Re: [syzbot] [hfs?] general protection fault in __hfsplus_setxattr

syzbot
2026-04-15T04:25:03Z

Hello,

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

ivid-018: CEC adapter cec36 registered for HDMI input
[ 24.460711][ T1] vivid-018: V4L2 capture device registered as video79
[ 24.469342][ T1] vivid-018: CEC adapter cec37 registered for HDMI output 0
[ 24.478449][ T1] vivid-018: V4L2 output device registered as video80
[ 24.486688][ T1] vivid-018: V4L2 capture device registered as vbi36, supports raw and sliced VBI
[ 24.497790][ T1] vivid-018: V4L2 output device registered as vbi37, supports raw and sliced VBI
[ 24.508381][ T1] vivid-018: V4L2 capture device registered as swradio18
[ 24.517861][ T1] vivid-018: V4L2 receiver device registered as radio36
[ 24.526820][ T1] vivid-018: V4L2 transmitter device registered as radio37
[ 24.535592][ T1] vivid-018: V4L2 metadata capture device registered as video81
[ 24.544848][ T1] vivid-018: V4L2 metadata output device registered as video82
[ 24.553920][ T1] vivid-018: V4L2 touch capture device registered as v4l-touch18
[ 24.564329][ T1] vivid-019: using multiplanar format API
[ 24.593769][ T1] vivid-019: CEC adapter cec38 registered for HDMI input
[ 24.602391][ T1] vivid-019: V4L2 capture device registered as video83
[ 24.611519][ T1] vivid-019: CEC adapter cec39 registered for HDMI output 0
[ 24.620264][ T1] vivid-019: V4L2 output device registered as video84
[ 24.629189][ T1] vivid-019: V4L2 capture device registered as vbi38, supports raw and sliced VBI
[ 24.639910][ T1] vivid-019: V4L2 output device registered as vbi39, supports raw and sliced VBI
[ 24.650836][ T1] vivid-019: V4L2 capture device registered as swradio19
[ 24.659057][ T1] vivid-019: V4L2 receiver device registered as radio38
[ 24.668627][ T1] vivid-019: V4L2 transmitter device registered as radio39
[ 24.677756][ T1] vivid-019: V4L2 metadata capture device registered as video85
[ 24.686876][ T1] vivid-019: V4L2 metadata output device registered as video86
[ 24.696367][ T1] vivid-019: V4L2 touch capture device registered as v4l-touch19
[ 24.705858][ T1] vivid-020: using single planar format API
[ 24.735848][ T1] vivid-020: CEC adapter cec40 registered for HDMI input
[ 24.744490][ T1] vivid-020: V4L2 capture device registered as video87
[ 24.753871][ T1] vivid-020: CEC adapter cec41 registered for HDMI output 0
[ 24.762879][ T1] vivid-020: V4L2 output device registered as video88
[ 24.771516][ T1] vivid-020: V4L2 capture device registered as vbi40, supports raw and sliced VBI
[ 24.782336][ T1] vivid-020: V4L2 output device registered as vbi41, supports raw and sliced VBI
[ 24.793924][ T1] vivid-020: V4L2 capture device registered as swradio20
[ 24.802845][ T1] vivid-020: V4L2 receiver device registered as radio40
[ 24.812023][ T1] vivid-020: V4L2 transmitter device registered as radio41
[ 24.820555][ T1] vivid-020: V4L2 metadata capture device registered as video89
[ 24.829960][ T1] vivid-020: V4L2 metadata output device registered as video90
[ 24.839298][ T1] vivid-020: V4L2 touch capture device registered as v4l-touch20
[ 24.849176][ T1] vivid-021: using multiplanar format API
[ 24.879306][ T1] vivid-021: CEC adapter cec42 registered for HDMI input
[ 24.887854][ T1] vivid-021: V4L2 capture device registered as video91
[ 24.896819][ T1] vivid-021: CEC adapter cec43 registered for HDMI output 0
[ 24.906493][ T1] vivid-021: V4L2 output device registered as video92
[ 24.915427][ T1] vivid-021: V4L2 capture device registered as vbi42, supports raw and sliced VBI
[ 24.926915][ T1] vivid-021: V4L2 output device registered as vbi43, supports raw and sliced VBI
[ 24.938049][ T1] vivid-021: V4L2 capture device registered as swradio21
[ 24.946344][ T1] vivid-021: V4L2 receiver device registered as radio42
[ 24.954886][ T1] vivid-021: V4L2 transmitter device registered as radio43
[ 24.963740][ T1] vivid-021: V4L2 metadata capture device registered as video93
[ 24.972690][ T1] vivid-021: V4L2 metadata output device registered as video94
