From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41165282F01 for ; Mon, 5 Oct 2026 05:28:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791178105; cv=none; b=mo5YC2x7eyQ5IY2+7QO+vEY3UXFZEIZPmXjE6RfFl3Q7k4u82dOiDk2j54IpDHbovBiPKccKa60H2+sXIWFRUcFrqnTPyIziAappOuwDPMSF13FyR7thQ79L73aOJRM3g3yPkymzq/W04507tdlZfzdYq4FHz3ODpVRM1gGK5PE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791178105; c=relaxed/simple; bh=AIYWRZ4YPnh9ZCVIIvCg/hpg7gMM4O8IM7/Jq8WPxCs=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=lDp0P/1400WY7SQqsfOUY4Y6nFZjOPZDNgTydbWA4pxJ3njx89GuoUpObhn/G3hw+4gawoVl3uQO8mist+zBHx8dEWmGvf8JvSMpc7Bjc9KnnVPZF1psahXh3hc+7Wl5IUSvREkMF4fimMfjIdX/dzTYzCbXp6VjtI6U2RvqqUw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.160.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oa1-f72.google.com with SMTP id 586e51a60fabf-46a12cfc288so1678900fac.2 for ; Sun, 04 Oct 2026 22:28:23 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791178103; x=1791782903; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=BkyXZbYMCtvs8D6wKoOix7C+Vk31t3PribzbBIf6BP8=; b=o9assm0s/ytaUktjpG22LisK2j4F7kL0IrvK0/EmaBEDCPgClcplhRdXi4q4/l1QiH m9r26JYPfyznKZjF8GdqGDItwfbcgKIhRfvO1klg3kPS2+uB6DdhFeN7tYqRxZLqF/5l Az8SOYOAU7YWHVi+dqCo33yC/fLSTSJvaG0r9Hb6kPnXvr6Nuj8JnXncAlbWz7DUtwg6 T/wryYwnfdwBL5lDGWNz1e7/XZyw/x4zoI9HVXiDOQH/zt92/U9P6GNrR7SlLi9shqq/ ynea53gZ5oQ2DJxtuTe8MWJqK8Q35iOaH7rSilqY1T2j6HneiPymbrLS4fNhXHOh6v9J CwmA== X-Forwarded-Encrypted: i=1; AKwUvBzfe94Zfjsdyct4BJIrdd8qNFgQ/0GZDexhGUGJEGjIng5jK9bNRoezCmugaUmk1Y6LBotm1kREDm82gf0=@vger.kernel.org X-Gm-Message-State: AFuF++luYsgUcpKTMLJDAmWhZwMiGZKs+oXDfgQesiw2X2y5rD8NYCtG QxKgkPo5cloZui9jWlVaB4rk1h+00hLBfbDaDd+7L4Ov24HV7wGC2NF6ZSsWN9qBNr0muY9Uuuf q23kVmSm1kbxGmGcU4Q0SMKLdGhpTrKSeg+GSNkMBV/ak0qxgxzf1TQfHX9Q= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:1a1d:b0:4cb:f21b:6f8d with SMTP id 5614622812f47-4f529d35c9amr8250049b6e.32.1791178102976; Sun, 04 Oct 2026 22:28:22 -0700 (PDT) Date: Sun, 04 Oct 2026 22:28:22 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6ac33576.53659fcc.25f34.0004.GAE@google.com> Subject: [syzbot] [pm?] kernel BUG in mark_free_pages From: syzbot To: lenb@kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, pavel@kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 6addb4f38557 Merge tag 'edac_urgent_for_v7.3_rc6' of git:/.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=16d3d7f5580000 kernel config: https://syzkaller.appspot.com/x/.config?x=23e5acac5c98285f dashboard link: https://syzkaller.appspot.com/bug?extid=609c80047e3e808b465c compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=121d2835580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=161d2835580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/484fafd2304b/disk-6addb4f3.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/3a897e82997f/vmlinux-6addb4f3.xz kernel image: https://storage.googleapis.com/syzbot-assets/57fc9f6de4c3/bzImage-6addb4f3.