Extracting prog: 19m13.871641439s Minimizing prog: 3m21.236254416s Simplifying prog options: 0s Extracting C: 1m25.004258237s Simplifying C: 21m55.090557567s extracting reproducer from 24 programs testing a last program of every proc single: executing 4 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x2, 0x2d, &(0x7f0000000180)={{0x12, 0x1, 0x250, 0xa2, 0xc0, 0x59, 0x8, 0x7b0, 0x6, 0xb5a8, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0xdb, 0x3, 0x90, 0xe6, [{{0x9, 0x4, 0x56, 0x2, 0x1, 0xac, 0x3f, 0xad, 0xa, [], [{{0x9, 0x5, 0x4, 0x4, 0x8, 0xa, 0x2, 0x9}}]}}]}}]}}, &(0x7f0000001000)={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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usbip_server_init detailed listing: executing program 0: syz_usbip_server_init(0x3) 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect detailed listing: executing program 0: syz_usb_connect(0x0, 0x3d7, &(0x7f00000007c0)=ANY=[@ANYBLOB="120100004cefc008e10593085bfd010203010902c50301000000000904"], 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program did not crash single: failed to extract reproducer bisect: bisecting 24 programs with base timeout 30s testing program (duration=36s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] detailed listing: executing program 0: syz_emit_vhci(&(0x7f0000000040)=ANY=[@ANYBLOB="043e0a0300c9"], 0xd) executing program 0: syz_usb_connect(0x0, 0x24, &(0x7f00000000c0)=ANY=[@ANYBLOB="12010000acbc5840ba0d0030ea26000000010902120001000000000904"], 0x0) executing program 1: syz_emit_vhci(&(0x7f0000000040)=@HCI_EVENT_PKT={0x4, @hci_ev_cmd_status={{0xf, 0x4}, {0x1, 0xfa, 0x41b}}}, 0x7) executing program 0: futex(&(0x7f0000004000), 0x5, 0x0, 0x0, &(0x7f0000004000), 0xb2020000) executing program 1: kexec_load(0x0, 0x1, &(0x7f0000000180)=[{0x0, 0x0, 0x10000000000000, 0x41000000}], 0x0) executing program 0: syz_usb_connect$printer(0x2, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x300, 0x0, 0x0, 0x0, 0x10, 0x525, 0xa4a8, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x1, 0xa, 0xb0, 0xb9, [{{0x9, 0x4, 0x0, 0x9, 0x2, 0x7, 0x1, 0x2, 0x4, "", {{{0x9, 0x5, 0x1, 0x2, 0x400, 0xac, 0x2, 0x80}}, [{{0x9, 0x5, 0x82, 0x2, 0x200, 0x6, 0x5, 0x9}}]}}}]}}]}}, &(0x7f0000000500)={0x0, 0x0, 0x0, 0x0}) executing program 1: syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='maps\x00') executing program 1: arch_prctl$ARCH_REQ_XCOMP_GUEST_PERM(0x1025, 0x4000000000000b) executing program 3: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000180)={0x3, &(0x7f0000000440)=[{0x4d, 0x0, 0x1, 0xfffffffc}, {0x4, 0x4}, {0x6, 0xff, 0x0, 0x7fff0000}]}) executing program 1: syz_usb_connect(0x2, 0x46, &(0x7f0000003340)={{0x12, 0x1, 0x300, 0x45, 0x9c, 0xb1, 0x8, 0x1199, 0x68aa, 0xc992, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x34, 0x1, 0x6, 0x80, 0x90, 0x6, [{{0x9, 0x4, 0x7, 0x5, 0x3, 0xa7, 0x30, 0xc7, 0x1, [], [{{0x9, 0x5, 0xb, 0x8, 0xe4361f42ef54a988, 0x2, 0x8, 0x40, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0xf9, 0xac1}]}}, {{0x9, 0x5, 0x6, 0x0, 0x40, 0x3, 0x9, 0xd6}}, {{0x9, 0x5, 0xf, 0x8, 0x8, 0x3, 0x7f, 0x9}}]}}]}}]}}, &(0x7f0000003840)={0x0, 0x0, 0x5, &(0x7f0000003640)={0x5, 0xf, 0x5}}) executing program 3: mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000000080)='./cgroup\x00', &(0x7f0000000040)='romfs\x00', 0x208402, 0x0) executing program 3: socket(0x22, 0x2, 0x1) executing program 3: syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x300, 0xe5, 0xb8, 0x1a, 0x8, 0x17ef, 0x7205, 0x694b, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x47, 0xf8, 0x120, 0x2, [{{0x9, 0x4, 0xde, 0x4, 0x0, 0x9, 0xfb, 0xf6}}]}}]}}, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0}) executing program 