Extracting prog: 2m34.105992216s Minimizing prog: 7m25.139094302s Simplifying prog options: 3m34.74986125s Extracting C: 1m8.369020817s Simplifying C: 0s 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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program crashed: WARNING in usb_stor_msg_common single: successfully extracted reproducer found reproducer with 2 syscalls minimizing guilty program testing program (duration=57.490876452s, {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_ath9k detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) program did not crash testing program (duration=57.490876452s, {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 detailed listing: executing program 0: syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program did not crash testing program (duration=57.490876452s, {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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program did not crash testing program (duration=57.490876452s, {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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x0, 0x0, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program did not crash testing program (duration=57.490876452s, {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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x0, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=57.490876452s, {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_ath9k-syz_usb_connect program did not crash simplifying guilty program options testing program (duration=57.490876452s, {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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program did not crash testing program (duration=57.490876452s, {Threaded:true 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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program crashed: WARNING in usb_stor_msg_common extracting C reproducer testing compiled C program (duration=57.490876452s, {Threaded:true 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_ath9k-syz_usb_connect program did not crash testing program (duration=57.490876452s, {Threaded:true 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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program crashed: WARNING in usb_stor_msg_common validation run: crashed=true testing program (duration=57.490876452s, {Threaded:true 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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program crashed: WARNING in usb_stor_msg_common validation run: crashed=true testing program (duration=57.490876452s, {Threaded:true 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_ath9k-syz_usb_connect detailed listing: executing program 0: syz_usb_connect_ath9k(0x3, 0x5a, &(0x7f0000000000)={{0x12, 0x1, 0x200, 0xff, 0xff, 0xff, 0x40, 0xcf3, 0x9271, 0x108, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x48}}]}}, 0x0) (async) syz_usb_connect(0x0, 0x36, &(0x7f0000000000)={{0x12, 0x1, 0x0, 0xa1, 0xd8, 0xff, 0x20, 0xcf2, 0x6250, 0x4642, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x0, 0x4, 0x10, 0x0, [{{0x9, 0x4, 0x36, 0x10, 0x2, 0xc7, 0x3, 0xe8, 0x8, [], [{{0x9, 0x5, 0x6, 0x2, 0x3ff}}, {{0x9, 0x5, 0x82, 0x2, 0x8}}]}}]}}]}}, 0x0) program crashed: WARNING in usb_stor_msg_common validation run: crashed=true reproducing took 20m18.299289419s repro crashed as (corrupted=false): ------------[ cut here ]------------ URB ffff888144371a00 submitted while active WARNING: drivers/usb/core/urb.c:380 at 0x0, CPU#1: usb-storage/5993 Modules linked in: CPU: 1 UID: 0 PID: 5993 Comm: usb-storage Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:usb_submit_urb+0x7e/0x18d0 drivers/usb/core/urb.c:380 Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 87 b4 1f fb 49 83 3e 00 74 40 e8 fc 5f b9 fa 48 8d 3d 15 c4 c7 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 e1 5f b9 fa eb 05 e8 da 5f RSP: 