Eric Dumazet f77d602124 ipv6: do not clear pinet6 field ... We have seen multiple NULL dereferences in __inet6_lookup_established() After analysis, I found that inet6_sk() could be NULL while the check for sk_family == AF_INET6 was true. Bug was added in linux-2.6.29 when RCU lookups were introduced in UDP and TCP stacks. Once an IPv6 socket, using SLAB_DESTROY_BY_RCU is inserted in a hash table, we no longer can clear pinet6 field. This patch extends logic used in commit fcbdf09d96 ("net: fix nulls list corruptions in sk_prot_alloc") TCP/UDP/UDPLite IPv6 protocols provide their own .clear_sk() method to make sure we do not clear pinet6 field. At socket clone phase, we do not really care, as cloning the parent (non NULL) pinet6 is not adding a fatal race. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2013-05-11 16:26:38 -07:00
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acpi
asm-generic	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-05-05 13:23:27 -07:00
clocksource	ARM: late Exynos multiplatform changes	2013-05-07 11:28:42 -07:00
crypto
drm	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2013-05-02 19:40:34 -07:00
dt-bindings
keys
linux	net/mlx4: Strengthen VLAN tags/priorities enforcement in VST mode	2013-05-11 16:12:44 -07:00
math-emu
media	Merge branch 'topic/omap3isp' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2013-05-01 09:57:04 -07:00
memory
misc
net	ipv6: do not clear pinet6 field	2013-05-11 16:26:38 -07:00
pcmcia
ras
rdma
rxrpc
scsi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-05-01 17:51:54 -07:00
sound	sound updates for v3.10-rc1	2013-05-03 09:10:23 -07:00
target
trace	f2fs updates for v3.10	2013-05-08 15:11:48 -07:00
uapi	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-05-09 13:07:40 -07:00
video	Merge branch 'late/clksrc' into late/cleanup	2013-05-06 23:43:45 +02:00
xen	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2013-05-01 14:08:52 -07:00
Kbuild