From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C0BEC1F8EFB for ; Fri, 3 Jan 2025 12:54:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735908867; cv=none; b=O/lvAUA16VfCVi4mbRCpcOlRC4xJrxuimlwDILPAM5o2A9E+0z2NHrKlOMFVTPe3ITXYw0OGj0fjLe3NMh1aax2Mz3A6w+hwRuy9feZ2mcqkcNQzR+gpDn4nYinTEdXbRCFXiiuGg+nEjWdnLJ2T6nj3OH8Ir6/kn3MR9ZUyPT0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735908867; c=relaxed/simple; bh=JyymsG69GbYm4cG3JLHY+iAnWGvMyPIoGGNJQi/ysks=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=CdAaG/ZsAxYEldOiCUEf4OZpQmNzcyLRdJ0VsEx3o9LEkPlMxxLQEVHfUVA/q5vklAadRqyD18Ckur2FiElJMtwLInyWFacl/WeXRSEneE6QFUvcjtt0yZnt00j9QhyDLOs3z8AwNxPkoCTrM/8cBHGDBmCantsgKwMAmQGJqPk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.206 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f206.google.com with SMTP id e9e14a558f8ab-3a9d303a5ccso245274005ab.3 for ; Fri, 03 Jan 2025 04:54:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735908864; x=1736513664; 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=5ITWS9h7vtpoa0NpfmTsr8n6yLqz8WaLskcFWkh1/us=; b=VmMWujZj1UmnkiVrCgd/DbSbFWVyR7b5bYQTh6mNZc0D3MlO4Fihv/iflACIkvjUBP jHEixU3bbe/KGZ+GWgbwQ6tXagjoWJQMDxex08NjXyNZ/1zuaPWnhcAKLQiJYZmlnyxn afXG4guXU5LMNLoxvEeQZ/GInH8w1/URbyG0wqHMjIGc9x6Nuj4D2RebJe5il46B1g5x wSOOO0x0vP4Yy8Lw6fYtB6gt5HjWRoxCRZcDZEhQX4owVEeWPa0L9/8rs/00AUTB1pm5 tL7HwHWtx1b3rn3ClJ/aYIuIvM7PDEE06yq01MFofit13SI9B+iTkfD8Hu6Ly0dzfMKZ LEWg== X-Forwarded-Encrypted: i=1; AJvYcCW90eJxCQ72VODKZ6XXb4D1b6QMNFYLYEuPZFan6fDNu+h0pELLYUK11LZ5Uj0CHWBz2Ow2OTaNQraBj3w=@vger.kernel.org X-Gm-Message-State: AOJu0YwbSHKwKYTyOKyVxjkKBdQqXiw19WtFwMVaeJS5z6d/flM/B8if VmUJfinzrbdU+zcxvAg3Fel9CGuMGgkSYhy6dOZ6IEAnDhw/66mNvEXuANT6GL9XWlyM/x06sK+ xqHw1ITJyMJ76Vu6TVOe8r5VAyiWq6ZjYScSRVSsjtIjN1zZ03aYUX9o= X-Google-Smtp-Source: AGHT+IGnQp8EW6Ng7LLiurmcFtCOBZN6qk1XUU9+nqfxA8+dFfGCYqVedQ5O9u9FYdhlH8bikpWSDA6n1ov+Ff7tFmkbRj7L1/0m Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d0e:b0:3a7:87f2:b013 with SMTP id e9e14a558f8ab-3c2d1e7df90mr374816275ab.4.1735908864382; Fri, 03 Jan 2025 04:54:24 -0800 (PST) Date: Fri, 03 Jan 2025 04:54:24 -0800 In-Reply-To: <675f6309.050a0220.37aaf.0109.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6777de00.050a0220.178762.0044.GAE@google.com> Subject: Re: [syzbot] [jfs?] KASAN: slab-use-after-free Write in dtSplitPage From: syzbot To: jfs-discussion@lists.sourceforge.net, linux-kernel@vger.kernel.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has found a reproducer for the following issue on: HEAD commit: 0bc21e701a6f MAINTAINERS: Remove Olof from SoC maintainers git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=132bbd0f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=ba7cde9482d6bb6 dashboard link: https://syzkaller.appspot.com/bug?extid=a939a1121380d3212940 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c758b0580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d726f8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/858bb9b76ee5/disk-0bc21e70.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f3c83ca1ab45/vmlinux-0bc21e70.xz kernel image: https://storage.googleapis.com/syzbot-assets/813f2115e026/bzImage-0bc21e70.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/dfe2948d3efd/mount_0.gz Bisection is inconclusive: the first bad commit could be any of: 781773e3b680 sched/fair: Implement ENQUEUE_DELAYED a1c446611e31 sched,freezer: Mark TASK_FROZEN special e1459a50ba31 sched: Teach dequeue_task() about special task states f12e148892ed sched/fair: Prepare pick_next_task() for delayed dequeue 152e11f6df29 sched/fair: Implement delayed dequeue 2e0199df252a sched/fair: Prepare exit/cleanup paths for delayed_dequeue 54a58a787791 sched/fair: Implement DELAY_ZERO bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f5fadf980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a939a1121380d3212940@syzkaller.appspotmail.com ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1600:11 index 22 is out of range for type 'struct lv[20]' CPU: 1 UID: 0 PID: 5819 Comm: syz-executor559 Not tainted 6.13.0-rc5-syzkaller-00012-g0bc21e701a6f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 ubsan_epilogue lib/ubsan.c:231 [inline] __ubsan_handle_out_of_bounds+0x121/0x150 lib/ubsan.c:429 dtSplitPage+0x3e5e/0x3ed0 fs/jfs/jfs_dtree.c:1600 dtSplitUp fs/jfs/jfs_dtree.c:1091 [inline] dtInsert+0x14bd/0x6c10 fs/jfs/jfs_dtree.c:870 jfs_rename+0xafe/0x1bf0 fs/jfs/namei.c:1225 vfs_rename+0xbdb/0xf00 fs/namei.c:5067 do_renameat2+0xd94/0x13f0 fs/namei.c:5224 __do_sys_rename fs/namei.c:5271 [inline] __se_sys_rename fs/namei.c:5269 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:5269 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f57df948b79 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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:00007ffc55072638 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f57df948b79 RDX: 00007f57df948b79 RSI: 0000000020000f40 RDI: 0000000020000300 RBP: 00007f57df9c1610 R08: 00007ffc55072808 R09: 00007ffc55072808 R10: 00007ffc55072808 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc550727f8 R14: 0000000000000001 R15: 0000000000000001 ---[ end trace ]--- --- 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.