lkml.org 
[lkml]   [2014]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] userns: use marco instead of magic number for max userns level
Date
Use marco instead of magic number
for max user namespace level.

Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
---
kernel/user_namespace.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index aa312b0..5435489 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -47,6 +47,8 @@ static void set_cred_user_ns(struct cred *cred, struct user_namespace *user_ns)
cred->user_ns = user_ns;
}

+#define MAX_USER_NS_LEVEL 32
+
/*
* Create a new user namespace, deriving the creator from the user in the
* passed credentials, and replacing that user with the new root user for the
@@ -62,7 +64,7 @@ int create_user_ns(struct cred *new)
kgid_t group = new->egid;
int ret;

- if (parent_ns->level > 32)
+ if (parent_ns->level > MAX_USER_NS_LEVEL)
return -EUSERS;

/*
--
1.9.0


\
 
 \ /
  Last update: 2014-09-05 10:01    [W:0.023 / U:1.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site