Re: [syzbot] [bpf?] UBSAN: array-index-out-of-bounds in bpf_prog_select_runtime
From: syzbot
Date: Sun Mar 24 2024 - 10:16:11 EST
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
connector registered
[ 9.359254][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on minor 0
[ 9.371403][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on minor 1
[ 9.467368][ T1] Console: switching to colour frame buffer device 128x48
[ 9.484342][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer device
[ 9.486204][ T1] usbcore: registered new interface driver udl
[ 9.578720][ T1] brd: module loaded
[ 9.693765][ T1] loop: module loaded
[ 9.866647][ T1] zram: Added device: zram0
[ 9.881604][ T1] null_blk: disk nullb0 created
[ 9.882855][ T1] null_blk: module loaded
[ 9.885500][ T1] Guest personality initialized and is inactive
[ 9.888414][ T1] VMCI host device registered (name=vmci, major=10, minor=118)
[ 9.889712][ T1] Initialized host personality
[ 9.890736][ T1] usbcore: registered new interface driver rtsx_usb
[ 9.892808][ T1] usbcore: registered new interface driver viperboard
[ 9.895104][ T1] usbcore: registered new interface driver dln2
[ 9.896706][ T1] usbcore: registered new interface driver pn533_usb
[ 9.905496][ T1] nfcsim 0.2 initialized
[ 9.907243][ T1] usbcore: registered new interface driver port100
[ 9.909218][ T1] usbcore: registered new interface driver nfcmrvl
[ 9.920947][ T1] Loading iSCSI transport class v2.0-870.
[ 9.944531][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues
[ 9.956692][ T1] ------------[ cut here ]------------
[ 9.958110][ T1] refcount_t: decrement hit 0; leaking memory.
[ 9.959897][ T1] WARNING: CPU: 1 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210
[ 9.961752][ T1] Modules linked in:
[ 9.963568][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.8.0-syzkaller-13213-g70293240c5ce-dirty #0
[ 9.965624][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 9.967593][ T1] RIP: 0010:refcount_warn_saturate+0x1ed/0x210
[ 9.969540][ T1] Code: 8b e8 97 41 d2 fc 90 0f 0b 90 90 e9 c3 fe ff ff e8 f8 d2 0f fd c6 05 3b 02 4d 0b 01 90 48 c7 c7 80 e3 8e 8b e8 74 41 d2 fc 90 <0f> 0b 90 90 e9 a0 fe ff ff 48 89 ef e8 82 fb 6a fd e9 44 fe ff ff
[ 9.973886][ T1] RSP: 0000:ffffc900000673c0 EFLAGS: 00010286
[ 9.975016][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814fe149
[ 9.976375][ T1] RDX: ffff888016ec8000 RSI: ffffffff814fe156 RDI: 0000000000000001
[ 9.977761][ T1] RBP: ffff8881482bf6cc R08: 0000000000000001 R09: 0000000000000000
[ 9.979278][ T1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881482bf6cc
[ 9.980489][ T1] R13: 0000000000000000 R14: 0000000006d600b9 R15: ffff888016898588
[ 9.981672][ T1] FS: 0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
[ 9.983784][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9.984872][ T1] CR2: 0000000000000000 CR3: 000000000d97a000 CR4: 00000000003506f0
[ 9.985995][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 9.987164][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 9.988333][ T1] Call Trace:
[ 9.988860][ T1] <TASK>
[ 9.989504][ T1] ? show_regs+0x8c/0xa0
[ 9.990098][ T1] ? __warn+0xe5/0x3c0
[ 9.990778][ T1] ? __wake_up_klogd.part.0+0x99/0xf0
[ 9.991767][ T1] ? refcount_warn_saturate+0x1ed/0x210
[ 9.993725][ T1] ? report_bug+0x3c0/0x580
[ 9.994547][ T1] ? handle_bug+0x3d/0x70
[ 9.995476][ T1] ? exc_invalid_op+0x17/0x50
[ 9.996166][ T1] ? asm_exc_invalid_op+0x1a/0x20
[ 9.997066][ T1] ? __warn_printk+0x199/0x350
[ 9.998094][ T1] ? __warn_printk+0x1a6/0x350
[ 9.998882][ T1] ? refcount_warn_saturate+0x1ed/0x210
[ 9.999734][ T1] __reset_page_owner+0x2ea/0x370
[ 10.000503][ T1] __free_pages_ok+0x5a9/0xbf0
[ 10.001625][ T1] ? __split_page_owner+0xdd/0x120
[ 10.002958][ T1] make_alloc_exact+0x165/0x260
[ 10.003811][ T1] vring_alloc_queue+0xc1/0x110
[ 10.004793][ T1] vring_alloc_queue_split+0x186/0x510
[ 10.005541][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 10.006529][ T1] ? kasan_save_stack+0x42/0x60
[ 10.007279][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.008113][ T1] vring_create_virtqueue_split+0xe8/0x280
[ 10.008947][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.009744][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 10.010701][ T1] ? virtio_scsi_init+0x75/0x100
[ 10.011622][ T1] ? do_one_initcall+0x128/0x700
[ 10.012973][ T1] ? kernel_init_freeable+0x69d/0xca0
[ 10.013767][ T1] vring_create_virtqueue+0xd7/0x140
[ 10.014563][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.015363][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.016157][ T1] setup_vq+0x123/0x2f0
[ 10.016919][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.017685][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.018631][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.019563][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.020595][ T1] vp_setup_vq+0xb1/0x380
[ 10.021346][ T1] ? iowrite16+0x55/0x80
[ 10.022721][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.023661][ T1] vp_find_vqs_msix+0x661/0xe30
[ 10.024641][ T1] vp_find_vqs+0x58/0x560
[ 10.025268][ T1] virtscsi_init+0x459/0x9f0
[ 10.025910][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 10.026731][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 10.027554][ T1] ? ioread8+0x4e/0xa0
[ 10.028865][ T1] ? vp_get+0xf6/0x140
[ 10.029652][ T1] virtscsi_probe+0x3b2/0xdd0
[ 10.030336][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 10.031081][ T1] ? trace_raw_output_sched_pi_setprio+0xad/0x150
[ 10.032065][ T1] ? vring_transport_features+0x49/0xb0
[ 10.033373][ T1] virtio_dev_probe+0x5ff/0x9b0
[ 10.034073][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 10.034830][ T1] really_probe+0x23e/0xa90
[ 10.035538][ T1] __driver_probe_device+0x1de/0x440
[ 10.036331][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 10.037275][ T1] driver_probe_device+0x4c/0x1b0
[ 10.038113][ T1] __driver_attach+0x283/0x580
[ 10.039309][ T1] ? __pfx___driver_attach+0x10/0x10
[ 10.040179][ T1] bus_for_each_dev+0x13c/0x1d0
[ 10.041034][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 10.041888][ T1] bus_add_driver+0x2ed/0x640
[ 10.043313][ T1] driver_register+0x15c/0x4b0
[ 10.044142][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 10.045056][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 10.045867][ T1] virtio_scsi_init+0x75/0x100
[ 10.047082][ T1] do_one_initcall+0x128/0x700
[ 10.047828][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 10.048864][ T1] ? trace_kmalloc+0x2d/0xe0
[ 10.049704][ T1] ? __kmalloc+0x218/0x440
[ 10.050337][ T1] kernel_init_freeable+0x69d/0xca0
[ 10.051075][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.051845][ T1] kernel_init+0x1c/0x2b0
[ 10.052956][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.053716][ T1] ret_from_fork+0x45/0x80
[ 10.054503][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.055226][ T1] ret_from_fork_asm+0x1a/0x30
[ 10.056190][ T1] </TASK>
[ 10.056638][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 10.057903][ T1] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 6.8.0-syzkaller-13213-g70293240c5ce-dirty #0
[ 10.059393][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
[ 10.060851][ T1] Call Trace:
[ 10.061436][ T1] <TASK>
[ 10.061914][ T1] dump_stack_lvl+0x3d/0x1f0
[ 10.062473][ T1] panic+0x6f5/0x7a0
[ 10.062473][ T1] ? __pfx_panic+0x10/0x10
[ 10.062473][ T1] ? show_trace_log_lvl+0x363/0x500
[ 10.062473][ T1] ? check_panic_on_warn+0x1f/0xb0
[ 10.062473][ T1] ? refcount_warn_saturate+0x1ed/0x210
[ 10.062473][ T1] check_panic_on_warn+0xab/0xb0
[ 10.062473][ T1] __warn+0xf1/0x3c0
[ 10.062473][ T1] ? __wake_up_klogd.part.0+0x99/0xf0
[ 10.062473][ T1] ? refcount_warn_saturate+0x1ed/0x210
[ 10.062473][ T1] report_bug+0x3c0/0x580
[ 10.062473][ T1] handle_bug+0x3d/0x70
[ 10.062473][ T1] exc_invalid_op+0x17/0x50
[ 10.062473][ T1] asm_exc_invalid_op+0x1a/0x20
[ 10.062473][ T1] RIP: 0010:refcount_warn_saturate+0x1ed/0x210
[ 10.062473][ T1] Code: 8b e8 97 41 d2 fc 90 0f 0b 90 90 e9 c3 fe ff ff e8 f8 d2 0f fd c6 05 3b 02 4d 0b 01 90 48 c7 c7 80 e3 8e 8b e8 74 41 d2 fc 90 <0f> 0b 90 90 e9 a0 fe ff ff 48 89 ef e8 82 fb 6a fd e9 44 fe ff ff
[ 10.062473][ T1] RSP: 0000:ffffc900000673c0 EFLAGS: 00010286
[ 10.062473][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff814fe149
[ 10.062473][ T1] RDX: ffff888016ec8000 RSI: ffffffff814fe156 RDI: 0000000000000001
[ 10.062473][ T1] RBP: ffff8881482bf6cc R08: 0000000000000001 R09: 0000000000000000
[ 10.062473][ T1] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881482bf6cc
[ 10.062473][ T1] R13: 0000000000000000 R14: 0000000006d600b9 R15: ffff888016898588
[ 10.062473][ T1] ? __warn_printk+0x199/0x350
[ 10.062473][ T1] ? __warn_printk+0x1a6/0x350
[ 10.062473][ T1] __reset_page_owner+0x2ea/0x370
[ 10.062473][ T1] __free_pages_ok+0x5a9/0xbf0
[ 10.062473][ T1] ? __split_page_owner+0xdd/0x120
[ 10.062473][ T1] make_alloc_exact+0x165/0x260
[ 10.062473][ T1] vring_alloc_queue+0xc1/0x110
[ 10.062473][ T1] vring_alloc_queue_split+0x186/0x510
[ 10.062473][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10
[ 10.062473][ T1] ? kasan_save_stack+0x42/0x60
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] vring_create_virtqueue_split+0xe8/0x280
[ 10.062473][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.062473][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10
[ 10.062473][ T1] ? virtio_scsi_init+0x75/0x100
[ 10.062473][ T1] ? do_one_initcall+0x128/0x700
[ 10.062473][ T1] ? kernel_init_freeable+0x69d/0xca0
[ 10.062473][ T1] vring_create_virtqueue+0xd7/0x140
[ 10.062473][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] setup_vq+0x123/0x2f0
[ 10.062473][ T1] ? __pfx_vp_notify+0x10/0x10
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] vp_setup_vq+0xb1/0x380
[ 10.062473][ T1] ? iowrite16+0x55/0x80
[ 10.062473][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10
[ 10.062473][ T1] vp_find_vqs_msix+0x661/0xe30
[ 10.112351][ T1] vp_find_vqs+0x58/0x560
[ 10.112351][ T1] virtscsi_init+0x459/0x9f0
[ 10.112351][ T1] ? __pfx_virtscsi_init+0x10/0x10
[ 10.112351][ T1] ? __pfx_default_calc_sets+0x10/0x10
[ 10.112351][ T1] ? ioread8+0x4e/0xa0
[ 10.112351][ T1] ? vp_get+0xf6/0x140
[ 10.112351][ T1] virtscsi_probe+0x3b2/0xdd0
[ 10.112351][ T1] ? __pfx_virtscsi_probe+0x10/0x10
[ 10.112351][ T1] ? trace_raw_output_sched_pi_setprio+0xad/0x150
[ 10.112351][ T1] ? vring_transport_features+0x49/0xb0
[ 10.112351][ T1] virtio_dev_probe+0x5ff/0x9b0
[ 10.112351][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 10.112351][ T1] really_probe+0x23e/0xa90
[ 10.112351][ T1] __driver_probe_device+0x1de/0x440
[ 10.112351][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 10.112351][ T1] driver_probe_device+0x4c/0x1b0
[ 10.112351][ T1] __driver_attach+0x283/0x580
[ 10.112351][ T1] ? __pfx___driver_attach+0x10/0x10
[ 10.112351][ T1] bus_for_each_dev+0x13c/0x1d0
[ 10.112351][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 10.112351][ T1] bus_add_driver+0x2ed/0x640
[ 10.112351][ T1] driver_register+0x15c/0x4b0
[ 10.112351][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 10.112351][ T1] ? __pfx_virtio_scsi_init+0x10/0x10
[ 10.112351][ T1] virtio_scsi_init+0x75/0x100
[ 10.112351][ T1] do_one_initcall+0x128/0x700
[ 10.112351][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 10.112351][ T1] ? trace_kmalloc+0x2d/0xe0
[ 10.112351][ T1] ? __kmalloc+0x218/0x440
[ 10.112351][ T1] kernel_init_freeable+0x69d/0xca0
[ 10.112351][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.112351][ T1] kernel_init+0x1c/0x2b0
[ 10.112351][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.112351][ T1] ret_from_fork+0x45/0x80
[ 10.112351][ T1] ? __pfx_kernel_init+0x10/0x10
[ 10.112351][ T1] ret_from_fork_asm+0x1a/0x30
[ 10.112351][ T1] </TASK>
[ 10.112351][ T1] Kernel Offset: disabled
[ 10.112351][ 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-build2080839175=/tmp/go-build -gno-record-gcc-switches'
git status (err=<nil>)
HEAD detached at db5b7ff0c
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=db5b7ff0c1508e1f6bc77ba4df578cabb88b9914 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240312-201727'" "-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=db5b7ff0c1508e1f6bc77ba4df578cabb88b9914 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240312-201727'" "-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=db5b7ff0c1508e1f6bc77ba4df578cabb88b9914 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240312-201727'" "-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=\"db5b7ff0c1508e1f6bc77ba4df578cabb88b9914\"
Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=14bff946180000
Tested on:
commit: 70293240 Merge tag 'timers-urgent-2024-03-23' of git:/..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=8f186ceee5fcb0b8
dashboard link: https://syzkaller.appspot.com/bug?extid=d2a2c639d03ac200a4f1
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
patch: https://syzkaller.appspot.com/x/patch.diff?x=153af959180000