kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN PM: Basic memory bitmaps created CPU: 1 PID: 23191 Comm: syz-executor1 Not tainted 4.19.0-rc4+ #250 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 PM: Basic memory bitmaps freed Code: 89 fb 48 83 ec 18 48 89 7d c0 89 55 d4 89 75 d0 e8 3d c3 7e fc 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 84 02 00 00 RSP: 0018:ffff8801c15974a0 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009885000 kobject: 'loop0' (00000000990ee1bb): kobject_uevent_env RDX: 0000000000000000 RSI: ffffffff850020e3 RDI: 0000000000000004 RBP: ffff8801c15974e0 R08: ffff8801ba826600 R09: ffffed00382b2eb2 R10: ffffed00382b2eb4 R11: ffff8801c15975a7 R12: 0000000000000000 R13: ffff8801ce2a62c0 R14: ffff8801c08a6a80 R15: 0000000000000000 FS: 00007fb3d6230700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 kobject: 'loop0' (00000000990ee1bb): fill_kobj_path: path = '/devices/virtual/block/loop0' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000180 CR3: 00000001c4ea9000 CR4: 00000000001426e0 Call Trace: check_ctrlrecip+0x1e6/0x320 drivers/usb/core/devio.c:828 proc_control+0x151/0xef0 drivers/usb/core/devio.c:1074 PM: Marking nosave pages: [mem 0x00000000-0x00000fff] usbdev_do_ioctl+0x1eb8/0x3b50 drivers/usb/core/devio.c:2394 PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created PM: Basic memory bitmaps freed kobject: 'loop0' (00000000990ee1bb): kobject_uevent_env kobject: 'loop0' (00000000990ee1bb): fill_kobj_path: path = '/devices/virtual/block/loop0' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] 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 PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] PM: Basic memory bitmaps created ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702 PM: Basic memory bitmaps freed __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 PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457679 Code: 1d 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] RSP: 002b:00007fb3d622fc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fb3d62306d4 RCX: 0000000000457679 RDX: 0000000020000000 RSI: 00000000c0185500 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cf508 R14: 00000000004bf7f2 R15: 0000000000000000 PM: Basic memory bitmaps created Modules linked in: ---[ end trace 6f2f827c83f02d8f ]--- PM: Basic memory bitmaps freed RIP: 0010:usb_find_alt_setting+0x38/0x310 drivers/usb/core/usb.c:231 kobject: 'loop0' (00000000990ee1bb): kobject_uevent_env Code: 89 fb 48 83 ec 18 48 89 7d c0 89 55 d4 89 75 d0 e8 3d c3 7e fc 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 84 02 00 00 kobject: 'loop0' (00000000990ee1bb): fill_kobj_path: path = '/devices/virtual/block/loop0' RSP: 0018:ffff8801c15974a0 EFLAGS: 00010247 PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90009885000 RDX: 0000000000000000 RSI: ffffffff850020e3 RDI: 0000000000000004 RBP: ffff8801c15974e0 R08: ffff8801ba826600 R09: ffffed00382b2eb2 R10: ffffed00382b2eb4 R11: ffff8801c15975a7 R12: 0000000000000000 R13: ffff8801ce2a62c0 R14: ffff8801c08a6a80 R15: 0000000000000000 FS: 00007fb3d6230700(0000) GS:ffff8801dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa5d83c4000 CR3: 00000001c4ea9000 CR4: 00000000001426e0 PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff]