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Fix memory leak on malloc failure.

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Found by running malloc tests with -valgrind. Unfortunately, the next one is
deep in crypto/asn1 itself, so I'm going to stop here for now.

Change-Id: I7a33971ee07c6b7b7a98715f2f18e0f29380c0a1
Reviewed-on: https://boringssl-review.googlesource.com/3350
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
David Benjamin 2015-02-09 13:13:09 -05:00 committed by Adam Langley
parent 2d445c0921
commit 9e128b06a1
2 changed files with 19 additions and 13 deletions
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29
crypto/x509/x_name.c
View File

@ -175,6 +175,16 @@ static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
*pval = NULL;
}
static void local_sk_X509_NAME_ENTRY_free(STACK_OF(X509_NAME_ENTRY) *ne)
{
sk_X509_NAME_ENTRY_free(ne);
}
static void local_sk_X509_NAME_ENTRY_pop_free(STACK_OF(X509_NAME_ENTRY) *ne)
{
sk_X509_NAME_ENTRY_pop_free(ne, X509_NAME_ENTRY_free);
}
static int x509_name_ex_d2i(ASN1_VALUE **val,
const unsigned char **in, long len, const ASN1_ITEM *it,
int tag, int aclass, char opt, ASN1_TLC *ctx)
@ -197,9 +207,14 @@ static int x509_name_ex_d2i(ASN1_VALUE **val,
if(ret <= 0) return ret;
if(*val) x509_name_ex_free(val, NULL);
if(!x509_name_ex_new(&nm.a, NULL)) goto err;
/* We've decoded it: now cache encoding */
if(!BUF_MEM_grow(nm.x->bytes, p - q)) goto err;
if (!x509_name_ex_new(&nm.a, NULL) ||
!BUF_MEM_grow(nm.x->bytes, p - q))
{
sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname.s,
local_sk_X509_NAME_ENTRY_pop_free);
goto err;
}
memcpy(nm.x->bytes->data, q, p - q);
/* Convert internal representation to X509_NAME structure */
@ -248,16 +263,6 @@ static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_IT
return ret;
}
static void local_sk_X509_NAME_ENTRY_free(STACK_OF(X509_NAME_ENTRY) *ne)
{
sk_X509_NAME_ENTRY_free(ne);
}
static void local_sk_X509_NAME_ENTRY_pop_free(STACK_OF(X509_NAME_ENTRY) *ne)
{
sk_X509_NAME_ENTRY_pop_free(ne, X509_NAME_ENTRY_free);
}
static int x509_name_encode(X509_NAME *a)
{
union { STACK_OF(STACK_OF_X509_NAME_ENTRY) *s;

3
ssl/test/runner/runner.go
View File

@ -1053,7 +1053,8 @@ func runTest(test *testCase, buildDir string, mallocNumToFail int64) error {
shim.Stdout = &stdoutBuf
shim.Stderr = &stderrBuf
if mallocNumToFail >= 0 {
shim.Env = []string{"MALLOC_NUMBER_TO_FAIL=" + strconv.FormatInt(mallocNumToFail, 10)}
shim.Env = os.Environ()
shim.Env = append(shim.Env, "MALLOC_NUMBER_TO_FAIL="+strconv.FormatInt(mallocNumToFail, 10))
if *mallocTestDebug {
shim.Env = append(shim.Env, "MALLOC_ABORT_ON_FAIL=1")
}