Re: [syzbot] [integrity?] [lsm?] possible deadlock in process_measurement (4)

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On Sat, 28 Sep 2024 00:32:30 -0700 syzbot <syzbot+1cd571a672400ef3a930@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

> Hello,
> 
> syzbot found the following issue on:

Thanks.

> HEAD commit:    97d8894b6f4c Merge tag 'riscv-for-linus-6.12-mw1' of git:/..
> git tree:       upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=14138a80580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=bc30a30374b0753
> dashboard link: https://syzkaller.appspot.com/bug?extid=1cd571a672400ef3a930
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=118fd2a9980000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1038299f980000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/f181c147328d/disk-97d8894b.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/b8b0160d9b09/vmlinux-97d8894b.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/c5dab0d4f811/bzImage-97d8894b.xz
> 
> The issue was bisected to:
> 
> commit ea7e2d5e49c05e5db1922387b09ca74aa40f46e2
> Author: Shu Han <ebpqwerty472123@xxxxxxxxx>
> Date:   Tue Sep 17 09:41:04 2024 +0000
> 
>     mm: call the security_mmap_file() LSM hook in remap_file_pages()

That commit has cc:stable.

Can I suggest that you change sysbot so it includes a cc:stable if the
faulty commit had cc:stable?  If Greg agrees that would be useful?






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