From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DA4EC433DF for ; Wed, 10 Jun 2020 21:16:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D2CE82072E for ; Wed, 10 Jun 2020 21:16:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D2CE82072E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 670D08D004B; Wed, 10 Jun 2020 17:16:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5F9E78D0033; Wed, 10 Jun 2020 17:16:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4C13A8D004B; Wed, 10 Jun 2020 17:16:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0244.hostedemail.com [216.40.44.244]) by kanga.kvack.org (Postfix) with ESMTP id 2D7CE8D0033 for ; Wed, 10 Jun 2020 17:16:06 -0400 (EDT) Received: from smtpin09.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id DA733180AEF50 for ; Wed, 10 Jun 2020 21:16:05 +0000 (UTC) X-FDA: 76914559890.09.yard09_600d22626dce Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin09.hostedemail.com (Postfix) with ESMTP id BAD0C180423A7 for ; Wed, 10 Jun 2020 21:16:05 +0000 (UTC) X-HE-Tag: yard09_600d22626dce X-Filterd-Recvd-Size: 9442 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Wed, 10 Jun 2020 21:16:05 +0000 (UTC) Received: by mail-io1-f72.google.com with SMTP id v14so2447854iob.11 for ; Wed, 10 Jun 2020 14:16:05 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=sUI1O0BTtU05qonMyEtsZi52Vb5rXo2ggrraYblD2Ao=; b=aOhYlVZySuKnDkS3G1EfNCqI8uSHbaaeOIkc5KZX9LVHQHvmjQLUrz1Gs5Y/gNRiWI BCoLINn6hCo0WHgB9VG6VE7LoAtwcRDePZF3DaogF+DIDOZs0F5LknGfeYkyEAltLC91 2gxA7GYWOtVgmW+VYYSmaT6qhudVXmBQzHcNzs7gtY7NsUBvyB611DON+4Gq7ZoEWOJ9 SLKk6yHq00rEsICpnsshGrCFVmSB1FGuwj7JRfvdbtXRZaOWUnxgQZ7/LFcPeTLGvXF3 z8xxpMLEFNNDBLtmvhwTLqKCA1KC8ZCokEUCdLsBMYSk9PVNtrU2gqEv5EQ5SD8fpakp 9a7g== X-Gm-Message-State: AOAM530Cn8ljO9rHhId0qzGQnuCpyH44SrbXqFZwTKXcK3M5g/oTidJ4 XhX7Qxmo/TnvJVWph2tJpvooEqWEVBcm+cKibkn4v6VZYjjZ X-Google-Smtp-Source: ABdhPJzP2fObnwqMht/MQg73gUpjlISw8vhKWYKTEQxMGR0styJRYuImaxvvsiNwskjE4Jp9/pIHOD29/jGcPwxGSttyFl/xpFLQ MIME-Version: 1.0 X-Received: by 2002:a05:6e02:13f4:: with SMTP id w20mr5060814ilj.294.1591823764565; Wed, 10 Jun 2020 14:16:04 -0700 (PDT) Date: Wed, 10 Jun 2020 14:16:04 -0700 In-Reply-To: <20200610211019.GJ1347934@mit.edu> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000839a705a7c15aa5@google.com> Subject: Re: BUG: unable to handle kernel NULL pointer dereference in generic_perform_write (2) From: syzbot To: adilger.kernel@dilger.ca, akpm@linux-foundation.org, dan.j.williams@intel.com, jack@suse.cz, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: BAD0C180423A7 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam03 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot tried to test the proposed patch but build/boot failed: syzkaller build failed: failed to run ["make" "target"]: exit status 2 GOOS=linux GOARCH=amd64 go install ./syz-fuzzer # github.com/google/syzkaller/sys/netbsd/gen sys/netbsd/gen/amd64.go:41:58: undefined: Field sys/netbsd/gen/amd64.go:44:10: undefined: Ref sys/netbsd/gen/amd64.go:45:59: undefined: Ref sys/netbsd/gen/amd64.go:46:70: undefined: Field sys/netbsd/gen/amd64.go:49:66: undefined: Field sys/netbsd/gen/amd64.go:54:60: undefined: Field sys/netbsd/gen/amd64.go:58:66: undefined: Field sys/netbsd/gen/amd64.go:62:68: undefined: Field sys/netbsd/gen/amd64.go:68:62: undefined: Field sys/netbsd/gen/amd64.go:72:59: undefined: Ref sys/netbsd/gen/amd64.go:72:59: too many errors # github.com/google/syzkaller/sys/akaros/gen sys/akaros/gen/amd64.go:23:63: undefined: Field sys/akaros/gen/amd64.go:26:69: undefined: Field sys/akaros/gen/amd64.go:29:56: undefined: Field sys/akaros/gen/amd64.go:34:52: undefined: Field sys/akaros/gen/amd64.go:39:67: undefined: Field sys/akaros/gen/amd64.go:43:54: undefined: Field sys/akaros/gen/amd64.go:48:54: undefined: Field sys/akaros/gen/amd64.go:51:64: undefined: Field sys/akaros/gen/amd64.go:56:51: undefined: Field sys/akaros/gen/amd64.go:62:56: undefined: Field sys/akaros/gen/amd64.go:62:56: too many errors # github.com/google/syzkaller/sys/openbsd/gen sys/openbsd/gen/amd64.go:49:55: undefined: Field sys/openbsd/gen/amd64.go:53:10: undefined: Ref sys/openbsd/gen/amd64.go:54:60: undefined: Field sys/openbsd/gen/amd64.go:58:10: undefined: Ref sys/openbsd/gen/amd64.go:59:61: undefined: Field sys/openbsd/gen/amd64.go:63:10: undefined: Ref sys/openbsd/gen/amd64.go:64:60: undefined: Field sys/openbsd/gen/amd64.go:68:10: undefined: Ref sys/openbsd/gen/amd64.go:69:51: undefined: Field sys/openbsd/gen/amd64.go:72:52: undefined: Field sys/openbsd/gen/amd64.go:72:52: too many errors # github.com/google/syzkaller/sys/test/gen sys/test/gen/32_fork_shmem.go:29:55: unknown field 'Attrs' in struct literal of type prog.Syscall sys/test/gen/32_fork_shmem.go:30:45: unknown field 'Attrs' in struct literal of type prog.Syscall sys/test/gen/32_fork_shmem.go:31:50: undefined: Ref sys/test/gen/32_fork_shmem.go:31:60: unknown field 'Attrs' in struct literal of type prog.Syscall sys/test/gen/32_fork_shmem.go:32:53: undefined: Field sys/test/gen/32_fork_shmem.go:34:5: unknown field 'Attrs' in struct literal of type prog.Syscall sys/test/gen/32_fork_shmem.go:35:66: undefined: Ref sys/test/gen/32_fork_shmem.go:36:53: undefined: Field sys/test/gen/32_fork_shmem.go:39:62: undefined: Field sys/test/gen/32_fork_shmem.go:42:48: undefined: Field sys/test/gen/32_fork_shmem.go:42:48: too many errors # github.com/google/syzkaller/sys/freebsd/gen sys/freebsd/gen/386.go:49:76: undefined: Field sys/freebsd/gen/386.go:54:60: undefined: Field sys/freebsd/gen/386.go:58:68: undefined: Field sys/freebsd/gen/386.go:65:67: undefined: Field sys/freebsd/gen/386.go:71:68: undefined: Field sys/freebsd/gen/386.go:77:67: undefined: Field sys/freebsd/gen/386.go:83:67: undefined: Field sys/freebsd/gen/386.go:89:68: undefined: Field sys/freebsd/gen/386.go:95:69: undefined: Field sys/freebsd/gen/386.go:101:85: undefined: Field sys/freebsd/gen/386.go:101:85: too many errors # github.com/google/syzkaller/sys/windows/gen sys/windows/gen/amd64.go:23:51: undefined: Field sys/windows/gen/amd64.go:26:53: undefined: Field sys/windows/gen/amd64.go:29:59: undefined: Field sys/windows/gen/amd64.go:32:75: undefined: Field sys/windows/gen/amd64.go:35:51: undefined: Field sys/windows/gen/amd64.go:45:57: undefined: Field sys/windows/gen/amd64.go:55:85: undefined: Field sys/windows/gen/amd64.go:66:69: undefined: Field sys/windows/gen/amd64.go:77:97: undefined: Field sys/windows/gen/amd64.go:88:89: undefined: Field sys/windows/gen/amd64.go:88:89: too many errors # github.com/google/syzkaller/sys/fuchsia/gen sys/fuchsia/gen/amd64.go:96:45: undefined: Field sys/fuchsia/gen/amd64.go:99:45: undefined: Field sys/fuchsia/gen/amd64.go:103:45: undefined: Field sys/fuchsia/gen/amd64.go:108:45: undefined: Field sys/fuchsia/gen/amd64.go:111:45: undefined: Field sys/fuchsia/gen/amd64.go:114:10: undefined: Ref sys/fuchsia/gen/amd64.go:115:41: undefined: Field sys/fuchsia/gen/amd64.go:117:10: undefined: Ref sys/fuchsia/gen/amd64.go:118:43: undefined: Field sys/fuchsia/gen/amd64.go:121:10: undefined: Ref sys/fuchsia/gen/amd64.go:121:10: too many errors # github.com/google/syzkaller/sys/linux/gen sys/linux/gen/386.go:296:58: undefined: Field sys/linux/gen/386.go:301:10: undefined: Ref sys/linux/gen/386.go:302:62: undefined: Field sys/linux/gen/386.go:307:10: undefined: Ref sys/linux/gen/386.go:308:63: undefined: Field sys/linux/gen/386.go:313:10: undefined: Ref sys/linux/gen/386.go:314:67: undefined: Field sys/linux/gen/386.go:319:10: undefined: Ref sys/linux/gen/386.go:320:63: undefined: Field sys/linux/gen/386.go:325:10: undefined: Ref sys/linux/gen/386.go:325:10: too many errors Makefile:113: recipe for target 'target' failed make: *** [target] Error 2 go env (err=) GO111MODULE="" GOARCH="amd64" GOBIN="" GOCACHE="/syzkaller/.cache/go-build" GOENV="/syzkaller/.config/go/env" GOEXE="" GOFLAGS="" GOHOSTARCH="amd64" GOHOSTOS="linux" GONOPROXY="" GONOSUMDB="" GOOS="linux" GOPATH="/syzkaller/jobs/linux/gopath" GOPRIVATE="" GOPROXY="https://proxy.golang.org,direct" GOROOT="/syzkaller/go" GOSUMDB="sum.golang.org" GOTMPDIR="" GOTOOLDIR="/syzkaller/go/pkg/tool/linux_amd64" GCCGO="gccgo" AR="ar" CC="gcc" CXX="g++" CGO_ENABLED="1" GOMOD="" 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-build521465815=/tmp/go-build -gno-record-gcc-switches" git status (err=) HEAD detached at a8c6a3f8 Changes not staged for commit: (use "git add ..." to update what will be committed) (use "git restore ..." to discard changes in working directory) modified: sys/akaros/gen/amd64.go modified: sys/freebsd/gen/386.go modified: sys/freebsd/gen/amd64.go modified: sys/fuchsia/gen/amd64.go modified: sys/fuchsia/gen/arm64.go modified: sys/linux/gen/386.go modified: sys/linux/gen/amd64.go modified: sys/linux/gen/arm.go modified: sys/linux/gen/arm64.go modified: sys/linux/gen/mips64le.go modified: sys/linux/gen/ppc64le.go modified: sys/netbsd/gen/amd64.go modified: sys/openbsd/gen/amd64.go modified: sys/test/gen/32_fork_shmem.go modified: sys/test/gen/32_shmem.go modified: sys/test/gen/64.go modified: sys/test/gen/64_fork.go modified: sys/trusty/gen/arm.go modified: sys/windows/gen/amd64.go Untracked files: (use "git add ..." to include in what will be committed) .descriptions no changes added to commit (use "git add" and/or "git commit -a") Tested on: commit: [unknown git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5b8b9d0c6d0e0f1993c6c56deaf9646942c49d94 dashboard link: https://syzkaller.appspot.com/bug?extid=bca9799bf129256190da compiler: gcc (GCC) 9.0.0 20181231 (experimental)