linux-kernel - Re: [syzbot] [mm?] [v9fs?] BUG: stack guard page was hit in sys

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Message-ID: <67b87d82.050a0220.14d86d.04d4.GAE@google.com>
Date: Fri, 21 Feb 2025 05:20:02 -0800
From: syzbot <syzbot+1f18c9b1bb51239d82f2@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, asmadeus@...ewreck.org, bharathsm@...rosoft.com, 
	brauner@...nel.org, ceph-devel@...r.kernel.org, dhowells@...hat.com, 
	ericvh@...nel.org, idryomov@...il.com, jlayton@...nel.org, 
	linux-afs@...ts.infradead.org, linux-cifs@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, linux-trace-kernel@...r.kernel.org, 
	linux_oss@...debyte.com, lucho@...kov.net, marc.dionne@...istor.com, 
	mathieu.desnoyers@...icios.com, mhiramat@...nel.org, netfs@...ts.linux.dev, 
	pc@...guebit.com, ronniesahlberg@...il.com, rostedt@...dmis.org, 
	samba-technical@...ts.samba.org, sfrench@...ba.org, sprasad@...rosoft.com, 
	syzkaller-bugs@...glegroups.com, tom@...pey.com, v9fs@...ts.linux.dev, 
	xiubli@...hat.com
Subject: Re: [syzbot] [mm?] [v9fs?] BUG: stack guard page was hit in sys_openat

syzbot suspects this issue was fixed by commit:

commit e2d46f2ec332533816417b60933954173f602121
Author: David Howells <dhowells@...hat.com>
Date:   Mon Dec 16 20:41:17 2024 +0000

    netfs: Change the read result collector to only use one work item

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15cb3ae4580000
start commit:   9528d418de4d Merge tag 'x86_urgent_for_v6.13' of git://git..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=d7f05e16f48c5834
dashboard link: https://syzkaller.appspot.com/bug?extid=1f18c9b1bb51239d82f2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17808824580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=129252b0580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: netfs: Change the read result collector to only use one work item

For information about bisection process see: https://goo.gl/tpsmEJ#bisection