Extracting prog: 3m1.06954462s Minimizing prog: 19m30.883209537s Simplifying prog options: 0s Extracting C: 58.849494637s Simplifying C: 11m12.911429035s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 1m40s testing program (duration=1m40s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program crashed: BUG: sleeping function called from invalid context in mmc_free_host single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: syz_usb_control_io(0xffffffffffffffff, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(0xffffffffffffffff, 0x0, 0x0) syz_usb_control_io(0xffffffffffffffff, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x24, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x44, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, 0x0) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x44, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x44, &(0x7f0000000080)=ANY=[@ANYBLOB], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash extracting C reproducer testing compiled C program (duration=1m21.359202066s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host simplifying C reproducer testing compiled C program (duration=1m21.359202066s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io program did not crash testing compiled C program (duration=1m21.359202066s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect-syz_usb_control_io-syz_usb_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing compiled C program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io program crashed: BUG: sleeping function called from invalid context in mmc_free_host testing program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program crashed: BUG: sleeping function called from invalid context in mmc_free_host validation run: crashed=true testing program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program crashed: BUG: sleeping function called from invalid context in mmc_free_host validation run: crashed=true testing program (duration=1m21.359202066s, {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_control_io-syz_usb_control_io detailed listing: executing program 0: r0 = syz_usb_connect(0x0, 0x48, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0x0, 0x0, 0x0, 0x8, 0x424, 0x12c, 0x0, 0x0, 0x0, 0x0, 0x1, [{{0x9, 0x2, 0x36, 0x1, 0x0, 0x0, 0x0, 0x0, "", [{{0x9, 0x4, 0x0, 0x0, 0x4, 0xff, 0xff, 0xff, 0x0, [], [{{0x9, 0x5, 0x81, 0x2, 0x200}}, {{0x9, 0x5, 0x2, 0x2, 0x200}}, {{0x9, 0x5, 0x83, 0x2, 0x200}}, {{0x9, 0x5, 0x4, 0x2, 0x200}}]}}]}}]}}, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000100)={0x84, &(0x7f0000000200)={0x40, 0x1}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_usb_control_io(r0, 0x0, 0x0) syz_usb_control_io(r0, 0x0, &(0x7f0000000500)={0x84, &(0x7f0000000080)=ANY=[@ANYBLOB="50000f"], 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program crashed: BUG: sleeping function called from invalid context in mmc_free_host validation run: crashed=true reproducing took 40m22.843674583s repro crashed as (corrupted=false): BUG: sleeping function called from invalid context at kernel/workqueue.c:4561 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4986, name: udevd preempt_count: 100, expected: 0 RCU nest depth: 0, expected: 0 locks held by udevd/4986: 2, last CPU#1: #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: might_alloc include/linux/sched/mm.h:316 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook mm/slub.c:4636 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: slab_alloc_node mm/slub.c:4974 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 #1: ffffc90000a18cc0 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x5f0 kernel/time/timer.c:1745 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:486 [inline] [] handle_softirqs+0xab/0x860 kernel/softirq.c:621 CPU: 1 UID: 0 PID: 4986 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 __might_resched+0x36a/0x4c0 kernel/sched/core.c:9264 __cancel_work_sync+0x6d/0x110 kernel/workqueue.c:4561 mmc_free_host+0x19/0x40 