diff options
| author | Max Reitz <mreitz@redhat.com> | 2015-02-25 13:08:23 -0500 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-03-18 12:06:56 +0100 |
| commit | ac97393dc7c4761af6104fb8fca5f600899f687b (patch) | |
| tree | 497deb6c95c1679c72881c34683515c038b5e3d5 /qemu-nbd.c | |
| parent | 70d4739ef200760d8cac3355d05b4252f2f37fec (diff) | |
nbd: Fix potential signed overflow issues
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>
Diffstat (limited to 'qemu-nbd.c')
| -rw-r--r-- | qemu-nbd.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/qemu-nbd.c b/qemu-nbd.c index 0c9e807a1a..a4a9a0cf37 100644 --- a/qemu-nbd.c +++ b/qemu-nbd.c @@ -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, |