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  1. 30 11月, 2011 3 次提交
    • D
      isdn: make sure strings are null terminated · 746ae30f
      由 Dan Carpenter 提交于 
      These strings come from the user.  We strcpy() them inside
cf_command() so we should check that they are NULL terminated and
return an error if not.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      746ae30f
    • P
      netlabel: Fix build problems when IPv6 is not enabled · 1281bc25
      由 Paul Moore 提交于 
      A recent fix to the the NetLabel code caused build problem with
configurations that did not have IPv6 enabled; see below:

 netlabel_kapi.c: In function 'netlbl_cfg_unlbl_map_add':
 netlabel_kapi.c:165:4:
  error: implicit declaration of function 'netlbl_af6list_add'

This patch fixes this problem by making the IPv6 specific code conditional
on the IPv6 configuration flags as we done in the rest of NetLabel and the
network stack as a whole.  We have to move some variable declarations
around as a result so things may not be quite as pretty, but at least it
builds cleanly now.

Some additional IPv6 conditionals were added to the NetLabel code as well
for the sake of consistency.
Reported-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NPaul Moore <pmoore@redhat.com>
Acked-by: NRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      1281bc25
    • X
      sctp: better integer overflow check in sctp_auth_create_key() · c89304b8
      由 Xi Wang 提交于 
      The check from commit 30c2235c is incomplete and cannot prevent
cases like key_len = 0x80000000 (INT_MAX + 1).  In that case, the
left-hand side of the check (INT_MAX - key_len), which is unsigned,
becomes 0xffffffff (UINT_MAX) and bypasses the check.

However this shouldn't be a security issue.  The function is called
from the following two code paths:

 1) setsockopt()

 2) sctp_auth_asoc_set_secret()

In case (1), sca_keylength is never going to exceed 65535 since it's
bounded by a u16 from the user API.  As such, the key length will
never overflow.

In case (2), sca_keylength is computed based on the user key (1 short)
and 2 * key_vector (3 shorts) for a total of 7 * USHRT_MAX, which still
will not overflow.

In other words, this overflow check is not really necessary.  Just
make it more correct.
Signed-off-by: NXi Wang <xi.wang@gmail.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      c89304b8
  3. 29 11月, 2011 4 次提交
  5. 28 11月, 2011 1 次提交
  7. 27 11月, 2011 11 次提交
  9. 26 11月, 2011 1 次提交
  11. 25 11月, 2011 1 次提交
  13. 24 11月, 2011 10 次提交
  15. 23 11月, 2011 7 次提交
  17. 22 11月, 2011 2 次提交
    • P
      netfilter: nf_conntrack: make event callback registration per-netns · 70e9942f
      由 Pablo Neira Ayuso 提交于 
      This patch fixes an oops that can be triggered following this recipe:

0) make sure nf_conntrack_netlink and nf_conntrack_ipv4 are loaded.
1) container is started.
2) connect to it via lxc-console.
3) generate some traffic with the container to create some conntrack
   entries in its table.
4) stop the container: you hit one oops because the conntrack table
   cleanup tries to report the destroy event to user-space but the
   per-netns nfnetlink socket has already gone (as the nfnetlink
   socket is per-netns but event callback registration is global).

To fix this situation, we make the ctnl_notifier per-netns so the
callback is registered/unregistered if the container is
created/destroyed.

Alex Bligh and Alexey Dobriyan originally proposed one small patch to
check if the nfnetlink socket is gone in nfnetlink_has_listeners,
but this is a very visited path for events, thus, it may reduce
performance and it looks a bit hackish to check for the nfnetlink
socket only to workaround this situation. As a result, I decided
to follow the bigger path choice, which seems to look nicer to me.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Reported-by: NAlex Bligh <alex@alex.org.uk>
Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
      70e9942f
    • D
      caif: fix endian conversion in cffrml_transmit() · f23aa625
      由 Dan Carpenter 提交于 
      The "tmp" variable here is used to store the result of cpu_to_le16()
so it should be an __le16 instead of an int.  We want the high bits
set and the current code works on little endian systems but not on
big endian systems.
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NSjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      f23aa625