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authorEric W. Biederman <ebiederm@xmission.com>2012-02-13 21:02:50 -0500
committerEric W. Biederman <ebiederm@xmission.com>2012-05-15 17:59:28 -0400
commit091bd3ea4e7ff4da8509978b9be93dc9d8cf0680 (patch)
tree0f7eb15899232f24bd1432c5893f96c9ade788bc /fs/proc/proc_sysctl.c
parentdcb0f22282e680ee5202ab7574ce78beb3803a9f (diff)
userns: Convert sysctl permission checks to use kuid and kgids.
Acked-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/proc_sysctl.c')
-rw-r--r--fs/proc/proc_sysctl.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 21d836f40292..3476bca8f7af 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -371,9 +371,9 @@ void register_sysctl_root(struct ctl_table_root *root)
371 371
372static int test_perm(int mode, int op) 372static int test_perm(int mode, int op)
373{ 373{
374 if (!current_euid()) 374 if (uid_eq(current_euid(), GLOBAL_ROOT_UID))
375 mode >>= 6; 375 mode >>= 6;
376 else if (in_egroup_p(0)) 376 else if (in_egroup_p(GLOBAL_ROOT_GID))
377 mode >>= 3; 377 mode >>= 3;
378 if ((op & ~mode & (MAY_READ|MAY_WRITE|MAY_EXEC)) == 0) 378 if ((op & ~mode & (MAY_READ|MAY_WRITE|MAY_EXEC)) == 0)
379 return 0; 379 return 0;