Extracting prog: 23m27.034071306s
Minimizing prog: 1h35m50.179642101s
Simplifying prog options: 0s
Extracting C: 2m25.019182864s
Simplifying C: 18m25.5797934s


extracting reproducer from 37 programs
testing a last program of every proc
single: executing 7 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_connect$hid-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_control_io$cdc_ncm-syz_usb_connect-syz_usb_control_io
detailed listing:
executing program 0:
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000240)=ANY=[@ANYBLOB="12010000000000205f14120200000000000109022400010000600009040180020300000009210604000122050009058103"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io(r0, &(0x7f0000000380)={0x2c, &(0x7f0000000000)=ANY=[@ANYBLOB="200c06"], 0x0, 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io(r0, &(0x7f00000002c0)={0x2c, &(0x7f0000000040)={0x0, 0x21, 0xd, {0xd, 0xb, "de54f52b1df42f96a509ba"}}, 0x0, 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, &(0x7f0000000340)={0x44, 0x0, 0x0, 0x0, &(0x7f0000000200)={0x20, 0x80, 0x1c}, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$cdc_ncm(0xffffffffffffffff, 0x0, 0x0)
syz_usb_connect(0x2, 0x2d, &(0x7f0000000040)=ANY=[@ANYBLOB="12010000eafa7240936901b0293df400100109021b000124a8008009040000010300000009051dd3"], 0x0)
syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_disconnect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_connect
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x0, 0x1cb, &(0x7f0000000000)=ANY=[@ANYBLOB="12010000122f0d4071040403dfe4000000010902b901010000003f0904"], 0x0)
syz_usb_disconnect(r0)
r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000440)=ANY=[], 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
syz_usb_control_io$hid(r1, &(0x7f0000000040)={0x24, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0x0, 0x22, 0x371, {0x9}}}, &(0x7f0000000080)={0xffffffffffffffeb, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="12010000e2793b10d10501200006010203010902120008000000000904"], 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid-syz_usb_connect-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_connect-syz_usb_control_io$hid-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io
detailed listing:
executing program 0:
r0 = syz_usb_connect$hid(0x2, 0x36, &(0x7f0000000340)=ANY=[@ANYBLOB="12010000000000406a05005000000000000109022400010000e80b0904000001030002000921fd7f000122e30109058103"], 0x0)
syz_usb_connect(0x6, 0x2c3, &(0x7f0000000280)={{0x12, 0x1, 0x300, 0x2a, 0xb7, 0xfb, 0x40, 0x413c, 0x81a9, 0xeb17, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x2b1, 0x2, 0x0, 0xa6, 0x50, 0x1}}]}}, 0x0)
syz_usb_control_io$hid(r0, 0x0, 0x0)
syz_usb_control_io$hid(0xffffffffffffffff, &(0x7f00000002c0)={0x24, 0x0, 0x0, &(0x7f0000000200)={0x0, 0x22, 0xe, {[@local=@item_4={0x3, 0x2, 0x0, "4550c321"}, @global=@item_012={0x1, 0x1, 0x9, "f5"}, @global=@item_012={0x1, 0x1, 0x7, "84"}, @main=@item_4={0x3, 0x0, 0xb, "4070f43f"}]}}, 0x0}, 0x0)
syz_usb_connect(0x5, 0x24, 0x0, 0x0)
syz_usb_control_io$hid(r0, &(0x7f0000000040)={0x24, 0x0, 0x0, 0x0, &(0x7f00000001c0)={0x0, 0x22, 0x371, {0x9}}}, &(0x7f0000000080)={0xffffffffffffffeb, 0x0, 0x0, 0x0, 0x0, 0x0})
r1 = syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000080)=ANY=[@ANYBLOB="12010000000000403810c21200000000000109022400010000000009040000010300000009210000000122070009058803"], 0x0)
syz_usb_control_io$hid(r1, 0x0, 0x0)
syz_usb_control_io(r1, &(0x7f00000000c0)={0x2c, &(0x7f00000002c0)={0x20, 0x22, 0x8, {0x6, 0x10, "b806849a7cd2"}}, 0x0, 0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_disconnect-syz_usb_connect$uac1-syz_usb_control_io$uac1-syz_usb_control_io$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)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)
syz_usb_control_io$hid(r2, 0x0, 0x0)
syz_usb_control_io$hid(r2, &(0x7f0000000040)={0xffe7, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022180000000501150825ff0904a1010901a1007508950109308102c0c0"], 0x0}, 0x0)
syz_usb_disconnect(r1)
syz_usb_connect$uac1(0x0, 0xaf, &(0x7f0000000180)=ANY=[], 0x0)
syz_usb_control_io$uac1(r1, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_disconnect-syz_usb_connect$uac1-syz_usb_control_io$uac1
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$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$hid(r2, 0x0, 0x0)
syz_usb_control_io$hid(r2, &(0x7f0000000040)={0xffe7, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022180000000501150825ff0904a1010901a1007508950109308102c0c0"], 0x0}, 0x0)
syz_usb_disconnect(r1)
syz_usb_connect$uac1(0x0, 0xaf, &(0x7f0000000180)=ANY=[], 0x0)
syz_usb_control_io$uac1(r1, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_disconnect-syz_usb_connect$uac1-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$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$hid(r2, 0x0, 0x0)
syz_usb_control_io$hid(r2, &(0x7f0000000040)={0xffe7, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022180000000501150825ff0904a1010901a1007508950109308102c0c0"], 0x0}, 0x0)
syz_usb_disconnect(r1)
syz_usb_connect$uac1(0x0, 0xaf, &(0x7f0000000180)=ANY=[], 0x0)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_disconnect-syz_usb_control_io$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)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)
syz_usb_control_io$hid(r2, 0x0, 0x0)
syz_usb_control_io$hid(r2, &(0x7f0000000040)={0xffe7, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022180000000501150825ff0904a1010901a1007508950109308102c0c0"], 0x0}, 0x0)
syz_usb_disconnect(r1)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$hid-syz_usb_control_io$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)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$hid(0x3, 0x36, &(0x7f0000000580)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x20, 0x9da, 0x6, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x0, 0x10, 0x2, "", [{{0x9, 0x4, 0x0, 0x5, 0x22, 0x3, 0x0, 0x0, 0x0, {0x9, 0x21, 0xdbc1, 0x0, 0x1, {0x22, 0x18}}, {{{0x9, 0x5, 0x81, 0x3, 0x400, 0x0, 0x4, 0x4}}}}}]}}]}}, 0x0)
syz_usb_control_io$hid(r2, 0x0, 0x0)
syz_usb_control_io$hid(r2, &(0x7f0000000040)={0xffe7, 0x0, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0022180000000501150825ff0904a1010901a1007508950109308102c0c0"], 0x0}, 0x0)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_connect$hid-syz_usb_control_io$hid-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
r2 = syz_usb_connect$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$hid(r2, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-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)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
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(r1, 0x0, 0x0)

VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect-syz_usb_control_io$cdc_ecm
detailed listing:
executing program 0:
r0 = syz_usb_connect(0x2, 0x57, &(0x7f0000000000)=ANY=[@ANYBLOB="1201100100000040cc1769190001010203010902450001010080320904000002ffffff0007058102400000070501024000000904000104ffffff00070581024000000705010240"], 0x0)
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_ep_read(r0, 0x1, 0x0, 0x0)
syz_usb_ep_write(r0, 0x81, 0xf, &(0x7f0000000100)="0100000d00"/15)
r1 = syz_usb_connect(0x2, 0x3c, &(0x7f0000000380)=ANY=[@ANYBLOB="120101000814c910be0632a2f333010203010902120001000000000904"], 0x0)
syz_usb_control_io$cdc_ecm(r1, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-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_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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-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_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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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_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: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
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)
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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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, 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)
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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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], 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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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, 0x0, 0x0)
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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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, 0x0, &(0x7f0000000100))
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
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-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$hid(0x3, 0x0, 0x0, 0x0)
syz_usb_control_io$cdc_ecm(0xffffffffffffffff, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
VM was preempted during C execution: failed to run command in VM: instance is preempted, retrying
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_ep_read-syz_usb_ep_write-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
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: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-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=6m0s, {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-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=6m0s, {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-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing compiled C program (duration=6m0s, {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-syz_usb_connect$hid-syz_usb_control_io$cdc_ecm
program crashed: KASAN: slab-use-after-free Read in input_dev_uevent
testing program (duration=6m0s, {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-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: lost connection to test machine
suppressed program crash: lost connection to test machine
validation run: crashed=false
testing program (duration=6m0s, {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-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
validation run: crashed=true
testing program (duration=6m0s, {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-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
validation run: crashed=true
testing program (duration=6m0s, {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-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
validation run: crashed=true
reproducing took 2h31m39.899715362s
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+0x471/0x4d0 lib/vsprintf.c:730
Read of size 1 at addr ffff888121775193 by task udevd/2869


