From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (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 5FBDD374185 for ; Thu, 17 Sep 2026 02:10:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789611005; cv=none; b=OXPVXPa62wz9mBLugwI4LsIKGEXo5D3Wo7NHA8t61UrE634PQpakZZHmdiHKXV69+f+TLye/oC/vsYV3pqrGGXkvwOKCdzb1FwGiFA6xsxNT3iziDKV+U1JBWJuwNZER3Y2zDW4PHitPMgofW/AShb0lQOO9fDAfv6ie2OThbSA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789611005; c=relaxed/simple; bh=+Dl/tlOjkK9Oy1CD4VfRQmuMcK/Yrw67ItCJ0RHmS5c=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=h7hXCIgBtVOprTGAbSXLv4qCj7veIqBa/Q9CKM61qIj/7GEjb6UBt39HMdiY+fuqG9B4x6nsQ3ms5H+rCSXSHdDlRDZtE4FQWX1AA9kl3fcirC1A/g7d6Jbcq4eW4mq3HiIB8KegWGnKBbcOJTbEAhg/P1P5bnH8jIZWE8RqOzs= 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=209.85.161.72 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-oo1-f72.google.com with SMTP id 006d021491bc7-6c27804563dso500994eaf.2 for ; Wed, 16 Sep 2026 19:10:03 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789611002; x=1790215802; h=content-transfer-encoding:content-type:to:from:subject:message-id :in-reply-to:date:mime-version:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=BvxtfAt1xjzuY2Tgn0BiYiy3eBa2TKfmLVqygm4RTIk=; b=ckZs2BMNT0ekVXfc+VW5z38i3Rpy5RZsV1oVmmxr+sjelcUrDcETVTFmlsGnZ97Tlk 4xY6RbLBTM2kCkqTUTWfmiT+HilApZdNOvPCf2So/6Mg7gBDwbrRGK4U3znbdYVasple b3ymoFcZgwWLtUJpmU99Gjxot5Yb2Hs3D+K2CfmIZbqAK5HB7jwnVAQPO9e4DDf45W/L dfLxHq0lMEcN774YjY7rz8X959kcb97zhIugcJO/eRZ0BOydKiDYMJbvf7gfo+1ZF7Kf Q+bXYuj+Cs/pXoUwMq8Dv2bGfEHpyOnZWYPZM2ncRb5PifA4o/BF0B95Fk1Qy+j6zdSK Deeg== X-Forwarded-Encrypted: i=1; AKwUvBypqwXqFU7QkZIp3ZDS/Y4S7uUMkTwyClMwDjRdTTDulUj7sN4stxa3LarKgJ54JUzdNp8Uln7cUjim9v8=@vger.kernel.org X-Gm-Message-State: AFuF++n5DDmPp2xfq7o55wxhaUQTidmrxxAlt/leh1fSj/dWamUWpbK0 zemdf+Khru02gk5GPPXDAvSmd50eYg+g58FEW/Fi8XpPJMCGhP7t8Ug4iFAb+zMsu9RgFJpaPQN MfXT+h/MuMjOgWmf9v7fgIjCZ7gLjOuwYjwDftBN1GEBaRSx/rK0nFko4qes= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2907:b0:6c1:e01b:3b1e with SMTP id 006d021491bc7-6c7d45e26cemr5057817eaf.48.1789611002269; Wed, 16 Sep 2026 19:10:02 -0700 (PDT) Date: Wed, 16 Sep 2026 19:10:02 -0700 In-Reply-To: <20260917015317.975430-1-eadavis@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6aab4bfa.b398a7c9.1f86be.0009.GAE@google.com> Subject: Re: [syzbot] [ecryptfs?] KASAN: slab-out-of-bounds Read in ecryptfs_verify_auth_tok_from_key From: syzbot To: eadavis@sina.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 (0x400000) [ 91.925486][ T10] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:30539' (ED25519) to the list of kno= wn hosts. 2026/09/17 02:08:46 parsed 1 programs 2026/09/17 02:08:46 serving rpc on tcp://38533 [ 96.572980][ T5287] cgroup: Unknown subsys name 'net' [ 96.624230][ T5287] cgroup: Unknown subsys name 'cpuset' [ 96.628137][ T5287] cgroup: Unknown subsys name 'rlimit' [ 117.530042][ T1024] ata1.00: exception Emask 0x0 SAct 0x4000 SErr 0x0 ac= tion 0x6 frozen [ 117.530070][ T1024] ata1.00: failed command: WRITE FPDMA QUEUED [ 117.530078][ T1024] ata1.00: cmd 61/00:70:36:81:04/20:00:00:00:00/40 tag= 14 ncq dma 4194304 ou [ 117.530078][ T1024] res 40/00:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x4 (timeout) [ 117.530107][ T1024] ata1.00: status: { DRDY } [ 117.530148][ T1024] ata1: hard resetting link [ 117.854290][ T1024] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 30= 0) [ 117.855240][ T1024] ata1.00: configured for UDMA/100 [ 117.855521][ T1024] ata1: EH complete Setting up swapspace version 1, size =3D 127995904 bytes [ 119.296232][ T5287] Adding 124996k swap on ./swap-file. Priority:0 exte= nts:1 across:124996k=20 qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than= the requested size (0xa8000) [ 121.760867][ T1024] ata1.00: Read log 