From 691a0237809b5364117446a8a9b0cceeb0a747c1 Mon Sep 17 00:00:00 2001 From: Ming-Hung Tsai Date: Tue, 1 Jun 2021 11:24:11 +0800 Subject: [PATCH 02/10] [thin_show_metadata] Fix out-of-bounds access --- thin-provisioning/thin_show_metadata.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/thin-provisioning/thin_show_metadata.cc b/thin-provisioning/thin_show_metadata.cc index bdbab3f..dbc7a80 100644 --- a/thin-provisioning/thin_show_metadata.cc +++ b/thin-provisioning/thin_show_metadata.cc @@ -206,7 +206,8 @@ namespace { void run() { auto line_length = 80; - for (block_address b = 0; b < 2000; b++) { + block_address nr_blocks = std::min(2000, bm_.get_nr_blocks()); + for (block_address b = 0; b < nr_blocks; b++) { block_manager::read_ref rr = bm_.read_lock(b); if (!(b % line_length)) { -- 1.8.3.1