Dmitry Safonov 09901e570c netlink: Don't shift on 64 for ngroups ... commit 91874ecf32 upstream. It's legal to have 64 groups for netlink_sock. As user-supplied nladdr->nl_groups is __u32, it's possible to subscribe only to first 32 groups. The check for correctness of .bind() userspace supplied parameter is done by applying mask made from ngroups shift. Which broke Android as they have 64 groups and the shift for mask resulted in an overflow. Fixes: 61f4b23769 ("netlink: Don't shift with UB on nlk->ngroups") Cc: "David S. Miller" <davem@davemloft.net> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Steffen Klassert <steffen.klassert@secunet.com> Cc: netdev@vger.kernel.org Cc: stable@vger.kernel.org Reported-and-Tested-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Dmitry Safonov <dima@arista.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-08-09 12:16:38 +02:00
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Kconfig	netlink: remove mmapped netlink support	2016-02-18 11:42:18 -05:00
Makefile	netlink: Diag core and basic socket info dumping (v2)	2013-03-21 12:38:03 -04:00
af_netlink.c	netlink: Don't shift on 64 for ngroups	2018-08-09 12:16:38 +02:00
af_netlink.h	af_netlink: ensure that NLMSG_DONE never fails in dumps	2017-11-24 08:37:03 +01:00
diag.c	netlink/diag: report flags for netlink sockets	2017-04-05 07:13:56 -07:00
genetlink.c	netlink: avoid a double skb free in genlmsg_mcast()	2018-03-31 18:10:41 +02:00