diff options
Diffstat (limited to 'fs/overlayfs/namei.c')
| -rw-r--r-- | fs/overlayfs/namei.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index beb945e1963c..926248e1de04 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -774,6 +774,7 @@ bool ovl_lower_positive(struct dentry *dentry) struct ovl_entry *oe = dentry->d_fsdata; struct ovl_entry *poe = dentry->d_parent->d_fsdata; const struct qstr *name = &dentry->d_name; + const struct cred *old_cred; unsigned int i; bool positive = false; bool done = false; @@ -789,6 +790,7 @@ bool ovl_lower_positive(struct dentry *dentry) if (!ovl_dentry_upper(dentry)) return true; + old_cred = ovl_override_creds(dentry->d_sb); /* Positive upper -> have to look up lower to see whether it exists */ for (i = 0; !done && !positive && i < poe->numlower; i++) { struct dentry *this; @@ -818,6 +820,7 @@ bool ovl_lower_positive(struct dentry *dentry) dput(this); } } + revert_creds(old_cred); return positive; } |