git: 39e8c2a29a86 - main - cleanvar: Be more careful when cleaning up /var.

The branch main has been updated by delphij:

URL: https://cgit.FreeBSD.org/src/commit/?id=39e8c2a29a860bdb69ffcfbc06de4d4ad103b458

commit 39e8c2a29a860bdb69ffcfbc06de4d4ad103b458
Author:     Xin LI <delphij@FreeBSD.org>
AuthorDate: 2023-02-13 04:56:17 +0000
Commit:     Xin LI <delphij@FreeBSD.org>
CommitDate: 2023-02-13 04:56:17 +0000

    cleanvar: Be more careful when cleaning up /var.
    
    The cleanvar script uses find -delete to remove stale files under /var,
    which could lead to unwanted removal of files in some unusual scenarios.
    For example, when a mounted fdescfs(5) is present under /var/run/samba/fd,
    find(1) could descend into a directory that is out of /var/run and remove
    files that should not be removed.
    
    To mitigate this, modify the script to use find -x, which restricts the
    find scope to one file system only instead of descending into mounted
    file systems.
    
    PR:             269213
    MFC after:      1 week
---
 libexec/rc/rc.d/cleanvar | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libexec/rc/rc.d/cleanvar b/libexec/rc/rc.d/cleanvar
index fcfd365268c3..a682021ce5f6 100755
--- a/libexec/rc/rc.d/cleanvar
+++ b/libexec/rc/rc.d/cleanvar
@@ -31,15 +31,15 @@ cleanvar_start()
 {
 	if [ -d /var/run -a ! -f /var/run/clean_var ]; then
 		# Skip over logging sockets
-		find /var/run \( -type f -or -type s ! -name log -and ! -name logpriv \) -delete
+		find -x /var/run \( -type f -or -type s ! -name log -and ! -name logpriv \) -delete
 		>/var/run/clean_var
 	fi
 	if [ -d /var/spool/lock -a ! -f /var/spool/lock/clean_var ]; then
-		find /var/spool/lock -type f -delete
+		find -x /var/spool/lock -type f -delete
 		>/var/spool/lock/clean_var
 	fi
 	if [ -d /var/spool/uucp/.Temp ]; then
-		find /var/spool/uucp/.Temp -delete
+		find -x /var/spool/uucp/.Temp -delete
 	fi
 }