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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2019-11-12 09:19:26 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2019-11-12 12:50:28 +0100 |
| commit | f9cac4fd8878929c6ebff0bd272317905d77c38a (patch) | |
| tree | bed56377c6fe1ec745004fab6f7d3bb4eeb7a516 /drivers/s390 | |
| parent | 4ff4ba153ab35710c81046b4a71b2eda0cc798f0 (diff) | |
| download | lwn-f9cac4fd8878929c6ebff0bd272317905d77c38a.tar.gz lwn-f9cac4fd8878929c6ebff0bd272317905d77c38a.zip | |
s390/pkey: fix memory leak within _copy_apqns_from_user()
Fixes: f2bbc96e7cfad ("s390/pkey: add CCA AES cipher key support")
Reported-by: Markus Elfring <Markus.Elfring@web.de>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/crypto/pkey_api.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c index 9de3d46b3253..e17fac20127e 100644 --- a/drivers/s390/crypto/pkey_api.c +++ b/drivers/s390/crypto/pkey_api.c @@ -740,8 +740,10 @@ static void *_copy_apqns_from_user(void __user *uapqns, size_t nr_apqns) kapqns = kmalloc(nbytes, GFP_KERNEL); if (!kapqns) return ERR_PTR(-ENOMEM); - if (copy_from_user(kapqns, uapqns, nbytes)) + if (copy_from_user(kapqns, uapqns, nbytes)) { + kfree(kapqns); return ERR_PTR(-EFAULT); + } } return kapqns; |