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b=IPA0AZuv2jlRq1y4r1GyCbstGQvj1i/43ql3kFZp5AnOXOfX69Hgrr2Bo2b8RhRfo hozPxnQnfO2D65PE8odXXjG8zu/XhnUjjA3gtr5plBy+QJZvL24L7Jg+2sgCKezZvU U1PIitXd6oQNaU2FcYZnDxU/PsgovGsg7HQpWavI= Date: Mon, 7 Sep 2026 19:25:17 -0700 From: Andrew Morton To: syzbot 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 Message-Id: <20260907192517.564ea15aa8c9d47669b3a81f@linux-foundation.org> In-Reply-To: <6a9f6315.6e6c5f9e.28f11f.0002.GAE@google.com> References: <6a9f6315.6e6c5f9e.28f11f.0002.GAE@google.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: C6C91180006 X-Stat-Signature: d3w3qjurdgx1iobirrj51kq7ee4hf1q5 X-HE-Tag: 1788834319-308963 X-HE-Meta: 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 2Jzr5Y1i 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 4ybvILuP eSMqBKmyIBjjTDpbUv8r3g== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 07 Sep 2026 18:21:25 -0700 syzbot 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