From mboxrd@z Thu Jan 1 00:00:00 1970 From: SF Markus Elfring Date: Sun, 15 Jan 2017 14:56:59 +0000 Subject: [PATCH 01/46] selinux: Use kmalloc_array() in cond_init_bool_indexes() Message-Id: <68a423a9-2f89-55f9-fb4c-97dd4df4bb1d@users.sourceforge.net> List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-security-module@vger.kernel.org, selinux@tycho.nsa.gov, Eric Paris , James Morris , Paul Moore , "Serge E. Hallyn" , Stephen Smalley , William Roberts Cc: LKML , kernel-janitors@vger.kernel.org From: Markus Elfring Date: Sat, 14 Jan 2017 10:48:28 +0100 * A multiplication for the size determination of a memory allocation indicated that an array data structure should be processed. Thus use the corresponding function "kmalloc_array". This issue was detected by using the Coccinelle software. * Replace the specification of a data type by a pointer dereference to make the corresponding size determination a bit safer according to the Linux coding style convention. Signed-off-by: Markus Elfring --- security/selinux/ss/conditional.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/security/selinux/ss/conditional.c b/security/selinux/ss/conditional.c index 34afeadd9e73..fcfab2635c11 100644 --- a/security/selinux/ss/conditional.c +++ b/security/selinux/ss/conditional.c @@ -176,8 +176,9 @@ void cond_policydb_destroy(struct policydb *p) int cond_init_bool_indexes(struct policydb *p) { kfree(p->bool_val_to_struct); - p->bool_val_to_struct - kmalloc(p->p_bools.nprim * sizeof(struct cond_bool_datum *), GFP_KERNEL); + p->bool_val_to_struct = kmalloc_array(p->p_bools.nprim, + sizeof(*p->bool_val_to_struct), + GFP_KERNEL); if (!p->bool_val_to_struct) return -ENOMEM; return 0; -- 2.11.0