CPU: 0 UID: 0 PID: 2869 Comm: udevd Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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
 string_nocheck lib/vsprintf.c:648 [inline]
 string+0x471/0x4d0 lib/vsprintf.c:730
 vsnprintf+0x422/0x1300 lib/vsprintf.c:2949
 add_uevent_var+0x183/0x3a0 lib/kobject_uevent.c:682
 input_dev_uevent+0x162/0x910 drivers/input/input.c:1737
 dev_uevent+0x2f1/0x870 drivers/base/core.c:2783
 uevent_show+0x1ca/0x3a0 drivers/base/core.c:2830
 dev_attr_show+0x52/0xa0 drivers/base/core.c:2491
 sysfs_kf_seq_show+0x217/0x3f0 fs/sysfs/file.c:65
 seq_read_iter+0x32f/0x1270 fs/seq_file.c:231
 kernfs_fop_read_iter+0x46c/0x610 fs/kernfs/file.c:290
 new_sync_read fs/read_write.c:493 [inline]
 vfs_read+0x82e/0xb40 fs/read_write.c:574
 ksys_read+0x12a/0x250 fs/read_write.c:716
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4ab6602407
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:00007ffec53302e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f4ab6514880 RCX: 00007f4ab6602407
RDX: 0000000000001000 RSI: 0000557f159715f0 RDI: 000000000000000c
RBP: 00007f4ab674aff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007f4ab674aea0 R14: 0000000000000000 R15: 0000557f15960fa0
 </TASK>

Allocated by task 5792:
 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:398 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5414 [inline]
 __kmalloc_noprof+0x315/0x7e0 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x74/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x209/0x1270 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 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:2708
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 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.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
 process_scheduled_works kernel/workqueue.c:3470 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5792:
 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:253 [inline]
 __kasan_slab_free+0x43/0x70 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+0x20c/0x650 mm/slub.c:6792
 snd_card_do_free sound/core/init.c:609 [inline]
 release_card_device+0x1d4/0x230 sound/core/init.c:153
 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
 snd_card_free_when_closed sound/core/init.c:630 [inline]
 snd_card_free_when_closed sound/core/init.c:624 [inline]
 snd_card_free+0x11a/0x190 sound/core/init.c:662
 snd_probe+0xdc3/0x1270 sound/usb/caiaq/device.c:553
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 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:2708
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 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.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
 process_scheduled_works kernel/workqueue.c:3470 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 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 ffff888121774000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4499 bytes inside of
 freed 8192-byte region [ffff888121774000, ffff888121776000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121770
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x200000000000040(head|node=0|zone=2)
page_type: f5(slab)
raw: 0200000000000040 ffff888100042280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 0200000000000040 ffff888100042280 dead000000000100 dead000000000122
head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 0200000000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: 0000000000000000 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 1132, tgid 1132 (kworker/1:2), ts 139058368710
 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+0xf4b/0x3430 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2d7/0x2f70 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:7410
 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]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_noprof+0x61c/0x7e0 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x74/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x209/0x1270 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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
page last free pid 3922 tgid 3922 ts 83988133778 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x714/0xfc0 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+0x4e/0x70 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+0x264/0x650 mm/slub.c:5010
 anon_vma_chain_alloc mm/rmap.c:142 [inline]
 __anon_vma_prepare+0xae/0x5e0 mm/rmap.c:194
 __vmf_anon_prepare+0x11f/0x250 mm/memory.c:3899
 vmf_anon_prepare mm/internal.h:572 [inline]
 do_anonymous_page mm/memory.c:5416 [inline]
 do_pte_missing mm/memory.c:4636 [inline]
 handle_pte_fault mm/memory.c:6496 [inline]
 __handle_mm_fault+0x20fc/0x3750 mm/memory.c:6645
 handle_mm_fault+0x37b/0xa30 mm/memory.c:6814
 do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595

Memory state around the buggy address:
 ffff888121775080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888121775100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888121775180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888121775200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888121775280: 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+0x471/0x4d0 lib/vsprintf.c:730
Read of size 1 at addr ffff888121775193 by task udevd/2869


