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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CEE45C43217 for ; Thu, 1 Dec 2022 12:49:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230478AbiLAMtp (ORCPT ); Thu, 1 Dec 2022 07:49:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33262 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229778AbiLAMtl (ORCPT ); Thu, 1 Dec 2022 07:49:41 -0500 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D05FC91C32 for ; Thu, 1 Dec 2022 04:49:40 -0800 (PST) Received: by mail-io1-f70.google.com with SMTP id n8-20020a6b4108000000b006de520dc5c9so1453817ioa.19 for ; Thu, 01 Dec 2022 04:49:40 -0800 (PST) X-Google-DKIM-Signature: v=1; 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charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 9e46a7996732 Add linux-next specific files for 20221125 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=16d02883880000 kernel config: https://syzkaller.appspot.com/x/.config?x=11e19c740a0b2926 dashboard link: https://syzkaller.appspot.com/bug?extid=a83dc51a78f0f4cf20da 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=143ec2d3880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16a73675880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/758d818cf966/disk-9e46a799.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f7c8696b40a5/vmlinux-9e46a799.xz kernel image: https://storage.googleapis.com/syzbot-assets/810f9750b87f/bzImage-9e46a799.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a83dc51a78f0f4cf20da@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5295 at mm/page_alloc.c:5527 __alloc_pages+0x412/0x5b0 mm/page_alloc.c:5527 Modules linked in: CPU: 0 PID: 5295 Comm: syz-executor337 Not tainted 6.1.0-rc6-next-20221125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__alloc_pages+0x412/0x5b0 mm/page_alloc.c:5527 Code: ff ff 00 0f 84 c3 fd ff ff 80 ce 01 e9 bb fd ff ff 83 fe 0a 0f 86 ce fc ff ff 80 3d 7d 63 98 0c 00 75 09 c6 05 74 63 98 0c 01 <0f> 0b 45 31 f6 e9 52 fe ff ff 65 ff 05 75 44 3f 7e 48 c7 c0 e0 59 RSP: 0018:ffffc90003b3fac0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff92000767f59 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000014 RDI: 0000000000000000 RBP: 0000000000040d40 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000100000000 R11: 0000000000000000 R12: 0000000000000014 R13: 0000000000000000 R14: 0000000000040d40 R15: ffff888076e48000 FS: 000055555561c3c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f57a7ce2a70 CR3: 000000007adce000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __alloc_pages_node include/linux/gfp.h:237 [inline] alloc_pages_node include/linux/gfp.h:260 [inline] __kmalloc_large_node+0x85/0x160 mm/slab_common.c:1100 __do_kmalloc_node mm/slab_common.c:943 [inline] __kmalloc+0x91/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:575 [inline] kzalloc include/linux/slab.h:711 [inline] v9fs_fid_get_acl+0x78/0x120 fs/9p/acl.c:32 __v9fs_get_acl fs/9p/acl.c:66 [inline] v9fs_get_acl+0x120/0x5f0 fs/9p/acl.c:93 v9fs_mount+0x662/0xca0 fs/9p/vfs_super.c:184 legacy_get_tree+0x109/0x220 fs/fs_context.c:610 vfs_get_tree+0x8d/0x2f0 fs/super.c:1531 do_new_mount fs/namespace.c:3145 [inline] path_mount+0x132a/0x1e20 fs/namespace.c:3475 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3696 [inline] __se_sys_mount fs/namespace.c:3673 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3673 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: 0033:0x7f425fc05929 Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe17c2a538 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffe17c2a548 RCX: 00007f425fc05929 RDX: 0000000020000140 RSI: 0000000020000340 RDI: 0000000000000000 RBP: 00007ffe17c2a540 R08: 00000000200006c0 R09: 00007f425fbc3bf0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 --- 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