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Message-ID: <0000000000003ece180616224c96@google.com>
Date: Mon, 15 Apr 2024 06:07:04 -0700
From: syzbot <syzbot+d6282a21a27259b5f7e7@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, mukattreyee@...il.com,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bluetooth?] WARNING in hci_conn_set_handle
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
[ T1] usbcore: registered new interface driver rtsx_usb
[ 9.001776][ T1] usbcore: registered new interface driver viperboard
[ 9.003717][ T1] usbcore: registered new interface driver dln2
[ 9.005598][ T1] usbcore: registered new interface driver pn533_usb
[ 9.013420][ T1] nfcsim 0.2 initialized
[ 9.014891][ T1] usbcore: registered new interface driver port100
[ 9.017076][ T1] usbcore: registered new interface driver nfcmrvl
[ 9.024386][ T1] Loading iSCSI transport class v2.0-870.
[ 9.045243][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 9.054420][ T1] ------------[ cut here ]------------
[ 9.055600][ T1] refcount_t: decrement hit 0; leaking memory.
[ 9.058135][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0
[ 9.059662][ T1] Modules linked in:
[ 9.060283][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc4-syzkaller-g0bbac3facb5d #0
[ 9.061791][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 9.064097][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 9.065736][ T1] Code: b2 00 00 00 e8 17 b7 e7 fc 5b 5d c3 cc cc cc cc e8 0b b7 e7 fc c6 05 da 2a e6 0a 01 90 48 c7 c7 40 3b 1f 8c e8 67 51 aa fc 90 <0f> 0b 90 90 eb d9 e8 eb b6 e7 fc c6 05 b7 2a e6 0a 01 90 48 c7 c7
[ 9.070788][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 9.072245][ T1] RAX: 351085e3228a4100 RBX: ffff888140b8782c RCX: ffff8880166d0000
[ 9.073867][ T1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[ 9.075497][ T1] RBP: 0000000000000004 R08: ffffffff815880a2 R09: fffffbfff1c39b48
[ 9.077798][ T1] R10: dffffc0000000000 R11: fffffbfff1c39b48 R12: ffffea000502fdc0
[ 9.079999][ T1] R13: ffffea000502fdc8 R14: 1ffffd4000a05fb9 R15: 0000000000000000
[ 9.081851][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[ 9.083677][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.084919][ T1] CR2: ffff88823ffff000 CR3: 000000000e134000 CR4: 00000000003506f0
[ 9.087312][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 9.089274][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 9.091115][ T1] Call Trace:
[ 9.091939][ T1] <TASK>
[ 9.092755][ T1] ? __warn+0x163/0x4e0
[ 9.093619][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 9.095294][ T1] ? report_bug+0x2b3/0x500
[ 9.096601][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 9.097921][ T1] ? handle_bug+0x3e/0x70
[ 9.098837][ T1] ? exc_invalid_op+0x1a/0x50
[ 9.099638][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 9.100572][ T1] ? __warn_printk+0x292/0x360
[ 9.101393][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 9.102618][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 9.103558][ T1] __free_pages_ok+0xc60/0xd90
[ 9.104346][ T1] make_alloc_exact+0xa3/0xf0
[ 9.105584][ T1] vring_alloc_queue_split+0x20a/0x600
[ 9.107299][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 9.108282][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 9.109083][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 9.109892][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 9.111059][ T1] ? really_probe+0x2b8/0xad0
[ 9.111905][ T1] ? driver_probe_device+0x50/0x430
[ 9.112883][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 9.114048][ T1] ? ret_from_fork+0x4b/0x80
[ 9.115005][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 9.116583][ T1] vring_create_virtqueue+0xca/0x110
[ 9.117692][ T1] ? __pfx_vp_notify+0x10/0x10
[ 9.118573][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.119440][ T1] setup_vq+0xe9/0x2d0
[ 9.120171][ T1] ? __pfx_vp_notify+0x10/0x10
[ 9.121026][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.122122][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.123154][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.124442][ T1] vp_setup_vq+0xbf/0x330
[ 9.125185][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 9.126354][ T1] ? ioread16+0x2f/0x90
[ 9.127130][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.128255][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 9.129303][ T1] vp_find_vqs+0x4c/0x4e0
[ 9.130202][ T1] virtscsi_init+0x8db/0xd00
[ 9.131552][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 9.132275][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 9.133141][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 9.133889][ T1] ? vp_get+0xfd/0x140
[ 9.134477][ T1] virtscsi_probe+0x3ea/0xf60
