Messages in this thread Patch in this message | | | From | Andrew Price <> | Subject | [PATCH] gfs2: Fix memory leak when gfs2meta's fs_context is freed | Date | Thu, 3 Oct 2019 16:35:52 +0100 |
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gfs2 and gfs2meta share an ->init_fs_context function which allocates an args structure stored in fc->fs_private. gfs2 registers a ->free function to free this memory when the fs_context is cleaned up, but there was not one registered for gfs2meta, causing a leak.
Register a ->free function for gfs2meta. The existing gfs2_fc_free function does what we need.
Reported-by: syzbot+c2fdfd2b783754878fb6@syzkaller.appspotmail.com Signed-off-by: Andrew Price <anprice@redhat.com> --- fs/gfs2/ops_fstype.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 681b44682b0d..dc61af2c4d5e 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -1600,6 +1600,7 @@ static int gfs2_meta_get_tree(struct fs_context *fc) } static const struct fs_context_operations gfs2_meta_context_ops = { + .free = gfs2_fc_free, .get_tree = gfs2_meta_get_tree, }; -- 2.21.0
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