1. 02 Nov, 2011 3 commits
    • Stephen Rothwell's avatar
      net: fix typo in drivers/net/ethernet/xilinx/ll_temac_main.c · 2edcd4ca
      Stephen Rothwell authored
      Commit 9e903e08 ("net: add skb frag size accessors") used frag_size
      instead of skb_frag_size in this file.
      
      Fixes this build error:
      
      drivers/net/ethernet/xilinx/ll_temac_main.c: In function 'temac_start_xmit':
      drivers/net/ethernet/xilinx/ll_temac_main.c:717:3: error: implicit declaration of function 'frag_size' [-Werror=implicit-function-declaration]
      Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      2edcd4ca
    • Eric Dumazet's avatar
      udp: fix a race in encap_rcv handling · 0ad92ad0
      Eric Dumazet authored
      udp_queue_rcv_skb() has a possible race in encap_rcv handling, since
      this pointer can be changed anytime.
      
      We should use ACCESS_ONCE() to close the race.
      Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      0ad92ad0
    • Dave Jones's avatar
      x25: Fix NULL dereference in x25_recvmsg · 501e89d3
      Dave Jones authored
      commit cb101ed2 in 3.0 introduced a bug in x25_recvmsg()
      When passed bogus junk from userspace, x25->neighbour can be NULL,
      as shown in this oops..
      
      BUG: unable to handle kernel NULL pointer dereference at 000000000000001c
      IP: [<ffffffffa05482bd>] x25_recvmsg+0x4d/0x280 [x25]
      PGD 1015f3067 PUD 105072067 PMD 0
      Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
      CPU 0
      Pid: 27928, comm: iknowthis Not tainted 3.1.0+ #2 Gigabyte Technology Co., Ltd. GA-MA78GM-S2H/GA-MA78GM-S2H
      RIP: 0010:[<ffffffffa05482bd>]  [<ffffffffa05482bd>] x25_recvmsg+0x4d/0x280 [x25]
      RSP: 0018:ffff88010c0b7cc8  EFLAGS: 00010282
      RAX: 0000000000000000 RBX: ffff88010c0b7d78 RCX: 0000000000000c02
      RDX: ffff88010c0b7d78 RSI: ffff88011c93dc00 RDI: ffff880103f667b0
      RBP: ffff88010c0b7d18 R08: 0000000000000000 R09: 0000000000000000
      R10: 0000000000000000 R11: 0000000000000000 R12: ffff880103f667b0
      R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
      FS:  00007f479ce7f700(0000) GS:ffff88012a600000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
      CR2: 000000000000001c CR3: 000000010529e000 CR4: 00000000000006f0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
      Process iknowthis (pid: 27928, threadinfo ffff88010c0b6000, task ffff880103faa4f0)
      Stack:
       0000000000000c02 0000000000000c02 ffff88010c0b7d18 ffffff958153cb37
       ffffffff8153cb60 0000000000000c02 ffff88011c93dc00 0000000000000000
       0000000000000c02 ffff88010c0b7e10 ffff88010c0b7de8 ffffffff815372c2
      Call Trace:
       [<ffffffff8153cb60>] ? sock_update_classid+0xb0/0x180
       [<ffffffff815372c2>] sock_aio_read.part.10+0x142/0x150
       [<ffffffff812d6752>] ? inode_has_perm+0x62/0xa0
       [<ffffffff815372fd>] sock_aio_read+0x2d/0x40
       [<ffffffff811b05e2>] do_sync_read+0xd2/0x110
       [<ffffffff812d3796>] ? security_file_permission+0x96/0xb0
       [<ffffffff811b0a91>] ? rw_verify_area+0x61/0x100
       [<ffffffff811b103d>] vfs_read+0x16d/0x180
       [<ffffffff811b109d>] sys_read+0x4d/0x90
       [<ffffffff81657282>] system_call_fastpath+0x16/0x1b
      Code: 8b 66 20 4c 8b 32 48 89 d3 48 89 4d b8 45 89 c7 c7 45 cc 95 ff ff ff 4d 85 e4 0f 84 ed 01 00 00 49 8b 84 24 18 05 00 00 4c 89 e7
       78 1c 01 45 19 ed 31 f6 e8 d5 37 ff e0 41 0f b6 44 24 0e 41
      Signed-off-by: default avatarDave Jones <davej@redhat.com>
      Acked-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      501e89d3
  2. 01 Nov, 2011 37 commits