linux-kernel - Re: [syzbot] [jfs?] KASAN: slab-out-of-bounds Read in ea

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Message-ID: <2024051411-malt-purse-7444@gregkh>
Date: Tue, 14 May 2024 12:12:26 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: syzbot <syzbot+9dfe490c8176301c1d06@...kaller.appspotmail.com>
Cc: jfs-discussion@...ts.sourceforge.net, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, shaggy@...nel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [jfs?] KASAN: slab-out-of-bounds Read in ea_get (2)

On Fri, May 03, 2024 at 11:51:33AM -0700, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    6a71d2909427 Merge branch 'for-next/core' into for-kernelci
> git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
> console output: https://syzkaller.appspot.com/x/log.txt?x=17374a40980000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=fca646cf17cc616b
> dashboard link: https://syzkaller.appspot.com/bug?extid=9dfe490c8176301c1d06
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: arm64
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12f9a8a7180000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=10f932a0980000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/c77d21fa1405/disk-6a71d290.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/429fcd369816/vmlinux-6a71d290.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/d3d8a4b85112/Image-6a71d290.gz.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/ba0e4fef7b4b/mount_0.gz
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+9dfe490c8176301c1d06@...kaller.appspotmail.com

Proposed fix sent here:
	https://lore.kernel.org/r/2024051433-slider-cloning-98f9@gregkh