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authorMaxime Ripard <maxime@cerno.tech>2021-05-27 14:32:13 +0200
committerMaxime Ripard <maxime@cerno.tech>2021-05-27 14:32:13 +0200
commitffa52910faff64f2070af42c22d782c4572d889e (patch)
tree18c103f25a1467d02af1ebf27d7f0a8b177f5825 /fs/namespace.c
parent5ccbb2ee039f0bd81e2b34b670718186753a4e17 (diff)
parent5522e9f7b0fbe2a0cb89c199b574523becc8c3ab (diff)
Merge drm/drm-next into drm-misc-next
i915 is broken without -rc3, let's bring that tag in to fix it. Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'fs/namespace.c')
-rw-r--r--fs/namespace.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index f63337828e1c..c3f1a78ba369 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3855,8 +3855,12 @@ static int can_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)
if (!(m->mnt_sb->s_type->fs_flags & FS_ALLOW_IDMAP))
return -EINVAL;
+ /* Don't yet support filesystem mountable in user namespaces. */
+ if (m->mnt_sb->s_user_ns != &init_user_ns)
+ return -EINVAL;
+
/* We're not controlling the superblock. */
- if (!ns_capable(m->mnt_sb->s_user_ns, CAP_SYS_ADMIN))
+ if (!capable(CAP_SYS_ADMIN))
return -EPERM;
/* Mount has already been visible in the filesystem hierarchy. */