[ 9.135321][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 9.136249][ T1] ? kernfs_add_one+0x156/0x8b0
[ 9.136999][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 9.137816][ T1] ? virtio_features_ok+0x10c/0x270
[ 9.138562][ T1] virtio_dev_probe+0x991/0xaf0
[ 9.139279][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 9.140212][ T1] really_probe+0x2b8/0xad0
[ 9.141018][ T1] __driver_probe_device+0x1a2/0x390
[ 9.141833][ T1] driver_probe_device+0x50/0x430
[ 9.142652][ T1] __driver_attach+0x45f/0x710
[ 9.143347][ T1] ? __pfx___driver_attach+0x10/0x10
[ 9.144150][ T1] bus_for_each_dev+0x239/0x2b0
[ 9.144879][ T1] ? __pfx___driver_attach+0x10/0x10
[ 9.145689][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 9.146652][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 9.147529][ T1] bus_add_driver+0x347/0x620
[ 9.148216][ T1] driver_register+0x23a/0x320
[ 9.149041][ T1] virtio_scsi_init+0x69/0xe0
[ 9.149787][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 9.150636][ T1] do_one_initcall+0x248/0x880
[ 9.151316][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 9.152299][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 9.153225][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 9.154272][ T1] ? __pfx_parse_args+0x10/0x10
[ 9.155071][ T1] ? do_initcalls+0x1c/0x80
[ 9.155945][ T1] ? rcu_is_watching+0x15/0xb0
[ 9.156723][ T1] do_initcall_level+0x157/0x210
[ 9.157685][ T1] do_initcalls+0x3f/0x80
[ 9.158363][ T1] kernel_init_freeable+0x435/0x5d0
[ 9.159252][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 9.160093][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 9.161282][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.162184][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.162958][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.163681][ T1] kernel_init+0x1d/0x2b0
[ 9.164282][ T1] ret_from_fork+0x4b/0x80
[ 9.164897][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.165604][ T1] ret_from_fork_asm+0x1a/0x30
[ 9.166304][ T1] </TASK>
[ 9.166746][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 9.167732][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc4-syzkaller-g0bbac3facb5d #0
[ 9.168948][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 9.170299][ T1] Call Trace:
[ 9.170755][ T1] <TASK>
[ 9.171219][ T1] dump_stack_lvl+0x241/0x360
[ 9.171943][ T1] ? __pfx_dump_stack_lvl+0x10/0x10
[ 9.172804][ T1] ? __pfx__printk+0x10/0x10
[ 9.173454][ T1] ? _printk+0xd5/0x120
[ 9.175261][ T1] ? vscnprintf+0x5d/0x90
[ 9.176277][ T1] panic+0x349/0x860
[ 9.176277][ T1] ? __warn+0x172/0x4e0
[ 9.176277][ T1] ? __pfx_panic+0x10/0x10
[ 9.176277][ T1] ? show_trace_log_lvl+0x4e6/0x520
[ 9.176277][ T1] ? ret_from_fork_asm+0x1a/0x30
[ 9.176277][ T1] __warn+0x346/0x4e0
[ 9.176277][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 9.176277][ T1] report_bug+0x2b3/0x500
[ 9.176277][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 9.176277][ T1] handle_bug+0x3e/0x70
[ 9.176277][ T1] exc_invalid_op+0x1a/0x50
[ 9.176277][ T1] asm_exc_invalid_op+0x1a/0x20
[ 9.176277][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 9.176277][ T1] Code: b2 00 00 00 e8 17 b7 e7 fc 5b 5d c3 cc cc cc cc e8 0b b7 e7 fc c6 05 da 2a e6 0a 01 90 48 c7 c7 40 3b 1f 8c e8 67 51 aa fc 90 <0f> 0b 90 90 eb d9 e8 eb b6 e7 fc c6 05 b7 2a e6 0a 01 90 48 c7 c7
[ 9.176277][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 9.176277][ T1] RAX: 351085e3228a4100 RBX: ffff888140b8782c RCX: ffff8880166d0000
[ 9.176277][ T1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
[ 9.176277][ T1] RBP: 0000000000000004 R08: ffffffff815880a2 R09: fffffbfff1c39b48
[ 9.176277][ T1] R10: dffffc0000000000 R11: fffffbfff1c39b48 R12: ffffea000502fdc0
[ 9.176277][ T1] R13: ffffea000502fdc8 R14: 1ffffd4000a05fb9 R15: 0000000000000000
[ 9.176277][ T1] ? __warn_printk+0x292/0x360
[ 9.176277][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 9.176277][ T1] __free_pages_ok+0xc60/0xd90
[ 9.176277][ T1] make_alloc_exact+0xa3/0xf0
[ 9.176277][ T1] vring_alloc_queue_split+0x20a/0x600
[ 9.176277][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 9.176277][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 9.176277][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 9.176277][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 9.176277][ T1] ? really_probe+0x2b8/0xad0
[ 9.176277][ T1] ? driver_probe_device+0x50/0x430
[ 9.176277][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 9.176277][ T1] ? ret_from_fork+0x4b/0x80
[ 9.176277][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 9.176277][ T1] vring_create_virtqueue+0xca/0x110
[ 9.176277][ T1] ? __pfx_vp_notify+0x10/0x10
[ 9.176277][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.176277][ T1] setup_vq+0xe9/0x2d0
