Hello, syzbot tried to test the proposed patch but the build/boot failed: viperboard [ 7.815991][ T1] usbcore: registered new interface driver dln2 [ 7.818221][ T1] usbcore: registered new interface driver pn533_usb [ 7.823865][ T1] nfcsim 0.2 initialized [ 7.825314][ T1] usbcore: registered new interface driver port100 [ 7.828562][ T1] usbcore: registered new interface driver nfcmrvl [ 7.837679][ T1] Loading iSCSI transport class v2.0-870. [ 7.856316][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 7.867881][ T1] ------------[ cut here ]------------ [ 7.869240][ T1] refcount_t: decrement hit 0; leaking memory. [ 7.870647][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 [ 7.872673][ T1] Modules linked in: [ 7.873450][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc3-syzkaller-00222-ga4170c0055a4 #0 [ 7.875073][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 7.876781][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 [ 7.877963][ T1] Code: b2 00 00 00 e8 e7 63 e7 fc 5b 5d c3 cc cc cc cc e8 db 63 e7 fc c6 05 6c d2 e4 0a 01 90 48 c7 c7 c0 30 1f 8c e8 77 e1 a9 fc 90 <0f> 0b 90 90 eb d9 e8 bb 63 e7 fc c6 05 49 d2 e4 0a 01 90 48 c7 c7 [ 7.881853][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246 [ 7.883056][ T1] RAX: 7664671302135400 RBX: ffff8880202afc6c RCX: ffff8880166d0000 [ 7.885276][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.887369][ T1] RBP: 0000000000000004 R08: ffffffff815880a2 R09: fffffbfff1c39b48 [ 7.888750][ T1] R10: dffffc0000000000 R11: fffffbfff1c39b48 R12: ffffea000502ddc0 [ 7.890131][ T1] R13: ffffea000502ddc8 R14: 1ffffd4000a05bb9 R15: 0000000000000000 [ 7.891813][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 7.893900][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.895917][ T1] CR2: ffff88823ffff000 CR3: 000000000e134000 CR4: 00000000003506f0 [ 7.897448][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 7.898766][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 7.900462][ T1] Call Trace: [ 7.901245][ T1] <TASK> [ 7.901998][ T1] ? __warn+0x163/0x4e0 [ 7.902783][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.904160][ T1] ? report_bug+0x2b3/0x500 [ 7.905119][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.906474][ T1] ? handle_bug+0x3e/0x70 [ 7.907513][ T1] ? exc_invalid_op+0x1a/0x50 [ 7.908463][ T1] ? asm_exc_invalid_op+0x1a/0x20 [ 7.909468][ T1] ? __warn_printk+0x292/0x360 [ 7.910957][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.912558][ T1] ? refcount_warn_saturate+0xf9/0x1d0 [ 7.913803][ T1] __free_pages_ok+0xc60/0xd90 [ 7.914583][ T1] make_alloc_exact+0xa3/0xf0 [ 7.915425][ T1] vring_alloc_queue_split+0x20a/0x600 [ 7.916903][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10 [ 7.917937][ T1] ? vp_find_vqs+0x4c/0x4e0 [ 7.918930][ T1] ? virtscsi_probe+0x3ea/0xf60 [ 7.919998][ T1] ? virtio_dev_probe+0x991/0xaf0 [ 7.921234][ T1] ? really_probe+0x2b8/0xad0 [ 7.921893][ T1] ? driver_probe_device+0x50/0x430 [ 7.922882][ T1] vring_create_virtqueue_split+0xc6/0x310 [ 7.924087][ T1] ? ret_from_fork+0x4b/0x80 [ 7.924906][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 7.926406][ T1] vring_create_virtqueue+0xca/0x110 [ 7.927871][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.929037][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.929986][ T1] setup_vq+0xe9/0x2d0 [ 7.930782][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.931882][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.932643][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.933619][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.934781][ T1] vp_setup_vq+0xbf/0x330 [ 7.935911][ T1] ? __pfx_vp_config_changed+0x10/0x10 [ 7.937334][ T1] ? ioread16+0x2f/0x90 [ 7.938489][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.939978][ T1] vp_find_vqs_msix+0x8b2/0xc80 [ 7.940989][ T1] vp_find_vqs+0x4c/0x4e0 [ 7.941655][ T1] virtscsi_init+0x8db/0xd00 [ 7.942427][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 7.943724][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 7.944616][ T1] ? scsi_host_alloc+0xa57/0xea0 [ 7.946041][ T1] ? vp_get+0xfd/0x140 [ 