Precise update to 3.2.48 stable release

[Brad Figg]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from Linus' tree or in a minimally
       backported form of that patch. The 3.2.48 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches are in the 3.2.48 stable release:
            * Linux 3.2.48
            * l2tp: Fix sendmsg() return value
            * l2tp: Fix PPP header erasure and memory leak
            * packet: packet_getname_spkt: make sure string is always 0-terminated
            * net: sctp: fix NULL pointer dereference in socket destruction
            * ipv6: assign rt6_info to inet6_ifaddr in init_loopback
            * net: force a reload of first item in hlist_nulls_for_each_entry_rcu
            * net: Block MSG_CMSG_COMPAT in send(m)msg and recv(m)msg
            * ip_tunnel: fix kernel panic with icmp_dest_unreach
            * tcp: xps: fix reordering issues
            * r8169: fix 8168evl frame padding.
            * netlabel: improve domain mapping validation
            * ipv6: fix possible crashes in ip6_cork_release()
            * gianfar: add missing iounmap() on error in gianfar_ptp_probe()
            * tcp: fix tcp_md5_hash_skb_data()
            * virtio-blk: Call revalidate_disk() upon online disk resize
            * x86/efi: Fix dummy variable buffer allocation
            * Modify UEFI anti-bricking code
            * USB: serial: ti_usb_3410_5052: new device id for Abbot strip port cable
            * x86: fix build error and kconfig for ia32_emulation and binfmt
            * KVM: x86: remove vcpu's CPL check in host-invoked XCR set
            * ARM: 7772/1: Fix missing flush_kernel_dcache_page() for noMMU
            * ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_page
            * ALSA: usb-audio: Fix invalid volume resolution for Logitech HD Webcam c310
            * ALSA: usb-audio: work around Android accessory firmware bug
            * tilepro: work around module link error with gcc 4.7

[Colin Watson (cjwatson)]

Fixed long ago, but there was a typo in the changelog so this bug didn't get closed.