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Message-ID: <0000000000003fc5760614bce8e6@google.com>
Date: Thu, 28 Mar 2024 11:44:03 -0700
From: syzbot <syzbot+af9492708df9797198d6@...kaller.appspotmail.com>
To: eadavis@...com, linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bpf?] [net?] general protection fault in dev_map_enqueue
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
erface driver port100
[ 7.948791][ T1] usbcore: registered new interface driver nfcmrvl
[ 7.955639][ T1] Loading iSCSI transport class v2.0-870.
[ 7.973810][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 7.989145][ T1] ------------[ cut here ]------------
[ 7.990111][ T1] refcount_t: decrement hit 0; leaking memory.
[ 7.991339][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0
[ 7.993340][ T1] Modules linked in:
[ 7.994199][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-syzkaller-11136-g66a27abac311-dirty #0
[ 7.997619][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 8.000127][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 8.001771][ T1] Code: b2 00 00 00 e8 e7 e2 ec fc 5b 5d c3 cc cc cc cc e8 db e2 ec fc c6 05 c6 89 ea 0a 01 90 48 c7 c7 60 ae 1e 8c e8 47 a8 af fc 90 <0f> 0b 90 90 eb d9 e8 bb e2 ec fc c6 05 a3 89 ea 0a 01 90 48 c7 c7
[ 8.004380][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 8.005254][ T1] RAX: ca7328f93391fe00 RBX: ffff888020f9e75c RCX: ffff8880166e0000
[ 8.006549][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 8.008086][ T1] RBP: 0000000000000004 R08: ffffffff8157e022 R09: fffffbfff1c39660
[ 8.009562][ T1] R10: dffffc0000000000 R11: fffffbfff1c39660 R12: ffffea0000851dc0
[ 8.011291][ T1] R13: ffffea0000851dc8 R14: 1ffffd400010a3b9 R15: 0000000000000000
[ 8.012581][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
[ 8.014131][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8.016303][ T1] CR2: ffff88823ffff000 CR3: 000000000e132000 CR4: 00000000003506f0
[ 8.017899][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8.019084][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 8.020661][ T1] Call Trace:
[ 8.021839][ T1] <TASK>
[ 8.022284][ T1] ? __warn+0x163/0x4b0
[ 8.022899][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 8.024608][ T1] ? report_bug+0x2b3/0x500
[ 8.025925][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 8.030150][ T1] ? handle_bug+0x3e/0x70
[ 8.031086][ T1] ? exc_invalid_op+0x1a/0x50
[ 8.033097][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 8.034748][ T1] ? __warn_printk+0x292/0x360
[ 8.037244][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 8.039638][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 8.041044][ T1] __free_pages_ok+0xc42/0xd70
[ 8.042367][ T1] make_alloc_exact+0xa3/0xf0
[ 8.044313][ T1] vring_alloc_queue_split+0x20a/0x600
[ 8.046844][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 8.048504][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 8.049295][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 8.050056][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 8.051457][ T1] ? really_probe+0x29e/0xc50
[ 8.053456][ T1] ? driver_probe_device+0x50/0x430
[ 8.054843][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 8.056263][ T1] ? ret_from_fork+0x4b/0x80
[ 8.057026][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 8.058003][ T1] vring_create_virtqueue+0xca/0x110
[ 8.058950][ T1] ? __pfx_vp_notify+0x10/0x10
[ 8.060241][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.061548][ T1] setup_vq+0xe9/0x2d0
[ 8.062720][ T1] ? __pfx_vp_notify+0x10/0x10
[ 8.066249][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.068677][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.070491][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.071820][ T1] vp_setup_vq+0xbf/0x330
[ 8.073020][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 8.075411][ T1] ? ioread16+0x2f/0x90
[ 8.076389][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.077767][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 8.078910][ T1] vp_find_vqs+0x4c/0x4e0
[ 8.080111][ T1] virtscsi_init+0x8db/0xd00
[ 8.081712][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 8.082801][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 8.083916][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 8.085236][ T1] ? vp_get+0xfd/0x140
[ 8.086319][ T1] virtscsi_probe+0x3ea/0xf60
[ 8.087214][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 8.090404][ T1] ? __pfx_vp_legacy_set_queue_address+0xd/0x10
[ 8.093111][ T1] ? __pfx_vp_set_status+0x10/0x10
[ 8.094419][ T1] ? vp_set_status+0x1a/0x40
[ 8.096021][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 8.099934][ T1] ? virtio_features_ok+0x10c/0x270
[ 8.101665][ T1] virtio_dev_probe+0x991/0xaf0
[ 8.102487][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 8.105262][ T1] really_probe+0x29e/0xc50
[ 8.106620][ T1] __driver_probe_device+0x1a2/0x3e0
[ 8.108641][ T1] driver_probe_device+0x50/0x430
[ 8.110744][ T1] __driver_attach+0x45f/0x710
[ 8.112598][ T1] ? __pfx___driver_attach+0x10/0x10
[ 8.114221][ T1] bus_for_each_dev+0x239/0x2b0
[ 8.115430][ T1] ? __pfx___driver_attach+0x10/0x10
[ 8.116906][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 8.120034][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 8.121570][ T1] bus_add_driver+0x347/0x620
[ 8.123679][ T1] driver_register+0x23a/0x320
[ 8.125189][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.127373][ T1] virtio_scsi_init+0x65/0xe0
[ 8.128421][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.129199][ T1] do_one_initcall+0x238/0x830
[ 8.129859][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.130668][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 8.132091][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 8.133177][ T1] ? __pfx_parse_args+0x10/0x10
[ 8.134004][ T1] ? do_initcalls+0x1c/0x80
[ 8.134724][ T1] ? rcu_is_watching+0x15/0xb0
[ 8.135571][ T1] do_initcall_level+0x157/0x210
[ 8.136670][ T1] do_initcalls+0x3f/0x80
[ 8.137348][ T1] kernel_init_freeable+0x435/0x5d0
[ 8.138236][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 8.139208][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 8.142052][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.143016][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.144221][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.145741][ T1] kernel_init+0x1d/0x2b0
[ 8.146662][ T1] ret_from_fork+0x4b/0x80
[ 8.147514][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.148713][ T1] ret_from_fork_asm+0x1a/0x30
[ 8.149784][ T1] </TASK>
[ 8.150600][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 8.152093][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-syzkaller-11136-g66a27abac311-dirty #0
[ 8.154786][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
[ 8.155798][ T1] Call Trace:
[ 8.155798][ T1] <TASK>
[ 8.155798][ T1] dump_stack_lvl+0x241/0x360
[ 8.155798][ T1] ? __pfx_dump_stack_lvl+0x10/0x10
[ 8.155798][ T1] ? __pfx__printk+0x10/0x10
[ 8.155798][ T1] ? _printk+0xd5/0x120
[ 8.155798][ T1] ? vscnprintf+0x5d/0x90
[ 8.155798][ T1] panic+0x349/0x860
[ 8.155798][ T1] ? __warn+0x172/0x4b0
[ 8.155798][ T1] ? __pfx_panic+0x10/0x10
[ 8.155798][ T1] ? show_trace_log_lvl+0x4e6/0x520
[ 8.155798][ T1] ? ret_from_fork_asm+0x1a/0x30
[ 8.155798][ T1] __warn+0x31e/0x4b0
[ 8.155798][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 8.155798][ T1] report_bug+0x2b3/0x500
[ 8.155798][ T1] ? refcount_warn_saturate+0xfa/0x1d0
[ 8.155798][ T1] handle_bug+0x3e/0x70
[ 8.155798][ T1] exc_invalid_op+0x1a/0x50
[ 8.155798][ T1] asm_exc_invalid_op+0x1a/0x20
[ 8.155798][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0
[ 8.155798][ T1] Code: b2 00 00 00 e8 e7 e2 ec fc 5b 5d c3 cc cc cc cc e8 db e2 ec fc c6 05 c6 89 ea 0a 01 90 48 c7 c7 60 ae 1e 8c e8 47 a8 af fc 90 <0f> 0b 90 90 eb d9 e8 bb e2 ec fc c6 05 a3 89 ea 0a 01 90 48 c7 c7
[ 8.155798][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246
[ 8.155798][ T1] RAX: ca7328f93391fe00 RBX: ffff888020f9e75c RCX: ffff8880166e0000
[ 8.155798][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 8.155798][ T1] RBP: 0000000000000004 R08: ffffffff8157e022 R09: fffffbfff1c39660
[ 8.155798][ T1] R10: dffffc0000000000 R11: fffffbfff1c39660 R12: ffffea0000851dc0
[ 8.196035][ T1] R13: ffffea0000851dc8 R14: 1ffffd400010a3b9 R15: 0000000000000000
[ 8.196035][ T1] ? __warn_printk+0x292/0x360
[ 8.196035][ T1] ? refcount_warn_saturate+0xf9/0x1d0
[ 8.196035][ T1] __free_pages_ok+0xc42/0xd70
[ 8.196035][ T1] make_alloc_exact+0xa3/0xf0
[ 8.196035][ T1] vring_alloc_queue_split+0x20a/0x600
[ 8.196035][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 8.196035][ T1] ? vp_find_vqs+0x4c/0x4e0
[ 8.196035][ T1] ? virtscsi_probe+0x3ea/0xf60
[ 8.196035][ T1] ? virtio_dev_probe+0x991/0xaf0
[ 8.196035][ T1] ? really_probe+0x29e/0xc50
[ 8.196035][ T1] ? driver_probe_device+0x50/0x430
[ 8.196035][ T1] vring_create_virtqueue_split+0xc6/0x310
[ 8.196035][ T1] ? ret_from_fork+0x4b/0x80
[ 8.196035][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 8.196035][ T1] vring_create_virtqueue+0xca/0x110
[ 8.196035][ T1] ? __pfx_vp_notify+0x10/0x10
[ 8.196035][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.196035][ T1] setup_vq+0xe9/0x2d0
[ 8.196035][ T1] ? __pfx_vp_notify+0x10/0x10
[ 8.196035][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.196035][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.196035][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.196035][ T1] vp_setup_vq+0xbf/0x330
[ 8.196035][ T1] ? __pfx_vp_config_changed+0x10/0x10
[ 8.196035][ T1] ? ioread16+0x2f/0x90
[ 8.196035][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 8.196035][ T1] vp_find_vqs_msix+0x8b2/0xc80
[ 8.196035][ T1] vp_find_vqs+0x4c/0x4e0
[ 8.196035][ T1] virtscsi_init+0x8db/0xd00
[ 8.196035][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 8.196035][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 8.196035][ T1] ? scsi_host_alloc+0xa57/0xea0
[ 8.196035][ T1] ? vp_get+0xfd/0x140
[ 8.196035][ T1] virtscsi_probe+0x3ea/0xf60
[ 8.196035][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 8.196035][ T1] ? __pfx_vp_legacy_set_queue_address+0xd/0x10
[ 8.196035][ T1] ? __pfx_vp_set_status+0x10/0x10
[ 8.196035][ T1] ? vp_set_status+0x1a/0x40
[ 8.196035][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10
[ 8.196035][ T1] ? virtio_features_ok+0x10c/0x270
[ 8.196035][ T1] virtio_dev_probe+0x991/0xaf0
[ 8.196035][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 8.196035][ T1] really_probe+0x29e/0xc50
[ 8.196035][ T1] __driver_probe_device+0x1a2/0x3e0
[ 8.196035][ T1] driver_probe_device+0x50/0x430
[ 8.196035][ T1] __driver_attach+0x45f/0x710
[ 8.196035][ T1] ? __pfx___driver_attach+0x10/0x10
[ 8.196035][ T1] bus_for_each_dev+0x239/0x2b0
[ 8.196035][ T1] ? __pfx___driver_attach+0x10/0x10
[ 8.196035][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 8.196035][ T1] ? do_raw_spin_unlock+0x13c/0x8b0
[ 8.246039][ T1] bus_add_driver+0x347/0x620
[ 8.246039][ T1] driver_register+0x23a/0x320
[ 8.246039][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.246039][ T1] virtio_scsi_init+0x65/0xe0
[ 8.246039][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.246039][ T1] do_one_initcall+0x238/0x830
[ 8.246039][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 8.246039][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 8.246039][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 8.246039][ T1] ? __pfx_parse_args+0x10/0x10
[ 8.246039][ T1] ? do_initcalls+0x1c/0x80
[ 8.246039][ T1] ? rcu_is_watching+0x15/0xb0
[ 8.246039][ T1] do_initcall_level+0x157/0x210
[ 8.246039][ T1] do_initcalls+0x3f/0x80
[ 8.246039][ T1] kernel_init_freeable+0x435/0x5d0
[ 8.246039][ T1] ? __pfx_kernel_init_freeable+0x10/0x10
[ 8.246039][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 8.246039][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.246039][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.246039][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.246039][ T1] kernel_init+0x1d/0x2b0
[ 8.246039][ T1] ret_from_fork+0x4b/0x80
[ 8.246039][ T1] ? __pfx_kernel_init+0x10/0x10
[ 8.246039][ T1] ret_from_fork_asm+0x1a/0x30
[ 8.246039][ T1] </TASK>
[ 8.246039][ T1] Kernel Offset: disabled
[ 8.246039][ 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/linux/gopath/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPATH='/syzkaller/jobs/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/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-build1926694584=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at 454571b6a
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=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-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=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-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=454571b6a16598f5a6e015b9fb1a04932bce7ab9 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240326-163935'" "-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=\"454571b6a16598f5a6e015b9fb1a04932bce7ab9\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=114224ee180000
Tested on:
commit: 66a27aba Merge tag 'powerpc-6.9-1' of git://git.kernel..
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel config: https://syzkaller.appspot.com/x/.config?x=9f5be5e6842dd192
dashboard link: https://syzkaller.appspot.com/bug?extid=af9492708df9797198d6
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=1624aed9180000
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