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 8C392C678D5 for ; Wed, 8 Mar 2023 13:40:47 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 01B4A6B0072; Wed, 8 Mar 2023 08:40:47 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id EE6B46B0074; Wed, 8 Mar 2023 08:40:46 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D874B6B007B; Wed, 8 Mar 2023 08:40:46 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id C084D6B0072 for ; Wed, 8 Mar 2023 08:40:46 -0500 (EST) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 740B140F91 for ; Wed, 8 Mar 2023 13:40:46 +0000 (UTC) X-FDA: 80545841292.06.70734BA Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by imf23.hostedemail.com (Postfix) with ESMTP id CA961140011 for ; Wed, 8 Mar 2023 13:40:43 +0000 (UTC) Authentication-Results: imf23.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf23.hostedemail.com: domain of 3W5AIZAkbAMQ289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.198 as permitted sender) smtp.mailfrom=3W5AIZAkbAMQ289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1678282843; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding:in-reply-to: references; bh=JmPMQpV14bZ7V4vdjMtIyt04KpDD160/Ar7BhRwdhwM=; b=mb32aucwc8FZ58AtOCZ/zAZs5Zf2DOgx0VtnBKqNUnPLL4zsne6Op154MpyLjP/mHXBCV+ boYS0VXG5Du6/nutbn6ne1Onaws/rTy40vF7/m2gmEI5Y5yUmPP7Y0MV+9HgiZ7h5WcQMF /GNxxd7/b/Bw4+0UjmRaSIPqPt3oqk4= ARC-Authentication-Results: i=1; imf23.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf23.hostedemail.com: domain of 3W5AIZAkbAMQ289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.198 as permitted sender) smtp.mailfrom=3W5AIZAkbAMQ289ukvvo1kzzsn.qyyqvo42o1myx3ox3.myw@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1678282843; a=rsa-sha256; cv=none; b=NNlmjqZJW9T04W+dbafzdpZw5EQj9N/mracq93/2hBLgJsSVb4BhOFm21PJx4mE2zP3/ME 9KZ4EBUdsrpyBgVOQCu67v/FO06gY2wx3HbJbw4oXQ/lJFo0XomGbE1EiBc7uMx8HsipPC QVpJxvoLpXipUTBBlwcJnPKEt0qw8wM= Received: by mail-il1-f198.google.com with SMTP id k13-20020a056e021a8d00b0031bae68b383so7574483ilv.18 for ; Wed, 08 Mar 2023 05:40:43 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1678282843; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=JmPMQpV14bZ7V4vdjMtIyt04KpDD160/Ar7BhRwdhwM=; b=1iM/jMbJwudtCcekp/ug3jAdH4OsvJ0M1zFqQsUrb0wWhrQQhLeFL4L7j2vdYjrL17 BAI1iBmrn7j7fH+yCUJBfK+ACXxwsbhz0uxDWCsgV8LwSzUuXrVySQFQhM0nUGc6X1WY 7ETUxcZbQIrLROzLOQdr4J4KRM3253+vtrLHTxlZzLnOun58PNGMlSxtVzuuGoJqFQXG UrQ+BlSSyhFAXPsWkUVXlIfZcoPmpdjiGTwjHcHCtxKHqOnb+eishBSq1BDRSq9nrQ7G zxegeG2roZgkdvMFpG2crnWxwO+fCX3ztbWJCPxkUoWOLMbPZX+qq92doln+42KPaR87 aIvQ== X-Gm-Message-State: AO0yUKV6olcGsLgguCOnHoRTX7Pgpkfxl2c45+kdyFJI6zb+HnlKjanW 9AzzZVpkptb4yXFXe/+oY/9aPLx/7oot3hW9ZOcraCiCE1W0 X-Google-Smtp-Source: AK7set/m2dG7flJ4CSW6cAgeamKhHsRE/RvfNSf88RN4ln/wG7VFRhAtmqyN60SD8R0Fh5uV2hxBqpjaKupAu6warhiOmtkgMSKr MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1091:b0:310:9d77:6063 with SMTP id r17-20020a056e02109100b003109d776063mr8618949ilj.5.1678282843004; Wed, 08 Mar 2023 05:40:43 -0800 (PST) Date: Wed, 08 Mar 2023 05:40:42 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000b0a65805f663ace6@google.com> Subject: [syzbot] [mm?] kernel BUG in find_mergeable_anon_vma 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-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: CA961140011 X-Stat-Signature: 8y7nukbyr1so5io965h4u5c4eib3jnfs X-HE-Tag: 1678282843-544192 X-HE-Meta: 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 Ai9sRlN5 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 ZfODl0Wa AYrJRi/m46Le4OlXCrAbogYRlCXvfmzo1aU8+LNq10FcjdIW3Va2ouQB1UrhsKCfLz6iC40F0gnv8FqBwwBKZPO0bC3vA7D84rEsru6ctGUT3iPu5Mr8/Zx0v7ll0+wo6ZSEm2zTwtqa+ypq519BQWq1hoVI+FLWU3PTp3LnqxU8iV2xWvvoj0cIYBDiuDkQ72M2B582OX/GKKZzURCbKpsoARE2wZsgRcSmjxABH4DYIH+jXrLQw89mGnhKYJMPfifdFtHNeDgamwGy//x+kS62+JmpZFMLejHXhXt8DThLx3k7NE2MB68UnGlko+hclGZB88yq7ewDypqGoq9KeIe/RQvZSi9fGkfUfJ9B4DoD1tHnqgu6CIa1gPxgnQWg 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: 0988a0ea7919 Merge tag 'for-v6.3-part2' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13fc4754c80000 kernel config: https://syzkaller.appspot.com/x/.config?x=cab35c936731a347 dashboard link: https://syzkaller.appspot.com/bug?extid=8d95422d3537159ca390 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=130602bcc80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10b61b54c80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/e2d28852dbc0/disk-0988a0ea.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9ad7e6fa3a8d/vmlinux-0988a0ea.xz kernel image: https://storage.googleapis.com/syzbot-assets/7430e1576859/bzImage-0988a0ea.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8d95422d3537159ca390@syzkaller.appspotmail.com pgoff 20000 file 0000000000000000 private_data 0000000000000000 flags: 0x8102172(write|mayread|maywrite|mayexec|growsdown|locked|account|softdirty) ------------[ cut here ]------------ kernel BUG at mm/mmap.c:1108! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 24456 Comm: syz-executor216 Not tainted 6.2.0-syzkaller-13467-g0988a0ea7919 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:find_mergeable_anon_vma+0x6f0/0x840 mm/mmap.c:1108 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 6b 48 3b 6b 50 0f 85 08 fb ff ff e9 06 fb ff ff e8 58 ad bf ff 48 89 ef e8 70 a5 fa ff <0f> 0b 4c 89 f7 e8 06 29 11 00 e9 d2 f9 ff ff e8 fc 28 11 00 e9 a0 RSP: 0018:ffffc9000b61f888 EFLAGS: 00010286 RAX: 0000000000000130 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816931bc RDI: 0000000000000005 RBP: ffff8880783f97e0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffc9000b61f8b0 R13: 1ffff920016c3f12 R14: ffff8880783f97e8 R15: fff0000000000fff FS: 00007fe0f1f58700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc5b9a8960 CR3: 000000002bd88000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __anon_vma_prepare+0x7d/0x580 mm/rmap.c:199 anon_vma_prepare include/linux/rmap.h:159 [inline] do_anonymous_page mm/memory.c:4050 [inline] handle_pte_fault mm/memory.c:4907 [inline] __handle_mm_fault+0x3a8f/0x3e60 mm/memory.c:5051 handle_mm_fault+0x2ba/0x9c0 mm/memory.c:5197 faultin_page mm/gup.c:925 [inline] __get_user_pages+0x4da/0xf30 mm/gup.c:1147 populate_vma_page_range+0x2df/0x420 mm/gup.c:1543 __mm_populate+0x105/0x3b0 mm/gup.c:1652 mm_populate include/linux/mm.h:3026 [inline] vm_mmap_pgoff+0x201/0x280 mm/util.c:547 ksys_mmap_pgoff+0x7d/0x5a0 mm/mmap.c:1410 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe0f1fa6959 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 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:00007fe0f1f582f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fe0f1fa6959 RDX: 0000000000000002 RSI: 0000000000001000 RDI: 0000000020002000 RBP: 00007fe0f202e3e8 R08: 00000000ffffffff R09: 0000000000000000 R10: 840000000000a132 R11: 0000000000000246 R12: 840000000000a132 R13: 00007fe0f202e3e0 R14: 00007fe0f202e3ec R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:find_mergeable_anon_vma+0x6f0/0x840 mm/mmap.c:1108 Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 6b 48 3b 6b 50 0f 85 08 fb ff ff e9 06 fb ff ff e8 58 ad bf ff 48 89 ef e8 70 a5 fa ff <0f> 0b 4c 89 f7 e8 06 29 11 00 e9 d2 f9 ff ff e8 fc 28 11 00 e9 a0 RSP: 0018:ffffc9000b61f888 EFLAGS: 00010286 RAX: 0000000000000130 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816931bc RDI: 0000000000000005 RBP: ffff8880783f97e0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffffc9000b61f8b0 R13: 1ffff920016c3f12 R14: ffff8880783f97e8 R15: fff0000000000fff FS: 00007fe0f1f58700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe0f1ffc01d CR3: 000000002bd88000 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches