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Merge "fix(guid-partition): fix unaligned access in load_mbr_header()" into integration

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Manish V Badarkhe 2024-07-04 15:31:04 +02:00 • committed by TrustedFirmware Code Review
commit 4b9be5abfa
1 changed files with 5 additions and 5 deletions
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10
drivers/partition/partition.c
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@ -50,7 +50,7 @@ static int load_mbr_header(uintptr_t image_handle, mbr_entry_t *mbr_entry)
{
size_t bytes_read;
int result;
mbr_entry_t *tmp;
mbr_entry_t tmp;
assert(mbr_entry != NULL);
/* MBR partition table is in LBA0. */
@ -73,19 +73,19 @@ static int load_mbr_header(uintptr_t image_handle, mbr_entry_t *mbr_entry)
return -ENOENT;
}
tmp = (mbr_entry_t *)(&mbr_sector[MBR_PRIMARY_ENTRY_OFFSET]);
memcpy(&tmp, mbr_sector + MBR_PRIMARY_ENTRY_OFFSET, sizeof(tmp));
if (tmp->first_lba != 1) {
if (tmp.first_lba != 1) {
VERBOSE("MBR header may have an invalid first LBA\n");
return -EINVAL;
}
if ((tmp->sector_nums == 0) || (tmp->sector_nums == UINT32_MAX)) {
if ((tmp.sector_nums == 0) || (tmp.sector_nums == UINT32_MAX)) {
VERBOSE("MBR header entry has an invalid number of sectors\n");
return -EINVAL;
}
memcpy(mbr_entry, tmp, sizeof(mbr_entry_t));
memcpy(mbr_entry, &tmp, sizeof(mbr_entry_t));
return 0;
}