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-rw-r--r--sys/fs/unionfs/union_subr.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/fs/unionfs/union_subr.c b/sys/fs/unionfs/union_subr.c
index 05e9399..c032ec8 100644
--- a/sys/fs/unionfs/union_subr.c
+++ b/sys/fs/unionfs/union_subr.c
@@ -989,8 +989,14 @@ unionfs_check_rmdir(struct vnode *vp, struct ucred *cred, struct thread *td)
uio.uio_resid = iov.iov_len;
error = VOP_READDIR(lvp, &uio, cred, &eofflag, NULL, NULL);
- if (error)
+ if (error != 0)
break;
+ if (eofflag == 0 && uio.uio_resid == sizeof(buf)) {
+#ifdef DIAGNOSTIC
+ panic("bad readdir response from lower FS.");
+#endif
+ break;
+ }
edp = (struct dirent*)&buf[sizeof(buf) - uio.uio_resid];
for (dp = (struct dirent*)buf; !error && dp < edp;
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