linux-hardening - Re: [syzbot] upstream boot error: WARNING in netlink

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Message-ID: <0000000000003c183505ea350059@google.com>
Date:   Tue, 04 Oct 2022 05:57:21 -0700
From:   syzbot <syzbot+3a080099974c271cd7e9@...kaller.appspotmail.com>
To:     bpf@...r.kernel.org, davem@...emloft.net, dvyukov@...gle.com,
        edumazet@...gle.com, fw@...len.de,
        harshit.m.mogalapalli@...cle.com, keescook@...omium.org,
        kuba@...nel.org, linux-hardening@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        pabeni@...hat.com, syzkaller-bugs@...glegroups.com,
        vegard.nossum@...cle.com
Subject: Re: [syzbot] upstream boot error: WARNING in netlink_ack

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

asset storage also requires dashboard client

syzkaller build log:
go env (err=<nil>)
GO111MODULE="auto"
GOARCH="amd64"
GOBIN=""
GOCACHE="/syzkaller/.cache/go-build"
GOENV="/syzkaller/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/syzkaller/jobs/linux/gopath/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/syzkaller/jobs/linux/gopath"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.17"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build46036865=/tmp/go-build -gno-record-gcc-switches"

git status (err=<nil>)
HEAD detached at feb563518
nothing to commit, working tree clean


go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=feb5635181eb12a6e3516172a3f5af06a3bc93e1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220930-160315'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=feb5635181eb12a6e3516172a3f5af06a3bc93e1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220930-160315'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=linux GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=feb5635181eb12a6e3516172a3f5af06a3bc93e1 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220930-160315'" "-tags=syz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-stress 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-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
	-DHOSTGOOS_linux=1 -DGIT_REVISION=\"feb5635181eb12a6e3516172a3f5af06a3bc93e1\"



Tested on:

commit:         725737e7 Merge tag 'statx-dioalign-for-linus' of git:/..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config:  https://syzkaller.appspot.com/x/.config?x=36e3ab6ff9643877
dashboard link: https://syzkaller.appspot.com/bug?extid=3a080099974c271cd7e9
compiler:       gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
patch:          https://syzkaller.appspot.com/x/patch.diff?x=12302bb8880000