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SMTP id e9e14a558f8ab-3d6d01e743fmr4546105ab.16.1743506343257; Tue, 01 Apr 2025 04:19:03 -0700 (PDT) Date: Tue, 01 Apr 2025 04:19:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67ebcba7.050a0220.297a31.000d.GAE@google.com> Subject: Re: [syzbot] [input?] [usb?] UBSAN: shift-out-of-bounds in __kfifo_alloc From: syzbot To: linux-kernel@vger.kernel.org, qasdev00@gmail.com, 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: 00000000 0000000000000031 0000726565666965 ZMM26=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000021 0000000000000000 0000000000000031 00006d5f65636864 ZMM27=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbf2b313423342c ZMM28=3D0000000000000000 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0000000000000000 0000000000000000= 692054524f50202c 2064696c61696d20 0070253a20252054 524f504d49005452 ZMM26=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 692020520050202c 2025204f504d4900 0061253a20252000 2527204d49005452 ZMM27=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 282b2e2fdf37342d 280bbfbf23243324 26312033fc040f18 1317140d080b0412 ZMM28=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 343133bffc121104 1214041204110814 100411bffc040f18 1317140d080b0412 ZMM29=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 4141414141414141 4141414141414141 4141414141414141 4141414141414141 ZMM30=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 2020202020202020 2020202020202020 2020202020202020 2020202020202020 info registers vcpu 3 CPU#3 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0000000000000000 0000000000000000 ZMM09=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 00000000000002a1 0000000000000000 44455a494c414954 494e495f43455355 ZMM18=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 6f6f742033687465 2f74656e2f306d69 7376656474656e2f 736563697665642f ZMM19=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 4a4a51055c445757 440540495057055c 5744574a55484051 000f1a005b1a0f00 ZMM20=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 370a07495579ad27 00005635d9ee8846 0000000000000091 0000000000000000 ZMM21=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 0000000000000251 0000000000000035 6c6c696b66722f33 7968702f31313230 ZMM22=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 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0000000000000000= 4141414141414141 4141414141414141 4141414141414141 4141414141414141 ZMM30=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=3D0000000000000000 0000000000000000 0000000000000000 0000000000000000= 2020202020202020 2020202020202020 2020202020202020 2020202020202020 syzkaller build log: go env (err=3D) 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/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'/syzkaller/jobs/linux/gopath/pkg/mod/golang.org/toolchain@v0.0.1-= go1.23.6.linux-amd64' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/syzkaller/jobs/linux/gopath/pkg/mod/golang.org/toolchain@v0.0= .1-go1.23.6.linux-amd64/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.23.6' GODEBUG=3D'' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GCCGO=3D'gccgo' GOAMD64=3D'v1' AR=3D'ar' CC=3D'gcc' CXX=3D'g++' CGO_ENABLED=3D'1' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOWORK=3D'' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' PKG_CONFIG=3D'pkg-config' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build970112057=3D/tmp/go-build -gno-record-gcc= -switches' git status (err=3D) HEAD detached at 20510e8871 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}}' ./sys/syz-sysgen | grep -q false || go install ./sy= s/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=3D20510e8871e31b24ba7dfd19ee03a482ae2ad722 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20250326-130234'" -o ./b= in/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\"20510e8871e31b24ba7dfd19ee03a482ae= 2ad722\" /usr/bin/ld: /tmp/cceHMzFX.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or linking Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D131c094c580000 Tested on: commit: 08733088 Merge tag 'rust-fixes-6.15-merge' of git://gi.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3D670852ba0109a9f= 6 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dd5204cbbdd921f1f7= cad compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Deb= ian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D126c094c5800= 00