| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 267/312] rtnl: reset calcit fptr in rtnl_unregister() | Date | Fri, 8 May 2020 14:34:18 +0200 |
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From: Mathias Krause <minipli@googlemail.com>
commit f567e950bf51290755a2539ff2aaef4c26f735d3 upstream.
To avoid having dangling function pointers left behind, reset calcit in rtnl_unregister(), too.
This is no issue so far, as only the rtnl core registers a netlink handler with a calcit hook which won't be unregistered, but may become one if new code makes use of the calcit hook.
Fixes: c7ac8679bec9 ("rtnetlink: Compute and store minimum ifinfo...") Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/core/rtnetlink.c | 1 + 1 file changed, 1 insertion(+)
--- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -253,6 +253,7 @@ int rtnl_unregister(int protocol, int ms rtnl_msg_handlers[protocol][msgindex].doit = NULL; rtnl_msg_handlers[protocol][msgindex].dumpit = NULL; + rtnl_msg_handlers[protocol][msgindex].calcit = NULL; return 0; }
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