usb usb9: usbfs: process 14300 (syz-executor.0) did not claim interface 0 before use ================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:377 [inline] BUG: KASAN: slab-out-of-bounds in usb_hcd_poll_rh_status+0x387/0x6f0 drivers/usb/core/hcd.c:771 Write of size 2 at addr ffff88802fdd1980 by task syz-executor.3/8114 CPU: 0 PID: 8114 Comm: syz-executor.3 Not tainted 4.19.196-syzkaller #0 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+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report+0x8f/0xa0 mm/kasan/report.c:412 memcpy+0x35/0x50 mm/kasan/kasan.c:303 memcpy include/linux/string.h:377 [inline] usb_hcd_poll_rh_status+0x387/0x6f0 drivers/usb/core/hcd.c:771 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:unwind_next_frame+0xf3a/0x1400 arch/x86/kernel/unwind_orc.c:555 Code: 48 be 00 00 00 00 00 fc ff df 49 8d 56 40 48 89 f8 48 c1 e8 03 44 0f b6 04 30 49 8d 47 03 49 89 c1 49 c1 e9 03 41 0f b6 34 31 <49> 89 f9 41 83 e1 07 45 38 c8 41 0f 9e c1 45 84 c0 41 0f 95 c0 45 RSP: 0018:ffff88808f1ef5f8 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8b99c443 RBX: 1ffff11011e3dec8 RCX: ffffffff8b99c445 RDX: ffff88808f1ef768 RSI: 0000000000000000 RDI: ffffffff8b99c442 RBP: 0000000000000001 R08: 0000000000000000 R09: 1ffffffff1733888 R10: ffff88808f1ef787 R11: 0000000000074071 R12: ffff88808f1efa10 R13: ffff88808f1ef75d R14: ffff88808f1ef728 R15: ffffffff8b99c440 __save_stack_trace+0xd6/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node_trace+0x13c/0x3b0 mm/slab.c:3666 kmalloc_node include/linux/slab.h:553 [inline] alloc_vmap_area+0x12e/0x980 mm/vmalloc.c:420 __get_vm_area_node+0x17b/0x3a0 mm/vmalloc.c:1401 __vmalloc_node_range mm/vmalloc.c:1748 [inline] __vmalloc_node mm/vmalloc.c:1804 [inline] __vmalloc_node_flags mm/vmalloc.c:1818 [inline] vzalloc+0xe6/0x1a0 mm/vmalloc.c:1857 do_arpt_get_ctl+0x49b/0x7d0 net/ipv4/netfilter/arp_tables.c:658 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122 ip_getsockopt net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3629 __sys_getsockopt+0x135/0x210 net/socket.c:2048 __do_sys_getsockopt net/socket.c:2059 [inline] __se_sys_getsockopt net/socket.c:2056 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:2056 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x467bea Code: 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 37 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd117e1ee8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 00007ffd117e1efc RCX: 0000000000467bea RDX: 0000000000000061 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007ffd117e1efc R09: 00007ffd117e1f60 R10: 00007ffd117e1f50 R11: 0000000000000212 R12: 00007ffd117e1f50 R13: 00000000002149ae R14: 0000000000000000 R15: 00007ffd117e2670 Allocated by task 14300: __do_kmalloc mm/slab.c:3727 [inline] __kmalloc+0x15a/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] proc_do_submiturb+0x2d08/0x3af0 drivers/usb/core/devio.c:1673 proc_submiturb drivers/usb/core/devio.c:1827 [inline] usbdev_do_ioctl+0x773/0x3030 drivers/usb/core/devio.c:2481 usbdev_ioctl+0x21/0x30 drivers/usb/core/devio.c:2585 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 8110: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 kvfree+0x59/0x60 mm/util.c:452 __vunmap+0x2a5/0x3f0 mm/vmalloc.c:1534 vfree+0x65/0x100 mm/vmalloc.c:1598 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:870 [inline] get_entries net/ipv4/netfilter/ip_tables.c:1027 [inline] do_ipt_get_ctl+0x6e8/0x8e0 net/ipv4/netfilter/ip_tables.c:1705 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x72/0xd0 net/netfilter/nf_sockopt.c:122 ip_getsockopt net/ipv4/ip_sockglue.c:1574 [inline] ip_getsockopt+0x167/0x1c0 net/ipv4/ip_sockglue.c:1554 tcp_getsockopt+0x86/0xd0 net/ipv4/tcp.c:3629 __sys_getsockopt+0x135/0x210 net/socket.c:2048 __do_sys_getsockopt net/socket.c:2059 [inline] __se_sys_getsockopt net/socket.c:2056 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:2056 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff88802fdd1980 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 0 bytes inside of 32-byte region [ffff88802fdd1980, ffff88802fdd19a0) The buggy address belongs to the page: page:ffffea0000bf7440 count:1 mapcount:0 mapping:ffff88813bff01c0 index:0xffff88802fdd1fc1 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea0001195dc8 ffffea0000cd1b48 ffff88813bff01c0 raw: ffff88802fdd1fc1 ffff88802fdd1000 000000010000003f 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88802fdd1880: fb fb fb fb fc fc fc fc 05 fc fc fc fc fc fc fc ffff88802fdd1900: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc >ffff88802fdd1980: 01 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc ^ ffff88802fdd1a00: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc ffff88802fdd1a80: 00 02 fc fc fc fc fc fc 00 02 fc fc fc fc fc fc ==================================================================