We've had two reports of this use after free in Fedora now recently.. general protection fault: 0000 [#1] SMP CPU 0 Modules linked in: cdc_ether usbnet mii cdc_wdm cdc_acm fuse ip6table_filter ip6_tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM lockd iptable_mangle sunrpc bridge stp llc be2iscsi iscsi_boot_sysfs bnx2i cnic uio cxgb4i cxgb4 cxgb3i cxgb3 mdio libcxgbi ib_iser rdma_cm ib_addr iw_cm ib_cm ib_sa ib_mad ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi arc4 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core videodev v4l2_compat_ioctl32 media microcode iwlwifi i2c_i801 snd_hda_codec_conexant snd_hda_intel mac80211 snd_hda_codec snd_hwdep iTCO_wdt iTCO_vendor_support snd_pcm cfg80211 snd_page_alloc snd_timer e1000e thinkpad_acpi snd soundcore rfkill vhost_net tun macvtap macvlan kvm_intel kvm uinput xts gf128mul dm_crypt sdhci_pci sdhci mmc_core wmi i915 video i2c_algo_bit drm_kms_helper drm i2c_core [last unloaded: scsi_wait_scan] Pid: 632, comm: NetworkManager Not tainted 3.3.0-0.rc7.git0.3.fc17.x86_64 #1 LENOVO 2808D9G/2808D9G RIP: 0010:[<ffffffff8131f671>] [<ffffffff8131f671>] kobject_put+0x11/0x60 RSP: 0018:ffff88021424d4e8 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 6b6b6b6b6b6b6c03 RCX: 0000000000000006 RDX: 0000000000000990 RSI: ffff8802165108d0 RDI: 6b6b6b6b6b6b6c03 RBP: ffff88021424d4f8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8801be9eb0c0 R13: 00000000ffffff98 R14: ffff8801d88e4010 R15: 000000000000002f FS: 00007fde3f65c840(0000) GS:ffff880232e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe21c41000 CR3: 00000002167ed000 CR4: 00000000000406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process NetworkManager (pid: 632, threadinfo ffff88021424c000, task ffff880216510000) Stack: ffff88021424d4f8 0000000000000000 ffff88021424d508 ffffffff8140d9f7 ffff88021424d518 ffffffff8147e78a ffff88021424d548 ffffffff81487ef0 ffff88021424d538 ffff8801bbfbf3c0 ffff8801d88e4028 ffff8801be9eb0c0 Call Trace: [<ffffffff8140d9f7>] put_device+0x17/0x20 [<ffffffff8147e78a>] usb_put_dev+0x1a/0x20 [<ffffffff81487ef0>] usb_hcd_unlink_urb+0x70/0x100 [<ffffffff814889f6>] usb_unlink_urb+0x26/0x50 [<ffffffffa06c68bb>] unlink_urbs.isra.15+0x7b/0xd0 [usbnet] [<ffffffffa06c6a82>] usbnet_terminate_urbs+0x172/0x290 [usbnet] [<ffffffff8169aedd>] ? __mutex_unlock_slowpath+0xdd/0x180 [<ffffffff8109c2b0>] ? try_to_wake_up+0x340/0x340 [<ffffffff8108b0c7>] ? add_wait_queue+0x27/0x60 [<ffffffffa06c89f8>] usbnet_stop+0x108/0x1a0 [usbnet] [<ffffffff81559f1d>] __dev_close_many+0x9d/0xf0 [<ffffffff81559fab>] __dev_close+0x3b/0x60 [<ffffffff81563af1>] __dev_change_flags+0xa1/0x180 [<ffffffff81563c88>] dev_change_flags+0x28/0x70 [<ffffffff8157261a>] do_setlink+0x34a/0x9d0 [<ffffffff8133e881>] ? nla_parse+0x31/0xe0 [<ffffffff812bfe5e>] ? avc_has_perm_noaudit+0x4e/0x530 [<ffffffff815736ae>] rtnl_newlink+0x37e/0x560 [<ffffffff812c0d19>] ? selinux_capable+0x39/0x50 [<ffffffff8169a100>] ? mutex_lock_nested+0x270/0x3a0 [<ffffffff812bd158>] ? security_capable+0x18/0x20 [<ffffffff81572f04>] rtnetlink_rcv_msg+0x114/0x2e0 [<ffffffff815707d7>] ? rtnl_lock+0x17/0x20 [<ffffffff81572df0>] ? __rtnl_unlock+0x20/0x20 [<ffffffff8158f291>] netlink_rcv_skb+0xa1/0xb0 [<ffffffff81570805>] rtnetlink_rcv+0x25/0x40 [<ffffffff8158ebdd>] netlink_unicast+0x19d/0x1f0 [<ffffffff8158ef0b>] netlink_sendmsg+0x2db/0x360 [<ffffffff8154b6fd>] ? sock_update_netprioidx+0x6d/0x250 [<ffffffff81544d58>] sock_sendmsg+0xf8/0x130 [<ffffffff810cc45f>] ? lock_release_non_nested+0x2ef/0x330 [<ffffffff81174105>] ? might_fault+0xa5/0xb0 [<ffffffff811740bc>] ? might_fault+0x5c/0xb0 [<ffffffff815542c6>] ? verify_iovec+0x56/0xd0 [<ffffffff8154521e>] __sys_sendmsg+0x42e/0x440 [<ffffffff810210f9>] ? sched_clock+0x9/0x10 [<ffffffff810a2a35>] ? sched_clock_local+0x25/0xa0 [<ffffffff810a2be8>] ? sched_clock_cpu+0xa8/0x120 [<ffffffff810c706d>] ? trace_hardirqs_off+0xd/0x10 [<ffffffff810a2ccf>] ? local_clock+0x6f/0x80 [<ffffffff811bd2e0>] ? fget_light+0xf0/0x4a0 [<ffffffff811bd252>] ? fget_light+0x62/0x4a0 [<ffffffff811bde14>] ? fput+0x1e4/0x280 [<ffffffff81547ce9>] sys_sendmsg+0x49/0x90 [<ffffffff816a6b69>] system_call_fastpath+0x16/0x1b Code: 01 00 e9 10 ff ff ff 0f 1f 00 55 48 83 ef 38 48 89 e5 e8 43 fe ff ff 5d c3 90 55 48 89 e5 53 48 89 fb 48 83 ec 08 48 85 ff 74 1a <f6> 47 3c 01 74 21 f0 83 6b 38 01 0f 94 c0 84 c0 74 08 48 89 df RIP [<ffffffff8131f671>] kobject_put+0x11/0x60 RSP <ffff88021424d4e8> -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
