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author | Pavel Skripkin <paskripkin@gmail.com> | 2021-07-17 14:29:33 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-28 15:35:38 +0300 |
commit | 8e9662fde6d63c78eb1350f6167f64c9d71a865b (patch) | |
tree | 28e30e0023b075b0d89fdedff1b843b773af647e /net/sctp | |
parent | e14ef1095387f764d95614d3ec9e4d07c82a3533 (diff) | |
download | linux-8e9662fde6d63c78eb1350f6167f64c9d71a865b.tar.xz |
net: sched: fix memory leak in tcindex_partial_destroy_work
[ Upstream commit f5051bcece50140abd1a11a2d36dc3ec5484fc32 ]
Syzbot reported memory leak in tcindex_set_parms(). The problem was in
non-freed perfect hash in tcindex_partial_destroy_work().
In tcindex_set_parms() new tcindex_data is allocated and some fields from
old one are copied to new one, but not the perfect hash. Since
tcindex_partial_destroy_work() is the destroy function for old
tcindex_data, we need to free perfect hash to avoid memory leak.
Reported-and-tested-by: syzbot+f0bbb2287b8993d4fa74@syzkaller.appspotmail.com
Fixes: 331b72922c5f ("net: sched: RCU cls_tcindex")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/sctp')
0 files changed, 0 insertions, 0 deletions