tree a7ef3d1a4e4ced949726c6168842e6841065a375
parent 74703c09c98e094af2885ff2ff052d66b2731fe4
author Xin Long <lucien.xin@gmail.com> 1714485818 -0400
committer Vegard Nossum <vegard.nossum@oracle.com> 1717417791 +0000

tipc: fix a possible memleak in tipc_buf_append

[ Upstream commit 97bf6f81b29a8efaf5d0983251a7450e5794370d ]

__skb_linearize() doesn't free the skb when it fails, so move
'*buf = NULL' after __skb_linearize(), so that the skb can be
freed on the err path.

Fixes: b7df21cf1b79 ("tipc: skb_linearize the head skb when reassembling msgs")
Reported-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Link: https://lore.kernel.org/r/90710748c29a1521efac4f75ea01b3b7e61414cf.1714485818.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 01cd1b7b685751ee422d00d050292a3d277652d6)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>