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From 783e08a4e5f6769f7ebd2f3e43ca4ccfab003e8b Mon Sep 17 00:00:00 2001
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From: Sergei Antonov <saproj@gmail.com>
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Date: Fri, 3 Jul 2015 00:21:23 +0200
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Subject: [PATCH 66/75] mac: copy partition type and name correctly
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Use strncpy() instead of strcpy() to copy partition name and type.
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This prevents possible buffer overflow, because the source string
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occupies up to 33 bytes with a terminating null.
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Static analysis tools complain about the code as it is now:
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Function: _generate_raw_part
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Destination buffer too small
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string_overflow: You might overrun the 32 byte destination string
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part_map_entry->type by writing 33 bytes from mac_part_data->system_name
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(Destination buffer too small, line 933)
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Cc: Sabas Rosales, Blanca E <blanca.e.sabas.rosales@intel.com>
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Signed-off-by: Sergei Antonov <saproj@gmail.com>
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Signed-off-by: Brian C. Lane <bcl@brianlane.com>
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(cherry picked from commit 282e25e0384e8d1275ccacf904fdaf65f1d4a8af)
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---
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libparted/labels/mac.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/libparted/labels/mac.c b/libparted/labels/mac.c
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index 1034418..d8da941 100644
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--- a/libparted/labels/mac.c
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+++ b/libparted/labels/mac.c
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@@ -930,8 +930,8 @@ _generate_raw_part (PedDisk* disk, PedPartition* part,
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= PED_CPU_TO_BE32 (mac_disk_data->last_part_entry_num);
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part_map_entry->start_block = PED_CPU_TO_BE32 (part->geom.start);
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part_map_entry->block_count = PED_CPU_TO_BE32 (part->geom.length);
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- strcpy (part_map_entry->name, mac_part_data->volume_name);
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- strcpy (part_map_entry->type, mac_part_data->system_name);
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+ strncpy (part_map_entry->name, mac_part_data->volume_name, 32);
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+ strncpy (part_map_entry->type, mac_part_data->system_name, 32);
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if (mac_part_data->is_driver) {
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mac_part_data->boot_region_length = part->geom.length;
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--
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2.9.3
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