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+609c80047e3e808b465c@syzkaller.appspotmail.com Freezing user space processes Freezing user space processes completed (elapsed 0.009 seconds) OOM killer disabled. PM: hibernation: Preallocating image memory page:ffffea0005400000 is uninitialized and poisoned page dumped because: VM_BUG_ON_PAGE(PagePoisoned(page)) There is not page extension available. ------------[ cut here ]------------ kernel BUG at ./include/linux/mm.h:2402! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5632 Comm: syz-executor292 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2026 RIP: 0010:page_to_nid include/linux/mm.h:2402 [inline] RIP: 0010:page_zone include/linux/mm.h:2622 [inline] RIP: 0010:mark_free_pages+0x49a/0x4b0 kernel/power/snapshot.c:1266 Code: 5d e9 3a b9 44 0a e8 15 c9 22 00 90 0f 0b e8 0d fe 41 0a e8 08 c9 22 00 48 8b 7c 24 08 48 c7 c6 64 6c 48 8e e8 97 db 82 ff 90 <0f> 0b e8 ef c8 22 00 90 0f 0b e8 e7 c8 22 00 90 0f 0b 0f 1f 40 00 RSP: 0018:ffffc900035a7ad8 EFLAGS: 00010046 RAX: 26156de6b9890800 RBX: 0000000000010000 RCX: 26156de6b9890800 RDX: 0000000000000000 RSI: 8000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8f6917a3 R09: 1ffffffff1ed22f4 R10: dffffc0000000000 R11: fffffbfff1ed22f5 R12: ffff88823fff8100 R13: 0000000000150000 R14: ffffffffffffffff R15: 0300000000000000 FS: 00007f23975186c0(0000) GS:ffff888124cc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe53995418 CR3: 0000000021bc3000 CR4: 0000000000350ef0 Call Trace: count_data_pages kernel/power/snapshot.c:1417 [inline] hibernate_preallocate_memory+0x14f/0x750 kernel/power/snapshot.c:1859 hibernation_snapshot+0xd5/0x3d0 kernel/power/hibernate.c:416 hibernate+0x28f/0x680 kernel/power/hibernate.c:813 state_store+0x234/0x290 kernel/power/main.c:821 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f23975400a9 Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 d0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f23975181d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f23975f0b48 RCX: 00007f23975400a9 RDX: 0000000000000005 RSI: 0000200000000100 RDI: 0000000000000003 RBP: 00007f23975f0b40 R08: 35203a6b63617473 R09: 35203a6b63617473 R10: 35203a6b63617473 R11: 0000000000000246 R12: 00007f23975c2378 R13: 0000200000000500 R14: 0000200000000600 R15: 00656e696c66666f Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:page_to_nid include/linux/mm.h:2402 [inline] RIP: 0010:page_zone include/linux/mm.h:2622 [inline] RIP: 0010:mark_free_pages+0x49a/0x4b0 kernel/power/snapshot.c:1266 Code: 5d e9 3a b9 44 0a e8 15 c9 22 00 90 0f 0b e8 0d fe 41 0a e8 08 c9 22 00 48 8b 7c 24 08 48 c7 c6 64 6c 48 8e e8 97 db 82 ff 90 <0f> 0b e8 ef c8 22 00 90 0f 0b e8 e7 c8 22 00 90 0f 0b 0f 1f 40 00 RSP: 0018:ffffc900035a7ad8 EFLAGS: 00010046 RAX: 26156de6b9890800 RBX: 0000000000010000 RCX: 26156de6b9890800 RDX: 0000000000000000 RSI: 8000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8f6917a3 R09: 1ffffffff1ed22f4 R10: dffffc0000000000 R11: fffffbfff1ed22f5 R12: ffff88823fff8100 R13: 0000000000150000 R14: ffffffffffffffff R15: 0300000000000000 FS: 00007f23975186c0(0000) GS:ffff888124cc6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe53995418 CR3: 0000000021bc3000 CR4: 0000000000350ef0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup