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  1. 22 6月, 2011 1 次提交
  3. 21 6月, 2011 1 次提交
  5. 19 6月, 2011 1 次提交
  7. 18 6月, 2011 2 次提交
    • E
      inet_diag: fix inet_diag_bc_audit() · eeb14972
      由 Eric Dumazet 提交于 
      A malicious user or buggy application can inject code and trigger an
infinite loop in inet_diag_bc_audit()

Also make sure each instruction is aligned on 4 bytes boundary, to avoid
unaligned accesses.
Reported-by: NDan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      eeb14972
    • E
      net: rfs: enable RFS before first data packet is received · 1eddcead
      由 Eric Dumazet 提交于 
      Le jeudi 16 juin 2011 à 23:38 -0400, David Miller a écrit :
> From: Ben Hutchings <bhutchings@solarflare.com>
> Date: Fri, 17 Jun 2011 00:50:46 +0100
>
> > On Wed, 2011-06-15 at 04:15 +0200, Eric Dumazet wrote:
> >> @@ -1594,6 +1594,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
> >>  			goto discard;
> >>
> >>  		if (nsk != sk) {
> >> +			sock_rps_save_rxhash(nsk, skb->rxhash);
> >>  			if (tcp_child_process(sk, nsk, skb)) {
> >>  				rsk = nsk;
> >>  				goto reset;
> >>
> >
> > I haven't tried this, but it looks reasonable to me.
> >
> > What about IPv6?  The logic in tcp_v6_do_rcv() looks very similar.
>
> Indeed ipv6 side needs the same fix.
>
> Eric please add that part and resubmit.  And in fact I might stick
> this into net-2.6 instead of net-next-2.6
>

OK, here is the net-2.6 based one then, thanks !

[PATCH v2] net: rfs: enable RFS before first data packet is received

First packet received on a passive tcp flow is not correctly RFS
steered.

One sock_rps_record_flow() call is missing in inet_accept()

But before that, we also must record rxhash when child socket is setup.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Tom Herbert <therbert@google.com>
CC: Ben Hutchings <bhutchings@solarflare.com>
CC: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: NDavid S. Miller <davem@conan.davemloft.net>
      1eddcead
  9. 16 6月, 2011 5 次提交
  11. 10 6月, 2011 1 次提交
  13. 09 6月, 2011 1 次提交
  15. 06 6月, 2011 4 次提交
  17. 02 6月, 2011 1 次提交
  19. 01 6月, 2011 1 次提交
    • C
      ip_options_compile: properly handle unaligned pointer · 48bdf072
      由 Chris Metcalf 提交于 
      The current code takes an unaligned pointer and does htonl() on it to
make it big-endian, then does a memcpy().  The problem is that the
compiler decides that since the pointer is to a __be32, it is legal
to optimize the copy into a processor word store.  However, on an
architecture that does not handled unaligned writes in kernel space,
this produces an unaligned exception fault.

The solution is to track the pointer as a "char *" (which removes a bunch
of unpleasant casts in any case), and then just use put_unaligned_be32()
to write the value to memory.
Signed-off-by: NChris Metcalf <cmetcalf@tilera.com>
Signed-off-by: NDavid S. Miller <davem@zippy.davemloft.net>
      48bdf072
  21. 28 5月, 2011 1 次提交
  23. 25 5月, 2011 1 次提交
  25. 24 5月, 2011 3 次提交
    • E
      seqlock: Get rid of SEQLOCK_UNLOCKED · c4dbe54e
      由 Eric Dumazet 提交于 
      All static seqlock should be initialized with the lockdep friendly
__SEQLOCK_UNLOCKED() macro.

Remove legacy SEQLOCK_UNLOCKED() macro.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/r/%3C1306238888.3026.31.camel%40edumazet-laptop%3ESigned-off-by: NThomas Gleixner <tglx@linutronix.de>
      c4dbe54e
    • D
      net: convert %p usage to %pK · 71338aa7
      由 Dan Rosenberg 提交于 
      The %pK format specifier is designed to hide exposed kernel pointers,
specifically via /proc interfaces.  Exposing these pointers provides an
easy target for kernel write vulnerabilities, since they reveal the
locations of writable structures containing easily triggerable function
pointers.  The behavior of %pK depends on the kptr_restrict sysctl.

If kptr_restrict is set to 0, no deviation from the standard %p behavior
occurs.  If kptr_restrict is set to 1, the default, if the current user
(intended to be a reader via seq_printf(), etc.) does not have CAP_SYSLOG
(currently in the LSM tree), kernel pointers using %pK are printed as 0's.
 If kptr_restrict is set to 2, kernel pointers using %pK are printed as
0's regardless of privileges.  Replacing with 0's was chosen over the
default "(null)", which cannot be parsed by userland %p, which expects
"(nil)".

The supporting code for kptr_restrict and %pK are currently in the -mm
tree.  This patch converts users of %p in net/ to %pK.  Cases of printing
pointers to the syslog are not covered, since this would eliminate useful
information for postmortem debugging and the reading of the syslog is
already optionally protected by the dmesg_restrict sysctl.
Signed-off-by: NDan Rosenberg <drosenberg@vsecurity.com>
Cc: James Morris <jmorris@namei.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Thomas Graf <tgraf@infradead.org>
Cc: Eugene Teo <eugeneteo@kernel.org>
Cc: Kees Cook <kees.cook@canonical.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      71338aa7
    • E
      net: ping: cleanups ping_v4_unhash() · 19a76fa9
      由 Eric Dumazet 提交于 
      net/ipv4/ping.c: In function ‘ping_v4_unhash’:
net/ipv4/ping.c:140:28: warning: variable ‘hslot’ set but not used
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: NVasiliy Kulikov <segoon@openwall.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      19a76fa9
  27. 23 5月, 2011 3 次提交
  29. 20 5月, 2011 3 次提交
  31. 19 5月, 2011 4 次提交
  33. 18 5月, 2011 2 次提交
  35. 17 5月, 2011 2 次提交
  37. 16 5月, 2011 1 次提交
  39. 15 5月, 2011 1 次提交
  41. 14 5月, 2011 1 次提交