Acked-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com>
On 10/07/2015 10:59 AM, Andrew Vagin wrote:
Reported-by: Pavel Tikhomirov <ptikhomi...@virtuozzo.com> Signed-off-by: Andrew Vagin <ava...@openvz.org> --- fs/namespace.c | 8 +++++++- scripts/basic/fixdep | Bin 13875 -> 14262 bytes 2 files changed, 7 insertions(+), 1 deletions(-) diff --git a/fs/namespace.c b/fs/namespace.c index 77a1ede..1377488 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -2167,6 +2167,7 @@ static int do_new_mount(struct path *path, const char *fstype, int flags, struct file_system_type *type; struct user_namespace *user_ns = current->nsproxy->mnt_ns->user_ns; struct vfsmount *mnt; + struct user_namespace *root_user_ns; int err; if (!fstype) @@ -2176,7 +2177,12 @@ static int do_new_mount(struct path *path, const char *fstype, int flags, if (!type) return -ENODEV; - if (user_ns != &init_user_ns) { + if (get_exec_env()->init_cred) + root_user_ns = get_exec_env()->init_cred->user_ns; + else + root_user_ns = &init_user_ns; + + if (user_ns != root_user_ns) { if (!(type->fs_flags & FS_USERNS_MOUNT)) { put_filesystem(type); return -EPERM;
-- Best regards, Tikhomirov Pavel Software Developer, Odin. _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel