IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 0 PID: 31968 Comm: syz-executor0 Not tainted 4.19.0-rc2+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:usb_find_alt_setting+0x38/0x310 drivers/usb/core/usb.c:231 Code: 89 fb 48 83 ec 10 48 89 7d c8 89 55 d4 89 75 d0 e8 2d 93 08 fd 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 86 02 00 00 RSP: 0018:ffff8801baa974a8 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001e8f000 RDX: 0000000000000000 RSI: ffffffff84743c43 RDI: 0000000000000004 RBP: ffff8801baa974e0 R08: ffff8801797d8580 R09: ffffed0037552eb2 R10: ffffed0037552eb4 R11: ffff8801baa975a7 R12: 0000000000000000 R13: ffff8801cf7ee8c0 R14: ffff8801b943d300 R15: 0000000000000000 FS: 00007f7f9889c700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31021000 CR3: 0000000190ccf000 CR4: 00000000001406f0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: check_ctrlrecip+0x1e6/0x320 drivers/usb/core/devio.c:828 proc_control+0x151/0xef0 drivers/usb/core/devio.c:1074 usbdev_do_ioctl+0x1eb4/0x3b30 drivers/usb/core/devio.c:2394 usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2551 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 __do_sys_ioctl fs/ioctl.c:709 [inline] __se_sys_ioctl fs/ioctl.c:707 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457099 Code: fd b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f7f9889bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7f9889c6d4 RCX: 0000000000457099 RDX: 0000000020000240 RSI: 00000000c0185500 RDI: 0000000000000004 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cebc0 R14: 00000000004c503e R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace c798712aa16774a8 ]--- RIP: 0010:usb_find_alt_setting+0x38/0x310 drivers/usb/core/usb.c:231 Code: 89 fb 48 83 ec 10 48 89 7d c8 89 55 d4 89 75 d0 e8 2d 93 08 fd 48 8d 7b 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 86 02 00 00 RSP: 0018:ffff8801baa974a8 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90001e8f000 RDX: 0000000000000000 RSI: ffffffff84743c43 RDI: 0000000000000004 RBP: ffff8801baa974e0 R08: ffff8801797d8580 R09: ffffed0037552eb2 R10: ffffed0037552eb4 R11: ffff8801baa975a7 R12: 0000000000000000 R13: ffff8801cf7ee8c0 R14: ffff8801b943d300 R15: 0000000000000000 FS: 00007f7f9889c700(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31021000 CR3: 0000000190ccf000 CR4: 00000000001406f0 DR0: 000000000000b8c4 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400