Re: [syzbot] [mm?] KASAN: slab-use-after-free Read in __vma_reservation_common

From: Vishal Moola
Date: Thu Apr 18 2024 - 14:45:48 EST


On Fri, Apr 12, 2024 at 06:32:33AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 11cb68ad52ac Add linux-next specific files for 20240408
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=13a6f483180000
> kernel config: https://syzkaller.appspot.com/x/.config?x=727d5608101b5d77
> dashboard link: https://syzkaller.appspot.com/bug?extid=ad1b592fc4483655438b
> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/4e90f2d3b1ef/disk-11cb68ad.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/d886b454e2cc/vmlinux-11cb68ad.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/ed94857c6f92/bzImage-11cb68ad.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+ad1b592fc4483655438b@xxxxxxxxxxxxxxxxxxxxxxxxx

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git linus