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Curl_reconnect_request: clear pointer on failure

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The Curl_reconnect_request() function could end up returning a pointer
to a free()d struct when Curl_done() failed inside. Clearing the pointer
unconditionally after Curl_done() avoids this risk.

Reported by: Ho-chi Chen
Bug: http://curl.haxx.se/mail/lib-2012-09/0188.html
This commit is contained in:
Daniel Stenberg 2012-09-28 13:56:03 +02:00
parent 4ea7a65af7
commit 628c4e7af1
1 changed files with 3 additions and 1 deletions
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4
lib/transfer.c
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@ -1985,7 +1985,9 @@ Curl_reconnect_request(struct connectdata **connp)
conn->bits.close = TRUE; /* enforce close of this connection */
result = Curl_done(&conn, result, FALSE); /* we are so done with this */
/* conn may no longer be a good pointer */
/* conn may no longer be a good pointer, clear it to avoid mistakes by
parent functions */
*connp = NULL;
/*
* According to bug report #1330310. We need to check for CURLE_SEND_ERROR