0x10 page 0x00 failed, Emask 0x1 [ 121.760887][ T1024] ata1: failed to read log page 10h (errno=3D-5) [ 121.760897][ T1024] ata1.00: NCQ disabled due to excessive errors [ 121.760905][ T1024] ata1.00: exception Emask 0x1 SAct 0xc000 SErr 0x0 ac= tion 0x0 [ 121.760915][ T1024] ata1.00: irq_stat 0x41000000 [ 121.760925][ T1024] ata1.00: failed command: READ FPDMA QUEUED [ 121.760932][ T1024] ata1.00: cmd 60/40:70:36:51:05/05:00:00:00:00/40 tag= 14 ncq dma 688128 in [ 121.760932][ T1024] res 50/04:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x1 (device error) [ 121.760961][ T1024] ata1.00: status: { DRDY } [ 121.760968][ T1024] ata1.00: error: { ABRT } [ 121.760977][ T1024] ata1.00: failed command: READ FPDMA QUEUED [ 121.760983][ T1024] ata1.00: cmd 60/c0:78:76:56:05/02:00:00:00:00/40 tag= 15 ncq dma 360448 in [ 121.760983][ T1024] res 50/04:00:00:00:00/00:00:00:00:00/00 Ema= sk 0x1 (device error) [ 121.761010][ T1024] ata1.00: status: { DRDY } [ 121.761017][ T1024] ata1.00: error: { ABRT } [ 121.762668][ T1024] ata1.00: configured for UDMA/100 [ 121.763094][ T1024] sd 0:0:0:0: [sda] tag#14 FAILED Result: hostbyte=3DD= ID_OK driverbyte=3DDRIVER_OK cmd_age=3D0s [ 121.763126][ T1024] sd 0:0:0:0: [sda] tag#14 Sense Key : Aborted Command= [current]=20 [ 121.763149][ T1024] sd 0:0:0:0: [sda] tag#14 Add. Sense: No additional s= ense information [ 121.763173][ T1024] sd 0:0:0:0: [sda] tag#14 CDB: Read(10) 28 00 00 05 5= 1 36 00 05 40 00 [ 121.763186][ T1024] I/O error, dev sda, sector 348470 op 0x0:(READ) flag= s 0x84700 phys_seg 168 prio class 2 [ 121.763396][ T1024] sd 0:0:0:0: [sda] tag#15 FAILED Result: hostbyte=3DD= ID_OK driverbyte=3DDRIVER_OK cmd_age=3D0s [ 121.763421][ T1024] sd 0:0:0:0: [sda] tag#15 Sense Key : Aborted Command= [current]=20 [ 121.763442][ T1024] sd 0:0:0:0: [sda] tag#15 Add. Sense: No additional s= ense information [ 121.763464][ T1024] sd 0:0:0:0: [sda] tag#15 CDB: Read(10) 28 00 00 05 5= 6 76 00 02 c0 00 [ 121.763475][ T1024] I/O error, dev sda, sector 349814 op 0x0:(READ) flag= s 0x84700 phys_seg 88 prio class 2 [ 121.763614][ T1024] ata1: EH complete [ 124.582483][ T5311] soft_limit_in_bytes is deprecated and will be remove= d. Writing any value to this file has no effect. Please report your usecase= to linux-mm@kvack.org if you depend on this functionality. qemu-system-x86_64: hw/ide/core.c:925: 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-build1383433036=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 12a0a44a11e 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=3D12a0a44a11e4f0e07457f2b9d76763cd609f4f86 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20260915-150835" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D12a0a44a11e4f0e07457f2b9d76763cd609f4f86 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20260915-150835" ./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=3D12a0a44a11e4f0e07457f2b9d76763cd609f4f86 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20260915-150835" -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\"12a0a44a11e4f0e07457f2b9d76763cd60= 9f4f86\" go: downloading google.golang.org/grpc v1.83.2 go: downloading golang.org/x/crypto v0.55.0 go: downloading golang.org/x/net v0.58.0 go: downloading golang.org/x/text v0.41.0 /usr/bin/ld: /tmp/ccn9ay4F.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: f6e7b42b Merge tag 'sysctl-7.03-fixes-rc4' of git://gi.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linu= x.git kernel config: https://syzkaller.appspot.com/x/.config?x=3De909ffe6b35dddb= 7 dashboard link: https://syzkaller.appspot.com/bug?extid=3Db9529ebe6a9394ddf= 825 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-= 1~exp1~20260613092250.77), Debian LLD 22.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D14cb93f95800= 00