diff options
| -rw-r--r-- | fs/dcache.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/dcache.c b/fs/dcache.c index 9b5fe503f6cb..e3b44ca75a1b 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -2926,6 +2926,13 @@ restart: if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) { struct mount *parent = ACCESS_ONCE(mnt->mnt_parent); + /* Escaped? */ + if (dentry != vfsmnt->mnt_root) { + bptr = *buffer; + blen = *buflen; + error = 3; + break; + } /* Global root? */ if (mnt != parent) { dentry = ACCESS_ONCE(mnt->mnt_mountpoint); |