free Read in __dynamic_dev_dbg
validation run: crashed=true
reproducing took 3h2m30.467876604s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in dev_name include/linux/device.h:934 [inline]
BUG: KASAN: slab-use-after-free in __dynamic_dev_dbg+0x2fc/0x310 lib/dynamic_debug.c:904
Read of size 8 at addr ffff88802e04e0c8 by task syz.3.255/7384

CPU: 2 UID: 0 PID: 7384 Comm: syz.3.255 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 dev_name include/linux/device.h:934 [inline]
 __dynamic_dev_dbg+0x2fc/0x310 lib/dynamic_debug.c:904
 display_close+0x103/0x150 drivers/media/rc/imon.c:580
 __fput+0x3ff/0xb50 fs/file_table.c:512
 task_work_run+0x150/0x240 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x8da/0x2a50 kernel/exit.c:986
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1129
 get_signal+0x1ec7/0x21e0 kernel/signal.c:3112
 arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x139/0x700 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x661/0x790 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f02de79e199
Code: Unable to access opcode bytes at 0x7f02de79e16f.
RSP: 002b:00007f02df6150e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f02dea25fa8 RCX: 00007f02de79e199
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f02dea25fa8
RBP: 00007f02dea25fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f02dea26038 R14: 00007ffd05b2ed30 R15: 00007ffd05b2ee18
 </TASK>

Allocated by task 3381:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 usb_set_configuration+0x10d0/0x1dc0 drivers/usb/core/message.c:2102
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3776
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2713
 usb_new_device include/linux/workqueue.h:715 [inline]
 hub_port_connect drivers/usb/core/hub.c:5585 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 1481:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 usb_disable_device+0x44a/0x810 drivers/usb/core/message.c:1491
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802e04e000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 200 bytes inside of
 freed 2048-byte region [ffff88802e04e000, ffff88802e04e800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802e04f000 pfn:0x2e048
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88801c042f00 ffffea00011f9a10 ffffea0001200010
raw: ffff88802e04f000 0000000000080005 00000000f5000000 0000000000000000
head: 00fff00000000240 ffff88801c042f00 ffffea00011f9a10 ffffea0001200010
head: ffff88802e04f000 0000000000080005 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 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 5915, tgid 5915 (syz-executor), ts 297276868926
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __kmalloc_cache_noprof+0x4f4/0x6d0 mm/slub.c:5559
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 rtnl_newlink+0x139/0x2620 net/core/rtnetlink.c:4118
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7137
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2575
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 __sys_sendto+0x48b/0x4e0 net/socket.c:2281
 __do_sys_sendto net/socket.c:2288 [inline]
 __se_sys_sendto net/socket.c:2284 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2284
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5911 tgid 5911 ts 297264385416 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_lru_noprof+0x265/0x6a0 mm/slub.c:5029
 sock_alloc_inode+0x26/0x2c0 net/socket.c:330
 alloc_inode+0x68/0x250 fs/inode.c:338
 new_inode_pseudo include/linux/fs.h:3044 [inline]
 sock_alloc+0x44/0x280 net/socket.c:710
 __sock_create+0xc2/0x860 net/socket.c:1640
 sock_create net/socket.c:1734 [inline]
 __sys_socket_create net/socket.c:1771 [inline]
 __sys_socket+0x14d/0x260 net/socket.c:1818
 __do_sys_socket net/socket.c:1832 [inline]
 __se_sys_socket net/socket.c:1830 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1830
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802e04df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802e04e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802e04e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                              ^
 ffff88802e04e100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802e04e180: 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 dev_name include/linux/device.h:934 [inline]
BUG: KASAN: slab-use-after-free in __dynamic_dev_dbg+0x2fc/0x310 lib/dynamic_debug.c:904
Read of size 8 at addr ffff88802e04e0c8 by task syz.3.255/7384

CPU: 2 UID: 0 PID: 7384 Comm: syz.3.255 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0x13d/0x4b0 mm/kasan/report.c:482
 kasan_report+0xdf/0x1c0 mm/kasan/report.c:595
 dev_name include/linux/device.h:934 [inline]
 __dynamic_dev_dbg+0x2fc/0x310 lib/dynamic_debug.c:904
 display_close+0x103/0x150 drivers/media/rc/imon.c:580
 __fput+0x3ff/0xb50 fs/file_table.c:512
 task_work_run+0x150/0x240 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x8da/0x2a50 kernel/exit.c:986
 do_group_exit+0xd5/0x2a0 kernel/exit.c:1129
 get_signal+0x1ec7/0x21e0 kernel/signal.c:3112
 arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x139/0x700 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x661/0x790 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f02de79e199
Code: Unable to access opcode bytes at 0x7f02de79e16f.
RSP: 002b:00007f02df6150e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f02dea25fa8 RCX: 00007f02de79e199
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f02dea25fa8
RBP: 00007f02dea25fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f02dea26038 R14: 00007ffd05b2ed30 R15: 00007ffd05b2ee18
 </TASK>

Allocated by task 3381:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x2f8/0x6d0 mm/slub.c:5563
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 usb_set_configuration+0x10d0/0x1dc0 drivers/usb/core/message.c:2102
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x210/0x460 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3776
 usb_new_device.part.0+0xcc2/0x1686 drivers/usb/core/hub.c:2713
 usb_new_device include/linux/workqueue.h:715 [inline]
 hub_port_connect drivers/usb/core/hub.c:5585 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event.cold+0x1e3/0xe90 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 1481:
 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
 kasan_save_track+0x14/0x30 mm/kasan/common.c:78
 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:264 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:296
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6509 [inline]
 kfree+0x22b/0x6d0 mm/slub.c:6802
 device_release+0xd2/0x270 drivers/base/core.c:2640
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1f7/0x640 lib/kobject.c:737
 put_device+0x1f/0x30 drivers/base/core.c:3884
 usb_disable_device+0x44a/0x810 drivers/usb/core/message.c:1491
 usb_disconnect+0x2e2/0x9a0 drivers/usb/core/hub.c:2355
 hub_port_connect drivers/usb/core/hub.c:5425 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5725 [inline]
 port_event drivers/usb/core/hub.c:5889 [inline]
 hub_event+0x1bb1/0x4420 drivers/usb/core/hub.c:5971
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802e04e000
 which belongs to the cache kmalloc-2k of size 2048
The buggy address is located 200 bytes inside of
 freed 2048-byte region [ffff88802e04e000, ffff88802e04e800)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802e04f000 pfn:0x2e048
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88801c042f00 ffffea00011f9a10 ffffea0001200010
raw: ffff88802e04f000 0000000000080005 00000000f5000000 0000000000000000
head: 00fff00000000240 ffff88801c042f00 ffffea00011f9a10 ffffea0001200010
head: ffff88802e04f000 0000000000080005 00000000f5000000 0000000000000000
head: 00fff00000000003 fffffffffffffe01 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 5915, tgid 5915 (syz-executor), ts 297276868926
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x110d/0x35d0 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2eb/0x3300 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab mm/slub.c:3462 [inline]
 new_slab+0xa9/0x6e0 mm/slub.c:3513
 refill_objects+0xe3/0x410 mm/slub.c:7418
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x35e/0x650 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __kmalloc_cache_noprof+0x4f4/0x6d0 mm/slub.c:5559
 _kmalloc_noprof include/linux/slab.h:991 [inline]
 rtnl_newlink+0x139/0x2620 net/core/rtnetlink.c:4118
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:7137
 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2575
 netlink_unicast_kernel net/netlink/af_netlink.c:1338 [inline]
 netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1364
 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:800 [inline]
 __sock_sendmsg net/socket.c:815 [inline]
 __sys_sendto+0x48b/0x4e0 net/socket.c:2281
 __do_sys_sendto net/socket.c:2288 [inline]
 __se_sys_sendto net/socket.c:2284 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2284
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5911 tgid 5911 ts 297264385416 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x79f/0x10f0 mm/page_alloc.c:2962
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:361
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4683 [inline]
 slab_alloc_node mm/slub.c:4996 [inline]
 kmem_cache_alloc_lru_noprof+0x265/0x6a0 mm/slub.c:5029
 sock_alloc_inode+0x26/0x2c0 net/socket.c:330
 alloc_inode+0x68/0x250 fs/inode.c:338
 new_inode_pseudo include/linux/fs.h:3044 [inline]
 sock_alloc+0x44/0x280 net/socket.c:710
 __sock_create+0xc2/0x860 net/socket.c:1640
 sock_create net/socket.c:1734 [inline]
 __sys_socket_create net/socket.c:1771 [inline]
 __sys_socket+0x14d/0x260 net/socket.c:1818
 __do_sys_socket net/socket.c:1832 [inline]
 __se_sys_socket net/socket.c:1830 [inline]
 __x64_sys_socket+0x72/0xb0 net/socket.c:1830
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff88802e04df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802e04e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802e04e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                              ^
 ffff88802e04e100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802e04e180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================