Extracting prog: 3m28.269629526s
Minimizing prog: 1h35m54.537378907s
Simplifying prog options: 0s
Extracting C: 2m45.113433469s
Simplifying C: 18m41.039239007s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program crashed: INFO: task hung in usb_audio_probe
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
syz_usb_control_io(0xffffffffffffffff, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(0xffffffffffffffff, 0x0, 0x0)
syz_usb_control_io$uac2(0xffffffffffffffff, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(0xffffffffffffffff, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0x0, 0x0, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, 0x0)
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

VM was preempted during syz execution: failed to run command in VM: instance is preempted, retrying
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
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:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
program crashed: INFO: task hung in usb_audio_probe
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program crashed: INFO: task hung in usb_audio_probe
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program crashed: INFO: task hung in usb_audio_probe
validation run: crashed=true
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$uac2-syz_usb_control_io-syz_usb_control_io$uac2-syz_usb_control_io$uac2-syz_usb_control_io$uac2
detailed listing:
executing program 0:
r0 = syz_usb_connect$uac2(0x5, 0xa8, &(0x7f0000000280)={{0x12, 0x1, 0x310, 0x0, 0x0, 0x0, 0x40, 0x582, 0x4c, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x96, 0x3, 0x1, 0x5, 0x30, 0x9, {0x8, 0xb, 0x0, 0x1, 0x1, 0x7, 0x20, 0x8c}, {{{0x9, 0x4, 0x0, 0x0, 0x0, 0x1, 0x1, 0x20, 0x0, {{0x9, 0x24, 0x1, 0x4000, 0x4, 0x1d, 0x7}, [@source_unit={0x8, 0x24, 0xa, 0x0, 0x1, 0xff, 0x23}, @output_terminal={0xc, 0x24, 0x3, 0x2, 0x307, 0x0, 0x4, 0x0, 0x7, 0x81}]}}, {}, {0x9, 0x4, 0x1, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {}, {{0x9, 0x5, 0x1, 0x9, 0x200, 0x3, 0xb, 0x4, {0x8, 0x25, 0x1, 0x0, 0x0, 0x40, 0x4}}}}, {}, {0x9, 0x4, 0x2, 0x1, 0x1, 0x1, 0x2, 0x20, 0x0, {[@format_type_ii_discrete={0x9, 0x24, 0x2, 0x2, 0x4, 0x1ccc, 0x5}, @as_header={0x10, 0x24, 0x1, 0x2, 0x1, 0x0, 0x4, 0x8, 0xb8, 0x3}]}, {{0x9, 0x5, 0x82, 0x9, 0x8, 0x40, 0x6, 0x3, {0x8, 0x25, 0x1, 0x82, 0x3, 0xf3, 0x6}}}}}}}}]}}, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0})
syz_usb_control_io(r0, &(0x7f0000000700)={0x2c, 0x0, &(0x7f0000000000)=ANY=[@ANYBLOB="0003040000000403"], 0x0, 0x0, 0x0}, 0x0)
syz_usb_control_io$uac2(r0, 0x0, 0x0)
syz_usb_control_io$uac2(r0, 0x0, &(0x7f0000000440)={0x44, &(0x7f0000000100)={0x0, 0x30, 0x82, "b669e7dab007758530d1ca355d83d5dd8a19cacfdc39838ddeb5556e264339a2360bce5f7b8b5dc279ac1d8f043733c010bf4b287b04a5352dfbccf1925112f150cdc670def6e1bff309e8fb668857a09349e7c172be619dd0abd0dc555fbb32110a978d6e2c7b910500000000000014285883b095b90272fbd9e7e7050000000567"}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})
syz_usb_control_io$uac2(r0, 0x0, &(0x7f00000001c0)={0x44, &(0x7f0000000040)=ANY=[], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0})

program crashed: INFO: task hung in usb_audio_probe
validation run: crashed=true
reproducing took 2h9m10.733140687s
repro crashed as (corrupted=false):
INFO: task kworker/1:2:375 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2     state:D
 stack:0     pid:375   tgid:375   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/0:3:398 blocked for more than 123 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3     state:D
 stack:0     pid:398   tgid:398   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/0:4:401 blocked for more than 124 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4     state:D
 stack:0     pid:401   tgid:401   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 455e6e6e4058e005312aabb3f62c8d3b97c06770
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
 watchdog+0xdad/0xf00 kernel/hung_task.c:423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 455e6e6e4058e005312aabb3f62c8d3b97c06770
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1b/0x70 kernel/kcov.c:217
Code: 3c 96 5f e3 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 0d 3c 23 7d 7e 65 8b 15 3d 23 7d 7e <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 ec 0b 00 00
RSP: 0018:ffffc900000077e8 EFLAGS: 00000046
RAX: ffffffff81589eb2 RBX: 0000000000000000 RCX: ffff888102652600
RDX: 0000000080000102 RSI: ffffc90000007cf0 RDI: ffff88811463a600
RBP: ffffc900000077e8 R08: 1ffff110228c757f R09: 1ffff110215c8a16
R10: dffffc0000000000 R11: ffffed10215c8a17 R12: ffff88811463a600
R13: 1ffff92000000fa0 R14: ffff88811463a600 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a06985fc0 CR3: 000000010cb3e000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 __to_kthread kernel/kthread.c:94 [inline]
 kthread_is_per_cpu+0x82/0xf0 kernel/kthread.c:609
 can_migrate_task+0x28d/0xf20 kernel/sched/fair.c:9712
 detach_tasks kernel/sched/fair.c:9897 [inline]
 sched_balance_rq+0x2a1c/0x4ce0 kernel/sched/fair.c:12119
 sched_balance_domains+0x477/0x9c0 kernel/sched/fair.c:12549
 sched_balance_softirq+0xbd/0x170 kernel/sched/fair.c:13278
 handle_softirqs+0x1aa/0x630 kernel/softirq.c:621
 __do_softirq kernel/softirq.c:659 [inline]
 invoke_softirq kernel/softirq.c:476 [inline]
 __irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2076 [inline]
RIP: 0010:vprintk_emit+0x547/0x650 kernel/printk/printk.c:2461
Code: 81 e6 00 02 00 00 31 ff e8 16 cf 1e 00 48 81 e3 00 02 00 00 75 07 e8 28 ca 1e 00 eb 06 e8 21 ca 1e 00 fb c6 05 29 1d 55 07 00 <e9> 31 fd ff ff e8 0f ca 1e 00 e9 94 fe ff ff 41 ff ce bf 58 89 41
RSP: 0018:ffffc900000964e0 EFLAGS: 00000293
RAX: ffffffff8168fe0f RBX: 0000000000000200 RCX: ffff888102652600
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc900000965b0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000012c8c R12: 1ffff92000012ca0
R13: 000000000000001b R14: 0000000000000000 R15: dffffc0000000000
 dev_vprintk_emit+0x359/0x420 drivers/base/core.c:4962
 dev_printk_emit+0xef/0x150 drivers/base/core.c:4973
 __dev_printk+0x17f/0x1b0 drivers/base/core.c:4985
 _dev_err+0x11f/0x180 drivers/base/core.c:5028
 parse_uac2_sample_rate_range+0xa66/0xd30 sound/usb/format.c:398
 parse_audio_format_rates_v2v3+0x3cd/0x1a30 sound/usb/format.c:635
 parse_audio_format_ii sound/usb/format.c:777 [inline]
 snd_usb_parse_audio_format+0x4c1/0x750 sound/usb/format.c:798
 snd_usb_get_audioformat_uac12 sound/usb/stream.c:857 [inline]
 __snd_usb_parse_audio_interface+0x1681/0x47d0 sound/usb/stream.c:1202
 snd_usb_parse_audio_interface+0x3e/0xd0 sound/usb/stream.c:1280
 create_standard_audio_quirk+0x63/0x130 sound/usb/quirks.c:101
 snd_usb_create_quirk sound/usb/quirks.c:541 [inline]
 create_composite_quirk+0x21d/0x540 sound/usb/quirks.c:49
 snd_usb_create_quirk+0xae/0x130 sound/usb/quirks.c:541
 usb_audio_probe+0xb62/0x1d60 sound/usb/card.c:960
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

final repro crashed as (corrupted=false):
INFO: task kworker/1:2:375 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2     state:D
 stack:0     pid:375   tgid:375   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/0:3:398 blocked for more than 123 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3     state:D
 stack:0     pid:398   tgid:398   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
INFO: task kworker/0:4:401 blocked for more than 124 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4     state:D
 stack:0     pid:401   tgid:401   ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event

Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:6027 [inline]
 __schedule+0x14ce/0x2100 kernel/sched/core.c:7894
 __schedule_loop kernel/sched/core.c:7975 [inline]
 schedule+0xc5/0x240 kernel/sched/core.c:7990
 schedule_preempt_disabled+0x14/0x30 kernel/sched/core.c:8047
 __mutex_lock_common kernel/locking/mutex.c:707 [inline]
 __mutex_lock+0x960/0x1bc0 kernel/locking/mutex.c:805
 __mutex_lock_slowpath+0xe/0x20 kernel/locking/mutex.c:1136
 mutex_lock+0x113/0x1d0 kernel/locking/mutex.c:285
 usb_audio_probe+0x39d/0x1d60 sound/usb/card.c:887
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 455e6e6e4058e005312aabb3f62c8d3b97c06770
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
 watchdog+0xdad/0xf00 kernel/hung_task.c:423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted syzkaller #0 455e6e6e4058e005312aabb3f62c8d3b97c06770
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1b/0x70 kernel/kcov.c:217
Code: 3c 96 5f e3 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 0d 3c 23 7d 7e 65 8b 15 3d 23 7d 7e <81> e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 ec 0b 00 00
RSP: 0018:ffffc900000077e8 EFLAGS: 00000046
RAX: ffffffff81589eb2 RBX: 0000000000000000 RCX: ffff888102652600
RDX: 0000000080000102 RSI: ffffc90000007cf0 RDI: ffff88811463a600
RBP: ffffc900000077e8 R08: 1ffff110228c757f R09: 1ffff110215c8a16
R10: dffffc0000000000 R11: ffffed10215c8a17 R12: ffff88811463a600
R13: 1ffff92000000fa0 R14: ffff88811463a600 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2a06985fc0 CR3: 000000010cb3e000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 __to_kthread kernel/kthread.c:94 [inline]
 kthread_is_per_cpu+0x82/0xf0 kernel/kthread.c:609
 can_migrate_task+0x28d/0xf20 kernel/sched/fair.c:9712
 detach_tasks kernel/sched/fair.c:9897 [inline]
 sched_balance_rq+0x2a1c/0x4ce0 kernel/sched/fair.c:12119
 sched_balance_domains+0x477/0x9c0 kernel/sched/fair.c:12549
 sched_balance_softirq+0xbd/0x170 kernel/sched/fair.c:13278
 handle_softirqs+0x1aa/0x630 kernel/softirq.c:621
 __do_softirq kernel/softirq.c:659 [inline]
 invoke_softirq kernel/softirq.c:476 [inline]
 __irq_exit_rcu+0x47/0xb0 kernel/softirq.c:708
 irq_exit_rcu+0xd/0x30 kernel/softirq.c:720
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x82/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2076 [inline]
RIP: 0010:vprintk_emit+0x547/0x650 kernel/printk/printk.c:2461
Code: 81 e6 00 02 00 00 31 ff e8 16 cf 1e 00 48 81 e3 00 02 00 00 75 07 e8 28 ca 1e 00 eb 06 e8 21 ca 1e 00 fb c6 05 29 1d 55 07 00 <e9> 31 fd ff ff e8 0f ca 1e 00 e9 94 fe ff ff 41 ff ce bf 58 89 41
RSP: 0018:ffffc900000964e0 EFLAGS: 00000293
RAX: ffffffff8168fe0f RBX: 0000000000000200 RCX: ffff888102652600
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc900000965b0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000012c8c R12: 1ffff92000012ca0
R13: 000000000000001b R14: 0000000000000000 R15: dffffc0000000000
 dev_vprintk_emit+0x359/0x420 drivers/base/core.c:4962
 dev_printk_emit+0xef/0x150 drivers/base/core.c:4973
 __dev_printk+0x17f/0x1b0 drivers/base/core.c:4985
 _dev_err+0x11f/0x180 drivers/base/core.c:5028
 parse_uac2_sample_rate_range+0xa66/0xd30 sound/usb/format.c:398
 parse_audio_format_rates_v2v3+0x3cd/0x1a30 sound/usb/format.c:635
 parse_audio_format_ii sound/usb/format.c:777 [inline]
 snd_usb_parse_audio_format+0x4c1/0x750 sound/usb/format.c:798
 snd_usb_get_audioformat_uac12 sound/usb/stream.c:857 [inline]
 __snd_usb_parse_audio_interface+0x1681/0x47d0 sound/usb/stream.c:1202
 snd_usb_parse_audio_interface+0x3e/0xd0 sound/usb/stream.c:1280
 create_standard_audio_quirk+0x63/0x130 sound/usb/quirks.c:101
 snd_usb_create_quirk sound/usb/quirks.c:541 [inline]
 create_composite_quirk+0x21d/0x540 sound/usb/quirks.c:49
 snd_usb_create_quirk+0xae/0x130 sound/usb/quirks.c:541
 usb_audio_probe+0xb62/0x1d60 sound/usb/card.c:960
 usb_probe_interface+0x6ac/0xc00 drivers/usb/core/driver.c:400
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_set_configuration+0x1acf/0x20b0 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x95/0x160 drivers/usb/core/generic.c:254
 usb_probe_device+0x1d4/0x380 drivers/usb/core/driver.c:295
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2d5/0x890 drivers/base/dd.c:657
 __driver_probe_device+0x198/0x280 drivers/base/dd.c:799
 driver_probe_device+0x54/0x3f0 drivers/base/dd.c:829
 __device_attach_driver+0x2f1/0x4b0 drivers/base/dd.c:957
 bus_for_each_drv+0x267/0x300 drivers/base/bus.c:459
 __device_attach+0x2c9/0x3c0 drivers/base/dd.c:1029
 device_initial_probe+0x1e/0x30 drivers/base/dd.c:1078
 bus_probe_device+0x18b/0x270 drivers/base/bus.c:534
 device_add+0x80c/0xbf0 drivers/base/core.c:3692
 usb_new_device+0x9f8/0x15b0 drivers/usb/core/hub.c:2703
 hub_port_connect drivers/usb/core/hub.c:5574 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5714 [inline]
 port_event drivers/usb/core/hub.c:5878 [inline]
 hub_event+0x30c6/0x4700 drivers/usb/core/hub.c:5960
 process_one_work kernel/workqueue.c:3261 [inline]
 process_scheduled_works+0x7d4/0x1020 kernel/workqueue.c:3342
 worker_thread+0xc51/0x1370 kernel/workqueue.c:3423
 kthread+0x2c9/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>