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 4B2C1EB64D9 for ; Sat, 17 Jun 2023 05:31:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229683AbjFQFbL (ORCPT ); Sat, 17 Jun 2023 01:31:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229687AbjFQFbA (ORCPT ); Sat, 17 Jun 2023 01:31:00 -0400 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A6E31FD7 for ; Fri, 16 Jun 2023 22:30:54 -0700 (PDT) Received: by mail-il1-f206.google.com with SMTP id e9e14a558f8ab-340bd414eb5so12514285ab.3 for ; Fri, 16 Jun 2023 22:30:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686979854; x=1689571854; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=CKSRELDmcJqxfwVUFKf+7p+z3BH0HyEe5s50qS4EyFg=; b=W2dl/888IhshwK65pCM5Hh0eRqUDevNGuabUVl5hpQbUCM1vvhDYEmeV5vEVbDUSaf 1qcwKEB6xryZjmdBEBNOrXQv62IcR++5U1/AM5eIITJjaswzMrIDyRj1sBXnL4QgWevy hpZ55RQFrbID62mK0v7eSDsInzeFudsXJtMZ0duSatoAfSc0rYW3WKfBtH5qrxYYDF9M 0mJTP8+70tYLvXl1AyJ/v9jDwXa/G0w8ZMV6QDLtz10cvF040IxSbuBVga00UzItPerE w0zXGQU0aPBq7fXtZqjnQphyzzxlS7SMj9kZIpvIpZ8yiGw+QdofMkiPdNy+sIGQUyut wYUA== X-Gm-Message-State: AC+VfDwB0gmr26VejIS0VMB9D8WL9+GaSG2sXB93ybgam3nGpqCUs9f8 0NRDuXgYZ0Q2tHIstO5tFDRtwj7xcX5cI0qdn5ssvNtWM5KV X-Google-Smtp-Source: ACHHUZ4Nzq+tx2Y+JJKYx+8g11AgEgpHJN4CiJy9kJgbs4gHgb513dMIgEPDq2Za3oSFLnb5tc33baQicTxxDa/hf19lBxoGp/g1 MIME-Version: 1.0 X-Received: by 2002:a92:da48:0:b0:33b:f0ca:fd14 with SMTP id p8-20020a92da48000000b0033bf0cafd14mr1027014ilq.0.1686979853936; Fri, 16 Jun 2023 22:30:53 -0700 (PDT) Date: Fri, 16 Jun 2023 22:30:53 -0700 In-Reply-To: <0000000000007d069905f284b9d9@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000efee7905fe4c9a46@google.com> Subject: Re: [syzbot] [hfs?] kernel BUG in hfsplus_bnode_put From: syzbot To: akpm@linux-foundation.org, fmdefrancesco@gmail.com, ira.weiny@intel.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, slava@dubeyko.com, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot has found a reproducer for the following issue on: HEAD commit: 40f71e7cd3c6 Merge tag 'net-6.4-rc7' of git://git.kernel.o.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=10482ae3280000 kernel config: https://syzkaller.appspot.com/x/.config?x=7ff8f87c7ab0e04e dashboard link: https://syzkaller.appspot.com/bug?extid=005d2a9ecd9fbf525f6a compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=142e7287280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fd185b280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/073eea957569/disk-40f71e7c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c8a97aaa4cdc/vmlinux-40f71e7c.xz kernel image: https://storage.googleapis.com/syzbot-assets/f536015eacbd/bzImage-40f71e7c.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/b5f1764cd64d/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+005d2a9ecd9fbf525f6a@syzkaller.appspotmail.com loop0: detected capacity change from 0 to 1024 ------------[ cut here ]------------ kernel BUG at fs/hfsplus/bnode.c:618! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5068 Comm: syz-executor476 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:hfsplus_bnode_put+0x6b7/0x6d0 fs/hfsplus/bnode.c:618 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 6c fd ff ff 48 89 df e8 ca 5a 81 ff e9 5f fd ff ff e8 50 83 29 ff 0f 0b e8 49 83 29 ff <0f> 0b e8 42 83 29 ff 0f 0b e8 3b 83 29 ff 0f 0b 66 0f 1f 84 00 00 RSP: 0018:ffffc90003c1f510 EFLAGS: 00010293 RAX: ffffffff8261fc57 RBX: ffff888012ad7180 RCX: ffff888014385940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8261f620 R09: ffffed100255ae31 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012ad7100 R13: dffffc0000000000 R14: ffff8880283d4000 R15: dffffc0000000000 FS: 00007f26ad319700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26ad31a000 CR3: 000000001fab8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hfsplus_bmap_alloc+0x590/0x640 fs/hfsplus/btree.c:414 hfs_bnode_split+0xde/0x1110 fs/hfsplus/brec.c:245 hfsplus_brec_insert+0x3a6/0xdd0 fs/hfsplus/brec.c:100 hfsplus_create_cat+0xeee/0x1bb0 fs/hfsplus/catalog.c:308 hfsplus_mknod+0x16a/0x2a0 fs/hfsplus/dir.c:494 vfs_create+0x1e2/0x330 fs/namei.c:3194 do_mknodat+0x3c6/0x6e0 fs/namei.c:4043 __do_sys_mknodat fs/namei.c:4071 [inline] __se_sys_mknodat fs/namei.c:4068 [inline] __x64_sys_mknodat+0xa9/0xc0 fs/namei.c:4068 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f26ad36d769 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 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:00007f26ad3192f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103 RAX: ffffffffffffffda RBX: 00007f26ad3f27a0 RCX: 00007f26ad36d769 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 00000000ffffff9c RBP: 00007f26ad3bf0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000103 R11: 0000000000000246 R12: 00007f26ad3bf1c0 R13: 0073756c70736668 R14: e5652d70fedcf551 R15: 00007f26ad3f27a8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfsplus_bnode_put+0x6b7/0x6d0 fs/hfsplus/bnode.c:618 Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 6c fd ff ff 48 89 df e8 ca 5a 81 ff e9 5f fd ff ff e8 50 83 29 ff 0f 0b e8 49 83 29 ff <0f> 0b e8 42 83 29 ff 0f 0b e8 3b 83 29 ff 0f 0b 66 0f 1f 84 00 00 RSP: 0018:ffffc90003c1f510 EFLAGS: 00010293 RAX: ffffffff8261fc57 RBX: ffff888012ad7180 RCX: ffff888014385940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8261f620 R09: ffffed100255ae31 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012ad7100 R13: dffffc0000000000 R14: ffff8880283d4000 R15: dffffc0000000000 FS: 00007f26ad319700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f26ad31a000 CR3: 000000001fab8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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.