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Code Issues Releases Activity

avcodec/exr: fix skipping too long metadata values

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This commit is contained in:
Paul B Mahol
2022-09-22 10:28:36 +02:00
parent c9aa6164d4
commit f55f817955
1 changed files with 3 additions and 1 deletions
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4
libavcodec/exr.c
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@@ -1962,7 +1962,7 @@ static int decode_header(EXRContext *s, AVFrame *frame)
{ {
uint8_t name[256] = { 0 }; uint8_t name[256] = { 0 };
uint8_t type[256] = { 0 }; uint8_t type[256] = { 0 };
uint8_t value[256] = { 0 }; uint8_t value[8192] = { 0 };
int i = 0, size; int i = 0, size;
while (bytestream2_get_bytes_left(gb) > 0 && while (bytestream2_get_bytes_left(gb) > 0 &&
@@ -1980,6 +1980,8 @@ static int decode_header(EXRContext *s, AVFrame *frame)
size = bytestream2_get_le32(gb); size = bytestream2_get_le32(gb);
bytestream2_get_buffer(gb, value, FFMIN(sizeof(value) - 1, size)); bytestream2_get_buffer(gb, value, FFMIN(sizeof(value) - 1, size));
if (size > sizeof(value) - 1)
bytestream2_skip(gb, size - (sizeof(value) - 1));
if (!strcmp(type, "string")) if (!strcmp(type, "string"))
av_dict_set(&metadata, name, value, 0); av_dict_set(&metadata, name, value, 0);
} }