linux-kernel - Re: [syzbot] [hfs?] [mm?] KASAN: slab-out-of-bounds Write in shmem_file_read

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Message-ID: <67530723.050a0220.a30f1.013f.GAE@google.com>
Date: Fri, 06 Dec 2024 06:16:03 -0800
From: syzbot <syzbot+3e719fc23ab95580e4c2@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, brauner@...nel.org, bvanassche@....org, 
	cascardo@...lia.com, chao@...nel.org, hughd@...gle.com, josef@...icpanda.com, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-mm@...ck.org, rdunlap@...radead.org, sandeen@...hat.com, 
	syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk, willy@...radead.org
Subject: Re: [syzbot] [hfs?] [mm?] KASAN: slab-out-of-bounds Write in shmem_file_read_iter

syzbot suspects this issue was fixed by commit:

commit 1c82587cb57687de3f18ab4b98a8850c789bedcf
Author: Thadeu Lima de Souza Cascardo <cascardo@...lia.com>
Date:   Thu Nov 7 11:41:09 2024 +0000

    hfsplus: don't query the device logical block size multiple times

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=174098df980000
start commit:   fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=4d90a36f0cab495a
dashboard link: https://syzkaller.appspot.com/bug?extid=3e719fc23ab95580e4c2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14903769180000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14f25d81180000

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

#syz fix: hfsplus: don't query the device logical block size multiple times

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