From ed96dc9718ad06cbe3a05a3879ea8ab13606d58b Mon Sep 17 00:00:00 2001 From: "Liam R. Howlett" Date: Wed, 2 Mar 2022 22:36:59 -0500 Subject: [PATCH] maple_tree: Fix extend_null overflow Signed-off-by: Liam R. Howlett --- lib/maple_tree.c | 1 + 1 file changed, 1 insertion(+) diff --git a/lib/maple_tree.c b/lib/maple_tree.c index a53dc391f0558..f1fdb441ead77 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -4113,6 +4113,7 @@ static inline void mas_wr_extend_null(struct ma_wr_state *wr_mas) /* Check next slot(s) if we are overwriting the end */ if ((mas->last == wr_mas->end_piv) && + (wr_mas->node_end != wr_mas->offset_end) && !wr_mas->slots[wr_mas->offset_end + 1]) { wr_mas->offset_end++; if (wr_mas->offset_end == wr_mas->node_end) -- 2.50.1