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AJvYcCXacUN8jpNMhwAD9l/uPPtBoyVLYQlcily1Y3E79FRz8auHFPCIKEMs7Sl4f1xCavE+8xXVitUe+q+Gu2o=@vger.kernel.org X-Gm-Message-State: AOJu0YyanzTzHEYGnET5CSvvm9Yo8TLgvTjoaeR+f3AJBkvXmLrrAQEH LcE/LhsNWtWohVmXuldTQf1IH1AgX4/eRIEWVFyW4OgyFVpco92EHijcVmO0TVlrYUuhbDEq/Z6 5iIorRxjkXChiJh68up7qdR4Ht7sayH40fa5yGtvBL+XYMknX8e3jQPU= X-Google-Smtp-Source: AGHT+IGd+093b3a11IN1ikG+KcTVn0aXL7JuqvokbEegmPYb/OvJwENq0DkMpHvt9t2B2sSaAXC5zC55QuA94kKALZC6disjWjeU Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1561:b0:3a2:f7b1:2f89 with SMTP id e9e14a558f8ab-3a397d1ad5emr42541845ab.18.1728499863256; Wed, 09 Oct 2024 11:51:03 -0700 (PDT) Date: Wed, 09 Oct 2024 11:51:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6706d097.050a0220.1139e6.000a.GAE@google.com> Subject: Re: [syzbot] [btrfs?] general protection fault in getname_kernel (2) From: syzbot To: eadavis@qq.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: s2_ap_driver [ 10.319275][ T1] comedi: version 0.7.76 - http://www.comedi.org [ 10.322568][ T1] usbcore: registered new interface driver dt9812 [ 10.325416][ T1] usbcore: registered new interface driver ni6501 [ 10.327201][ T1] usbcore: registered new interface driver usbdux [ 10.329379][ T1] usbcore: registered new interface driver usbduxfast [ 10.332121][ T1] usbcore: registered new interface driver usbduxsigma [ 10.334088][ T1] usbcore: registered new interface driver vmk80xx [ 10.337211][ T1] usbcore: registered new interface driver r8712u [ 10.338343][ T1] greybus: registered new driver hid [ 10.340298][ T1] greybus: registered new driver gbphy [ 10.341827][ T1] gb_gbphy: registered new driver usb [ 10.349219][ T1] asus_wmi: ASUS WMI generic driver loaded [ 10.361679][ T1] gnss: GNSS driver registered with major 493 [ 10.368815][ T1] usbcore: registered new interface driver gnss-usb [ 10.370709][ T1] usbcore: registered new interface driver hdm_usb [ 10.444816][ T1] usbcore: registered new interface driver snd-usb-aud= io [ 10.448305][ T1] usbcore: registered new interface driver snd-ua101 [ 10.450555][ T1] usbcore: registered new interface driver snd-usb-usx= 2y [ 10.452954][ T1] usbcore: registered new interface driver snd-usb-us1= 22l [ 10.454894][ T1] usbcore: registered new interface driver snd-usb-cai= aq [ 10.456790][ T1] usbcore: registered new interface driver snd-usb-6fi= re [ 10.458789][ T1] usbcore: registered new interface driver snd-usb-hif= ace [ 10.460996][ T1] usbcore: registered new interface driver snd-bcd2000 [ 10.463111][ T1] usbcore: registered new interface driver snd_usb_pod [ 10.466398][ T1] usbcore: registered new interface driver snd_usb_pod= hd [ 10.468273][ T1] usbcore: registered new interface driver snd_usb_ton= eport [ 10.469725][ T1] usbcore: registered new interface driver snd_usb_var= iax [ 10.474004][ T1] drop_monitor: Initializing network drop monitor serv= ice [ 10.476401][ T1] NET: Registered PF_LLC protocol family [ 10.477481][ T1] GACT probability on [ 10.478257][ T1] Mirror/redirect action on [ 10.479172][ T1] Simple TC action Loaded [ 10.482782][ T1] netem: version 1.3 [ 10.483673][ T1] u32 classifier [ 10.484180][ T1] Performance counters on [ 10.484834][ T1] input device check on [ 10.486023][ T1] Actions configured [ 10.489157][ T1] nf_conntrack_irc: failed to register helpers [ 10.490084][ T1] nf_conntrack_sane: failed to register helpers [ 10.598437][ T1] nf_conntrack_sip: failed to register helpers [ 10.604205][ T2709] kworker/u8:5 (2709) used greatest stack depth: 24784= bytes left [ 10.604399][ T1] xt_time: kernel timezone is -0000 [ 10.606687][ T1] IPVS: Registered protocols (TCP, UDP, SCTP, AH, ESP) [ 10.607753][ T1] IPVS: Connection hash table configured (size=3D4096,= memory=3D32Kbytes) [ 10.609718][ T1] IPVS: ipvs loaded. [ 10.610454][ T1] IPVS: [rr] scheduler registered. [ 10.611224][ T1] IPVS: [wrr] scheduler registered. [ 10.612068][ T1] IPVS: [lc] scheduler registered. [ 10.612780][ T1] IPVS: [wlc] scheduler registered. [ 10.613556][ T1] IPVS: [fo] scheduler registered. [ 10.614304][ T1] IPVS: [ovf] scheduler registered. [ 10.615149][ T1] IPVS: [lblc] scheduler registered. [ 10.615886][ T1] IPVS: [lblcr] scheduler registered. [ 10.616665][ T1] IPVS: [dh] scheduler registered. [ 10.617614][ T1] IPVS: [sh] scheduler registered. [ 10.618521][ T1] IPVS: [mh] scheduler registered. [ 10.619321][ T1] IPVS: [sed] scheduler registered. [ 10.620373][ T1] IPVS: [nq] scheduler registered. [ 10.621182][ T1] IPVS: [twos] scheduler registered. [ 10.622179][ T1] IPVS: [sip] pe registered. [ 10.623331][ T1] ipip: IPv4 and MPLS over IPv4 tunneling driver [ 10.627241][ T1] gre: GRE over IPv4 demultiplexor driver [ 10.628252][ T1] ip_gre: GRE over IPv4 tunneling driver [ 10.637645][ T1] IPv4 over IPsec tunneling driver [ 10.641661][ T1] Initializing XFRM netlink socket [ 10.642642][ T1] IPsec XFRM device driver [ 10.643733][ T1] NET: Registered PF_INET6 protocol family [ 10.656555][ T1] Segment Routing with IPv6 [ 10.657375][ T1] RPL Segment Routing with IPv6 [ 10.658370][ T1] In-situ OAM (IOAM) with IPv6 [ 10.659392][ T1] mip6: Mobile IPv6 [ 10.663271][ T1] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 10.670008][ T1] ip6_gre: GRE over IPv6 tunneling driver [ 10.674292][ T1] NET: Registered PF_PACKET protocol family [ 10.676334][ T1] NET: Registered PF_KEY protocol family [ 10.677683][ T1] Bridge firewalling registered [ 10.679324][ T1] NET: Registered PF_X25 protocol family [ 10.680368][ T1] X25: Linux Version 0.2 [ 10.716733][ T1] NET: Registered PF_NETROM protocol family [ 10.753122][ T1] NET: Registered PF_ROSE protocol family [ 10.754387][ T1] NET: Registered PF_AX25 protocol family [ 10.757938][ T1] can: controller area network core [ 10.758970][ T1] NET: Registered PF_CAN protocol family [ 10.759924][ T1] can: raw protocol [ 10.760534][ T1] can: broadcast manager protocol [ 10.761312][ T1] can: netlink gateway - max_hops=3D1 [ 10.762339][ T1] can: SAE J1939 [ 10.762919][ T1] can: isotp protocol (max_pdu_size 8300) [ 10.764278][ T1] Bluetooth: RFCOMM TTY layer initialized [ 10.767642][ T1] Bluetooth: RFCOMM socket layer initialized [ 10.768787][ T1] Bluetooth: RFCOMM ver 1.11 [ 10.769560][ T1] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 10.770537][ T1] Bluetooth: BNEP filters: protocol multicast [ 10.771518][ T1] Bluetooth: BNEP socket layer initialized [ 10.772349][ T1] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 10.773324][ T1] Bluetooth: HIDP socket layer initialized [ 10.778406][ T1] NET: Registered PF_RXRPC protocol family [ 10.779406][ T1] Key type rxrpc registered [ 10.780204][ T1] Key type rxrpc_s registered [ 10.781608][ T1] NET: Registered PF_KCM protocol family [ 10.783775][ T1] lec:lane_module_init: lec.c: initialized [ 10.784692][ T1] mpoa:atm_mpoa_init: mpc.c: initialized [ 10.785946][ T1] l2tp_core: L2TP core driver, V2.0 [ 10.786934][ T1] l2tp_ppp: PPPoL2TP kernel driver, V2.0 [ 10.787969][ T1] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 10.789031][ T1] l2tp_netlink: L2TP netlink interface [ 10.789899][ T1] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 10.790827][ T1] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2= TPv3) [ 10.792073][ T1] NET: Registered PF_PHONET protocol