1. 23 Jul, 2014 1 commit
  2. 22 Jul, 2014 7 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 15ba2236
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Null termination fix in dns_resolver got the pointer dereferncing
          wrong, fix from Ben Hutchings.
      
       2) ip_options_compile() has a benign but real buffer overflow when
          parsing options.  From Eric Dumazet.
      
       3) Table updates can crash in netfilter's nftables if none of the state
          flags indicate an actual change, from Pablo Neira Ayuso.
      
       4) Fix race in nf_tables dumping, also from Pablo.
      
       5) GRE-GRO support broke the forwarding path because the segmentation
          state was not fully initialized in these paths, from Jerry Chu.
      
       6) sunvnet driver leaks objects and potentially crashes on module
          unload, from Sowmini Varadhan.
      
       7) We can accidently generate the same handle for several u32
          classifier filters, fix from Cong Wang.
      
       8) Several edge case bug fixes in fragment handling in xen-netback,
          from Zoltan Kiss.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
        ipv4: fix buffer overflow in ip_options_compile()
        batman-adv: fix TT VLAN inconsistency on VLAN re-add
        batman-adv: drop QinQ claim frames in bridge loop avoidance
        dns_resolver: Null-terminate the right string
        xen-netback: Fix pointer incrementation to avoid incorrect logging
        xen-netback: Fix releasing header slot on error path
        xen-netback: Fix releasing frag_list skbs in error path
        xen-netback: Fix handling frag_list on grant op error path
        net_sched: avoid generating same handle for u32 filters
        net: huawei_cdc_ncm: add "subclass 3" devices
        net: qmi_wwan: add two Sierra Wireless/Netgear devices
        wan/x25_asy: integer overflow in x25_asy_change_mtu()
        net: ppp: fix creating PPP pass and active filters
        net/mlx4_en: cq->irq_desc wasn't set in legacy EQ's
        sunvnet: clean up objects created in vnet_new() on vnet_exit()
        r8169: Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_40
        net-gre-gro: Fix a bug that breaks the forwarding path
        netfilter: nf_tables: 64bit stats need some extra synchronization
        netfilter: nf_tables: set NLM_F_DUMP_INTR if netlink dumping is stale
        netfilter: nf_tables: safe RCU iteration on list when dumping
        ...
      15ba2236
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc · 89faa06e
      Linus Torvalds authored
      Pull sparc fix from David Miller:
       "Need to hook up the new renameat2 system call"
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
        sparc: Hook up renameat2 syscall.
      89faa06e
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide · 14867719
      Linus Torvalds authored
      Pull IDE fixes from David Miller:
       - fix interrupt registry for some Atari IDE chipsets.
       - adjust Kconfig dependencies for x86_32 specific chips.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
        ide: Fix SC1200 dependencies
        ide: Fix CS5520 and CS5530 dependencies
        m68k/atari - ide: do not register interrupt if host->get_lock is set
      14867719
    • Linus Torvalds's avatar
      Merge tag 'trace-fixes-v3.16-rc6' of... · 8dcc3be2
      Linus Torvalds authored
      Merge tag 'trace-fixes-v3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
      
      Pull trace fix from Steven Rostedt:
       "Tony Luck found that using the "uptime" trace clock that uses jiffies
        as a counter was converted to nanoseconds (silly), and after 1 hour 11
        minutes and 34 seconds, this monotonic clock would wrap, causing havoc
        with the tracing system and making the clock useless.
      
        He converted that clock to use jiffies_64 and made it into a counter
        instead of nanosecond conversions, and displayed the clock with the
        straight jiffy count, which works much better than it did in the past"
      
      * tag 'trace-fixes-v3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: Fix wraparound problems in "uptime" trace clock
      8dcc3be2
    • David S. Miller's avatar
      sparc: Hook up renameat2 syscall. · 26053926
      David S. Miller authored
      
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      26053926
    • David S. Miller's avatar
      Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge · 850717ef
      David S. Miller authored
      
      
      Antonio Quartulli says:
      
      ====================
      pull request [net]: batman-adv 20140721
      
      here you have two fixes that we have been testing for quite some time
      (this is why they arrived a bit late in the rc cycle).
      
