Re: [syzbot] [gfs2?] UBSAN: shift-out-of-bounds in gfs2_dir_read (2)

[Andrew Price]

On 14/07/2025 19:31, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    347e9f5043c8 Linux 6.16-rc6
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=11afb18c580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=f62a2ef17395702a
> dashboard link: https://syzkaller.appspot.com/bug?extid=4708579bb230a0582a57
> compiler:       Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=172470f0580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16d0fd82580000


#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2.git for-next