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Eric Dumazet 648f0c28df net/dccp: fix use-after-free in dccp_invalid_packet 
pskb_may_pull() can reallocate skb->head, we need to reload dh pointer
in dccp_invalid_packet() or risk use after free.

Bug found by Andrey Konovalov using syzkaller.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2016-11-29 20:37:26 -05:00
..
ccids dccp: re-enable debug macro 2014-02-16 23:45:00 -05:00
Kconfig net/dccp: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:39:34 -08:00
Makefile dccp: Policy-based packet dequeueing infrastructure 2010-12-07 13:47:12 +01:00
ackvec.c dccp: drop null test before destroy functions 2015-09-15 16:49:43 -07:00
ackvec.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
ccid.c dccp: drop null test before destroy functions 2015-09-15 16:49:43 -07:00
ccid.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
dccp.h net: snmp: kill STATS_BH macros 2016-04-27 22:48:25 -04:00
diag.c sock_diag: specify info_size per inet protocol 2015-06-15 19:49:22 -07:00
feat.c dccp: kerneldoc warning fixes 2014-11-18 15:26:31 -05:00
feat.h net: dccp: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
input.c dccp: do not assume DCCP code is non preemptible 2016-05-02 17:02:25 -04:00
ipv4.c net/dccp: fix use-after-free in dccp_invalid_packet 2016-11-29 20:37:26 -05:00
ipv6.c ipv6: dccp: add missing bind_conflict to dccp_ipv6_mapped 2016-11-03 16:50:27 -04:00
ipv6.h inet: includes a sock_common in request_sock 2013-10-10 00:08:07 -04:00
minisocks.c dccp: rename DCCP_INC_STATS_BH() 2016-04-27 22:48:22 -04:00
options.c dccp: do not assume DCCP code is non preemptible 2016-05-02 17:02:25 -04:00
output.c net: Generalise wq_has_sleeper helper 2015-11-30 14:47:33 -05:00
probe.c Use 64-bit timekeeping 2015-11-01 17:01:16 -05:00
proto.c dccp: do not send reset to already closed sockets 2016-11-03 16:16:51 -04:00
qpolicy.c dccp qpolicy: Parameter checking of cmsg qpolicy parameters 2010-12-07 13:47:12 +01:00
sysctl.c dccp: make the request_retries minimum is 1 2014-05-14 15:34:16 -04:00
timer.c net: rename NET_{ADD|INC}_STATS_BH() 2016-04-27 22:48:24 -04:00