      Patch 1) ensures that BLA packets get dropped and not forwarded to the
      mesh even if they reach batman-adv within QinQ frames. Forwarding them
      into the mesh means messing up with the TT database of other nodes which
      can generate all kind of unexpected behaviours during route computation.
      
      Patch 2) avoids a couple of race conditions triggered upon fast VLAN
      deletion-addition. Such race conditions are pretty dangerous because
      they not only create inconsistencies in the TT database of the nodes
      in the network, but such scenario is also unrecoverable (unless
      nodes are rebooted).
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      850717ef
    • Eric Dumazet's avatar
      ipv4: fix buffer overflow in ip_options_compile() · 10ec9472
      Eric Dumazet authored
      There is a benign buffer overflow in ip_options_compile spotted by
      AddressSanitizer[1] :
      
      Its benign because we always can access one extra byte in skb->head
      (because header is followed by struct skb_shared_info), and in this case
      this byte is not even used.
      
      [28504.910798] ==================================================================
      [28504.912046] AddressSanitizer: heap-buffer-overflow in ip_options_compile
      [28504.913170] Read of size 1 by thread T15843:
      [28504.914026]  [<ffffffff81802f91>] ip_options_compile+0x121/0x9c0
      [28504.915394]  [<ffffffff81804a0d>] ip_options_get_from_user+0xad/0x120
      [28504.916843]  [<ffffffff8180dedf>] do_ip_setsockopt.isra.15+0x8df/0x1630
      [28504.918175]  [<ffffffff8180ec60>] ip_setsockopt+0x30/0xa0
      [28504.919490]  [<ffffffff8181e59b>] tcp_setsockopt+0x5b/0x90
      [28504.920835]  [<ffffffff8177462f>] sock_common_setsockopt+0x5f/0x70
      [28504.922208]  [<ffffffff817729c2>] SyS_setsockopt+0xa2/0x140
      [28504.923459]  [<ffffffff818cfb69>] system_call_fastpath+0x16/0x1b
      [28504.924722]
      [28504.925106] Allocated by thread T15843:
      [28504.925815]  [<ffffffff81804995>] ip_options_get_from_user+0x35/0x120
      [28504.926884]  [<ffffffff8180dedf>] do_ip_setsockopt.isra.15+0x8df/0x1630
      [28504.927975]  [<ffffffff8180ec60>] ip_setsockopt+0x30/0xa0
      [28504.929175]  [<ffffffff8181e59b>] tcp_setsockopt+0x5b/0x90
      [28504.930400]  [<ffffffff8177462f>] sock_common_setsockopt+0x5f/0x70
      [28504.931677]  [<ffffffff817729c2>] SyS_setsockopt+0xa2/0x140
      [28504.932851]  [<ffffffff818cfb69>] system_call_fastpath+0x16/0x1b
      [28504.934018]
      [28504.934377] The buggy address ffff880026382828 is located 0 bytes to the right
      [28504.934377]  of 40-byte region [ffff880026382800, ffff880026382828)
      [28504.937144]
      [28504.937474] Memory state around the buggy address:
      [28504.938430]  ffff880026382300: ........ rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.939884]  ffff880026382400: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.941294]  ffff880026382500: .....rrr rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.942504]  ffff880026382600: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.943483]  ffff880026382700: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.944511] >ffff880026382800: .....rrr rrrrrrrr rrrrrrrr rrrrrrrr
      [28504.945573]                         ^
      [28504.946277]  ffff880026382900: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28505.094949]  ffff880026382a00: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28505.096114]  ffff880026382b00: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28505.097116]  ffff880026382c00: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28505.098472]  ffff880026382d00: ffffffff rrrrrrrr rrrrrrrr rrrrrrrr
      [28505.099804] Legend:
      [28505.100269]  f - 8 freed bytes
      [28505.100884]  r - 8 redzone bytes
      [28505.101649]  . - 8 allocated bytes
      [28505.102406]  x=1..7 - x allocated bytes + (8-x) redzone bytes
      [28505.103637] ==================================================================
      
      [1] https://code.google.com/p/address-sanitizer/wiki/AddressSanitizerForKernel
      
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      10ec9472
  3. 21 Jul, 2014 24 commits
  4. 20 Jul, 2014 4 commits
  5. 19 Jul, 2014 4 commits
    • Eric Sandeen's avatar
      btrfs: test for valid bdev before kobj removal in btrfs_rm_device · 0bfaa9c5
      Eric Sandeen authored
      commit 99994cde
      
       btrfs: dev delete should remove sysfs entry
      added a btrfs_kobj_rm_device, which dereferences device->bdev...
      right after we check whether device->bdev might be NULL.
      
      I don't honestly know if it's possible to have a NULL device->bdev
      here, but assuming that it is (given the test), we need to move
      the kobject removal to be under that test.
      
      (Coverity spotted this)
      Signed-off-by: default avatarEric Sandeen <sandeen@redhat.com>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      0bfaa9c5
    • Liu Bo's avatar
      Btrfs: fix abnormal long waiting in fsync · 98ce2ded
      Liu Bo authored
      xfstests generic/127 detected this problem.
      
      With commit 7fc34a62
      
      , now fsync will only flush
      data within the passed range.  This is the cause of the above problem,
      -- btrfs's fsync has a stage called 'sync log' which will wait for all the
      ordered extents it've recorded to finish.
      
      In xfstests/generic/127, with mixed operations such as truncate, fallocate,
      punch hole, and mapwrite, we get some pre-allocated extents, and mapwrite will
      mmap, and then msync.  And I find that msync will wait for quite a long time
      (about 20s in my case), thanks to ftrace, it turns out that the previous
      fallocate calls 'btrfs_wait_ordered_range()' to flush dirty pages, but as the
      range of dirty pages may be larger than 'btrfs_wait_ordered_range()' wants,
      there can be some ordered extents created but not getting corresponding pages
      flushed, then they're left in memory until we fsync which runs into the
      stage 'sync log', and fsync will just wait for the system writeback thread
      to flush those pages and get ordered extents finished, so the latency is
      inevitable.
      
      This adds a flush similar to btrfs_start_ordered_extent() in
      btrfs_wait_logged_extents() to fix that.
      Reviewed-by: default avatarMiao Xie <miaox@cn.fujitsu.com>
      Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
      Signed-off-by: default avatarChris Mason <clm@fb.com>
      98ce2ded
    • Linus Torvalds's avatar
      Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d0571909
      Linus Torvalds authored
      Pull locking fixes from Thomas Gleixner:
       "The locking department delivers:
      
         - A rather large and intrusive bundle of fixes to address serious
           performance regressions introduced by the new rwsem / mcs
           technology.  Simpler solutions have been discussed, but they would
           have been ugly bandaids with more risk than doing the right thing.
      
         - Make the rwsem spin on owner technology opt-in for architectures
           and enable it only on the known to work ones.
      
         - A few fixes to the lockdep userspace library"
      
      * 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        locking/rwsem: Add CONFIG_RWSEM_SPIN_ON_OWNER
        locking/mutex: Disable optimistic spinning on some architectures
        locking/rwsem: Reduce the size of struct rw_semaphore
        locking/rwsem: Rename 'activity' to 'count'
        locking/spinlocks/mcs: Micro-optimize osq_unlock()
        locking/spinlocks/mcs: Introduce and use init macro and function for osq locks
        locking/spinlocks/mcs: Convert osq lock to atomic_t to reduce overhead
        locking/spinlocks/mcs: Rename optimistic_spin_queue() to optimistic_spin_node()
        locking/rwsem: Allow conservative optimistic spinning when readers have lock
        tools/liblockdep: Account for bitfield changes in lockdeps lock_acquire
        tools/liblockdep: Remove debug print left over from development
        tools/liblockdep: Fix comparison of a boolean value with a value of 2
      d0571909
    • Linus Torvalds's avatar
      Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · d1743b81
      Linus Torvalds authored
      Pull scheduler fix from Thomas Gleixner:
       "Prevent a possible divide by zero in the debugging code"
      
      * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        sched: Fix possible divide by zero in avg_atom() calculation
      d1743b81