Extracting prog: 1m21.1422592s Minimizing prog: 6m36.608511665s Simplifying prog options: 0s Extracting C: 29.74936582s Simplifying C: 3m34.685653457s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 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 cancel_delayed_work_sync program crashed: BUG: sleeping function called from invalid context in cancel_delayed_work_sync single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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, 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) program did not crash testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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, &(0x7f0000000600)={0x40}, 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=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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 cancel_delayed_work_sync simplifying C reproducer testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 cancel_delayed_work_sync testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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 cancel_delayed_work_sync testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 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 cancel_delayed_work_sync validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 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 cancel_delayed_work_sync validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 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)={0x7c, &(0x7f0000000600)={0x40, 0x0, 0xf, "0f00000100"/15}, 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 cancel_delayed_work_sync validation run: crashed=true reproducing took 13m54.361368607s 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: 0, name: swapper/1 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 locks held by swapper/1/0: 1, last CPU#1: #0: ffffc900006b0c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 __might_resched.cold+0x1dc/0x222 kernel/sched/core.c:9264 __cancel_work_sync kernel/workqueue.c:4561 [inline] cancel_delayed_work_sync+0xb8/0xf0 kernel/workqueue.c:4642 mmc_free_host+0x19/0x40 drivers/mmc/core/host.c:700 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0x16a/0x210 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+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: 77 93 02 e9 43 50 03 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 03 68 19 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc90000187e00 EFLAGS: 00000206 RAX: 000000000008670f RBX: ffff88801f69cb00 RCX: ffffffff8bd251c5 RDX: 0000000000000001 RSI: ffffffff8e38df50 RDI: ffffffff8c623980 RBP: ffffed1003ed3960 R08: 0000000000000001 R09: ffffed100d4a67bd R10: ffff88806a533deb R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 1ffff92000030fc4 R15: dffffc0000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:62 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:768 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x3ae/0x5b0 kernel/sched/idle.c:355 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:454 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x158 ODEBUG: object ffffc900006b0a60 is NOT on stack ffffc90000180000, but annotated. ------------[ cut here ]------------ 1 WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: swapper/1/0 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705, CPU#1: swapper/1/0 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline] RIP: 0010:lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705 Code: c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 83 c5 01 89 2d a0 71 7d 1a 4c 89 e6 48 c7 c7 c0 44 62 8c e8 91 ad eb ff 90 <0f> 0b 90 e9 82 e3 fe 03 83 c5 01 89 2d 7f 71 7d 1a 49 39 c4 73 da RSP: 0018:ffffc900006b08f0 EFLAGS: 00010082 RAX: 0000000000000050 RBX: ffff8880341bcf18 RCX: 0000000000000000 RDX: 0000000000000050 RSI: ffffffff81ea2579 RDI: fffff520000d610f RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000102 R11: 0000000000000001 R12: ffffc900006b0a60 R13: ffff88801f69cb00 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880d5c52000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055592d51d170 CR3: 000000000eb96000 CR4: 0000000000352ef0 Call Trace: lookup_object_or_alloc lib/debugobjects.c:682 [inline] __debug_object_init+0x2a9/0x3d0 lib/debugobjects.c:798 __synchronize_srcu+0x1c3/0x300 kernel/rcu/srcutree.c:1475 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237 wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236 mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69 device_release+0xd2/0x270 drivers/base/core.c:2640 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1f7/0x640 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3884 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0x16a/0x210 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+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: 77 93 02 e9 43 50 03 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 03 68 19 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc90000187e00 EFLAGS: 00000206 RAX: 000000000008670f RBX: ffff88801f69cb00 RCX: ffffffff8bd251c5 RDX: 0000000000000001 RSI: ffffffff8e38df50 RDI: ffffffff8c623980 RBP: ffffed1003ed3960 R08: 0000000000000001 R09: ffffed100d4a67bd R10: ffff88806a533deb R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 1ffff92000030fc4 R15: dffffc0000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:62 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:768 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x3ae/0x5b0 kernel/sched/idle.c:355 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:454 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x158 ---------------- Code disassembly (best guess): 0: 77 93 ja 0xffffff95 2: 02 e9 add %cl,%ch 4: 43 50 rex.XB push %r8 6: 03 00 add (%rax),%eax 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 03 68 19 00 verw 0x196803(%rip) # 0x19682b 28: fb sti 29: f4 hlt * 2a: c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 66 90 xchg %ax,%ax 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop 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: 0, name: swapper/1 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 locks held by swapper/1/0: 1, last CPU#1: #0: ffffc900006b0c98 ((&vub300->inactivity_timer)){+.