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-rw-r--r--fs/namespace.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/fs/namespace.c b/fs/namespace.c
index afe2b64b14f1..41461f55c039 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4026,8 +4026,9 @@ static int can_idmap_mount(const struct mount_kattr *kattr, struct mount *mnt)
static inline bool mnt_allow_writers(const struct mount_kattr *kattr,
const struct mount *mnt)
{
- return !(kattr->attr_set & MNT_READONLY) ||
- (mnt->mnt.mnt_flags & MNT_READONLY);
+ return (!(kattr->attr_set & MNT_READONLY) ||
+ (mnt->mnt.mnt_flags & MNT_READONLY)) &&
+ !kattr->mnt_userns;
}
static int mount_setattr_prepare(struct mount_kattr *kattr, struct mount *mnt)