0: socketpair(0x11, 0x800, 0x1, &(0x7f0000000000)) executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) executing program 2: rt_sigsuspend(0x0, 0x0) executing program 1: syz_usb_connect(0x0, 0x3d7, &(0x7f00000007c0)=ANY=[@ANYBLOB="120100004cefc008e10593085bfd010203010902c50301000000000904"], 0x0) executing program 2: syz_init_net_socket$ax25(0x3, 0x5, 0x1) executing program 2: syz_emit_vhci(&(0x7f0000000100)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}, {0x9, 0xda7f85dd9c3a0aca, @any, 0x2, 0x1, 0x7, 0x7, 0x4, 0xc}}}, 0x14) executing program 2: setfsuid(0x0) executing program 2: syz_usbip_server_init(0x3) executing program 3: prctl$PR_SET_MM(0x23, 0x1, &(0x7f0000ffb000/0x4000)=nil) executing program 3: syz_usb_connect(0x2, 0x2d, &(0x7f0000000180)={{0x12, 0x1, 0x250, 0xa2, 0xc0, 0x59, 0x8, 0x7b0, 0x6, 0xb5a8, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0xdb, 0x3, 0x90, 0xe6, [{{0x9, 0x4, 0x56, 0x2, 0x1, 0xac, 0x3f, 0xad, 0xa, [], [{{0x9, 0x5, 0x4, 0x4, 0x8, 0xa, 0x2, 0x9}}]}}]}}]}}, &(0x7f0000001000)={0x0, 0x0, 0x0, 0x0}) program crashed: WARNING in flush_delayed_work bisect: bisecting 24 programs bisect: split chunks (needed=false): <24> bisect: split chunk #0 of len 24 into 3 parts bisect: testing without sub-chunk 1/3 testing program (duration=34s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] detailed listing: executing program 3: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000180)={0x3, &(0x7f0000000440)=[{0x4d, 0x0, 0x1, 0xfffffffc}, {0x4, 0x4}, {0x6, 0xff, 0x0, 0x7fff0000}]}) executing program 1: syz_usb_connect(0x2, 0x46, &(0x7f0000003340)={{0x12, 0x1, 0x300, 0x45, 0x9c, 0xb1, 0x8, 0x1199, 0x68aa, 0xc992, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x34, 0x1, 0x6, 0x80, 0x90, 0x6, [{{0x9, 0x4, 0x7, 0x5, 0x3, 0xa7, 0x30, 0xc7, 0x1, [], [{{0x9, 0x5, 0xb, 0x8, 0xe4361f42ef54a988, 0x2, 0x8, 0x40, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0xf9, 0xac1}]}}, {{0x9, 0x5, 0x6, 0x0, 0x40, 0x3, 0x9, 0xd6}}, {{0x9, 0x5, 0xf, 0x8, 0x8, 0x3, 0x7f, 0x9}}]}}]}}]}}, &(0x7f0000003840)={0x0, 0x0, 0x5, &(0x7f0000003640)={0x5, 0xf, 0x5}}) executing program 3: mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000000080)='./cgroup\x00', &(0x7f0000000040)='romfs\x00', 0x208402, 0x0) executing program 3: socket(0x22, 0x2, 0x1) executing program 3: syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x300, 0xe5, 0xb8, 0x1a, 0x8, 0x17ef, 0x7205, 0x694b, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x47, 0xf8, 0x120, 0x2, [{{0x9, 0x4, 0xde, 0x4, 0x0, 0x9, 0xfb, 0xf6}}]}}]}}, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0}) executing program 0: socketpair(0x11, 0x800, 0x1, &(0x7f0000000000)) executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) executing program 2: rt_sigsuspend(0x0, 0x0) executing program 1: syz_usb_connect(0x0, 0x3d7, &(0x7f00000007c0)=ANY=[@ANYBLOB="120100004cefc008e10593085bfd010203010902c50301000000000904"], 0x0) executing program 2: syz_init_net_socket$ax25(0x3, 0x5, 0x1) executing program 2: syz_emit_vhci(&(0x7f0000000100)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}, {0x9, 0xda7f85dd9c3a0aca, @any, 0x2, 0x1, 0x7, 0x7, 0x4, 0xc}}}, 0x14) executing program 2: setfsuid(0x0) executing program 2: syz_usbip_server_init(0x3) executing program 3: prctl$PR_SET_MM(0x23, 0x1, &(0x7f0000ffb000/0x4000)=nil) executing program 3: syz_usb_connect(0x2, 0x2d, &(0x7f0000000180)={{0x12, 0x1, 0x250, 0xa2, 0xc0, 0x59, 0x8, 0x7b0, 0x6, 0xb5a8, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0xdb, 0x3, 0x90, 0xe6, [{{0x9, 0x4, 0x56, 0x2, 0x1, 0xac, 0x3f, 0xad, 0xa, [], [{{0x9, 0x5, 0x4, 0x4, 0x8, 0xa, 0x2, 0x9}}]}}]}}]}}, &(0x7f0000001000)={0x0, 0x0, 0x0, 0x0}) program crashed: WARNING in flush_delayed_work bisect: the chunk can be dropped bisect: testing without sub-chunk 2/3 testing program (duration=32s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1, 1, 1, 1, 1, 1, 1] detailed listing: executing program 2: rt_sigsuspend(0x0, 0x0) executing program 1: syz_usb_connect(0x0, 0x3d7, &(0x7f00000007c0)=ANY=[@ANYBLOB="120100004cefc008e10593085bfd010203010902c50301000000000904"], 0x0) executing program 2: syz_init_net_socket$ax25(0x3, 0x5, 0x1) executing program 2: syz_emit_vhci(&(0x7f0000000100)=@HCI_EVENT_PKT={0x4, @hci_ev_sync_conn_complete={{0x2c, 0x11}, {0x9, 0xda7f85dd9c3a0aca, @any, 0x2, 0x1, 0x7, 0x7, 0x4, 0xc}}}, 0x14) executing program 2: setfsuid(0x0) executing program 2: syz_usbip_server_init(0x3) executing program 3: prctl$PR_SET_MM(0x23, 0x1, &(0x7f0000ffb000/0x4000)=nil) executing program 3: syz_usb_connect(0x2, 0x2d, &(0x7f0000000180)={{0x12, 0x1, 0x250, 0xa2, 0xc0, 0x59, 0x8, 0x7b0, 0x6, 0xb5a8, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0xdb, 0x3, 0x90, 0xe6, [{{0x9, 0x4, 0x56, 0x2, 0x1, 0xac, 0x3f, 0xad, 0xa, [], [{{0x9, 0x5, 0x4, 0x4, 0x8, 0xa, 0x2, 0x9}}]}}]}}]}}, &(0x7f0000001000)={0x0, 0x0, 0x0, 0x0}) program did not crash bisect: testing without sub-chunk 3/3 testing program (duration=32s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1, 1, 1, 1, 1, 1, 1] detailed listing: executing program 3: prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000180)={0x3, &(0x7f0000000440)=[{0x4d, 0x0, 0x1, 0xfffffffc}, {0x4, 0x4}, {0x6, 0xff, 0x0, 0x7fff0000}]}) executing program 1: syz_usb_connect(0x2, 0x46, &(0x7f0000003340)={{0x12, 0x1, 0x300, 0x45, 0x9c, 0xb1, 0x8, 0x1199, 0x68aa, 0xc992, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x34, 0x1, 0x6, 0x80, 0x90, 0x6, [{{0x9, 0x4, 0x7, 0x5, 0x3, 0xa7, 0x30, 0xc7, 0x1, [], [{{0x9, 0x5, 0xb, 0x8, 0xe4361f42ef54a988, 0x2, 0x8, 0x40, [@uac_iso={0x7, 0x25, 0x1, 0x3, 0xf9, 0xac1}]}}, {{0x9, 0x5, 0x6, 0x0, 0x40, 0x3, 0x9, 0xd6}}, {{0x9, 0x5, 0xf, 0x8, 0x8, 0x3, 0x7f, 0x9}}]}}]}}]}}, &(0x7f0000003840)={0x0, 0x0, 0x5, &(0x7f0000003640)={0x5, 0xf, 0x5}}) executing program 3: mount(&(0x7f0000000000)=@nbd={'/dev/nbd', 0x0}, &(0x7f0000000080)='./cgroup\x00', &(0x7f0000000040)='romfs\x00', 0x208402, 0x0) executing program 3: socket(0x22, 0x2, 0x1) executing program 3: syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x300, 0xe5, 0xb8, 0x1a, 0x8, 0x17ef, 0x7205, 0x694b, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x47, 0xf8, 0x120, 0x2, [{{0x9, 0x4, 0xde, 0x4, 0x0, 0x9, 0xfb, 0xf6}}]}}]}}, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0}) executing program 0: socketpair(0x11, 0x800, 0x1, &(0x7f0000000000)) executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) program crashed: WARNING in flush_delayed_work bisect: the chunk can be dropped bisect: split chunks (needed=true): <8> bisect: split chunk #0 of len 8 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=31s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1, 1, 1] detailed listing: executing program 3: syz_usb_connect(0x3, 0x24, &(0x7f0000000040)={{0x12, 0x1, 0x300, 0xe5, 0xb8, 0x1a, 0x8, 0x17ef, 0x7205, 0x694b, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x12, 0x1, 0x47, 0xf8, 0x120, 0x2, [{{0x9, 0x4, 0xde, 0x4, 0x0, 0x9, 0xfb, 0xf6}}]}}]}}, &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0}) executing program 0: socketpair(0x11, 0x800, 0x1, &(0x7f0000000000)) executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) program crashed: WARNING in corrupted bisect: the chunk can be dropped bisect: testing without sub-chunk 2/2 bisect: no need to test this chunk, it's definitely needed bisect: split chunks (needed=true): <4> bisect: split