[ 24.982436][ T1] vivid-021: V4L2 touch capture device registered as v4l-touch21
[ 24.991796][ T1] vivid-022: using single planar format API
[ 25.023360][ T1] vivid-022: CEC adapter cec44 registered for HDMI input
[ 25.031860][ T1] vivid-022: V4L2 capture device registered as video95
[ 25.040686][ T1] vivid-022: CEC adapter cec45 registered for HDMI output 0
[ 25.049376][ T1] vivid-022: V4L2 output device registered as video96
[ 25.057784][ T1] vivid-022: V4L2 capture device registered as vbi44, supports raw and sliced VBI
[ 25.068764][ T1] vivid-022: V4L2 output device registered as vbi45, supports raw and sliced VBI
[ 25.080235][ T1] vivid-022: V4L2 capture device registered as swradio22
[ 25.089507][ T1] vivid-022: V4L2 receiver device registered as radio44
[ 25.098862][ T1] vivid-022: V4L2 transmitter device registered as radio45
[ 25.107868][ T1] vivid-022: V4L2 metadata capture device registered as video97
[ 25.117610][ T1] vivid-022: V4L2 metadata output device registered as video98
[ 25.126451][ T1] vivid-022: V4L2 touch capture device registered as v4l-touch22
[ 25.136447][ T1] vivid-023: using multiplanar format API
[ 25.167173][ T1] vivid-023: CEC adapter cec46 registered for HDMI input
[ 25.176007][ T1] vivid-023: V4L2 capture device registered as video99
[ 25.185215][ T1] vivid-023: CEC adapter cec47 registered for HDMI output 0
[ 25.194114][ T1] vivid-023: V4L2 output device registered as video100
[ 25.202614][ T1] vivid-023: V4L2 capture device registered as vbi46, supports raw and sliced VBI
[ 25.213110][ T1] vivid-023: V4L2 output device registered as vbi47, supports raw and sliced VBI
[ 25.225029][ T1] vivid-023: V4L2 capture device registered as swradio23
[ 25.233428][ T1] vivid-023: V4L2 receiver device registered as radio46
[ 25.242024][ T1] vivid-023: V4L2 transmitter device registered as radio47
[ 25.250637][ T1] vivid-023: V4L2 metadata capture device registered as video101
[ 25.260336][ T1] vivid-023: V4L2 metadata output device registered as video102
[ 25.269385][ T1] vivid-023: V4L2 touch capture device registered as v4l-touch23
[ 25.279153][ T1] vivid-024: using single planar format API
[ 25.308447][ T1] vivid-024: CEC adapter cec48 registered for HDMI input
[ 25.317868][ T1] vivid-024: V4L2 capture device registered as video103
[ 25.326130][ T1] vivid-024: CEC adapter cec49 registered for HDMI output 0
[ 25.333599][ T1] videodev: could not get a free minor
[ 25.376197][ T1] usbcore: registered new interface driver radioshark2
[ 25.385210][ T1] usbcore: registered new interface driver radioshark
[ 25.392833][ T1] usbcore: registered new interface driver radio-si470x
[ 25.401184][ T1] usbcore: registered new interface driver radio-usb-si4713
[ 25.410036][ T1] usbcore: registered new interface driver dsbr100
[ 25.418033][ T1] usbcore: registered new interface driver radio-keene
[ 25.425663][ T1] usbcore: registered new interface driver radio-ma901
[ 25.433559][ T1] usbcore: registered new interface driver radio-mr800
[ 25.441237][ T1] usbcore: registered new interface driver radio-raremono
[ 25.452962][ T1] usbcore: registered new interface driver powerz
[ 25.460681][ T1] usbcore: registered new interface driver pcwd_usb
[ 25.474431][ T1] device-mapper: core: CONFIG_IMA_DISABLE_HTABLE is disabled. Duplicate IMA measurements will not be recorded in the IMA log.
[ 25.487948][ T1] device-mapper: uevent: version 1.0.3
[ 25.495214][ T1] device-mapper: ioctl: 4.50.0-ioctl (2025-04-28) initialised: dm-devel@lists.linux.dev
[ 25.507610][ T1] device-mapper: multipath round-robin: version 1.2.0 loaded
[ 25.515020][ T1] device-mapper: multipath queue-length: version 0.2.0 loaded
[ 25.522747][ T1] device-mapper: multipath service-time: version 0.3.0 loaded
[ 25.532623][ T1] Bluetooth: HCI UART driver ver 2.3
[ 25.537987][ T1] Bluetooth: HCI UART protocol H4 registered
[ 25.544157][ T1] Bluetooth: HCI UART protocol BCSP registered
[ 25.552547][ T1] Bluetooth: HCI UART protocol LL registered
[ 25.559018][ T1] Bluetooth: HCI UART protocol Three-wire (H5) registered
[ 25.566418][ T1] Bluetooth: HCI UART protocol QCA registered
[ 25.572559][ T1] Bluetooth: HCI UART protocol AG6XX registered
[ 25.579440][ T1] Bluetooth: HCI UART protocol Marvell registered
[ 25.586807][ T1] usbcore: registered new interface driver bcm203x
[ 25.594495][ T1] usbcore: registered new interface driver bpa10x
[ 25.602194][ T1] usbcore: registered new interface driver bfusb
[ 25.609647][ T1] usbcore: registered new interface driver btusb
[ 25.617171][ T1] usbcore: registered new interface driver ath3k
[ 25.624527][ T1] Modular ISDN core version 1.1.29
[ 25.631509][ T1] NET: Registered PF_ISDN protocol family
[ 25.637898][ T1] DSP module 2.0
[ 25.641488][ T1] mISDN_dsp: DSP clocks every 80 samples. This equals 1 jiffies.
[ 25.658473][ T1] mISDN: Layer-1-over-IP driver Rev. 2.00
[ 25.665288][ T1] 0 virtual devices registered
[ 25.672228][ T1] usbcore: registered new interface driver HFC-S_USB
[ 25.679284][ T1] amd_pstate: the _CPC object is not present in SBIOS or ACPI disabled
[ 25.687888][ T1] VUB300 Driver rom wait states = 1C irqpoll timeout = 0400
[ 25.691039][ T1] usbcore: registered new interface driver vub300
[ 25.706631][ T1] usbcore: registered new interface driver ushc
[ 25.725495][ T1] iscsi: registered transport (iser)
[ 25.733153][ T1] SoftiWARP attached
[ 25.761668][ T1] hid: raw HID events driver (C) Jiri Kosina
[ 25.895880][ T1] usbcore: registered new interface driver usbhid
[ 25.902812][ T1] usbhid: USB HID core driver
[ 25.917852][ T1] usbcore: registered new interface driver es2_ap_driver
[ 25.925535][ T1] comedi: version 0.7.76 - http://www.comedi.org
[ 25.942673][ T1] comedi comedi4: comedi_test: 1000000 microvolt, 100000 microsecond waveform attached
[ 25.980103][ T1] comedi comedi4: driver 'comedi_test' has successfully auto-configured 'comedi_test'.
[ 25.996221][ T1] usbcore: registered new interface driver dt9812
[ 26.003881][ T1] usbcore: registered new interface driver ni6501
[ 26.011192][ T1] usbcore: registered new interface driver usbdux
[ 26.019544][ T1] usbcore: registered new interface driver usbduxfast
[ 26.027236][ T1] usbcore: registered new interface driver usbduxsigma
[ 26.034964][ T1] usbcore: registered new interface driver vmk80xx
[ 26.042665][ T1] greybus: registered new driver hid
[ 26.049897][ T1] greybus: registered new driver gbphy
[ 26.056141][ T1] gb_gbphy: registered new driver usb
[ 26.062124][ T1] asus_wmi: ASUS WMI generic driver loaded
[ 26.082299][ T1] gnss: GNSS driver registered with major 494
[ 26.091967][ T1] usbcore: registered new interface driver gnss-usb
[ 26.099740][ T1] usbcore: registered new interface driver hdm_usb
[ 26.282935][ T1] usbcore: registered new interface driver snd-usb-audio
[ 26.291693][ T1] usbcore: registered new interface driver snd-ua101
[ 26.299785][ T1] usbcore: registered new interface driver snd-usb-usx2y
[ 26.307989][ T1] usbcore: registered new interface driver snd-usb-us122l
[ 26.317325][ T1] usbcore: registered new interface driver snd-usb-caiaq
[ 26.325489][ T1] usbcore: registered new interface driver snd-usb-6fire
[ 26.333818][ T1] usbcore: registered new interface driver snd-usb-hiface
[ 26.342327][ T1] usbcore: registered new interface driver snd-bcd2000
[ 26.350477][ T1] usbcore: registered new interface driver snd_usb_pod
[ 26.358884][ T1] usbcore: registered new interface driver snd_usb_podhd
[ 26.366969][ T1] usbcore: registered new interface driver snd_usb_toneport
[ 26.375460][ T1] usbcore: registered new interface driver snd_usb_variax
[ 26.389581][ T1] drop_monitor: Initializing network drop monitor service
[ 26.397791][ T1] NET: Registered PF_LLC protocol family
[ 26.404216][ T1] GACT probability on
[ 26.408660][ T1] Mirror/redirect action on
[ 26.413555][ T1] Simple TC action Loaded
[ 26.424292][ T1] netem: version 1.3
[ 26.428565][ T1] u32 classifier
[ 26.432124][ T1] Performance counters on
[ 26.436866][ T1] input device check on
[ 26.441599][ T1] Actions configured
[ 26.449666][ T1] nf_conntrack_irc: failed to register helpers
[ 26.455938][ T1] nf_conntrack_sane: failed to register helpers

