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headers: handle unfold of space-cleansed headers

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Detected by OSS-fuzz

Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47767

Updated test 1274

Closes #8947
This commit is contained in:
Daniel Stenberg 2022-06-01 14:04:17 +02:00
parent 45de940ceb
commit f810047f9d
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2 changed files with 5 additions and 3 deletions
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lib/headers.c
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@ -227,8 +227,8 @@ static CURLcode unfold_value(struct Curl_easy *data, const char *value,
DEBUGASSERT(data->state.prevhead);
hs = data->state.prevhead;
olen = strlen(hs->value);
oalloc = olen + strlen(hs->name) + 1;
offset = hs->value - hs->buffer;
oalloc = olen + offset + 1;
/* skip all trailing space letters */
while(vlen && ISSPACE(value[vlen - 1]))