chunk #0 of len 4 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): [1, 1] detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) program crashed: WARNING in flush_delayed_work bisect: the chunk can be dropped bisect: testing without sub-chunk 2/2 bisect: no need to test this chunk, it's definitely needed bisect: split chunks (needed=true): <2> bisect: split chunk #0 of len 2 into 2 parts bisect: testing without sub-chunk 1/2 testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): arch_prctl$ARCH_GET_FS detailed listing: executing program 2: arch_prctl$ARCH_GET_FS(0x1003, &(0x7f0000000180)) program did not crash bisect: testing without sub-chunk 2/2 testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program crashed: WARNING in flush_delayed_work bisect: the chunk can be dropped bisect: split chunks (needed=true): <1> bisect: split chunk #0 of len 1 into 2 parts bisect: no way to further split the chunk bisect: 1 programs left: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) bisect: trying to concatenate bisect: concatenate 1 entries testing program (duration=45s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program crashed: WARNING in flush_delayed_work bisect: concatenation succeeded found reproducer with 1 syscalls minimizing guilty program testing program (duration=45s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, 0x0, 0x0) program did not crash testing program (duration=45s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB, @ANYRES64], 0x0) program did not crash extracting C reproducer testing compiled C program (duration=45s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work simplifying C reproducer testing compiled C program (duration=45s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program did not crash testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program did not crash testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program did not crash testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing compiled C program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid program crashed: WARNING in flush_delayed_work testing program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program crashed: WARNING in flush_delayed_work validation run: crashed=true testing program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program crashed: WARNING in flush_delayed_work validation run: crashed=true testing program (duration=45s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect$hid detailed listing: executing program 0: syz_usb_connect$hid(0x0, 0x36, &(0x7f00000011c0)=ANY=[@ANYBLOB="12010001090003206d0414c340000000000109022400010000a0000904000001030101000921000800012203000905", @ANYRES64], 0x0) program crashed: WARNING in flush_delayed_work validation run: crashed=true reproducing took 50m1.051217727s repro crashed as (corrupted=false): usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? hub 1-1:0.0: USB hub found hub 1-1:0.0: config failed, can't read hub descriptor (err -22) ------------[ cut here ]------------ WARNING: kernel/workqueue.c:4208 at __flush_work+0xabc/0xbc0 kernel/workqueue.c:4208, CPU#1: kworker/1:3/5986 Modules linked in: CPU: 1 UID: 0 PID: 5986 Comm: kworker/1:3 Not tainted 6.16.0-rc3-next-20250627-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0xabc/0xbc0 kernel/workqueue.c:4208 Code: 01 00 00 75 53 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 46 3c ee 09 cc e8 40 40 35 00 90 0f 0b 90 eb a5 e8 35 40 35 00 90 <0f> 0b 90 31 c0 48 8b 5c 24 18 eb 95 e8 23 40 35 00 e9 92 fc ff ff RSP: 0018:ffffc90002ff6940 EFLAGS: 00010293 RAX: ffffffff818ae22b RBX: 1ffff11006499a54 RCX: ffff888025b20000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880324cd288 RBP: ffffc90002ff6b10 R08: ffffffff8fc2ac37 R09: 1ffffffff1f85586 R10: dffffc0000000000 R11: fffffbfff1f85587 R12: 0000000000000000 R13: ffff8880324cd2a0 R14: dffffc0000000000 R15: ffff8880324cd288 FS: 0000000000000000(0000) GS:ffff888125ae6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f05ffff CR3: 0000000079b9a000 CR4: 00000000003526f0 Call Trace: flush_work kernel/workqueue.c:4268 [inline] flush_delayed_work+0x13e/0x190 kernel/workqueue.c:4290 hub_quiesce+0x1f0/0x330 drivers/usb/core/hub.c:1421 hub_disconnect+0xc8/0x470 drivers/usb/core/hub.c:1821 hub_probe+0x132f/0x36e0 drivers/usb/core/hub.c:2016 usb_probe_interface+0x634/0xbf0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2699 hub_port_connect drivers/usb/core/hub.c:5571 [inline] hub_port_connect_change drivers/usb/core/hub.c:5711 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5953 process_one_work kernel/workqueue.c:3239 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3322 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 final repro crashed as (corrupted=false): usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? hub 1-1:0.0: USB hub found hub 1-1:0.0: config failed, can't read hub descriptor (err -22) ------------[ cut here ]------------ WARNING: kernel/workqueue.c:4208 at __flush_work+0xabc/0xbc0 kernel/workqueue.c:4208, CPU#1: kworker/1:3/5986 Modules linked in: CPU: 1 UID: 0 PID: 5986 Comm: kworker/1:3 Not tainted 6.16.0-rc3-next-20250627-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0xabc/0xbc0 kernel/workqueue.c:4208 Code: 01 00 00 75 53 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 46 3c ee 09 cc e8 40 40 35 00 90 0f 0b 90 eb a5 e8 35 40 35 00 90 <0f> 0b 90 31 c0 48 8b 5c 24 18 eb 95 e8 23 40 35 00 e9 92 fc ff ff RSP: 0018:ffffc90002ff6940 EFLAGS: 00010293 RAX: ffffffff818ae22b RBX: 1ffff11006499a54 RCX: ffff888025b20000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880324cd288 RBP: ffffc90002ff6b10 R08: ffffffff8fc2ac37 R09: 1ffffffff1f85586 R10: dffffc0000000000 R11: fffffbfff1f85587 R12: 0000000000000000 R13: ffff8880324cd2a0 R14: dffffc0000000000 R15: ffff8880324cd288 FS: 0000000000000000(0000) GS:ffff888125ae6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f05ffff CR3: 0000000079b9a000 CR4: 00000000003526f0 Call Trace: flush_work kernel/workqueue.c:4268 [inline] flush_delayed_work+0x13e/0x190 kernel/workqueue.c:4290 hub_quiesce+0x1f0/0x330 drivers/usb/core/hub.c:1421 hub_disconnect+0xc8/0x470 drivers/usb/core/hub.c:1821 hub_probe+0x132f/0x36e0 drivers/usb/core/hub.c:2016 usb_probe_interface+0x634/0xbf0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_set_configuration+0x1a87/0x20e0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:250 usb_probe_device+0x1c4/0x390 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x26d/0x9a0 drivers/base/dd.c:657 __driver_probe_device+0x18c/0x2f0 drivers/base/dd.c:799 driver_probe_device+0x4f/0x430 drivers/base/dd.c:829 __device_attach_driver+0x2ce/0x530 drivers/base/dd.c:957 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:462 __device_attach+0x2b8/0x400 drivers/base/dd.c:1029 bus_probe_device+0x185/0x260 drivers/base/bus.c:537 device_add+0x7b6/0xb50 drivers/base/core.c:3691 usb_new_device+0xa39/0x16f0 drivers/usb/core/hub.c:2699 hub_port_connect drivers/usb/core/hub.c:5571 [inline] hub_port_connect_change drivers/usb/core/hub.c:5711 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x2941/0x4a00 drivers/usb/core/hub.c:5953 process_one_work kernel/workqueue.c:3239 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3322 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3403 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245