syzkaller build log:
go env (err=<nil>)
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE='auto'
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN=''
GOCACHE='/syzkaller/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/syzkaller/.config/go/env'
GOEXE=''
GOEXPERIMENT=''
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3023288941=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs-2/linux/gopath'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/local/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/syzkaller/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.26.0'
GOWORK=''
PKG_CONFIG='pkg-config'

git status (err=<nil>)
HEAD detached at 362d1323892
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/contributing.md#using-syz-env
go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=362d1323892bfa754e670449946f45413c12bd24 -X github.com/google/syzkaller/prog.gitRevisionDate=20260414-080341" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=362d1323892bfa754e670449946f45413c12bd24 -X github.com/google/syzkaller/prog.gitRevisionDate=20260414-080341" ./sys/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/contributing.md#using-syz-env
bin/syz-sysgen
touch .descriptions
GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=362d1323892bfa754e670449946f45413c12bd24 -X github.com/google/syzkaller/prog.gitRevisionDate=20260414-080341" -o ./bin/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 -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"362d1323892bfa754e670449946f45413c12bd24\"
/usr/bin/ld: /tmp/ccVJtmVb.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
./tools/check-syzos.sh 2>/dev/null

Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=129384ce580000

Tested on:

commit: 5c0f43e8 Merge tag 'kernel-7.1-rc1.misc' of git://git...
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=95729ed00549063a
dashboard link: https://syzkaller.appspot.com/bug?extid=bc70a12e438dadba4fb4
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=135bfeba580000