From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f49.google.com (mail-oa1-f49.google.com [209.85.160.49]) (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 0369233F368 for ; Wed, 18 Mar 2026 22:05:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=209.85.160.49 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773871520; cv=pass; b=a+2Ah88hxzDPrisTBr3mCq/ovB9zJOxfrwW2Ji4Cea2IoqTQ3Frlenu1A+ol5qrJQhQz/WK5sPLDQDQY8B0kzUInWhGF6BkSdnSGrAIIm5X4nTTgLpF6HFoihsuLdT4q9itRwyuiFa8fKwHpn52vnwSF+BlZf+zh7yxfh9r/HnA= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773871520; c=relaxed/simple; bh=sabj0A0BAuS8xh08yMv2OD5jFNV9qz6Xr7PStsyCPio=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=o/x7YRuasXgIfaW0AK71MxSIH4D62VUGdsvKoL4IGBwOKa7d/dv0jlggUHHnfBlfgvXLD39nqMXdV2cZuSCpplPKn2NlV9cIThc+Og6QqGX1f4ea1O170PHLAbL6MolIqGq8TTCfTduVmfnDWP1X8DOzUjGm6HU3dxrtuwsHLr0= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=VKH7tkks; arc=pass smtp.client-ip=209.85.160.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="VKH7tkks" Received: by mail-oa1-f49.google.com with SMTP id 586e51a60fabf-41706b23543so201890fac.1 for ; Wed, 18 Mar 2026 15:05:18 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1773871518; cv=none; d=google.com; s=arc-20240605; b=KzkU2nbdd98P9GoOV+PBZGSTXXxgszyM0S3Pn5P4/qet/ls0gAAYI1ACTh4OJYH6rT Tr79KXKGdgc9oQOFoGyhkKcYzFN3Sl7CBC3GBSyCBh9r1yNbDSExQsukM7DIQrSsdZuO FcapVynmRbr923PpULMFl/T9I3Bh1vBtl1GcH4FbU9sTPOvGbgutd7YMhJmm1e1Kuref efcAu9LOeBhkNLvSoVEk/hURHwz9yzn4PcIt2aWTUbKBOy73NEpJdNZl6sjYc73k09X6 Y0dkH9I9wY73V4dxmHbbcHJ1Tl/gi0JXo024A4zuDhlz2ceHOt4sypAzCDtuhf2F4UYu uEPQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=KTOPNs9Pv/5RY/SOvNaQNpRdaO7uO/4bJmIrMXXPD+w=; fh=HRQ+QdrBWMykqC3eTzQ20jZJtv9u/Sk24IxwFmKKcow=; b=XbQC5r99fYRNXp6zV8JjqJZkDxoQGbKpSvm5z/XuvqphX1/LBmKzM8ToDjqZaqBXOG iWGfl+Kh2zub/Y4GRxlKPxyEzFw5fY/az+mUOcCTM8Qy34QSTUIyGh4Ss6tq6/tLodY2 ffQDn/ZArD/IBDk5wwmfkCrkR9FZH4UXzxG8QxNLltDpNUdKpGLueD1I2QvO3HecYV3I iNctp3+4QOz0O6NMR17Io8cINq/IajR7W662roXFJmJK4uLNhJuQoPU0C/e4hqVgM/f1 wWIFBYkYG+61Icnmlgpqx+qSBhmwgE3Ew82kRdRo8AAzqQrNV4clw6o58Wjq3uivkyNY 5TRQ==; darn=vger.kernel.org ARC-Authentication-Results: i=1; mx.google.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1773871518; x=1774476318; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=KTOPNs9Pv/5RY/SOvNaQNpRdaO7uO/4bJmIrMXXPD+w=; b=VKH7tkksZh4yPmMglDjSpfTDlwkdateQeG9WCxjNOseMqwXKKnsbELLTdioLRTHX3d FfRnlYRjpviVz68Mptg0ShQWxjrWYC0778INUA4KCHGH5DdkMgdjtcsh/duyTBq8+0JP VOPCX+YWxSnSVl8x4m0GppQT4ekR3yRLqd1AQCS1mgVAVmfwPyIpB0qdm81hG67XQoN8 oE8AaL/M2aHa1WsmmKIl9vn48PF8BBbo6Prpy81AtYG0gf2ihwYhEvj0oHsp6E/vrli1 +BtN5+wZpR4ao+9FE6dJdAwGdT0ZG/wqxRtyItcIFHf4ZdTNbpWU9uWe5j7iDWGrqDm8 VtCg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773871518; x=1774476318; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=KTOPNs9Pv/5RY/SOvNaQNpRdaO7uO/4bJmIrMXXPD+w=; b=oRqxQQ1ouWPthp8Gr+wVuKm40HFRnZnzbAvlwcx76MLpBExBePY1EKqofnemG3MdLx