[ 9.176277][ T1] ? __pfx_vp_notify+0x10/0x10
[ 9.176277][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.176277][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.176277][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.176277][ T1] vp_setup_vq+0xbf/0x330
[ 9.176277][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 9.226166][ T1] ? ioread16+0x2f/0x90
[ 9.226237][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 9.226237][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 9.226237][ T1] vp_find_vqs+0x4c/0x4e0
[ 9.226237][ T1] virtscsi_init+0x8db/0xd00
[ 9.226237][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 9.226237][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 9.226237][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 9.226237][ T1] ? vp_get+0xfd/0x140
[ 9.226237][ T1] virtscsi_probe+0x3ea/0xf60
[ 9.226237][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 9.226237][ T1] ? kernfs_add_one+0x156/0x8b0
[ 9.226237][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 9.226237][ T1] ? virtio_features_ok+0x10c/0x270
[ 9.226237][ T1] virtio_dev_probe+0x991/0xaf0
[ 9.226237][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 9.226237][ T1] really_probe+0x2b8/0xad0
[ 9.226237][ T1] __driver_probe_device+0x1a2/0x390
[ 9.226237][ T1] driver_probe_device+0x50/0x430
[ 9.226237][ T1] __driver_attach+0x45f/0x710
[ 9.226237][ T1] ? __pfx___driver_attach+0x10/0x10
[ 9.226237][ T1] bus_for_each_dev+0x239/0x2b0
[ 9.226237][ T1] ? __pfx___driver_attach+0x10/0x10
[ 9.226237][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 9.226237][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 9.226237][ T1] bus_add_driver+0x347/0x620
[ 9.226237][ T1] driver_register+0x23a/0x320
[ 9.226237][ T1] virtio_scsi_init+0x69/0xe0
[ 9.226237][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 9.226237][ T1] do_one_initcall+0x248/0x880
[ 9.226237][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 9.226237][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 9.226237][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 9.226237][ T1] ? __pfx_parse_args+0x10/0x10
[ 9.226237][ T1] ? do_initcalls+0x1c/0x80
[ 9.226237][ T1] ? rcu_is_watching+0x15/0xb0
[ 9.226237][ T1] do_initcall_level+0x157/0x210
[ 9.226237][ T1] do_initcalls+0x3f/0x80
[ 9.226237][ T1] kernel_init_freeable+0x435/0x5d0
[ 9.226237][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 9.226237][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 9.226237][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.226237][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.226237][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.276351][ T1] kernel_init+0x1d/0x2b0
[ 9.276351][ T1] ret_from_fork+0x4b/0x80
[ 9.276351][ T1] ? __pfx_kernel_init+0x10/0x10
[ 9.276351][ T1] ret_from_fork_asm+0x1a/0x30
[ 9.276351][ T1] </TASK>
[ 9.276351][ T1] Kernel Offset: disabled
[ 9.276351][ T1] Rebooting in 86400 seconds..
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-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'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.21.4'
GCCGO='gccgo'
GOAMD64='v1'
AR='ar'
CC='gcc'
CXX='g++'
CGO_ENABLED='1'
GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod'
GOWORK=''
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
PKG_CONFIG='pkg-config'
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3485891342=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at 56086b24b
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}}' ./sys/syz-sysgen | grep -q false || go install ./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=56086b24bdfd822d3b227edb3064db443cd8c971 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240409-083312'" "-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=56086b24bdfd822d3b227edb3064db443cd8c971 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240409-083312'" "-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=56086b24bdfd822d3b227edb3064db443cd8c971 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240409-083312'" "-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 -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -fpermissive -w -DGOOS_linux=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"56086b24bdfd822d3b227edb3064db443cd8c971\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=115a9fcb180000
Tested on:
commit: 0bbac3fa Linux 6.9-rc4
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
kernel config: https://syzkaller.appspot.com/x/.config?x=c6e826cf3c9c6ffc
dashboard link: https://syzkaller.appspot.com/bug?extid=d6282a21a27259b5f7e7
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Note: no patches were applied.
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