0018:ffffc900034672e0 EFLAGS: 00010293 RAX: ffffffff87089394 RBX: ffff888144371a00 RCX: ffff88807801bd00 RDX: 0000000000000000 RSI: ffff888144371a00 RDI: ffffffff8fd057b0 RBP: ffffc900034674b8 R08: 0000000000000002 R09: 0000000000000000 R10: ffffc900034673e0 R11: fffff5200068ce87 R12: 0000000000000c00 R13: ffff8880314b0fc8 R14: ffff888144371a08 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125af0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffff7d5bdc8 CR3: 000000007291a000 CR4: 00000000003526f0 Call Trace: usb_stor_msg_common+0x27c/0x4b0 drivers/usb/storage/transport.c:143 usb_stor_bulk_transfer_buf+0x151/0x2a0 drivers/usb/storage/transport.c:395 ene_send_scsi_cmd+0x10d/0x5f0 drivers/usb/storage/ene_ub6250.c:502 ene_get_card_type drivers/usb/storage/ene_ub6250.c:1843 [inline] ene_init+0x14f/0x380 drivers/usb/storage/ene_ub6250.c:2197 ene_transport+0x39b6/0x4660 drivers/usb/storage/ene_ub6250.c:2310 usb_stor_invoke_transport+0x10a/0x19c0 drivers/usb/storage/transport.c:611 usb_stor_control_thread+0x450/0x8e0 drivers/usb/storage/usb.c:462 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 89 f0 mov %esi,%eax 2: 48 c1 e8 03 shr $0x3,%rax 6: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) b: 74 08 je 0x15 d: 4c 89 f7 mov %r14,%rdi 10: e8 87 b4 1f fb call 0xfb1fb49c 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 fc 5f b9 fa call 0xfab9601c 20: 48 8d 3d 15 c4 c7 08 lea 0x8c7c415(%rip),%rdi # 0x8c7c43c 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: b8 f0 ff ff ff mov $0xfffffff0,%eax 34: eb 11 jmp 0x47 36: e8 e1 5f b9 fa call 0xfab9601c 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: da .byte 0xda 3f: 5f pop %rdi final repro crashed as (corrupted=false): ------------[ cut here ]------------ URB ffff888144371a00 submitted while active WARNING: drivers/usb/core/urb.c:380 at 0x0, CPU#1: usb-storage/5993 Modules linked in: CPU: 1 UID: 0 PID: 5993 Comm: usb-storage Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:usb_submit_urb+0x7e/0x18d0 drivers/usb/core/urb.c:380 Code: 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 87 b4 1f fb 49 83 3e 00 74 40 e8 fc 5f b9 fa 48 8d 3d 15 c4 c7 08 48 89 de <67> 48 0f b9 3a b8 f0 ff ff ff eb 11 e8 e1 5f b9 fa eb 05 e8 da 5f RSP: 0018:ffffc900034672e0 EFLAGS: 00010293 RAX: ffffffff87089394 RBX: ffff888144371a00 RCX: ffff88807801bd00 RDX: 0000000000000000 RSI: ffff888144371a00 RDI: ffffffff8fd057b0 RBP: ffffc900034674b8 R08: 0000000000000002 R09: 0000000000000000 R10: ffffc900034673e0 R11: fffff5200068ce87 R12: 0000000000000c00 R13: ffff8880314b0fc8 R14: ffff888144371a08 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888125af0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffff7d5bdc8 CR3: 000000007291a000 CR4: 00000000003526f0 Call Trace: usb_stor_msg_common+0x27c/0x4b0 drivers/usb/storage/transport.c:143 usb_stor_bulk_transfer_buf+0x151/0x2a0 drivers/usb/storage/transport.c:395 ene_send_scsi_cmd+0x10d/0x5f0 drivers/usb/storage/ene_ub6250.c:502 ene_get_card_type drivers/usb/storage/ene_ub6250.c:1843 [inline] ene_init+0x14f/0x380 drivers/usb/storage/ene_ub6250.c:2197 ene_transport+0x39b6/0x4660 drivers/usb/storage/ene_ub6250.c:2310 usb_stor_invoke_transport+0x10a/0x19c0 drivers/usb/storage/transport.c:611 usb_stor_control_thread+0x450/0x8e0 drivers/usb/storage/usb.c:462 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 ---------------- Code disassembly (best guess): 0: 89 f0 mov %esi,%eax 2: 48 c1 e8 03 shr $0x3,%rax 6: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) b: 74 08 je 0x15 d: 4c 89 f7 mov %r14,%rdi 10: e8 87 b4 1f fb call 0xfb1fb49c 15: 49 83 3e 00 cmpq $0x0,(%r14) 19: 74 40 je 0x5b 1b: e8 fc 5f b9 fa call 0xfab9601c 20: 48 8d 3d 15 c4 c7 08 lea 0x8c7c415(%rip),%rdi # 0x8c7c43c 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: b8 f0 ff ff ff mov $0xfffffff0,%eax 34: eb 11 jmp 0x47 36: e8 e1 5f b9 fa call 0xfab9601c 3b: eb 05 jmp 0x42 3d: e8 .byte 0xe8 3e: da .byte 0xda 3f: 5f pop %rdi