From: syzbot <syzbot+4fae162886e497f72228@syzkaller.appspotmail.com>
To: eadavis@sina.com, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] kernel BUG in create_default_group...
Date: Tue, 20 Oct 2026 22:50:02 -0700 [thread overview]
Message-ID: <6ad8528a.9f19f86a.27ef6.0001.GAE@google.com> (raw)
In-Reply-To: <20261021053053.50220-1-eadavis@sina.com>
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
kernel BUG in create_default_group...
Warning: Permanently added '[localhost]:36728' (ED25519) to the list of known hosts.
[*] Starting reproducer for kernel BUG in create_default_group...
[+] mkdir /sys/kernel/config successful or directory already exists.
[+] configfs mounted or already mounted.
[+] mkdir /sys/kernel/debug successful or directory already exists.
[+] debugfs mounted or already mounted.
[+] Successfully wrote 'N
' to /sys/kernel/debug/failslab/ignore-gfp-wait
[+] Successfully wrote 'N
' to /sys/kernel/debug/failslab/cache-filter
[+] Successfully wrote '-1
' to /sys/kernel/debug/failslab/times
[+] Pre-clean of /sys/kernel/config/nvmet/ports/1 successful.
[+] Online CPU count: 1
[+] Started 6 background racing helper threads.
[*] Iterating fault injection points (fail-nth 1..80 with concurrent race)...
[*] Testing fail-nth = 1 (1 attempts)...
[*] Testing fail-nth = 2 (1 attempts)...
[*] Testing fail-nth = 3 (1 attempts)...
[*] Testing fail-nth = 4 (1 attempts)...
[*] Testing fail-nth = 5 (1 attempts)...
[*] Testing fail-nth = 6 (1 attempts)...
[*] Testing fail-nth = 7 (1 attempts)...
[*] Testing fail-nth = 8 (1 attempts)...
[*] Testing fail-nth = 9 (1 attempts)...
[*] Testing fail-nth = 10 (1 attempts)...
[*] Testing fail-nth = 11 (1 attempts)...
[*] Testing fail-nth = 12 (1 attempts)...
[*] Testing fail-nth = 13 (1 attempts)...
[*] Testing fail-nth = 14 (1 attempts)...
[*] Testing fail-nth = 15 (1 attempts)...
[*] Testing fail-nth = 16 (1 attempts)...
[*] Testing fail-nth = 17 (1 attempts)...
[*] Testing fail-nth = 18 (1 attempts)...
[*] Testing fail-nth = 19 (1 attempts)...
[*] Testing fail-nth = 20 (1 attempts)...
[*] Testing fail-nth = 21 (1 attempts)...
[*] Testing fail-nth = 22 (1 attempts)...
[*] Testing fail-nth = 23 (1 attempts)...
[*] Testing fail-nth = 24 (1 attempts)...
[*] Testing fail-nth = 25 (1 attempts)...
[*] Testing fail-nth = 26 (1 attempts)...
[*] Testing fail-nth = 27 (1 attempts)...
[*] Testing fail-nth = 28 (1 attempts)...
[*] Testing fail-nth = 29 (1 attempts)...
[*] Testing fail-nth = 30 (1 attempts)...
[*] Testing fail-nth = 31 (1 attempts)...
[*] Testing fail-nth = 32 (1 attempts)...
[*] Testing fail-nth = 33 (1 attempts)...
[*] Testing fail-nth = 34 (1 attempts)...
[*] Testing fail-nth = 35 (1 attempts)...
[*] Testing fail-nth = 36 (1 attempts)...
[*] Testing fail-nth = 37 (1 attempts)...
[*] Testing fail-nth = 38 (12 attempts)...
[*] Testing fail-nth = 39 (12 attempts)...
[*] Testing fail-nth = 40 (12 attempts)...
[*] Testing fail-nth = 41 (12 attempts)...
[*] Testing fail-nth = 42 (12 attempts)...
[*] Testing fail-nth = 43 (12 attempts)...
[*] Testing fail-nth = 44 (12 attempts)...
[*] Testing fail-nth = 45 (12 attempts)...
[*] Testing fail-nth = 46 (12 attempts)...
[*] Testing fail-nth = 47 (12 attempts)...
[*] Testing fail-nth = 48 (12 attempts)...
[*] Testing fail-nth = 49 (12 attempts)...
[*] Testing fail-nth = 50 (12 attempts)...
[*] Testing fail-nth = 51 (1 attempts)...
[*] Testing fail-nth = 52 (1 attempts)...
[*] Testing fail-nth = 53 (1 attempts)...
[*] Testing fail-nth = 54 (1 attempts)...
[*] Testing fail-nth = 55 (1 attempts)...
[*] Testing fail-nth = 56 (1 attempts)...
[*] Testing fail-nth = 57 (1 attempts)...
[*] Testing fail-nth = 58 (1 attempts)...
[*] Testing fail-nth = 59 (1 attempts)...
[*] Testing fail-nth = 60 (1 attempts)...
[*] Testing fail-nth = 61 (1 attempts)...
[*] Testing fail-nth = 62 (1 attempts)...
[*] Testing fail-nth = 63 (1 attempts)...
[*] Testing fail-nth = 64 (1 attempts)...
[*] Testing fail-nth = 65 (1 attempts)...
[*] Testing fail-nth = 66 (1 attempts)...
[*] Testing fail-nth = 67 (1 attempts)...
[*] Testing fail-nth = 68 (1 attempts)...
Tested on:
commit: 58161ead Merge tag 'drm-fixes-2026-10-17' of https://g..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=17262831580000
kernel config: https://syzkaller.appspot.com/x/.config?x=4ccb65e03706547e
dashboard link: https://syzkaller.appspot.com/bug?extid=4fae162886e497f72228
compiler: Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=14c2bb05580000
next prev parent reply other threads:[~2026-10-21 5:50 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-19 18:08 [syzbot] kernel BUG in create_default_group syzbot
2026-10-21 5:30 ` Edward Adam Davis
2026-10-21 5:50 ` syzbot [this message]
2026-10-21 6:25 ` [PATCH] configfs: Delay the fop setting to prevent noise generated by open Edward Adam Davis
2026-10-22 10:16 ` [PATCH v2] configfs: Add revalidate for cached dentry to ensure it's ready Edward Adam Davis
2026-10-22 11:11 ` [PATCH v3] " Edward Adam Davis
2026-11-05 13:06 ` [PATCH] configfs: Delay the fop setting to prevent noise generated by open Breno Leitao
2026-10-21 9:40 ` [syzbot] kernel BUG in create_default_group Edward Adam Davis
2026-10-21 9:58 ` syzbot
2026-10-22 9:47 ` Edward Adam Davis
2026-10-22 10:04 ` syzbot
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6ad8528a.9f19f86a.27ef6.0001.GAE@google.com \
--to=syzbot+4fae162886e497f72228@syzkaller.appspotmail.com \
--cc=eadavis@sina.com \
--cc=linux-kernel@vger.kernel.org \
--cc=syzkaller-bugs@googlegroups.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.