7.946895][ T1] virtscsi_probe+0x3ea/0xf60 [ 7.947740][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 7.948718][ T1] ? kernfs_add_one+0x156/0x8b0 [ 7.949578][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10 [ 7.950761][ T1] ? virtio_features_ok+0x10c/0x270 [ 7.951946][ T1] virtio_dev_probe+0x991/0xaf0 [ 7.953286][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 7.954435][ T1] really_probe+0x2b8/0xad0 [ 7.955311][ T1] __driver_probe_device+0x1a2/0x390 [ 7.956686][ T1] driver_probe_device+0x50/0x430 [ 7.957771][ T1] __driver_attach+0x45f/0x710 [ 7.958769][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.959612][ T1] bus_for_each_dev+0x239/0x2b0 [ 7.960946][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.962251][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 7.964315][ T1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 7.966148][ T1] bus_add_driver+0x347/0x620 [ 7.967112][ T1] driver_register+0x23a/0x320 [ 7.968628][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.969941][ T1] virtio_scsi_init+0x65/0xe0 [ 7.970833][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.972203][ T1] do_one_initcall+0x248/0x880 [ 7.973355][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.974515][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.975602][ T1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 7.977269][ T1] ? __pfx_parse_args+0x10/0x10 [ 7.978148][ T1] ? do_initcalls+0x1c/0x80 [ 7.979254][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.980350][ T1] do_initcall_level+0x157/0x210 [ 7.981349][ T1] do_initcalls+0x3f/0x80 [ 7.982742][ T1] kernel_init_freeable+0x435/0x5d0 [ 7.984461][ T1] ? __pfx_kernel_init_freeable+0x10/0x10 [ 7.986325][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 7.987513][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.988803][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.990065][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.991335][ T1] kernel_init+0x1d/0x2b0 [ 7.992855][ T1] ret_from_fork+0x4b/0x80 [ 7.994528][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.996074][ T1] ret_from_fork_asm+0x1a/0x30 [ 7.997423][ T1] </TASK> [ 7.998234][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.999604][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc3-syzkaller-00222-ga4170c0055a4 #0 [ 8.001827][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 8.004098][ T1] Call Trace: [ 8.005064][ T1] <TASK> [ 8.005501][ T1] dump_stack_lvl+0x241/0x360 [ 8.006050][ T1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 8.006050][ T1] ? __pfx__printk+0x10/0x10 [ 8.006050][ T1] ? _printk+0xd5/0x120 [ 8.006050][ T1] ? vscnprintf+0x5d/0x90 [ 8.006050][ T1] panic+0x349/0x860 [ 8.006050][ T1] ? __warn+0x172/0x4e0 [ 8.006050][ T1] ? __pfx_panic+0x10/0x10 [ 8.006050][ T1] ? show_trace_log_lvl+0x4e6/0x520 [ 8.006050][ T1] ? ret_from_fork_asm+0x1a/0x30 [ 8.006050][ T1] __warn+0x346/0x4e0 [ 8.006050][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 8.006050][ T1] report_bug+0x2b3/0x500 [ 8.006050][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 8.006050][ T1] handle_bug+0x3e/0x70 [ 8.006050][ T1] exc_invalid_op+0x1a/0x50 [ 8.006050][ T1] asm_exc_invalid_op+0x1a/0x20 [ 8.006050][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 [ 8.006050][ T1] Code: b2 00 00 00 e8 e7 63 e7 fc 5b 5d c3 cc cc cc cc e8 db 63 e7 fc c6 05 6c d2 e4 0a 01 90 48 c7 c7 c0 30 1f 8c e8 77 e1 a9 fc 90 <0f> 0b 90 90 eb d9 e8 bb 63 e7 fc c6 05 49 d2 e4 0a 01 90 48 c7 c7 [ 8.006050][ T1] RSP: 0000:ffffc90000066e18 EFLAGS: 00010246 [ 8.006050][ T1] RAX: 7664671302135400 RBX: ffff8880202afc6c RCX: ffff8880166d0000 [ 8.006050][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 8.006050][ T1] RBP: 0000000000000004 R08: ffffffff815880a2 R09: fffffbfff1c39b48 [ 8.006050][ T1] R10: dffffc0000000000 R11: fffffbfff1c39b48 R12: ffffea000502ddc0 [ 8.006050][ T1] R13: ffffea000502ddc8 R14: 1ffffd4000a05bb9 R15: 0000000000000000 [ 8.006050][ T1] ? __warn_printk+0x292/0x360 [ 8.006050][ T1] ? refcount_warn_saturate+0xf9/0x1d0 [ 8.006050][ T1] __free_pages_ok+0xc60/0xd90 [ 8.006050][ T1] make_alloc_exact+0xa3/0xf0 [ 8.006050][ T1] vring_alloc_queue_split+0x20a/0x600 [ 8.006050][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10 [ 8.006050][ T1] ? vp_find_vqs+0x4c/0x4e0 [ 8.006050][ T1] ? virtscsi_probe+0x3ea/0xf60 [ 8.006050][ T1] ? virtio_dev_probe+0x991/0xaf0 [ 8.006050][ T1] ? really_probe+0x2b8/0xad0 [ 8.006050][ T1] ? driver_probe_device+0x50/0x430 [ 8.006050][ T1] vring_create_virtqueue_split+0xc6/0x310 [ 8.006050][ T1] ? ret_from_fork+0x4b/0x80 [ 8.055954][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 8.055954][ T1] vring_create_virtqueue+0xca/0x110 [ 8.055954][ T1] ? __pfx_vp_notify+0x10/0x10 [ 8.055954][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 8.055954][ T1] setup_vq+0xe9/0x2d0 [ 8.055954][ T1] ? __pfx_vp_notify+0x10/0x10 [ 8.055954][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 8.055954][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 8.055954][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 8.055954][ T1] vp_setup_vq+0xbf/0x330 [ 8.055954][ T1] ? __pfx_vp_config_changed+0x10/0x10 [ 8.055954][ T1] ? ioread16+0x2f/0x90 [ 8.055954][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 8.055954][ T1] vp_find_vqs_msix+0x8b2/0xc80 [ 8.055954][ T1] vp_find_vqs+0x4c/0x4e0 [ 8.055954][ T1] virtscsi_init+0x8db/0xd00 [ 8.055954][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 8.055954][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 8.055954][ T1] ? scsi_host_alloc+0xa57/0xea0 [ 8.055954][ T1] ? vp_get+0xfd/0x140 [ 8.055954][ T1] virtscsi_probe+0x3ea/0xf60 [ 8.055954][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 8.055954][ T1] ? kernfs_add_one+0x156/0x8b0 [ 8.055954][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10 [ 8.055954][ T1] ? virtio_features_ok+0x10c/0x270 [ 8.055954][ T1] virtio_dev_probe+0x991/0xaf0 [ 8.055954][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 8.055954][ T1] really_probe+0x2b8/0xad0 [ 8.055954][ T1] __driver_probe_device+0x1a2/0x390 [ 8.055954][ T1] driver_probe_device+0x50/0x430 [ 8.055954][ T1] __driver_attach+0x45f/0x710 [ 8.055954][ T1] ? __pfx___driver_attach+0x10/0x10 [ 8.055954][ T1] bus_for_each_dev+0x239/0x2b0 [ 8.055954][ T1] ? __pfx___driver_attach+0x10/0x10 [ 8.055954][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 8.055954][ T1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 8.055954][ T1] bus_add_driver+0x347/0x620 [ 8.055954][ T1] driver_register+0x23a/0x320 [ 8.055954][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 8.055954][ T1] virtio_scsi_init+0x65/0xe0 [ 8.055954][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 8.055954][ T1] do_one_initcall+0x248/0x880 [ 8.055954][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 8.055954][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 8.105903][ T1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 8.105903][ T1] ? __pfx_parse_args+0x10/0x10 [ 8.105903][ T1] ? do_initcalls+0x1c/0x80 [ 8.105903][ T1] ? rcu_is_watching+0x15/0xb0 [ 8.105903][ T1] do_initcall_level+0x157/0x210 [ 8.105903][ T1] do_initcalls+0x3f/0x80 [ 8.105903][ T1] kernel_init_freeable+0x435/0x5d0 [ 8.105903][ T1] ? __pfx_kernel_init_freeable+0x10/0x10 [ 8.105903][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 8.105903][ T1] ? __pfx_kernel_init+0x10/0x10 [ 8.105903][ T1] ? __pfx_kernel_init+0x10/0x10 [ 8.105903][ T1] ? __pfx_kernel_init+0x10/0x10 [ 8.105903][ T1] kernel_init+0x1d/0x2b0 [ 8.105903][ T1] ret_from_fork+0x4b/0x80 [ 8.105903][ T1] ? __pfx_kernel_init+0x10/0x10 [ 8.105903][ T1] ret_from_fork_asm+0x1a/0x30 [ 8.105903][ T1] </TASK> [ 8.105903][ T1] Kernel Offset: disabled [ 8.105903][ 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-build1668308411=/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=122f8f97180000 Tested on: commit: a4170c00 fsnotify: do not handle events on a shutting .. git tree: https://github.com/amir73il/linux fsnotify-fixes kernel config: https://syzkaller.appspot.com/x/.config?x=9995779c8305f57e dashboard link: https://syzkaller.appspot.com/bug?extid=5e3f9b2a67b45f16d4e6 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied.
