diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/security.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/security/security.c b/security/security.c index a808fd5eba6d4..d7b15ea67c3f5 100644 --- a/security/security.c +++ b/security/security.c @@ -4011,14 +4011,9 @@ int security_setselfattr(unsigned int attr, struct lsm_ctx __user *uctx, if (size > PAGE_SIZE) return -E2BIG; - lctx = kmalloc(size, GFP_KERNEL); - if (lctx == NULL) - return -ENOMEM; - - if (copy_from_user(lctx, uctx, size)) { - rc = -EFAULT; - goto free_out; - } + lctx = memdup_user(uctx, size); + if (IS_ERR(lctx)) + return PTR_ERR(lctx); if (size < lctx->len || size < lctx->ctx_len + sizeof(*lctx) || lctx->len < lctx->ctx_len + sizeof(*lctx)) { |