From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id F00ADC433EF for ; Tue, 1 Mar 2022 13:57:29 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 602D08D0002; Tue, 1 Mar 2022 08:57:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5B2D38D0001; Tue, 1 Mar 2022 08:57:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4A1138D0002; Tue, 1 Mar 2022 08:57:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.25]) by kanga.kvack.org (Postfix) with ESMTP id 3B9738D0001 for ; Tue, 1 Mar 2022 08:57:29 -0500 (EST) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 184CB239B8 for ; Tue, 1 Mar 2022 13:57:29 +0000 (UTC) X-FDA: 79195969818.06.D024CB5 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by imf15.hostedemail.com (Postfix) with ESMTP id 9A8A4A0009 for ; Tue, 1 Mar 2022 13:57:28 +0000 (UTC) Received: by mail-io1-f69.google.com with SMTP id c13-20020a5e8f0d000000b00644c39c4c69so5491536iok.4 for ; Tue, 01 Mar 2022 05:57:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=COnmWy2PDlokv2F1f1FF/zq+rFMiwHy/7fWAZjLIy2g=; b=h2Z0TeIPR24xY5Y1NIga6TXciYNJwyx+nSxHzL1XbV94StitxSK+qm7AAGFkioyynB rGUy5cm+Mpjjgq3gWDhMz5u4/IDhr1dxCex8jWxT/oG7BZpJcoUCOknVzzRhSTYZEr18 0PFMjGpyyCka8WQmNjzSXeASldOCusYTXW3T3vJKMEsakZs+0Wwa4hc7s13f7DoN1y++ EDEpi9PQRQvgjC9o9AdRsYAmJ2nBh9bPZkXRtaD/Ai6qWu7erg8BOaQK+8Mw8qB4tjTI I1hBfWiq18KGlQE9G2qpvV2iKz2YXgQJvv6PxC+aUYwHu/N6m4AYTk0f3jciua1eKGA6 VNQw== X-Gm-Message-State: AOAM532RnnYElKd6gfY9QJY0xi5rIU7UJNqLdyadILpYK6Zi+gpdXTNZ MlLnqvAHpQVJI5ncgId5II3HzgvKJ3Y8FrjZ4XiJtDVZzfRc X-Google-Smtp-Source: ABdhPJzrxtqihhuYiMNQ66RtSpbdAMSQXwzQVXnsEW1a3OQ4TJi5G+vM5W956sgkrHXXD58hy+79XIbB4bJUJYbzqaaOwzBEd7c8 MIME-Version: 1.0 X-Received: by 2002:a5e:c64a:0:b0:640:7b5a:3446 with SMTP id s10-20020a5ec64a000000b006407b5a3446mr19135818ioo.82.1646143047916; Tue, 01 Mar 2022 05:57:27 -0800 (PST) Date: Tue, 01 Mar 2022 05:57:27 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009ee0ca05d9288b83@google.com> Subject: [syzbot] kernel BUG in hugepage_add_anon_rmap From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 9A8A4A0009 X-Rspam-User: Authentication-Results: imf15.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf15.hostedemail.com: domain of 3RyYeYgkbACQSYZKALLERAPPID.GOOGLEUSERCONTENT.COM@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.69 as permitted sender) smtp.mailfrom=3RyYeYgkbACQSYZKALLERAPPID.GOOGLEUSERCONTENT.COM@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Stat-Signature: 79xmtqojpyztjs5zjxfxjuwf74eq4pxc X-HE-Tag: 1646143048-317428 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following issue on: HEAD commit: 196d330d7fb1 Add linux-next specific files for 20220222 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=15b0618a700000 kernel config: https://syzkaller.appspot.com/x/.config?x=45b71d0aea81d553 dashboard link: https://syzkaller.appspot.com/bug?extid=d7ed29a6231d3747fb31 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d7ed29a6231d3747fb31@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at mm/rmap.c:2330! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 4289 Comm: syz-executor.0 Not tainted 5.17.0-rc5-next-20220222-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hugepage_add_anon_rmap+0x1f5/0x240 mm/rmap.c:2330 Code: 89 ef e8 6e ad f8 ff 0f 0b e8 77 b2 c4 ff 48 83 eb 01 e9 a6 fe ff ff e8 69 b2 c4 ff 48 83 eb 01 e9 ff fe ff ff e8 5b b2 c4 ff <0f> 0b e8 54 b2 c4 ff 0f 0b e8 4d b2 c4 ff 49 8d 6c 24 ff eb b4 48 RSP: 0018:ffffc9000fa8f9b8 EFLAGS: 00010216 RAX: 0000000000002b78 RBX: 0000000000000000 RCX: ffffc90003bd1000 RDX: 0000000000040000 RSI: ffffffff81b47f75 RDI: 0000000000000003 RBP: ffffea0001008040 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81b47eab R11: 0000000000000000 R12: ffff88801e231210 R13: 0000000020400000 R14: ffff8880738f8700 R15: 0000000000000000 FS: 00007f1a19594700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f33cc0df300 CR3: 000000001ca70000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: remove_migration_pte+0x5fd/0xc50 mm/migrate.c:234 rmap_walk_anon+0x44b/0x9e0 mm/rmap.c:2236 rmap_walk+0x92/0xd0 mm/rmap.c:2302 remove_migration_ptes mm/migrate.c:271 [inline] unmap_and_move_huge_page mm/migrate.c:1259 [inline] migrate_pages+0x1709/0x4030 mm/migrate.c:1379 do_mbind mm/mempolicy.c:1334 [inline] kernel_mbind+0x4d7/0x7d0 mm/mempolicy.c:1481 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f1a18489059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1a19594168 EFLAGS: 00000246 ORIG_RAX: 00000000000000ed RAX: ffffffffffffffda RBX: 00007f1a1859c030 RCX: 00007f1a18489059 RDX: 0000000000000000 RSI: 0000000000800000 RDI: 0000000020001000 RBP: 00007f1a184e308d R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe5da8cc9f R14: 00007f1a19594300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hugepage_add_anon_rmap+0x1f5/0x240 mm/rmap.c:2330 Code: 89 ef e8 6e ad f8 ff 0f 0b e8 77 b2 c4 ff 48 83 eb 01 e9 a6 fe ff ff e8 69 b2 c4 ff 48 83 eb 01 e9 ff fe ff ff e8 5b b2 c4 ff <0f> 0b e8 54 b2 c4 ff 0f 0b e8 4d b2 c4 ff 49 8d 6c 24 ff eb b4 48 RSP: 0018:ffffc9000fa8f9b8 EFLAGS: 00010216 RAX: 0000000000002b78 RBX: 0000000000000000 RCX: ffffc90003bd1000 RDX: 0000000000040000 RSI: ffffffff81b47f75 RDI: 0000000000000003 RBP: ffffea0001008040 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81b47eab R11: 0000000000000000 R12: ffff88801e231210 R13: 0000000020400000 R14: ffff8880738f8700 R15: 0000000000000000 FS: 00007f1a19594700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f33cc0df300 CR3: 000000001ca70000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.