drivers/mmc/core/host.c:700 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947 Code: ff ff ff e8 30 ee 43 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 92 38 f2 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 47 38 da RSP: 0018:ffffc90002e0fc98 EFLAGS: 00000282 RAX: 554f1218638ec800 RBX: 0000000000000001 RCX: 0000000000000046 RDX: 00000000002c5ebd RSI: ffffffff8e69fc8a RDI: ffffffff8c6dad80 RBP: ffff88807eba8000 R08: ffffffff822c36af R09: 0000000000000000 R10: ffffc90002e0fe00 R11: fffff520005c1fc2 R12: ffffffff8ee90400 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246 __fs_reclaim_acquire mm/page_alloc.c:4375 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4389 might_alloc include/linux/sched/mm.h:316 [inline] slab_pre_alloc_hook mm/slub.c:4636 [inline] slab_alloc_node mm/slub.c:4974 [inline] kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 class_filename_flags_constructor include/linux/fs.h:2586 [inline] do_sys_openat2+0xcc/0x200 fs/open.c:1416 do_sys_open fs/open.c:1423 [inline] __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1434 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff481bdb407 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:00007ffe5091d790 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff481b4f880 RCX: 00007ff481bdb407 RDX: 0000000000080141 RSI: 0000558ecf9ab02e RDI: ffffffffffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000 ODEBUG: object ffffc90000a18a80 is NOT on stack ffffc90002e08000, but annotated. ------------[ cut here ]------------ 1 WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: udevd/4986 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc lib/debugobjects.c:705 [inline], CPU#1: udevd/4986 WARNING: lib/debugobjects.c:672 at __debug_object_init+0x2c4/0x3c0 lib/debugobjects.c:798, CPU#1: udevd/4986 Modules linked in: CPU: 1 UID: 0 PID: 4986 Comm: udevd Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline] RIP: 0010:lookup_object_or_alloc lib/debugobjects.c:705 [inline] RIP: 0010:__debug_object_init+0x2c4/0x3c0 lib/debugobjects.c:798 Code: fe 06 cc 41 ff c7 44 89 3d a9 0e e8 15 48 c7 c1 80 b6 6d 8c 48 c7 c7 e0 b6 6d 8c 84 c0 48 0f 45 f9 48 89 de e8 ed 60 3c fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 4f 1c 00 00 8b 05 41 69 6d 0a 3b 05 3f RSP: 0018:ffffc90000a189b8 EFLAGS: 00010046 RAX: 0000000000000050 RBX: ffffc90000a18a80 RCX: 554f1218638ec800 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: ffff88807eba8020 R08: 0000000000000100 R09: 1ffff110170e48e2 R10: dffffc0000000000 R11: ffffed10170e48e3 R12: 1ffff9200014314c R13: ffff888033cd3d90 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007ff481b4f880(0000) GS:ffff888124dc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000034f2a188000 CR3: 000000007e32e000 CR4: 00000000003526f0 Call Trace: __synchronize_srcu+0x1d5/0x2f0 kernel/rcu/srcutree.c:1475 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister+0x129/0x3f0 drivers/base/power/wakeup.c:237 mmc_host_classdev_release+0x47/0x100 drivers/mmc/core/host.c:69 device_release+0xc4/0x1f0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x222/0x550 lib/kobject.c:737 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947 Code: ff ff ff e8 30 ee 43 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 92 38 f2 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 47 38 da RSP: 0018:ffffc90002e0fc98 EFLAGS: 00000282 RAX: 554f1218638ec800 RBX: 0000000000000001 RCX: 0000000000000046 RDX: 00000000002c5ebd RSI: ffffffff8e69fc8a RDI: ffffffff8c6dad80 RBP: ffff88807eba8000 R08: ffffffff822c36af R09: 0000000000000000 R10: ffffc90002e0fe00 R11: fffff520005c1fc2 R12: ffffffff8ee90400 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246 __fs_reclaim_acquire mm/page_alloc.c:4375 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4389 might_alloc include/linux/sched/mm.h:316 [inline] slab_pre_alloc_hook mm/slub.c:4636 [inline] slab_alloc_node mm/slub.c:4974 [inline] kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 class_filename_flags_constructor include/linux/fs.h:2586 [inline] do_sys_openat2+0xcc/0x200 fs/open.c:1416 do_sys_open fs/open.c:1423 [inline] __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1434 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff481bdb407 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:00007ffe5091d790 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff481b4f880 RCX: 00007ff481bdb407 RDX: 0000000000080141 RSI: 0000558ecf9ab02e RDI: ffffffffffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff ljmp (bad) 1: e8 30 ee 43 0a call 0xa43ee36 6: f7 44 24 10 00 02 00 testl $0x200,0x10(%rsp) d: 00 e: 0f 84 38 ff ff ff je 0xffffff4c 14: 65 48 8b 05 92 38 f2 mov %gs:0x11f23892(%rip),%rax # 0x11f238ae 1b: 11 1c: 48 3b 44 24 50 cmp 0x50(%rsp),%rax 21: 75 33 jne 0x56 23: fb sti 24: 48 83 c4 58 add $0x58,%rsp * 28: 5b pop %rbx <-- trapping instruction 29: 41 5c pop %r12 2b: 41 5d pop %r13 2d: 41 5e pop %r14 2f: 41 5f pop %r15 31: 5d pop %rbp 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: cc int3 38: 48 rex.W 39: 8d .byte 0x8d 3a: 3d .byte 0x3d 3b: 47 38 da rex.RXB cmp %r11b,%r10b final repro crashed as (corrupted=false): BUG: sleeping function called from invalid context at kernel/workqueue.c:4561 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4986, name: udevd preempt_count: 100, expected: 0 RCU nest depth: 0, expected: 0 locks held by udevd/4986: 2, last CPU#1: #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: might_alloc include/linux/sched/mm.h:316 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook mm/slub.c:4636 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: slab_alloc_node mm/slub.c:4974 [inline] #0: ffffffff8ee90400 (fs_reclaim){+.+.}-{0:0}, at: kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 #1: ffffc90000a18cc0 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x5f0 kernel/time/timer.c:1745 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:486 [inline] [] handle_softirqs+0xab/0x860 kernel/softirq.c:621 CPU: 1 UID: 0 PID: 4986 Comm: udevd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 __might_resched+0x36a/0x4c0 kernel/sched/core.c:9264 __cancel_work_sync+0x6d/0x110 kernel/workqueue.c:4561 mmc_free_host+0x19/0x40 drivers/mmc/core/host.c:700 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947 Code: ff ff ff e8 30 ee 43 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 92 38 f2 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 47 38 da RSP: 0018:ffffc90002e0fc98 EFLAGS: 00000282 RAX: 554f1218638ec800 RBX: 0000000000000001 RCX: 0000000000000046 RDX: 00000000002c5ebd RSI: ffffffff8e69fc8a RDI: ffffffff8c6dad80 RBP: ffff88807eba8000 R08: ffffffff822c36af R09: 0000000000000000 R10: ffffc90002e0fe00 R11: fffff520005c1fc2 R12: ffffffff8ee90400 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246 __fs_reclaim_acquire mm/page_alloc.c:4375 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4389 might_alloc include/linux/sched/mm.h:316 [inline] slab_pre_alloc_hook mm/slub.c:4636 [inline] slab_alloc_node mm/slub.c:4974 [inline] kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 class_filename_flags_constructor include/linux/fs.h:2586 [inline] do_sys_openat2+0xcc/0x200 fs/open.c:1416 do_sys_open fs/open.c:1423 [inline] __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1434 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff481bdb407 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:00007ffe5091d790 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff481b4f880 RCX: 00007ff481bdb407 RDX: 0000000000080141 RSI: 0000558ecf9ab02e RDI: ffffffffffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000 ODEBUG: object ffffc90000a18a80 is NOT on stack ffffc90002e08000, but annotated. ------------[ cut here ]------------ 1 WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: udevd/4986 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc lib/debugobjects.c:705 [inline], CPU#1: udevd/4986 WARNING: lib/debugobjects.c:672 at __debug_object_init+0x2c4/0x3c0 lib/debugobjects.c:798, CPU#1: udevd/4986 Modules linked in: CPU: 1 UID: 0 PID: 4986 Comm: udevd Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline] RIP: 0010:lookup_object_or_alloc lib/debugobjects.c:705 [inline] RIP: 0010:__debug_object_init+0x2c4/0x3c0 lib/debugobjects.c:798 Code: fe 06 cc 41 ff c7 44 89 3d a9 0e e8 15 48 c7 c1 80 b6 6d 8c 48 c7 c7 e0 b6 6d 8c 84 c0 48 0f 45 f9 48 89 de e8 ed 60 3c fc 90 <0f> 0b 90 e9 c0 fe ff ff e8 4f 1c 00 00 8b 05 41 69 6d 0a 3b 05 3f RSP: 0018:ffffc90000a189b8 EFLAGS: 00010046 RAX: 0000000000000050 RBX: ffffc90000a18a80 RCX: 554f1218638ec800 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: ffff88807eba8020 R08: 0000000000000100 R09: 1ffff110170e48e2 R10: dffffc0000000000 R11: ffffed10170e48e3 R12: 1ffff9200014314c R13: ffff888033cd3d90 R14: dffffc0000000000 R15: 0000000000000001 FS: 00007ff481b4f880(0000) GS:ffff888124dc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000034f2a188000 CR3: 000000007e32e000 CR4: 00000000003526f0 Call Trace: __synchronize_srcu+0x1d5/0x2f0 kernel/rcu/srcutree.c:1475 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister+0x129/0x3f0 drivers/base/power/wakeup.c:237 mmc_host_classdev_release+0x47/0x100 drivers/mmc/core/host.c:69 device_release+0xc4/0x1f0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x222/0x550 lib/kobject.c:737 call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers kernel/time/timer.c:2374 [inline] __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386 run_timer_base kernel/time/timer.c:2395 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405 handle_softirqs+0x226/0x860 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758 irq_exit_rcu+0x9/0x30 kernel/softirq.c:775 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947 Code: ff ff ff e8 30 ee 43 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 92 38 f2 11 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 47 38 da RSP: 0018:ffffc90002e0fc98 EFLAGS: 00000282 RAX: 554f1218638ec800 RBX: 0000000000000001 RCX: 0000000000000046 RDX: 00000000002c5ebd RSI: ffffffff8e69fc8a RDI: ffffffff8c6dad80 RBP: ffff88807eba8000 R08: ffffffff822c36af R09: 0000000000000000 R10: ffffc90002e0fe00 R11: fffff520005c1fc2 R12: ffffffff8ee90400 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000246 __fs_reclaim_acquire mm/page_alloc.c:4375 [inline] fs_reclaim_acquire+0x71/0x100 mm/page_alloc.c:4389 might_alloc include/linux/sched/mm.h:316 [inline] slab_pre_alloc_hook mm/slub.c:4636 [inline] slab_alloc_node mm/slub.c:4974 [inline] kmem_cache_alloc_noprof+0x5f/0x600 mm/slub.c:5010 alloc_filename fs/namei.c:147 [inline] do_getname+0x2e/0x250 fs/namei.c:187 class_filename_flags_constructor include/linux/fs.h:2586 [inline] do_sys_openat2+0xcc/0x200 fs/open.c:1416 do_sys_open fs/open.c:1423 [inline] __do_sys_openat fs/open.c:1439 [inline] __se_sys_openat fs/open.c:1434 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1434 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff481bdb407 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:00007ffe5091d790 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff481b4f880 RCX: 00007ff481bdb407 RDX: 0000000000080141 RSI: 0000558ecf9ab02e RDI: ffffffffffffff9c RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001a4 R11: 0000000000000202 R12: 00000000ffffffff R13: 00000000ffffffff R14: ffffffffffffffff R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: ff ljmp (bad) 1: e8 30 ee 43 0a call 0xa43ee36 6: f7 44 24 10 00 02 00 testl $0x200,0x10(%rsp) d: 00 e: 0f 84 38 ff ff ff je 0xffffff4c 14: 65 48 8b 05 92 38 f2 mov %gs:0x11f23892(%rip),%rax # 0x11f238ae 1b: 11 1c: 48 3b 44 24 50 cmp 0x50(%rsp),%rax 21: 75 33 jne 0x56 23: fb sti 24: 48 83 c4 58 add $0x58,%rsp * 28: 5b pop %rbx <-- trapping instruction 29: 41 5c pop %r12 2b: 41 5d pop %r13 2d: 41 5e pop %r14 2f: 41 5f pop %r15 31: 5d pop %rbp 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: cc int3 38: 48 rex.W 39: 8d .byte 0x8d 3a: 3d .byte 0x3d 3b: 47 38 da rex.RXB cmp %r11b,%r10b