SELinux: null-terminate context string in selinux_xfrm_sec_ctx_alloc

[safe/jmp/linux-2.6] / security / selinux / xfrm.c

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index bd8d1ef..ba715f4 100644 (file)
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -216,7 +216,7 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
                return -ENOMEM;
 
        *ctxp = ctx = kmalloc(sizeof(*ctx) +
-                             uctx->ctx_len,
+                             uctx->ctx_len + 1,
                              GFP_KERNEL);
 
        if (!ctx)
@@ -229,6 +229,7 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
        memcpy(ctx->ctx_str,
               uctx+1,
               ctx->ctx_len);
+       ctx->ctx_str[ctx->ctx_len] = 0;
        rc = security_context_to_sid(ctx->ctx_str,
                                     ctx->ctx_len,
                                     &ctx->ctx_sid);