family [ 10.793120][ T1] 8021q: 802.1Q VLAN Support v1.8 [ 10.808908][ T1] DCCP: Activated CCID 2 (TCP-like) [ 10.814230][ T1] DCCP: Activated CCID 3 (TCP-Friendly Rate Control) [ 10.821673][ T1] DCCP is deprecated and scheduled to be removed in 20= 25, please contact the netdev mailing list [ 10.832766][ T1] sctp: Hash tables configured (bind 32/56) [ 10.840557][ T1] NET: Registered PF_RDS protocol family [ 10.847237][ T1] Registered RDS/infiniband transport [ 10.853730][ T1] Registered RDS/tcp transport [ 10.858656][ T1] tipc: Activated (version 2.0.0) [ 10.864431][ T1] NET: Registered PF_TIPC protocol family [ 10.871052][ T1] tipc: Started in single node mode [ 10.877071][ T1] NET: Registered PF_SMC protocol family [ 10.883181][ T1] 9pnet: Installing 9P2000 support [ 10.888922][ T1] NET: Registered PF_CAIF protocol family [ 10.898506][ T1] NET: Registered PF_IEEE802154 protocol family [ 10.905068][ T1] Key type dns_resolver registered [ 10.910312][ T1] Key type ceph registered [ 10.915415][ T1] libceph: loaded (mon/osd proto 15/24) [ 10.922141][ T1] batman_adv: B.A.T.M.A.N. advanced 2024.2 (compatibil= ity version 15) loaded [ 10.931398][ T1] openvswitch: Open vSwitch switching datapath [ 10.939441][ T1] NET: Registered PF_VSOCK protocol family [ 10.945999][ T1] mpls_gso: MPLS GSO support [ 10.967691][ T1] IPI shorthand broadcast: enabled [ 10.973087][ T1] AES CTR mode by8 optimization enabled [ 12.104613][ T1] sched_clock: Marking stable (12060025057, 34932274)-= >(12093279688, 1677643) [ 12.119544][ T1] registered taskstats version 1 [ 12.141500][ T1] Loading compiled-in X.509 certificates [ 12.199712][ T1] Loaded X.509 cert 'Build time autogenerated kernel k= ey: 34511b135d2758a08a46bc4f061ab8667a62b201' [ 12.396949][ T1] zswap: loaded using pool 842/z3fold [ 12.404836][ T1] Demotion targets for Node 0: null [ 12.410189][ T1] Demotion targets for Node 1: null [ 12.415469][ T1] debug_vm_pgtable: [debug_vm_pgtable ]: Valid= ating architecture page table helpers [ 14.168414][ T1] Key type .fscrypt registered [ 14.173201][ T1] Key type fscrypt-provisioning registered [ 14.184392][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 14.207263][ T1] Btrfs loaded, assert=3Don, ref-verify=3Don, zoned=3D= yes, fsverity=3Dyes [ 14.215931][ T1] Key type big_key registered [ 14.229036][ T1] Key type encrypted registered [ 14.233923][ T1] AppArmor: AppArmor sha256 policy hashing enabled [ 14.240771][ T1] ima: No TPM chip found, activating TPM-bypass! [ 14.247197][ T1] Loading compiled-in module X.509 certificates [ 14.271408][ T1] Loaded X.509 cert 'Build time autogenerated kernel k= ey: 34511b135d2758a08a46bc4f061ab8667a62b201' [ 14.282261][ T1] ima: Allocated hash algorithm: sha256 [ 14.288286][ T1] ima: No architecture policies found [ 14.294068][ T1] evm: Initialising EVM extended attributes: [ 14.300089][ T1] evm: security.selinux (disabled) [ 14.305769][ T1] evm: security.SMACK64 (disabled) [ 14.310887][ T1] evm: security.SMACK64EXEC (disabled) [ 14.316468][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 14.322337][ T1] evm: security.SMACK64MMAP (disabled) [ 14.327813][ T1] evm: security.apparmor [ 14.332050][ T1] evm: security.ima [ 14.335873][ T1] evm: security.capability [ 14.340547][ T1] evm: HMAC attrs: 0x1 [ 14.347257][ T1] PM: Magic number: 12:295:746 [ 14.353400][ T1] printk: legacy console [netcon0] enabled [ 14.359315][ T1] netconsole: network logging started [ 14.365308][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 14.375941][ T1] rdma_rxe: loaded [ 14.380278][ T1] cfg80211: Loading compiled-in X.509 certificates for= regulatory database [ 14.391416][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 14.399964][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06= c7248db18c600' [ 14.409267][ T939] platform regulatory.0: Direct firmware load for regu= latory.db failed with error -2 [ 14.418937][ T1] clk: Disabling unused clocks [ 14.419013][ T939] platform regulatory.0: Falling back to sysfs fallbac= k for: regulatory.db [ 14.423899][ T1] ALSA device list: [ 14.436380][ T1] #0: Dummy 1 [ 14.439870][ T1] #1: Loopback 1 [ 14.443576][ T1] #2: Virtual MIDI Card 1 [ 14.451100][ T1] md: Waiting for all devices to be available before a= utodetect [ 14.458822][ T1] md: If you don't use raid, use raid=3Dnoautodetect [ 14.465370][ T1] md: Autodetecting RAID arrays. [ 14.470381][ T1] md: autorun ... [ 14.474008][ T1] md: ... autorun DONE. [ 14.538322][ T1] EXT4-fs (sda1): mounted filesystem b4773fba-1738-4da= 0-8a90-0fe043d0a496 ro with ordered data mode. Quota mode: none. [ 14.551126][ T1] VFS: Mounted root (ext4 filesystem) readonly on devi= ce 8:1. [ 14.578998][ T1] devtmpfs: mounted [ 14.631301][ T1] Freeing unused kernel image (initmem) memory: 26736K [ 14.641332][ T1] Write protecting the kernel read-only data: 219136k [ 14.656226][ T1] Freeing unused kernel image (rodata/data gap) memory= : 1100K [ 14.763403][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 14.771313][ T1] x86/mm: Checking user space page tables [ 14.864011][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 14.877068][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_pan= ic=3D1': parameter not found [ 14.886913][ T1] Run /sbin/init as init process [ 15.655177][ T4652] mount (4652) used greatest stack depth: 23104 bytes = left [ 15.709114][ T4653] EXT4-fs (sda1): re-mounted b4773fba-1738-4da0-8a90-0= fe043d0a496 r/w. Quota mode: none. mount: mounting devtmpfs on /dev failed: Device or resource busy mount: mounting smackfs on /sys/fs/smackfs failed: No such file or director= y mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or direct= ory [ 15.856092][ T4657] mount (4657) used greatest stack depth: 20608 bytes = left Starting syslogd: OK Starting acpid: [ 76.826513][ T939] cfg80211: failed to load regulatory.= db 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'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.22.7' 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-build1417808173=3D/tmp/go-build -gno-record-gc= c-switches' git status (err=3D) HEAD detached at 402f1df054 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 go fmt ./sys/... >/dev/null touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D402f1df054ddb07ed5bb299d08c781354eb06607 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20241007-221845'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execpr= og 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 -fpermissive -w -DGOOS_linu= x=3D1 -DGOARCH_amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"402f1df054ddb07ed5bb299d08c781354e= b06607\" /usr/bin/ld: /tmp/ccIZFOUJ.o: in function `test_cover_filter()': executor.cc:(.text+0x1424b): warning: the use of `tempnam' is dangerous, be= tter use `mkstemp' /usr/bin/ld: /tmp/ccIZFOUJ.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=3D143537d0580000 Tested on: commit: b6270c3b Add linux-next specific files for 20241009 git tree: linux-next kernel config: https://syzkaller.appspot.com/x/.config?x=3Daa19e8f0089d270= 4 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dcee29f5a48caf10cd= 475 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debia= n) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D169837d05800= 00