| From | Greg Kroah-Hartman <> | Subject | [PATCH 125/190] Revert "net: tipc: fix a missing check of nla_nest_start" | Date | Wed, 21 Apr 2021 15:00:00 +0200 |
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This reverts commit 4589e28db46ee4961edfd794c5bb43887d38c8e5.
Commits from @umn.edu addresses have been found to be submitted in "bad faith" to try to test the kernel community's ability to review "known malicious" changes. The result of these submissions can be found in a paper published at the 42nd IEEE Symposium on Security and Privacy entitled, "Open Source Insecurity: Stealthily Introducing Vulnerabilities via Hypocrite Commits" written by Qiushi Wu (University of Minnesota) and Kangjie Lu (University of Minnesota).
Because of this, all submissions from this group must be reverted from the kernel tree and will need to be re-reviewed again to determine if they actually are a valid fix. Until that work is complete, remove this change to ensure that no problems are being introduced into the codebase.
Cc: Kangjie Lu <kjlu@umn.edu> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/tipc/group.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/net/tipc/group.c b/net/tipc/group.c index 3e137d8c9d2f..d18d497af4de 100644 --- a/net/tipc/group.c +++ b/net/tipc/group.c @@ -927,9 +927,6 @@ int tipc_group_fill_sock_diag(struct tipc_group *grp, struct sk_buff *skb) { struct nlattr *group = nla_nest_start_noflag(skb, TIPC_NLA_SOCK_GROUP); - if (!group) - return -EMSGSIZE; - if (nla_put_u32(skb, TIPC_NLA_SOCK_GROUP_ID, grp->type) || nla_put_u32(skb, TIPC_NLA_SOCK_GROUP_INSTANCE, -- 2.31.1
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