-.}-{0:0}, at: call_timer_fn+0x11d/0x5f0 kernel/time/timer.c:1745 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 __might_resched.cold+0x1dc/0x222 kernel/sched/core.c:9264 __cancel_work_sync kernel/workqueue.c:4561 [inline] cancel_delayed_work_sync+0xb8/0xf0 kernel/workqueue.c:4642 mmc_free_host+0x19/0x40 drivers/mmc/core/host.c:700 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0x16a/0x210 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+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: 77 93 02 e9 43 50 03 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 03 68 19 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc90000187e00 EFLAGS: 00000206 RAX: 000000000008670f RBX: ffff88801f69cb00 RCX: ffffffff8bd251c5 RDX: 0000000000000001 RSI: ffffffff8e38df50 RDI: ffffffff8c623980 RBP: ffffed1003ed3960 R08: 0000000000000001 R09: ffffed100d4a67bd R10: ffff88806a533deb R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 1ffff92000030fc4 R15: dffffc0000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:62 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:768 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x3ae/0x5b0 kernel/sched/idle.c:355 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:454 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x158 ODEBUG: object ffffc900006b0a60 is NOT on stack ffffc90000180000, but annotated. ------------[ cut here ]------------ 1 WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: swapper/1/0 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705, CPU#1: swapper/1/0 Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:debug_object_is_on_stack lib/debugobjects.c:672 [inline] RIP: 0010:lookup_object_or_alloc.part.0.cold+0x19/0x40 lib/debugobjects.c:705 Code: c4 60 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 83 c5 01 89 2d a0 71 7d 1a 4c 89 e6 48 c7 c7 c0 44 62 8c e8 91 ad eb ff 90 <0f> 0b 90 e9 82 e3 fe 03 83 c5 01 89 2d 7f 71 7d 1a 49 39 c4 73 da RSP: 0018:ffffc900006b08f0 EFLAGS: 00010082 RAX: 0000000000000050 RBX: ffff8880341bcf18 RCX: 0000000000000000 RDX: 0000000000000050 RSI: ffffffff81ea2579 RDI: fffff520000d610f RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000102 R11: 0000000000000001 R12: ffffc900006b0a60 R13: ffff88801f69cb00 R14: 0000000000000001 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880d5c52000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055592d51d170 CR3: 000000000eb96000 CR4: 0000000000352ef0 Call Trace: lookup_object_or_alloc lib/debugobjects.c:682 [inline] __debug_object_init+0x2a9/0x3d0 lib/debugobjects.c:798 __synchronize_srcu+0x1c3/0x300 kernel/rcu/srcutree.c:1475 wakeup_source_remove drivers/base/power/wakeup.c:201 [inline] wakeup_source_unregister.part.0+0x12c/0x540 drivers/base/power/wakeup.c:237 wakeup_source_unregister+0x1f/0x30 drivers/base/power/wakeup.c:236 mmc_host_classdev_release+0x42/0x120 drivers/mmc/core/host.c:69 device_release+0xd2/0x270 drivers/base/core.c:2640 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x1f7/0x640 lib/kobject.c:737 put_device+0x1f/0x30 drivers/base/core.c:3884 vub300_delete drivers/mmc/host/vub300.c:379 [inline] kref_put include/linux/kref.h:65 [inline] vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline] vub300_inactivity_timer_expired+0x42f/0x550 drivers/mmc/host/vub300.c:742 call_timer_fn+0x198/0x5f0 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1799 [inline] __run_timers+0x757/0xb00 kernel/time/timer.c:2374 __run_timer_base kernel/time/timer.c:2386 [inline] __run_timer_base kernel/time/timer.c:2378 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2395 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405 handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645 __do_softirq kernel/softirq.c:679 [inline] invoke_softirq kernel/softirq.c:519 [inline] __irq_exit_rcu+0x16a/0x210 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+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64 Code: 77 93 02 e9 43 50 03 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 03 68 19 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 RSP: 0018:ffffc90000187e00 EFLAGS: 00000206 RAX: 000000000008670f RBX: ffff88801f69cb00 RCX: ffffffff8bd251c5 RDX: 0000000000000001 RSI: ffffffff8e38df50 RDI: ffffffff8c623980 RBP: ffffed1003ed3960 R08: 0000000000000001 R09: ffffed100d4a67bd R10: ffff88806a533deb R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 1ffff92000030fc4 R15: dffffc0000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:62 [inline] default_idle+0x9/0x10 arch/x86/kernel/process.c:768 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122 cpuidle_idle_call kernel/sched/idle.c:199 [inline] do_idle+0x3ae/0x5b0 kernel/sched/idle.c:355 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:454 start_secondary+0x21d/0x2d0 arch/x86/kernel/smpboot.c:312 common_startup_64+0x13e/0x158 ---------------- Code disassembly (best guess): 0: 77 93 ja 0xffffff95 2: 02 e9 add %cl,%ch 4: 43 50 rex.XB push %r8 6: 03 00 add (%rax),%eax 8: 0f 1f 00 nopl (%rax) b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 03 68 19 00 verw 0x196803(%rip) # 0x19682b 28: fb sti 29: f4 hlt * 2a: c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 66 90 xchg %ax,%ax 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop