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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97CACC4338F for ; Sat, 14 Aug 2021 11:07:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8360760F36 for ; Sat, 14 Aug 2021 11:07:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238126AbhHNLIC (ORCPT ); Sat, 14 Aug 2021 07:08:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:47780 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238090AbhHNLHw (ORCPT ); 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Sat, 14 Aug 2021 04:07:23 -0700 (PDT) Date: Sat, 14 Aug 2021 04:07:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fbad4305c982f836@google.com> Subject: [syzbot] BUG: unable to handle kernel paging request in alloc_huge_page From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mike.kravetz@oracle.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 92d00774360d Add linux-next specific files for 20210810 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12e2b4d9300000 kernel config: https://syzkaller.appspot.com/x/.config?x=a6933fa6f9a86ca9 dashboard link: https://syzkaller.appspot.com/bug?extid=57876cfc2dca0c6b2e6a compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f81581300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11419dfa300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+57876cfc2dca0c6b2e6a@syzkaller.appspotmail.com BUG: unable to handle page fault for address: fffffffffffffffc #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD b68f067 P4D b68f067 PUD b691067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6601 Comm: syz-executor361 Not tainted 5.14.0-rc5-next-20210810-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add include/linux/list.h:71 [inline] RIP: 0010:list_add include/linux/list.h:86 [inline] RIP: 0010:alloc_huge_page+0xdcb/0x11b0 mm/hugetlb.c:2821 Code: 00 0f 85 6b 03 00 00 48 89 ce 48 89 4a 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ee 03 80 3c 06 00 0f 85 2b 03 00 00 49 8d 7e 10 <49> 89 56 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 RSP: 0018:ffffc90002b8fb78 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: fffffffffffffffc RDX: ffffea0001fb0008 RSI: 1fffffffffffffff RDI: 0000000000000004 RBP: ffffc90002b8fd50 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81b6fda1 R11: 0000000000000000 R12: ffffffff90246a70 R13: 0000000000000001 R14: fffffffffffffff4 R15: ffffffff90246b48 FS: 00000000014e5300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffc CR3: 000000006eadf000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hugetlbfs_fallocate+0x6f3/0x12e0 fs/hugetlbfs/inode.c:727 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ksys_fallocate fs/open.c:334 [inline] __do_sys_fallocate fs/open.c:342 [inline] __se_sys_fallocate fs/open.c:340 [inline] __x64_sys_fallocate+0xcf/0x140 fs/open.c:340 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: 0033:0x43fca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb30e0858 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 000000000043fca9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000003fe R11: 0000000000000246 R12: 000000000001105c R13: 00007ffeb30e087c R14: 00007ffeb30e0890 R15: 00007ffeb30e0880 Modules linked in: CR2: fffffffffffffffc ---[ end trace ca76f32b4018d821 ]--- RIP: 0010:__list_add include/linux/list.h:71 [inline] RIP: 0010:list_add include/linux/list.h:86 [inline] RIP: 0010:alloc_huge_page+0xdcb/0x11b0 mm/hugetlb.c:2821 Code: 00 0f 85 6b 03 00 00 48 89 ce 48 89 4a 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ee 03 80 3c 06 00 0f 85 2b 03 00 00 49 8d 7e 10 <49> 89 56 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 RSP: 0018:ffffc90002b8fb78 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: fffffffffffffffc RDX: ffffea0001fb0008 RSI: 1fffffffffffffff RDI: 0000000000000004 RBP: ffffc90002b8fd50 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81b6fda1 R11: 0000000000000000 R12: ffffffff90246a70 R13: 0000000000000001 R14: fffffffffffffff4 R15: ffffffff90246b48 FS: 00000000014e5300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffc CR3: 000000006eadf000 CR4: 00000000001506f0 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 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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F28E0C432BE for ; Sat, 14 Aug 2021 11:07:25 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AB76F60E97 for ; Sat, 14 Aug 2021 11:07:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org AB76F60E97 Authentication-Results: mail.kernel.org; dmarc=fail (p=none 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[209.85.166.198]) by imf11.hostedemail.com (Postfix) with ESMTP id 5E07DF0005AE for ; Sat, 14 Aug 2021 11:07:24 +0000 (UTC) Received: by mail-il1-f198.google.com with SMTP id f20-20020a056e020c74b02902243d481d97so5235284ilj.13 for ; Sat, 14 Aug 2021 04:07:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=jg6Z03SJ05/CjgMCaJhiwvhxwv4eMAQtr466IAVxO1w=; b=LIWjCJ3dZ0TTilMM+fULwYQN4Vr5VbuLBSWg/XkYOCKd/YysYni588yRE6pdFnzl4P TtjtiVLnep0TB8zkRKUsHRSaUlZsRxHumO57vmsWRoRoOM4C6wBgtB6IRX2II+5Gmw4w waLF2MYFe0WFIckyrPoZj6PycJ0tYWAPuIsz8Elwr8uFGmxrSKsfyW+gfoAiOWAP5187 qJB1InXbZoS2sQucD31pmxCXbde2+VfoFjqJ8GW9Q2GNzIwVkJPcI5J0+jw14evNZSYj A+Lz4IGwJaCZgYeqNgLzDm3K/N+yZ2PL3+2vjliGcDNMNVT1hRovHBSGwQcVZn2ib0Rj qR0w== X-Gm-Message-State: AOAM531kyJNC3VwLEifc/scq3JgpQUhEgEE67m0czJKOHPZGHMdFy5Ei 0Lfof6Nt4oj8o3UehrVIO2nBkT9ppjRv59Foi68/uKttmXp+ X-Google-Smtp-Source: ABdhPJwjioquqoHNADhdxLi1RG7P24OTrYmx7drCuSdqgzNJXAlxKwfSjGOO8w95IjsKHMTE8cfmFSF8FUYUguRnUp9F2TCQEpc7 MIME-Version: 1.0 X-Received: by 2002:a02:cd2c:: with SMTP id h12mr3429459jaq.84.1628939243726; Sat, 14 Aug 2021 04:07:23 -0700 (PDT) Date: Sat, 14 Aug 2021 04:07:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fbad4305c982f836@google.com> Subject: [syzbot] BUG: unable to handle kernel paging request in alloc_huge_page From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mike.kravetz@oracle.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 5E07DF0005AE Authentication-Results: imf11.hostedemail.com; dkim=none; dmarc=fail reason="SPF not aligned (relaxed), No valid DKIM" header.from=appspotmail.com (policy=none); spf=pass (imf11.hostedemail.com: domain of 366MXYQkbAKASYZKALLERAPPID.GOOGLEUSERCONTENT.COM@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com designates 209.85.166.198 as permitted sender) smtp.mailfrom=366MXYQkbAKASYZKALLERAPPID.GOOGLEUSERCONTENT.COM@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Rspamd-Server: rspam04 X-Stat-Signature: 79b985gneoyrjd5etqwawtjkwifw1o8t X-HE-Tag: 1628939244-578616 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: 92d00774360d Add linux-next specific files for 20210810 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=12e2b4d9300000 kernel config: https://syzkaller.appspot.com/x/.config?x=a6933fa6f9a86ca9 dashboard link: https://syzkaller.appspot.com/bug?extid=57876cfc2dca0c6b2e6a compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f81581300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11419dfa300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+57876cfc2dca0c6b2e6a@syzkaller.appspotmail.com BUG: unable to handle page fault for address: fffffffffffffffc #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD b68f067 P4D b68f067 PUD b691067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6601 Comm: syz-executor361 Not tainted 5.14.0-rc5-next-20210810-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add include/linux/list.h:71 [inline] RIP: 0010:list_add include/linux/list.h:86 [inline] RIP: 0010:alloc_huge_page+0xdcb/0x11b0 mm/hugetlb.c:2821 Code: 00 0f 85 6b 03 00 00 48 89 ce 48 89 4a 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ee 03 80 3c 06 00 0f 85 2b 03 00 00 49 8d 7e 10 <49> 89 56 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 RSP: 0018:ffffc90002b8fb78 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: fffffffffffffffc RDX: ffffea0001fb0008 RSI: 1fffffffffffffff RDI: 0000000000000004 RBP: ffffc90002b8fd50 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81b6fda1 R11: 0000000000000000 R12: ffffffff90246a70 R13: 0000000000000001 R14: fffffffffffffff4 R15: ffffffff90246b48 FS: 00000000014e5300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffc CR3: 000000006eadf000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hugetlbfs_fallocate+0x6f3/0x12e0 fs/hugetlbfs/inode.c:727 vfs_fallocate+0x48d/0xd80 fs/open.c:311 ksys_fallocate fs/open.c:334 [inline] __do_sys_fallocate fs/open.c:342 [inline] __se_sys_fallocate fs/open.c:340 [inline] __x64_sys_fallocate+0xcf/0x140 fs/open.c:340 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: 0033:0x43fca9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb30e0858 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 000000000043fca9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000003fe R11: 0000000000000246 R12: 000000000001105c R13: 00007ffeb30e087c R14: 00007ffeb30e0890 R15: 00007ffeb30e0880 Modules linked in: CR2: fffffffffffffffc ---[ end trace ca76f32b4018d821 ]--- RIP: 0010:__list_add include/linux/list.h:71 [inline] RIP: 0010:list_add include/linux/list.h:86 [inline] RIP: 0010:alloc_huge_page+0xdcb/0x11b0 mm/hugetlb.c:2821 Code: 00 0f 85 6b 03 00 00 48 89 ce 48 89 4a 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ee 03 80 3c 06 00 0f 85 2b 03 00 00 49 8d 7e 10 <49> 89 56 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 RSP: 0018:ffffc90002b8fb78 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: fffffffffffffffc RDX: ffffea0001fb0008 RSI: 1fffffffffffffff RDI: 0000000000000004 RBP: ffffc90002b8fd50 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81b6fda1 R11: 0000000000000000 R12: ffffffff90246a70 R13: 0000000000000001 R14: fffffffffffffff4 R15: ffffffff90246b48 FS: 00000000014e5300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffffc CR3: 000000006eadf000 CR4: 00000000001506f0 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