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linux-stable/net/mptcp
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Tim Gardner 29211e7db2 mptcp: Avoid NULL dereference in mptcp_getsockopt_subflow_addrs() 
Coverity complains of a possible NULL dereference in
mptcp_getsockopt_subflow_addrs():

 861       } else if (sk->sk_family == AF_INET6) {
    	3. returned_null: inet6_sk returns NULL. [show details]
    	4. var_assigned: Assigning: np = NULL return value from inet6_sk.
 862                const struct ipv6_pinfo *np = inet6_sk(sk);

Fix this by checking for NULL.

Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/231
Fixes: c11c5906bc ("mptcp: add MPTCP_SUBFLOW_ADDRS getsockopt support")
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
[mjm: Added WARN_ON_ONCE() to the unexpected case]
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-16 08:46:08 +01:00
..
crypto.c kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
crypto_test.c mptcp: move crypto test to KUNIT 2020-06-26 16:21:39 -07:00
ctrl.c mptcp: faster active backup recovery 2021-08-14 11:37:25 +01:00
diag.c mptcp: allow dumping subflow context to userspace 2020-03-29 22:14:48 -07:00
Kconfig kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
Makefile kunit: mptcp: adhere to KUNIT formatting standard 2021-04-16 17:10:40 -07:00
mib.c mptcp: use batch snmp operations in mptcp_seq_show() 2021-09-30 14:17:10 +01:00
mib.h mptcp: add the mibs for MP_FAIL 2021-08-25 11:02:35 +01:00
mptcp_diag.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-09-30 14:49:21 -07:00
options.c mptcp: use OPTIONS_MPTCP_MPC 2021-09-25 11:36:51 +01:00
pm.c mptcp: MP_FAIL suboption receiving 2021-08-25 11:02:34 +01:00
pm_netlink.c mptcp: allow changing the 'backup' bit when no sockets are open 2021-09-24 10:51:36 +01:00
protocol.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-10-14 16:50:14 -07:00
protocol.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-09-30 14:49:21 -07:00
sockopt.c mptcp: Avoid NULL dereference in mptcp_getsockopt_subflow_addrs() 2021-10-16 08:46:08 +01:00
subflow.c mptcp: don't return sockets in foreign netns 2021-09-24 10:51:36 +01:00
syncookies.c mptcp: don't return sockets in foreign netns 2021-09-24 10:51:36 +01:00
token.c mptcp: don't return sockets in foreign netns 2021-09-24 10:51:36 +01:00
token_test.c mptcp: don't return sockets in foreign netns 2021-09-24 10:51:36 +01:00