The branch stable/12 has been updated by rew:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=f8145bd4bcc025fbb1750d9daf75e92916db4192

commit f8145bd4bcc025fbb1750d9daf75e92916db4192
Author:     Robert Wing <[email protected]>
AuthorDate: 2021-06-03 01:41:31 +0000
Commit:     Robert Wing <[email protected]>
CommitDate: 2021-11-20 18:24:06 +0000

    fsck_ufs: fix segfault with gjournal
    
    The segfault was being hit in closedisk() while trying to free a
    non-pointer.
    
    The fix for this bug differs between stable/12 and stable/13.
    
    PR:             245907
    Submitted by:   [email protected]
    Differential Revision:  https://reviews.freebsd.org/D30537
    
    (cherry picked from commit 441e69e419effac0225a45f4cdb948280b8ce5ab)
---
 sbin/fsck_ffs/gjournal.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sbin/fsck_ffs/gjournal.c b/sbin/fsck_ffs/gjournal.c
index b9bfd1bfcced..dca08278569d 100644
--- a/sbin/fsck_ffs/gjournal.c
+++ b/sbin/fsck_ffs/gjournal.c
@@ -246,7 +246,6 @@ closedisk(void)
                err(1, "sbwrite(%s)", devnam);
        if (ufs_disk_close(diskp) == -1)
                err(1, "ufs_disk_close(%s)", devnam);
-       free(diskp);
        diskp = NULL;
        fs = NULL;
 }

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