usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=04fa, idProduct=2490, bcdDevice=74.f9 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? ================================================================== BUG: KASAN: use-after-free in ds_probe+0x604/0x760 drivers/w1/masters/ds2490.c:1019 Read of size 1 at addr ffff888219299c22 by task kworker/1:1/21 CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe8/0x16e lib/dump_stack.c:113 print_address_description+0x6c/0x236 mm/kasan/report.c:187 kasan_report.cold+0x1a/0x3c mm/kasan/report.c:317 ds_probe+0x604/0x760 drivers/w1/masters/ds2490.c:1019 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Allocated by task 5383: set_track mm/kasan/common.c:87 [inline] __kasan_kmalloc mm/kasan/common.c:497 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470 slab_post_alloc_hook mm/slab.h:437 [inline] slab_alloc_node mm/slub.c:2756 [inline] slab_alloc mm/slub.c:2764 [inline] __kmalloc_track_caller+0xf0/0x2c0 mm/slub.c:4342 kmemdup+0x23/0x50 mm/util.c:118 kmemdup include/linux/string.h:428 [inline] sctp_addr_wq_mgmt+0x3f7/0x790 net/sctp/protocol.c:744 sctp_inet6addr_event+0x63a/0x800 net/sctp/ipv6.c:108 notifier_call_chain+0xca/0x240 kernel/notifier.c:93 __atomic_notifier_call_chain kernel/notifier.c:183 [inline] atomic_notifier_call_chain+0x94/0x180 kernel/notifier.c:193 ipv6_add_addr+0x15db/0x1c60 net/ipv6/addrconf.c:1150 addrconf_add_linklocal+0x1db/0x390 net/ipv6/addrconf.c:3187 addrconf_addr_gen+0x352/0x3a0 net/ipv6/addrconf.c:3314 addrconf_dev_config+0x1e0/0x2b0 net/ipv6/addrconf.c:3357 addrconf_notify+0x4be/0x2340 net/ipv6/addrconf.c:3592 notifier_call_chain+0xca/0x240 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:1751 [inline] call_netdevice_notifiers net/core/dev.c:1765 [inline] __dev_notify_flags+0x126/0x2d0 net/core/dev.c:7607 dev_change_flags+0x105/0x160 net/core/dev.c:7645 do_setlink+0x15c5/0x33c0 net/core/rtnetlink.c:2486 __rtnl_newlink+0xab3/0x14b0 net/core/rtnetlink.c:3109 rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3234 rtnetlink_rcv_msg+0x45e/0xb00 net/core/rtnetlink.c:5192 netlink_rcv_skb+0x162/0x410 net/netlink/af_netlink.c:2485 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x4da/0x690 net/netlink/af_netlink.c:1336 netlink_sendmsg+0x810/0xcd0 net/netlink/af_netlink.c:1925 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xda/0x130 net/socket.c:661 __sys_sendto+0x21f/0x330 net/socket.c:1932 __do_sys_sendto net/socket.c:1944 [inline] __se_sys_sendto net/socket.c:1940 [inline] __x64_sys_sendto+0xe2/0x1b0 net/socket.c:1940 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 0: set_track mm/kasan/common.c:87 [inline] __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459 slab_free_hook mm/slub.c:1429 [inline] slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456 slab_free mm/slub.c:3003 [inline] kfree+0xce/0x290 mm/slub.c:3958 sctp_addr_wq_timeout_handler+0x2ad/0x540 net/sctp/protocol.c:673 call_timer_fn+0x161/0x5f0 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1681 [inline] __run_timers kernel/time/timer.c:1649 [inline] run_timer_softirq+0x58b/0x1400 kernel/time/timer.c:1694 __do_softirq+0x22a/0x8cd kernel/softirq.c:293 The buggy address belongs to the object at ffff888219299c00 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 34 bytes inside of 64-byte region [ffff888219299c00, ffff888219299c40) The buggy address belongs to the page: page:ffffea000864a640 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0 flags: 0x57ff00000000200(slab) raw: 057ff00000000200 dead000000000100 dead000000000200 ffff88812c3f5600 raw: 0000000000000000 00000000002a002a 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888219299b00: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 00 00 ffff888219299b80: fc fc fc fc 00 00 00 00 00 00 fc fc fc fc fc fc >ffff888219299c00: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb ^ ffff888219299c80: fb fb fb fb fc fc fc fc fb fb fb fb fb fb fb fb ffff888219299d00: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc 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