git: 7b7708867c44 - stable/12 - Do not call nameicap_tracker_add() for dotdot case.

[Konstantin Belousov]

The branch stable/12 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=7b7708867c4473f47a577427320459f57a70d458

commit 7b7708867c4473f47a577427320459f57a70d458
Author:     Konstantin Belousov <kib at FreeBSD.org>
AuthorDate: 2021-02-28 00:12:43 +0000
Commit:     Konstantin Belousov <kib at FreeBSD.org>
CommitDate: 2021-03-21 17:54:13 +0000

    Do not call nameicap_tracker_add() for dotdot case.
    
    Tested by:      pho
    
    (cherry picked from commit 59e749428111c029116a4302a544c7cc18b33772)
---
 sys/kern/vfs_lookup.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/vfs_lookup.c b/sys/kern/vfs_lookup.c
index 23e8ac95669c..cc0fe415365a 100644
--- a/sys/kern/vfs_lookup.c
+++ b/sys/kern/vfs_lookup.c
@@ -1143,8 +1143,10 @@ success:
 			goto bad2;
 		}
 	}
-	if (ndp->ni_vp != NULL && ndp->ni_vp->v_type == VDIR)
-		nameicap_tracker_add(ndp, ndp->ni_vp);
+	if (ndp->ni_vp != NULL && ndp->ni_vp->v_type == VDIR) {
+		if ((cnp->cn_flags & ISDOTDOT) == 0)
+			nameicap_tracker_add(ndp, ndp->ni_vp);
+	}
 	return (0);
 
 bad2: