From 1105171d080eb051fbd51748b76fd5fed747505e Mon Sep 17 00:00:00 2001 From: "GONG, Ruiqi" Date: Mon, 6 Jun 2022 16:17:14 +0800 Subject: [PATCH] smack: Replace kzalloc + strncpy with kstrndup Simplify the code by using kstrndup instead of kzalloc and strncpy in smk_parse_smack(), which meanwhile remove strncpy as [1] suggests. [1]: https://github.com/KSPP/linux/issues/90 Signed-off-by: GONG, Ruiqi Signed-off-by: Casey Schaufler --- security/smack/smack_access.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c index d2186e2757be8..585e5e35710b2 100644 --- a/security/smack/smack_access.c +++ b/security/smack/smack_access.c @@ -465,12 +465,9 @@ char *smk_parse_smack(const char *string, int len) if (i == 0 || i >= SMK_LONGLABEL) return ERR_PTR(-EINVAL); - smack = kzalloc(i + 1, GFP_NOFS); - if (smack == NULL) + smack = kstrndup(string, i, GFP_NOFS); + if (!smack) return ERR_PTR(-ENOMEM); - - strncpy(smack, string, i); - return smack; }