CPU: 0 UID: 0 PID: 2869 Comm: udevd Not tainted syzkaller #0 PREEMPT(lazy) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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
 string_nocheck lib/vsprintf.c:648 [inline]
 string+0x471/0x4d0 lib/vsprintf.c:730
 vsnprintf+0x422/0x1300 lib/vsprintf.c:2949
 add_uevent_var+0x183/0x3a0 lib/kobject_uevent.c:682
 input_dev_uevent+0x162/0x910 drivers/input/input.c:1737
 dev_uevent+0x2f1/0x870 drivers/base/core.c:2783
 uevent_show+0x1ca/0x3a0 drivers/base/core.c:2830
 dev_attr_show+0x52/0xa0 drivers/base/core.c:2491
 sysfs_kf_seq_show+0x217/0x3f0 fs/sysfs/file.c:65
 seq_read_iter+0x32f/0x1270 fs/seq_file.c:231
 kernfs_fop_read_iter+0x46c/0x610 fs/kernfs/file.c:290
 new_sync_read fs/read_write.c:493 [inline]
 vfs_read+0x82e/0xb40 fs/read_write.c:574
 ksys_read+0x12a/0x250 fs/read_write.c:716
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4ab6602407
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:00007ffec53302e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f4ab6514880 RCX: 00007f4ab6602407
RDX: 0000000000001000 RSI: 0000557f159715f0 RDI: 000000000000000c
RBP: 00007f4ab674aff0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000a
R13: 00007f4ab674aea0 R14: 0000000000000000 R15: 0000557f15960fa0
 </TASK>

Allocated by task 5792:
 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:398 [inline]
 __kasan_kmalloc+0x8f/0xa0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5414 [inline]
 __kmalloc_noprof+0x315/0x7e0 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x74/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x209/0x1270 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 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:2708
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 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.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
 process_scheduled_works kernel/workqueue.c:3470 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Freed by task 5792:
 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:253 [inline]
 __kasan_slab_free+0x43/0x70 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+0x20c/0x650 mm/slub.c:6792
 snd_card_do_free sound/core/init.c:609 [inline]
 release_card_device+0x1d4/0x230 sound/core/init.c:153
 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
 snd_card_free_when_closed sound/core/init.c:630 [inline]
 snd_card_free_when_closed sound/core/init.c:624 [inline]
 snd_card_free+0x11a/0x190 sound/core/init.c:662
 snd_probe+0xdc3/0x1270 sound/usb/caiaq/device.c:553
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 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:2708
 usb_new_device drivers/usb/core/hub.c:5833 [inline]
 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.cold+0x51a/0xe9d drivers/usb/core/hub.c:5966
 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3387
 process_scheduled_works kernel/workqueue.c:3470 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3551
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x69f/0xc90 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 ffff888121774000
 which belongs to the cache kmalloc-8k of size 8192
The buggy address is located 4499 bytes inside of
 freed 8192-byte region [ffff888121774000, ffff888121776000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121770
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x200000000000040(head|node=0|zone=2)
page_type: f5(slab)
raw: 0200000000000040 ffff888100042280 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 0200000000000040 ffff888100042280 dead000000000100 dead000000000122
head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
head: 0200000000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff
head: 0000000000000000 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 1132, tgid 1132 (kworker/1:2), ts 139058368710
 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+0xf4b/0x3430 mm/page_alloc.c:3943
 __alloc_frozen_pages_noprof+0x2d7/0x2f70 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:7410
 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]
 __do_kmalloc_node mm/slub.c:5413 [inline]
 __kmalloc_noprof+0x61c/0x7e0 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 snd_card_new+0x74/0x110 sound/core/init.c:184
 create_card sound/usb/caiaq/device.c:429 [inline]
 snd_probe+0x209/0x1270 sound/usb/caiaq/device.c:544
 usb_probe_interface+0x386/0x9b0 drivers/usb/core/driver.c:399
 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
page last free pid 3922 tgid 3922 ts 83988133778 stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 __free_pages_prepare mm/page_alloc.c:1418 [inline]
 __free_frozen_pages+0x714/0xfc0 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+0x4e/0x70 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+0x264/0x650 mm/slub.c:5010
 anon_vma_chain_alloc mm/rmap.c:142 [inline]
 __anon_vma_prepare+0xae/0x5e0 mm/rmap.c:194
 __vmf_anon_prepare+0x11f/0x250 mm/memory.c:3899
 vmf_anon_prepare mm/internal.h:572 [inline]
 do_anonymous_page mm/memory.c:5416 [inline]
 do_pte_missing mm/memory.c:4636 [inline]
 handle_pte_fault mm/memory.c:6496 [inline]
 __handle_mm_fault+0x20fc/0x3750 mm/memory.c:6645
 handle_mm_fault+0x37b/0xa30 mm/memory.c:6814
 do_user_addr_fault+0x5a7/0x11d0 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595

Memory state around the buggy address:
 ffff888121775080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888121775100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff888121775180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                         ^
 ffff888121775200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff888121775280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================