lib/package_msg.c: fix a heap overflow (noticed by @Gottox).
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@ -59,7 +59,7 @@ xbps_cb_message(struct xbps_handle *xhp, xbps_dictionary_t pkgd, const char *key
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xbps_dbg_printf(xhp, "[%s] %s: fmemopen %s\n", __func__, pkgver, strerror(rv));
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goto out;
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};
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buf = malloc(len);
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buf = malloc(len+1);
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assert(buf);
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if (fread(buf, len, 1, f) != len) {
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if (ferror(f)) {
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