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nbd: Fix potential signed overflow issues

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Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <1424887718-10800-11-git-send-email-mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Max Reitz 2015-02-25 13:08:23 -05:00 • committed by Paolo Bonzini
parent 70d4739ef2
commit ac97393dc7
2 changed files with 5 additions and 4 deletions
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5
qemu-nbd.c
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@ -142,8 +142,9 @@ static void read_partition(uint8_t *p, struct partition_record *r)
r->end_head = p[5];
r->end_cylinder = p[7] | ((p[6] << 2) & 0x300);
r->end_sector = p[6] & 0x3f;
r->start_sector_abs = p[8] | p[9] << 8 | p[10] << 16 | p[11] << 24;
r->nb_sectors_abs = p[12] | p[13] << 8 | p[14] << 16 | p[15] << 24;
r->start_sector_abs = le32_to_cpup((uint32_t *)(p + 8));
r->nb_sectors_abs = le32_to_cpup((uint32_t *)(p + 12));
}
static int find_partition(BlockBackend *blk, int partition,