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headers: clear (possibly) lingering pointer in init

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The "prevhead" pointer is used for the headers storage but was not
cleared correctly in init, which made it possible to act up when a
handle is reused.

Reported-by: Steve Herrell
Fixes #11101
Closes #11103
This commit is contained in:
Daniel Stenberg 2023-05-11 09:56:51 +02:00
parent 5338a41056
commit cd1c611b24
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lib/headers.c
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@ -336,6 +336,7 @@ CURLcode Curl_headers_push(struct Curl_easy *data, const char *header,
static void headers_init(struct Curl_easy *data)
{
Curl_llist_init(&data->state.httphdrs, NULL);
data->state.prevhead = NULL;
}
/*