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crypto: tcrypt - Fix potential leak in test_aead_speed() if aad_size is too big 

Fix a potential memory leak in the error handling of test_aead_speed(). In case
the size check on the associate data length parameter fails, the function goes
through the wrong exit label. Reported by Coverity - CID 1163870.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Acked-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Christian Engelmayer 2014-04-21 20:45:59 +02:00 committed by Herbert Xu
parent 3d67be2761
commit ac5f863f8c
1 changed files with 6 additions and 8 deletions
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14
crypto/tcrypt.c
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@ -282,6 +282,11 @@ static void test_aead_speed(const char *algo, int enc, unsigned int sec,
unsigned int *b_size; unsigned int *b_size;
unsigned int iv_len; unsigned int iv_len;
if (aad_size >= PAGE_SIZE) {
pr_err("associate data length (%u) too big\n", aad_size);
return;
}
if (enc == ENCRYPT) if (enc == ENCRYPT)
e = "encryption"; e = "encryption";
else else
@ -323,14 +328,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int sec,
b_size = aead_sizes; b_size = aead_sizes;
do { do {
assoc = axbuf[0]; assoc = axbuf[0];
memset(assoc, 0xff, aad_size);
if (aad_size < PAGE_SIZE)
memset(assoc, 0xff, aad_size);
else {
pr_err("associate data length (%u) too big\n",
aad_size);
goto out_nosg;
}
sg_init_one(&asg[0], assoc, aad_size); sg_init_one(&asg[0], assoc, aad_size);
if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) { if ((*keysize + *b_size) > TVMEMSIZE * PAGE_SIZE) {