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decoder/dsdiff: use a fixed-size buffer for the tag value

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Variable-length arrays are a C-only feature.
This commit is contained in:
Max Kellermann 2019-06-06 12:32:49 +02:00
parent adffbba2a5
commit 3e40b1d9d2
1 changed files with 3 additions and 2 deletions
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5
src/decoder/plugins/DsdiffDecoderPlugin.cxx
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@ -201,10 +201,11 @@ dsdiff_handle_native_tag(InputStream &is,
uint32_t length = FromBE32(metatag.size); uint32_t length = FromBE32(metatag.size);
/* Check and limit size of the tag to prevent a stack overflow */ /* Check and limit size of the tag to prevent a stack overflow */
if (length == 0 || length > 60) constexpr size_t MAX_LENGTH = 60;
if (length == 0 || length > MAX_LENGTH)
return; return;
char string[length + 1]; char string[MAX_LENGTH + 1];
char *label; char *label;
label = string; label = string;