Lncvrt/grub
1
0 Fork 0
mirror of https://git.savannah.gnu.org/git/grub.git synced 2026-10-21 14:59:34 +00:00
Code Issues Packages Projects Releases Wiki Activity

calloc: Use calloc() at most places

Browse Source 
This modifies most of the places we do some form of:

  X = malloc(Y * Z);

to use calloc(Y, Z) instead.

Among other issues, this fixes:
  - allocation of integer overflow in grub_png_decode_image_header()
    reported by Chris Coulson,
  - allocation of integer overflow in luks_recover_key()
    reported by Chris Coulson,
  - allocation of integer overflow in grub_lvm_detect()
    reported by Chris Coulson.

Fixes: CVE-2020-14308

Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Peter Jones authored and Daniel Kiper committed 2020-07-29 16:55:47 +02:00
1 parent 64e26162eb
commit f725fa7cb2
87 files changed
+179 -178
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

grub-core/tests/video_checksum.c
+3 -3
View File
@@ -336,7 +336,7 @@ grub_video_capture_write_bmp (const char *fname,
{
case 4:
{
grub_uint8_t *buffer = xmalloc (mode_info->width * 3);
grub_uint8_t *buffer = xcalloc (3, mode_info->width);
grub_uint32_t rmask = ((1 << mode_info->red_mask_size) - 1);
grub_uint32_t gmask = ((1 << mode_info->green_mask_size) - 1);
grub_uint32_t bmask = ((1 << mode_info->blue_mask_size) - 1);
@@ -367,7 +367,7 @@ grub_video_capture_write_bmp (const char *fname,
}
case 3:
{
grub_uint8_t *buffer = xmalloc (mode_info->width * 3);
grub_uint8_t *buffer = xcalloc (3, mode_info->width);
grub_uint32_t rmask = ((1 << mode_info->red_mask_size) - 1);
grub_uint32_t gmask = ((1 << mode_info->green_mask_size) - 1);
grub_uint32_t bmask = ((1 << mode_info->blue_mask_size) - 1);
@@ -407,7 +407,7 @@ grub_video_capture_write_bmp (const char *fname,
}
case 2:
{
grub_uint8_t *buffer = xmalloc (mode_info->width * 3);
grub_uint8_t *buffer = xcalloc (3, mode_info->width);
grub_uint16_t rmask = ((1 << mode_info->red_mask_size) - 1);
grub_uint16_t gmask = ((1 << mode_info->green_mask_size) - 1);
grub_uint16_t bmask = ((1 << mode_info->blue_mask_size) - 1);