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multi: free sockhash on OOM

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This would otherwise leak memory in the error path.

Detected by torture test 1540.

Closes #4713
This commit is contained in:
Daniel Stenberg 2019-12-13 17:45:21 +01:00
parent 38ad9ea1b8
commit 29ca9fc596
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1 changed files with 1 additions and 0 deletions
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lib/multi.c
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@ -260,6 +260,7 @@ static struct Curl_sh_entry *sh_addentry(struct curl_hash *sh,
/* make/add new hash entry */ /* make/add new hash entry */
if(!Curl_hash_add(sh, (char *)&s, sizeof(curl_socket_t), check)) { if(!Curl_hash_add(sh, (char *)&s, sizeof(curl_socket_t), check)) {
Curl_hash_destroy(&check->transfers);
free(check); free(check);
return NULL; /* major failure */ return NULL; /* major failure */
} }