34 lines
874 B
Diff
34 lines
874 B
Diff
From: https://github.com/libssh2/libssh2/commit/e7e1312b0cbfa643e2f8bf5f2036ce5147ed797d
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From: bagder <daniel@haxx.se>
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Date: 21 Mar 2022 10:11 -0800
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Subject: misc/libssh2_copy_string: avoid malloc zero bytes #686
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Notes:
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* Avoid the inconsistent malloc return code for malloc(0)
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--- libssh2-1.10.0/src/misc.c 2019-09-13 14:39:11.000000000 +0800
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+++ libssh2-1.10.0/src/misc.c 2022-09-29 18:27:13.604424483 +0800
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@@ -794,12 +794,18 @@
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return -1;
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}
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- *outbuf = LIBSSH2_ALLOC(session, str_len);
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- if(*outbuf) {
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- memcpy(*outbuf, str, str_len);
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+ if(str_len) {
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+ *outbuf = LIBSSH2_ALLOC(session, str_len);
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+ if(*outbuf) {
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+ memcpy(*outbuf, str, str_len);
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+ }
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+ else {
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+ return -1;
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+ }
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}
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else {
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- return -1;
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+ *outlen = 0;
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+ *outbuf = NULL;
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}
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if(outlen)
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