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Code Issues Releases Activity

avcodec/iff: check if there is enough bytes left

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
2016-05-16 15:37:24 +02:00
parent 635b2ec5f2
commit 8767470fb5
1 changed files with 6 additions and 0 deletions
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6
libavcodec/iff.c
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@@ -850,6 +850,9 @@ static void decode_delta_j(uint8_t *dst,
for (g = 0; g < groups; g++) { for (g = 0; g < groups; g++) {
offset = bytestream2_get_be16(&gb); offset = bytestream2_get_be16(&gb);
if (bytestream2_get_bytes_left(&gb) < 1)
return;
if (kludge_j) if (kludge_j)
offset = ((offset / (320 / 8)) * pitch) + (offset % (320 / 8)) - kludge_j; offset = ((offset / (320 / 8)) * pitch) + (offset % (320 / 8)) - kludge_j;
else else
@@ -893,6 +896,9 @@ static void decode_delta_j(uint8_t *dst,
for (d = 0; d < bpp; d++) { for (d = 0; d < bpp; d++) {
unsigned noffset = offset + (r * pitch) + d * planepitch; unsigned noffset = offset + (r * pitch) + d * planepitch;
if (bytestream2_get_bytes_left(&gb) < 1)
return;
for (b = 0; b < bytes; b++) { for (b = 0; b < bytes; b++) {
uint8_t value = bytestream2_get_byte(&gb); uint8_t value = bytestream2_get_byte(&gb);