From: Andrew Morton <akpm@linux-foundation.org>
To: syzbot <syzbot+c6879dc677a017f0a21b@syzkaller.appspotmail.com>
Cc: jannh@google.com, liam@infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, ljs@kernel.org,
pfalcato@suse.de, syzkaller-bugs@googlegroups.com,
vbabka@kernel.org
Subject: Re: [syzbot] [mm?] WARNING in vma_add_pgoff
Date: Mon, 7 Sep 2026 19:25:17 -0700 [thread overview]
Message-ID: <20260907192517.564ea15aa8c9d47669b3a81f@linux-foundation.org> (raw)
In-Reply-To: <6a9f6315.6e6c5f9e.28f11f.0002.GAE@google.com>
On Mon, 07 Sep 2026 18:21:25 -0700 syzbot <syzbot+c6879dc677a017f0a21b@syzkaller.appspotmail.com> wrote:
> syzbot found the following issue on:
>
> HEAD commit: 5445d6419962 arm64: Don't read GMID_EL1 when MTE is disabled
> 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=1517ecf9580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=56ed23170c168d4c
> dashboard link: https://syzkaller.appspot.com/bug?extid=c6879dc677a017f0a21b
> compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
> userspace arch: arm64
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=147ad125580000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=127ad125580000
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/e8b70e3bd109/disk-5445d641.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/e5227e56ac93/vmlinux-5445d641.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/54905f78be59/Image-5445d641.gz.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+c6879dc677a017f0a21b@syzkaller.appspotmail.com
>
> ------------[ cut here ]------------
> WARNING: mm/vma.h:277 at assert_sane_pgoff mm/vma.h:277 [inline], CPU#1: syz.0.17/4912
> WARNING: mm/vma.h:277 at vma_set_pgoff mm/vma.h:283 [inline], CPU#1: syz.0.17/4912
> WARNING: mm/vma.h:277 at vma_add_pgoff+0x50c/0x700 mm/vma.h:314, CPU#1: syz.0.17/4912
Thinking Lorenzo already fixed this.
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 35b0fb391b0df57383bc15985bb769f4555c97ba
next prev parent reply other threads:[~2026-09-08 2:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-08 1:21 [syzbot] [mm?] WARNING in vma_add_pgoff syzbot
2026-09-08 2:25 ` Andrew Morton [this message]
2026-09-08 4:15 ` syzbot
2026-09-08 9:25 ` Lorenzo Stoakes (ARM)
2026-09-08 9:32 ` Vlastimil Babka (SUSE)
2026-09-08 10:24 ` Lorenzo Stoakes (ARM)
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