binder: 21700:21702 ioctl c0306201 20000140 returned -11 vhci_hcd: invalid port number 76 ================================================================== BUG: KASAN: use-after-free in vhci_hub_control+0x1b6d/0x1be0 drivers/usb/usbip/vhci_hcd.c:441 Read of size 4 at addr ffff8801ce2ac4bc by task syz-executor3/21704 CPU: 0 PID: 21704 Comm: syz-executor3 Not tainted 4.19.0-rc7+ #279 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113 print_address_description.cold.8+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432 vhci_hub_control+0x1b6d/0x1be0 drivers/usb/usbip/vhci_hcd.c:441 rh_call_control drivers/usb/core/hcd.c:679 [inline] rh_urb_enqueue drivers/usb/core/hcd.c:838 [inline] usb_hcd_submit_urb+0x17bb/0x20a0 drivers/usb/core/hcd.c:1651 usb_submit_urb+0x893/0x14e0 drivers/usb/core/urb.c:570 usb_start_wait_urb+0x13d/0x370 drivers/usb/core/message.c:57 usb_internal_control_msg drivers/usb/core/message.c:101 [inline] usb_control_msg+0x332/0x4e0 drivers/usb/core/message.c:152 proc_control+0x99b/0xef0 drivers/usb/core/devio.c:1106 usbdev_do_ioctl+0x1eb8/0x3b50 drivers/usb/core/devio.c:2412 usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2569 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: 0033:0x457519 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 RSP: 002b:00007f1cd28cec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457519 RDX: 0000000020000000 RSI: 00000000c0185500 RDI: 0000000000000004 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1cd28cf6d4 R13: 00000000004bf65f R14: 00000000004cf538 R15: 00000000ffffffff Allocated by task 3077: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:490 kmem_cache_alloc+0x12e/0x730 mm/slab.c:3554 mempool_alloc_slab+0x44/0x60 mm/mempool.c:505 mempool_alloc+0x193/0x4a0 mm/mempool.c:385 bio_alloc_bioset+0x3a8/0x700 block/bio.c:489 bio_alloc include/linux/bio.h:437 [inline] submit_bh_wbc+0x14b/0x790 fs/buffer.c:3061 submit_bh+0x28/0x30 fs/buffer.c:3093 jbd2_journal_commit_transaction+0x26d9/0x89f8 fs/jbd2/commit.c:711 kjournald2+0x26d/0xb30 fs/jbd2/journal.c:229 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 Freed by task 18483: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kmem_cache_free+0x83/0x290 mm/slab.c:3756 mempool_free_slab+0x1d/0x30 mm/mempool.c:512 mempool_free+0xed/0x370 mm/mempool.c:494 bio_free+0xf8/0x150 block/bio.c:267 bio_put+0x187/0x200 block/bio.c:561 end_bio_bh_io_sync+0xfb/0x140 fs/buffer.c:2981 bio_endio+0x5d2/0xb80 block/bio.c:1774 req_bio_endio block/blk-core.c:277 [inline] blk_update_request+0x3bd/0xcc0 block/blk-core.c:3102 scsi_end_request+0xde/0x860 drivers/scsi/scsi_lib.c:673 scsi_io_completion+0x2ce/0x1ca0 drivers/scsi/scsi_lib.c:1093 scsi_finish_command+0x579/0x970 drivers/scsi/scsi.c:248 scsi_softirq_done+0x465/0x520 drivers/scsi/scsi_lib.c:1737 __blk_mq_complete_request block/blk-mq.c:583 [inline] blk_mq_complete_request+0x3ba/0x680 block/blk-mq.c:620 scsi_mq_done+0x10d/0x460 drivers/scsi/scsi_lib.c:2048 virtscsi_complete_cmd+0x573/0x740 drivers/scsi/virtio_scsi.c:207 virtscsi_vq_done+0xcb/0x180 drivers/scsi/virtio_scsi.c:223 virtscsi_req_done+0xa7/0xd0 drivers/scsi/virtio_scsi.c:238 vring_interrupt+0x128/0x170 drivers/virtio/virtio_ring.c:950 __handle_irq_event_percpu+0x1e6/0xb00 kernel/irq/handle.c:149 handle_irq_event_percpu+0xa0/0x1d0 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206 handle_edge_irq+0x227/0x880 kernel/irq/chip.c:791 generic_handle_irq_desc include/linux/irqdesc.h:154 [inline] handle_irq+0x252/0x3d8 arch/x86/kernel/irq_64.c:78 do_IRQ+0x98/0x1c0 arch/x86/kernel/irq.c:246 The buggy address belongs to the object at ffff8801ce2ac400 which belongs to the cache bio-0 of size 216 The buggy address is located 188 bytes inside of 216-byte region [ffff8801ce2ac400, ffff8801ce2ac4d8) The buggy address belongs to the page: page:ffffea000738ab00 count:1 mapcount:0 mapping:ffff8801d7f923c0 index:0xffff8801ce2ace00 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea0006f5dc88 ffffea000734d548 ffff8801d7f923c0 raw: ffff8801ce2ace00 ffff8801ce2ac040 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801ce2ac380: fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801ce2ac400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8801ce2ac480: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc ^ ffff8801ce2ac500: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb ffff8801ce2ac580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================