From: Matt Caswell <matt@openssl.org>
Date: Thu, 20 Oct 2016 23:09:02 +0000 (+0100)
Subject: Read up to INT_MAX when calling legacy BIO_read() implementations
X-Git-Tag: OpenSSL_1_1_1-pre1~3317
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=7f5f01cf538a01879805d22cb9a92047d1d97b19;p=oweals%2Fopenssl.git

Read up to INT_MAX when calling legacy BIO_read() implementations

In converting a new style BIO_read() call into an old one, read
as much data as we can (INT_MAX), if the size of the buffer is
>INT_MAX.

Reviewed-by: Richard Levitte <levitte@openssl.org>
---

diff --git a/crypto/bio/bio_meth.c b/crypto/bio/bio_meth.c
index 7b4c340cdf..daffc541a3 100644
--- a/crypto/bio/bio_meth.c
+++ b/crypto/bio/bio_meth.c
@@ -112,7 +112,7 @@ int bread_conv(BIO *bio, char *out, size_t outl, size_t *read)
     int ret;
 
     if (outl > INT_MAX)
-        return 0;
+        outl = INT_MAX;
 
     ret = bio->method->bread_old(bio, out, (int)outl);