| From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 138/219] net/netlink_compat: Fix a missing check of nla_parse_nested | Date | Fri, 22 Nov 2019 00:47:50 -0500 |
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From: Aditya Pakki <pakki001@umn.edu>
[ Upstream commit 89dfd0083751d00d5d7ead36f6d8b045bf89c5e1 ]
In tipc_nl_compat_sk_dump(), if nla_parse_nested() fails, it could return an error. To be consistent with other invocations of the function call, on error, the fix passes the return value upstream.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/tipc/netlink_compat.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index 318c541970ecd..6494d6b5e1b24 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -1030,8 +1030,11 @@ static int tipc_nl_compat_sk_dump(struct tipc_nl_compat_msg *msg, u32 node; struct nlattr *con[TIPC_NLA_CON_MAX + 1]; - nla_parse_nested(con, TIPC_NLA_CON_MAX, - sock[TIPC_NLA_SOCK_CON], NULL, NULL); + err = nla_parse_nested(con, TIPC_NLA_CON_MAX, + sock[TIPC_NLA_SOCK_CON], NULL, NULL); + + if (err) + return err; node = nla_get_u32(con[TIPC_NLA_CON_NODE]); tipc_tlv_sprintf(msg->rep, " connected to <%u.%u.%u:%u>", -- 2.20.1
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