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Wed, 07 Oct 2026 01:06:41 -0700 (PDT) Date: Wed, 07 Oct 2026 01:06:41 -0700 In-Reply-To: <6987d9a1.a00a0220.34fa92.0039.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ac5fd91.34119e79.8a1d6.0000.GAE@google.com> Subject: Re: [syzbot] [mm?] BUG: Bad rss-counter state (6) From: syzbot To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: c5bmnf7kt7cgkb7c1s7hcrf4i49i54wk X-Rspamd-Queue-Id: 31B092000B X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1791360402-423710 X-HE-Meta: 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 jQ/t8O/z 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 d2brqAjA CE8rVBS1y/aiqaxzRHOYPMNOoQXIO+lpRGoMxaTYTsln4v89hARueq+5t0BVT8U6xnpjoAighIC7nLlsXKL52ZXDngWC/INuxzbrGthxN25q3BGD3qlxVYtCPiR59VE2OmdkNXDxIQfyLPrLYB58EvzUi6KhjIls8U3eucZdqQIPROHIN5eiC+oalp0RKHv7f8cgKb8w6NGfJKEL/+mjwjdDv+0osuY/59yTVc0mLoM9p3HQMEjSJal5FF2jjxOMnE+dzedTVDI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot has found a reproducer for the following issue on: HEAD commit: 71c3e5409eef Merge remote-tracking branch 'will/for-next/p.. 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=137d5f25580000 kernel config: https://syzkaller.appspot.com/x/.config?x=c7205f05c11fb4dd dashboard link: https://syzkaller.appspot.com/bug?extid=5981772e2b70777a3b01 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=177d5f25580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/20ff6159ce99/disk-71c3e540.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/1d6172672705/vmlinux-71c3e540.xz kernel image: https://storage.googleapis.com/syzbot-assets/923d5e083e1b/Image-71c3e540.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5981772e2b70777a3b01@syzkaller.appspotmail.com BUG: Bad rss-counter state mm:00000000950a6f7b type:MM_ANONPAGES val:2 Comm:syz-executor Pid:4828 BUG: non-zero pgtables_bytes on freeing mm: 4096 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing.