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References: <20230123082114.4291-1-hdanton@sina.com> <0000000000006b647005f2ece55e@google.com>
In-Reply-To: <0000000000006b647005f2ece55e@google.com>
From:   Dmitry Vyukov <dvyukov@google.com>
Date:   Fri, 27 Jan 2023 08:18:11 +0100
Message-ID: <CACT4Y+bAbSBBYVnBGqZechS_aV=zX6J-B2wdUC_acYYkQur1kw@mail.gmail.com>
Subject: Re: [syzbot] [xfs?] KASAN: stack-out-of-bounds Read in xfs_buf_lock
To:     syzbot <syzbot+0bc698a422b5e4ac988c@syzkaller.appspotmail.com>,
        syzkaller <syzkaller@googlegroups.com>,
        Aleksandr Nogikh <nogikh@google.com>
Cc:     hdanton@sina.com, linux-kernel@vger.kernel.org,
        syzkaller-bugs@googlegroups.com
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On Mon, 23 Jan 2023 at 12:42, syzbot
<syzbot+0bc698a422b5e4ac988c@syzkaller.appspotmail.com> wrote:
>
> Hello,
>
> syzbot tried to test the proposed patch but the build/boot failed:
>
> failed to delete instance: googleapi: Error 400: Invalid value for field =
'instance': 'ci-upstream-kasan-gce-root-test-job-parallel-test-job-parallel=
-1'. Must be a match of regex '[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?|[1-9][0-9]=
{0,19}', invalid

+Aleksandr, was this fixed already?

> syzkaller build log:
> go env (err=3D<nil>)
> GO111MODULE=3D"auto"
> GOARCH=3D"amd64"
> GOBIN=3D""
> GOCACHE=3D"/syzkaller/.cache/go-build"
> GOENV=3D"/syzkaller/.config/go/env"
> GOEXE=3D""
> GOEXPERIMENT=3D""
> GOFLAGS=3D""
> GOHOSTARCH=3D"amd64"
> GOHOSTOS=3D"linux"
> GOINSECURE=3D""
> GOMODCACHE=3D"/syzkaller/jobs-2/linux/gopath/pkg/mod"
> GONOPROXY=3D""
> GONOSUMDB=3D""
> GOOS=3D"linux"
> GOPATH=3D"/syzkaller/jobs-2/linux/gopath"
> GOPRIVATE=3D""
> GOPROXY=3D"https://proxy.golang.org,direct"
> GOROOT=3D"/usr/local/go"
> GOSUMDB=3D"sum.golang.org"
> GOTMPDIR=3D""
> GOTOOLDIR=3D"/usr/local/go/pkg/tool/linux_amd64"
> GOVCS=3D""
> GOVERSION=3D"go1.17"
> GCCGO=3D"gccgo"
> AR=3D"ar"
> CC=3D"gcc"
> CXX=3D"g++"
> CGO_ENABLED=3D"1"
> GOMOD=3D"/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/g=
o.mod"
> CGO_CFLAGS=3D"-g -O2"
> CGO_CPPFLAGS=3D""
> CGO_CXXFLAGS=3D"-g -O2"
> CGO_FFLAGS=3D"-g -O2"
> CGO_LDFLAGS=3D"-g -O2"
> PKG_CONFIG=3D"pkg-config"
> GOGCCFLAGS=3D"-fPIC -m64 -pthread -fmessage-length=3D0 -fdebug-prefix-map=
=3D/tmp/go-build480514578=3D/tmp/go-build -gno-record-gcc-switches"
>
> git status (err=3D<nil>)
> HEAD detached at 1dac8c7a0
> 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:32: run command via tools/syz-env for best compatibility, see:
> Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contrib=
uting.md#using-syz-env
> go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./=
sys/syz-sysgen
> make .descriptions
> tput: No value for $TERM and no -T specified
> tput: No value for $TERM and no -T specified
> bin/syz-sysgen
> touch .descriptions
> GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/goog=
le/syzkaller/prog.GitRevision=3D1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d -X=
 'github.com/google/syzkaller/prog.gitRevisionDate=3D20230103-123455'" "-ta=
gs=3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzz=
er github.com/google/syzkaller/syz-fuzzer
> GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/goog=
le/syzkaller/prog.GitRevision=3D1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d -X=
 'github.com/google/syzkaller/prog.gitRevisionDate=3D20230103-123455'" "-ta=
gs=3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-exec=
prog github.com/google/syzkaller/tools/syz-execprog
> GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/goog=
le/syzkaller/prog.GitRevision=3D1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d -X=
 'github.com/google/syzkaller/prog.gitRevisionDate=3D20230103-123455'" "-ta=
gs=3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stre=
ss github.com/google/syzkaller/tools/syz-stress
> mkdir -p ./bin/linux_amd64
> gcc -o ./bin/linux_amd64/syz-executor executor/executor.cc \
>         -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-vari=
able -Wframe-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -=
Wno-format-overflow -static-pie -fpermissive -w -DGOOS_linux=3D1 -DGOARCH_a=
md64=3D1 \
>         -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"1dac8c7a01e2bdd35cb04eb49=
01ddb157291ac2d\"
>
>
>
> Tested on:
>
> commit:         7dd4b804 Merge tag 'nfsd-6.2-3' of git://git.kernel.or..
> git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/=
linux.git
> kernel config:  https://syzkaller.appspot.com/x/.config?x=3D2b6ecad960fc7=
03e
> dashboard link: https://syzkaller.appspot.com/bug?extid=3D0bc698a422b5e4a=
c988c
> compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binuti=
ls for Debian) 2.35.2
> patch:          https://syzkaller.appspot.com/x/patch.diff?x=3D145887ee48=
0000