rVvBQ1hJMvRW0z6Jrd+hyl5K1pViW0+cho+FqSnaTDNVQcOQqNveWvD2khIQUu/DkTN4 961N6MQcTcWM/NIPkf0rlC8aNdGagpKeFzbYYVP1GUOF8q2vqxjykNG3+RvfiOQoV6Du n2/19F7DCSKnLTQ42VQLdRLpvQCOEsPrT61Un2+bcoDzkQwHBjRB4Bm5F80n50m1+bIK M3hTZWbuKyG+4wZ36EG2h/wVvn3p647hBlgwS4sKJaqV7vfiX+hVAzBMOuPFJZf1S+L2 Pksg== X-Forwarded-Encrypted: i=1; AJvYcCUpRWQByr1hg6DWNPfWkHgQ0TX1toQCgrXISN8xporJZWa3byhLaDLgghkjc/enYrKNXSwWMMa04RrfBA==@vger.kernel.org X-Gm-Message-State: AOJu0YyOr6rjlZyo0B3Xqsfc1hR+QRfl7kZWaEW3E0xZTS9DCgsrs7vV v8CISm0TQ9VLfeOxrWw6pvfLYsWcPJoED+qnwrUh4VCXmZXSr6lo9LdcQIJnlCXe1ys7xcN2s4z 9JnUhdCnCJ7F/6B/gRTrA7rd4kJSfMk9yg4429z/c X-Gm-Gg: ATEYQzw18rcZBe4g/c0uqVm0hWrmx5J/wRKSfVEGqY8aUJ90No87mUzxBw3FE5u/NSK WK5L0At612HxVAPDq2++rvXtBZJG/VcRS2feX/666LuZH5FZbob4y0X9D9pR9RL5SNfD/RKcqHZ Vv4Sc/bQJj8khLEq/+Pl+CI3R1s6VntWogEFLIq6WO+238xqHTzyAhwqXw/hmBJyffO+ZuLmQiL npt57TEddPA1neE6y0rN4J0Wsb+M+AAyU3rJMZLVfe2f8rW0y3PU6HjG8ZLWL6Qhq/7fQB+h/mF yH3JLRCbzXrCXJ4WX6ahhRQzD7h6i+vNlr7Ei5n/f7MVqsU2nYDCfTTIjMZHcvifHE3uhTcvvQ1 UBgXk6KE= X-Received: by 2002:a05:6870:a7a4:b0:417:28be:32a7 with SMTP id 586e51a60fabf-41befc50b48mr786544fac.4.1773871517548; Wed, 18 Mar 2026 15:05:17 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <69b8084c.050a0220.248e02.0115.GAE@google.com> <20260318163510.GE5735@twin.jikos.cz> In-Reply-To: <20260318163510.GE5735@twin.jikos.cz> From: Aleksandr Nogikh Date: Wed, 18 Mar 2026 23:05:06 +0100 X-Gm-Features: AaiRm52gJ3NaK4ElXJM9kqcdADiunedu18U8Gtc7iglNoEzH_UZLUeqrjjfd48o Message-ID: Subject: Re: [syzbot] [btrfs?] BUG: corrupted list in btrfs_free_compr_folio To: dsterba@suse.cz Cc: syzbot , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Wed, Mar 18, 2026 at 5:35=E2=80=AFPM David Sterba wrot= e: > > On Mon, Mar 16, 2026 at 06:40:28AM -0700, syzbot wrote: > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: f338e7738378 Linux 7.0-rc4 > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=3D15265602580= 000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=3Dd46eab0cfd3= 1c214 > > dashboard link: https://syzkaller.appspot.com/bug?extid=3D3c4d8371d6523= 0f852a2 > > compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e= 25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 > > > > Unfortunately, I don't have any reproducer for this issue yet. > > > > Downloadable assets: > > disk image (non-bootable): https://storage.googleapis.com/syzbot-assets= /d900f083ada3/non_bootable_disk-f338e773.raw.xz > > vmlinux: https://storage.googleapis.com/syzbot-assets/2567fb35ebfb/vmli= nux-f338e773.xz > > kernel image: https://storage.googleapis.com/syzbot-assets/f9124de81ddb= /bzImage-f338e773.xz > > > > IMPORTANT: if you fix the issue, please add the following tag to the co= mmit: > > Reported-by: syzbot+3c4d8371d65230f852a2@syzkaller.appspotmail.com > > syz: fix: btrfs: zlib: handle page aligned compressed size correctly #syz fix: btrfs: zlib: handle page aligned compressed size correctly