Extracting prog: 5m19.162984396s
Minimizing prog: 44m43.204857931s
Simplifying prog options: 6m41.805587118s
Extracting C: 2m25.078605638s
Simplifying C: 23m33.732899967s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)
syz_usb_control_io$cdc_ecm(0xffffffffffffffff, 0x0, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)
syz_usb_control_io$cdc_ecm(0xffffffffffffffff, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
single: successfully extracted reproducer
found reproducer with 6 syscalls
minimizing guilty program
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)
syz_usb_ep_read(0xffffffffffffffff, 0x1, 0x0, 0x0)
syz_usb_ep_write(0xffffffffffffffff, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, 0x0, 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0x0, 0x0)

program did not crash
testing program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0x0, &(0x7f0000000100))

program did not crash
extracting C reproducer
testing compiled C program (duration=3m51.037233296s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program did not crash
simplifying guilty program options
testing program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
extracting C reproducer
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
simplifying C reproducer
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program did not crash
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
validation run: crashed=true
testing program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
validation run: crashed=true
testing program (duration=3m51.037233296s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
validation run: crashed=true
reproducing took 1h31m32.540153631s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-use-after-free in string_nocheck lib/vsprintf.c:648 [inline]
BUG: KASAN: slab-use-after-free in string+0x216/0x2d0 lib/vsprintf.c:730
Read of size 1 at addr ffff8880794cd1b3 by task udevd/4983

CPU: 0 UID: 0 PID: 4983 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 string_nocheck lib/vsprintf.c:648 [inline]
 string+0x216/0x2d0 lib/vsprintf.c:730
 vsnprintf+0x74a/0xef0 lib/vsprintf.c:2949
 add_uevent_var+0x1ce/0x460 lib/kobject_uevent.c:682
 input_dev_uevent+0x119/0x6e0 drivers/input/input.c:1737
 dev_uevent+0x537/0x870 drivers/base/core.c:2783
 uevent_show+0x1a0/0x310 drivers/base/core.c:2830
 dev_attr_show+0x58/0xc0 drivers/base/core.c:2491
 sysfs_kf_seq_show+0x331/0x490 fs/sysfs/file.c:65
 seq_read_iter+0x463/0xca0 fs/seq_file.c:231
 new_sync_read fs/read_write.c:493 [inline]
 vfs_read+0x595/0xa80 fs/read_write.c:574
 ksys_read+0x150/0x270 fs/read_write.c:716
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feef2aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffcf1b41760 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007feef3195880 RCX: 00007feef2aa7407
RDX: 0000000000001000 RSI: 000055865cd87e20 RDI: 000000000000000c
RBP: 00007feef2befff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007feef2befea0 R14: 0000000000000000 R15: 000055865cd737a0
 </TASK>

Allocated by task 5903:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5414 [inline]
 __kmalloc_noprof+0x36b/0x720 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x7b/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x236/0x1af0 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5903:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6499 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6792
 device_release+0xc4/0x1f0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x222/0x550 lib/kobject.c:737
 snd_card_free_when_closed sound/core/init.c:630 [inline]
 snd_card_free+0x138/0x1d0 sound/core/init.c:662
 snd_probe+0x1626/0x1af0 sound/usb/caiaq/device.c:553
 usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 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 ffff8880794cc000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4531 bytes inside of
 freed 8192-byte region [ffff8880794cc000, ffff8880794ce000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x794c8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b042280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042280 dead000000000100 dead000000000122
head: 0000000000000000 0000000000020002 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 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5664, tgid 5664 (syz-executor), ts 92004904303
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab+0x7d/0x620 mm/slub.c:3462
 new_slab mm/slub.c:3513 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7410
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kvmalloc_node_noprof+0x63c/0x820 mm/slub.c:7005
 _kvmalloc_array_node_noprof include/linux/slab.h:1374 [inline]
 __ptr_ring_init_queue_alloc_noprof include/linux/ptr_ring.h:503 [inline]
 ptr_ring_init_noprof include/linux/ptr_ring.h:521 [inline]
 skb_array_init_noprof include/linux/skb_array.h:182 [inline]
 pfifo_fast_init+0x372/0x6c0 net/sched/sch_generic.c:917
 qdisc_create_dflt+0x13b/0x4e0 net/sched/sch_generic.c:1060
 attach_one_default_qdisc net/sched/sch_generic.c:1219 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2749 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1237 [inline]
 dev_activate+0x37a/0x1150 net/sched/sch_generic.c:1296
 __dev_open+0x699/0x850 net/core/dev.c:1733
 __dev_change_flags+0x329/0x820 net/core/dev.c:9812
 netif_change_flags+0x7c/0x1b0 net/core/dev.c:9877
 do_setlink+0xdd6/0x4670 net/core/rtnetlink.c:3266
 rtnl_changelink net/core/rtnetlink.c:3905 [inline]
 __rtnl_newlink net/core/rtnetlink.c:4076 [inline]
 rtnl_newlink+0x15a3/0x1c30 net/core/rtnetlink.c:4215
 rtnetlink_rcv_msg+0x802/0xc00 net/core/rtnetlink.c:7132
page last free pid 5467 tgid 5467 ts 67040958044 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __slab_free+0x274/0x2c0 mm/slub.c:5815
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 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_noprof+0x2b9/0x600 mm/slub.c:5010
 alloc_buffer_head+0x2a/0x280 fs/buffer.c:2872
 folio_alloc_buffers+0x1a4/0x630 fs/buffer.c:743
 create_empty_buffers+0x3a/0x520 fs/buffer.c:1576
 ext4_block_write_begin+0x610/0x1560 fs/ext4/inode.c:1193
 ext4_da_write_begin+0x879/0xd70 fs/ext4/inode.c:3167
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 ext4_buffered_write_iter+0xd4/0x380 fs/ext4/file.c:354
 ext4_file_write_iter+0xae4/0x1cd0 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739

Memory state around the buggy address:
 ffff8880794cd080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880794cd100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880794cd180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff8880794cd200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880794cd280: 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 string_nocheck lib/vsprintf.c:648 [inline]
BUG: KASAN: slab-use-after-free in string+0x216/0x2d0 lib/vsprintf.c:730
Read of size 1 at addr ffff8880794cd1b3 by task udevd/4983

CPU: 0 UID: 0 PID: 4983 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description+0x55/0x1e0 mm/kasan/report.c:378
 print_report+0x58/0x70 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 string_nocheck lib/vsprintf.c:648 [inline]
 string+0x216/0x2d0 lib/vsprintf.c:730
 vsnprintf+0x74a/0xef0 lib/vsprintf.c:2949
 add_uevent_var+0x1ce/0x460 lib/kobject_uevent.c:682
 input_dev_uevent+0x119/0x6e0 drivers/input/input.c:1737
 dev_uevent+0x537/0x870 drivers/base/core.c:2783
 uevent_show+0x1a0/0x310 drivers/base/core.c:2830
 dev_attr_show+0x58/0xc0 drivers/base/core.c:2491
 sysfs_kf_seq_show+0x331/0x490 fs/sysfs/file.c:65
 seq_read_iter+0x463/0xca0 fs/seq_file.c:231
 new_sync_read fs/read_write.c:493 [inline]
 vfs_read+0x595/0xa80 fs/read_write.c:574
 ksys_read+0x150/0x270 fs/read_write.c:716
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feef2aa7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffcf1b41760 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007feef3195880 RCX: 00007feef2aa7407
RDX: 0000000000001000 RSI: 000055865cd87e20 RDI: 000000000000000c
RBP: 00007feef2befff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007feef2befea0 R14: 0000000000000000 R15: 000055865cd737a0
 </TASK>

Allocated by task 5903:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5414 [inline]
 __kmalloc_noprof+0x36b/0x720 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x7b/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x236/0x1af0 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5903:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
 poison_slab_object mm/kasan/common.c:253 [inline]
 __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
 kasan_slab_free include/linux/kasan.h:235 [inline]
 slab_free_hook mm/slub.c:2748 [inline]
 slab_free mm/slub.c:6499 [inline]
 kfree+0x1c5/0x650 mm/slub.c:6792
 device_release+0xc4/0x1f0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x222/0x550 lib/kobject.c:737
 snd_card_free_when_closed sound/core/init.c:630 [inline]
 snd_card_free+0x138/0x1d0 sound/core/init.c:662
 snd_probe+0x1626/0x1af0 sound/usb/caiaq/device.c:553
 usb_probe_interface+0x788/0xe50 drivers/usb/core/driver.c:399
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_set_configuration+0x1ad8/0x2180 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250
 usb_probe_device+0x1c3/0x3b0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x254/0xae0 drivers/base/dd.c:706
 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898
 __device_attach_driver+0x270/0x410 drivers/base/dd.c:1026
 bus_for_each_drv+0x258/0x2f0 drivers/base/bus.c:500
 __device_attach+0x2c4/0x450 drivers/base/dd.c:1098
 device_initial_probe+0xa1/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x12a/0x220 drivers/base/bus.c:620
 device_add+0x7d7/0xb80 drivers/base/core.c:3776
 usb_new_device+0x9aa/0x1690 drivers/usb/core/hub.c:2708
 hub_port_connect drivers/usb/core/hub.c:5580 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5720 [inline]
 port_event drivers/usb/core/hub.c:5884 [inline]
 hub_event+0x28e8/0x4d30 drivers/usb/core/hub.c:5966
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 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 ffff8880794cc000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4531 bytes inside of
 freed 8192-byte region [ffff8880794cc000, ffff8880794ce000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x794c8
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88801b042280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 00fff00000000040 ffff88801b042280 dead000000000100 dead000000000122
head: 0000000000000000 0000000000020002 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 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5664, tgid 5664 (syz-executor), ts 92004904303
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1871
 prep_new_page mm/page_alloc.c:1879 [inline]
 get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
 alloc_slab_page mm/slub.c:3347 [inline]
 allocate_slab+0x7d/0x620 mm/slub.c:3462
 new_slab mm/slub.c:3513 [inline]
 refill_objects+0x2d5/0x350 mm/slub.c:7410
 refill_sheaf mm/slub.c:2885 [inline]
 __pcs_replace_empty_main+0x2c8/0x6c0 mm/slub.c:4774
 alloc_from_pcs mm/slub.c:4850 [inline]
 slab_alloc_node mm/slub.c:4984 [inline]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kvmalloc_node_noprof+0x63c/0x820 mm/slub.c:7005
 _kvmalloc_array_node_noprof include/linux/slab.h:1374 [inline]
 __ptr_ring_init_queue_alloc_noprof include/linux/ptr_ring.h:503 [inline]
 ptr_ring_init_noprof include/linux/ptr_ring.h:521 [inline]
 skb_array_init_noprof include/linux/skb_array.h:182 [inline]
 pfifo_fast_init+0x372/0x6c0 net/sched/sch_generic.c:917
 qdisc_create_dflt+0x13b/0x4e0 net/sched/sch_generic.c:1060
 attach_one_default_qdisc net/sched/sch_generic.c:1219 [inline]
 netdev_for_each_tx_queue include/linux/netdevice.h:2749 [inline]
 attach_default_qdiscs net/sched/sch_generic.c:1237 [inline]
 dev_activate+0x37a/0x1150 net/sched/sch_generic.c:1296
 __dev_open+0x699/0x850 net/core/dev.c:1733
 __dev_change_flags+0x329/0x820 net/core/dev.c:9812
 netif_change_flags+0x7c/0x1b0 net/core/dev.c:9877
 do_setlink+0xdd6/0x4670 net/core/rtnetlink.c:3266
 rtnl_changelink net/core/rtnetlink.c:3905 [inline]
 __rtnl_newlink net/core/rtnetlink.c:4076 [inline]
 rtnl_newlink+0x15a3/0x1c30 net/core/rtnetlink.c:4215
 rtnetlink_rcv_msg+0x802/0xc00 net/core/rtnetlink.c:7132
page last free pid 5467 tgid 5467 ts 67040958044 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
 __slab_free+0x274/0x2c0 mm/slub.c:5815
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 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_noprof+0x2b9/0x600 mm/slub.c:5010
 alloc_buffer_head+0x2a/0x280 fs/buffer.c:2872
 folio_alloc_buffers+0x1a4/0x630 fs/buffer.c:743
 create_empty_buffers+0x3a/0x520 fs/buffer.c:1576
 ext4_block_write_begin+0x610/0x1560 fs/ext4/inode.c:1193
 ext4_da_write_begin+0x879/0xd70 fs/ext4/inode.c:3167
 generic_perform_write+0x2d5/0x8f0 mm/filemap.c:4374
 ext4_buffered_write_iter+0xd4/0x380 fs/ext4/file.c:354
 ext4_file_write_iter+0xae4/0x1cd0 fs/ext4/file.c:-1
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x612/0xba0 fs/read_write.c:687
 ksys_write+0x150/0x270 fs/read_write.c:739

Memory state around the buggy address:
 ffff8880794cd080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880794cd100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880794cd180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                     ^
 ffff8880794cd200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880794cd280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================