From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f72.google.com (mail-ot1-f72.google.com [209.85.210.72]) (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 0C89B2F531B for ; Sat, 14 Mar 2026 02:50:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773456608; cv=none; b=Xz93zV8fFZ8j/mBlaU8rZebx8KXXo9DYSD3FPJus5ykeHTtqI5jjHjvddeGz9xBSYoUN76O9twYZOkcgd70WKhRM1EUZ6TFCQYD3BBpWwN2d/sGtx2dtY4nLk7YIgBHVvwwYCb7lhwj41n/96GowuCopwTBss+fY0LQqInhohl0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773456608; c=relaxed/simple; bh=cl24KefyH7Gc0oPMRlNPm97fDRODdf9v8aAfotxkbDw=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=GUnkQOIrW75ZeD5hgw/+mSXcaku977cKOlAyfHhrdwGkyrq5OBB9CJ+pifNzcQeMdumxLXI4Q3M96qxZFwkSyRrloBIYAai0NwhdC8MoRR/k23rnx6iO6VeNScH/Gb/ecd9o/cXhn5HvYM3WfcI0YLwAmWTnx5N1x2dpD5NIldg= 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=209.85.210.72 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-ot1-f72.google.com with SMTP id 46e09a7af769-7d4d4db1523so13094673a34.1 for ; Fri, 13 Mar 2026 19:50:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1773456605; x=1774061405; h=content-transfer-encoding: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=fEpviFLcBxBlBU9NLSaquu9LpDRJ5jUZD87zxU8AXTk=; b=NUJMqBAbwS16XwG6VPR4Gcua6goQNu49OASznAd4wLE28A60WgJFyMH4BS6CthHz9X 8I/QkABzCLsU+u2zJUrCV4vDQiKmYmeqPS8x5DQ9X+W0qxcMUQif2k86ytGUpIqR1Gu/ 832J3axsti+T8vadQscU4w7RuSlGDFRwMiZ1VZesXNnA+2qdPVWrZkboRR7BmQsj3o+6 JeOYeg3Ygl47o/Rejq2oYOs6V4vPDTjRCSL6vdmSFue2ECO6B6j+ks8jj87cHH2RLPQb Qs/iZkhfsMH30vk+vptbQr1JFGD3Qb32FZG3ePfIKHaY+EOcdLE8dF/hJUoYywmLh6FT Mmzg== X-Forwarded-Encrypted: i=1; AJvYcCX0CSaMKnbMT7wI4h1+L6TojqFcb5QLvyupTw992Cv+/qreDpnGRKPBm9e6QAXWOyDDwuHnmLIJgLYehmE=@vger.kernel.org X-Gm-Message-State: AOJu0YycAlKjE36BfjEg8QKNrbgDoV13S7hB7lYuKyeX2GpgKPRq2tW9 qnu4mCoTMpWnY3tZ0YCfBrusB4KzafR9ekGE14bru0QVcswmyaSWQmYx0hm1+0bh+vJYlYQEPhW UMg8KexQ0OWBX04AMcDZ4xQyJ8aSEP3Bqa9QDg6cT3r8ucpevEH1oxf8XIMY= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:81ce:b0:662:c8be:573 with SMTP id 006d021491bc7-67bdaa630d1mr3109148eaf.61.1773456604812; Fri, 13 Mar 2026 19:50:04 -0700 (PDT) Date: Fri, 13 Mar 2026 19:50:04 -0700 In-Reply-To: <20260314022925.527287-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69b4ccdc.050a0220.36eb34.0011.GAE@google.com> Subject: Re: [syzbot] [net?] general protection fault in bond_header_create From: syzbot To: kartikey406@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: lost connection to test machine syzkaller login: qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0= ) is smaller than the requested size (0x8e000) Warning: Permanently added '[localhost]:18996' (ED25519) to the list of kno= wn hosts. [ 97.289256][ T10] cfg80211: failed to load regulatory.db [ 152.340372][ T1011] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 ac= tion 0x6 frozen [ 152.344761][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 152.347836][ T1011] ata1.00: cmd 61/70:70:b6:54:04/04:00:00:00:00/40 tag= 14 ncq dma 581632 out [ 152.347836][ T1011] res 40/00:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x4 (timeout) [ 152.357188][ T1011] ata1.00: status: { DRDY } [ 152.360133][ T1011] ata1: hard resetting link [ 152.682867][ T1011] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 30= 0) [ 152.688365][ T1011] ata1.00: configured for UDMA/100 [ 152.691802][ T1011] ata1: EH complete qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than= the requested size (0x83000) 2026/03/14 02:48:08 parsed 1 programs [ 157.947149][ T5334] cgroup: Unknown subsys name 'net' [ 157.998795][ T5334] cgroup: Unknown subsys name 'cpuset' [ 158.005626][ T5334] cgroup: Unknown subsys name 'rlimit' [ 209.923844][ T1316] ieee802154 phy0 wpan0: encryption failed: -22 [ 209.927618][ T1316] ieee802154 phy1 wpan1: encryption failed: -22 [ 218.260125][ T1011] ata1.00: NCQ disabled due to excessive errors [ 218.263261][ T1011] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 ac= tion 0x6 frozen [ 218.267800][ T1011] ata1.00: failed command: WRITE FPDMA QUEUED [ 218.271402][ T1011] ata1.00: cmd 61/18:70:1e:9d:05/04:00:00:00:00/40 tag= 14 ncq dma 536576 out [ 218.271402][ T1011] res 40/00:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x4 (timeout) [ 218.280859][ T1011] ata1.00: status: { DRDY } [ 218.283018][ T1011] ata1: hard resetting link [ 218.602968][ T1011] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 30= 0) [ 218.608098][ T1011] ata1.00: configured for UDMA/100 [ 218.611748][ T1011] ata1: EH complete qemu-system-x86_64: hw/ide/core.c:934: ide_dma_cb: Assertion `prep_size >= =3D 0 && prep_size <=3D n * 512' failed. Connection to localhost closed by remote host. syzkaller build log: go env (err=3D) AR=3D'ar' CC=3D'gcc' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_ENABLED=3D'1' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' CXX=3D'g++' GCCGO=3D'gccgo' GO111MODULE=3D'auto' GOAMD64=3D'v1' GOARCH=3D'amd64' GOAUTH=3D'netrc' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOCACHEPROG=3D'' GODEBUG=3D'' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFIPS140=3D'off' GOFLAGS=3D'' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build4127251169=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.26.0' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) HEAD detached at 2f7f359d8a4d nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3D2f7f359d8a4db30d79a33f1bbc17a331b1eb58dd -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260312-214211" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D2f7f359d8a4db30d79a33f1bbc17a331b1eb58dd -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260312-214211" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D2f7f359d8a4db30d79a33f1bbc17a331b1eb58dd -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260312-214211" -o ./bi= n/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"2f7f359d8a4db30d79a33f1bbc17a331b1= eb58dd\" /usr/bin/ld: /tmp/ccFlVss0.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking ./tools/check-syzos.sh 2>/dev/null Tested on: commit: 1c9982b4 Merge tag 'drm-fixes-2026-03-14' of https://g.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3Dccef46afa67b2b1= 9 dashboard link: https://syzkaller.appspot.com/bug?extid=3D3d8bc31c45e11450f= 24c compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-= 1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D15f61d4a5800= 00