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charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: yS0 at I/O 0x3f8 (irq =3D 4, base_baud =3D 115200) is a 16550A [ 9.038219][ T1] 00:04: ttyS1 at I/O 0x2f8 (irq =3D 3, base_baud =3D = 115200) is a 16550A [ 9.057953][ T1] 00:05: ttyS2 at I/O 0x3e8 (irq =3D 6, base_baud =3D = 115200) is a 16550A [ 9.072243][ T1] 00:06: ttyS3 at I/O 0x2e8 (irq =3D 7, base_baud =3D = 115200) is a 16550A [ 9.097318][ T1] Non-volatile memory driver v1.3 [ 9.116138][ T1] Linux agpgart interface v0.103 [ 9.127340][ T1] ACPI: bus type drm_connector registered [ 9.136388][ T1] [drm] Initialized vgem 1.0.0 20120112 for vgem on mi= nor 0 [ 9.148877][ T1] [drm] Initialized vkms 1.0.0 20180514 for vkms on mi= nor 1 [ 9.243029][ T1] Console: switching to colour frame buffer device 128= x48 [ 9.260911][ T1] platform vkms: [drm] fb0: vkmsdrmfb frame buffer dev= ice [ 9.262683][ T1] usbcore: registered new interface driver udl [ 9.362369][ T1] brd: module loaded [ 9.478297][ T1] loop: module loaded [ 9.645631][ T1] zram: Added device: zram0 [ 9.657180][ T1] null_blk: disk nullb0 created [ 9.658224][ T1] null_blk: module loaded [ 9.659262][ T1] Guest personality initialized and is inactive [ 9.661760][ T1] VMCI host device registered (name=3Dvmci, major=3D10= , minor=3D118) [ 9.662919][ T1] Initialized host personality [ 9.664352][ T1] usbcore: registered new interface driver rtsx_usb [ 9.667085][ T1] usbcore: registered new interface driver viperboard [ 9.668967][ T1] usbcore: registered new interface driver dln2 [ 9.670645][ T1] usbcore: registered new interface driver pn533_usb [ 9.678467][ T1] nfcsim 0.2 initialized [ 9.681449][ T1] usbcore: registered new interface driver port100 [ 9.683084][ T1] usbcore: registered new interface driver nfcmrvl [ 9.691418][ T1] Loading iSCSI transport class v2.0-870. [ 9.713074][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 9.725636][ T1] ------------[ cut here ]------------ [ 9.726707][ T1] refcount_t: decrement hit 0; leaking memory. [ 9.728009][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount= _warn_saturate+0x1d7/0x1f0 [ 9.729498][ T1] Modules linked in: [ 9.730156][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-= syzkaller-00080-gc85af715cac0-dirty #0 [ 9.731847][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 03/27/2024 [ 9.734170][ T1] RIP: 0010:refcount_warn_saturate+0x1d7/0x1f0 [ 9.735216][ T1] Code: 05 39 20 fe 0a 01 e8 18 fa 11 fd 0f 0b e9 d7 f= e ff ff e8 8c aa 4f fd 48 c7 c7 40 11 29 8b c6 05 18 20 fe 0a 01 e8 f9 f9 1= 1 fd <0f> 0b e9 b8 fe ff ff 48 89 ef e8 ca 96 a8 fd e9 5c fe ff ff 0f 1f [ 9.738879][ T1] RSP: 0000:ffffc900000673b8 EFLAGS: 00010282 [ 9.740066][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: fff= fffff814fadaa [ 9.741609][ T1] RDX: ffff888017e78000 RSI: ffffffff814fadb7 RDI: 000= 0000000000001 [ 9.744190][ T1] RBP: ffff88801f94beac R08: 0000000000000001 R09: 000= 0000000000000 [ 9.746435][ T1] R10: 0000000000000000 R11: 0000000000000001 R12: fff= f88801f94beac [ 9.748384][ T1] R13: 0000000000000000 R14: 0000000007d200ba R15: fff= f88814051b5c8 [ 9.750792][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000= ) knlGS:0000000000000000 [ 9.752672][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.754415][ T1] CR2: ffff88823ffff000 CR3: 000000000d17a000 CR4: 000= 00000003506f0 [ 9.755796][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000= 0000000000000 [ 9.757015][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 000= 0000000000400 [ 9.758294][ T1] Call Trace: [ 9.758885][ T1] [ 9.760367][ T1] ? show_regs+0x8c/0xa0 [ 9.761843][ T1] ? __warn+0xe5/0x3b0 [ 9.762467][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.763325][ T1] ? report_bug+0x3c0/0x580 [ 9.764121][ T1] ? handle_bug+0x3c/0x70 [ 9.764824][ T1] ? exc_invalid_op+0x17/0x40 [ 9.765648][ T1] ? asm_exc_invalid_op+0x1a/0x20 [ 9.766958][ T1] ? __warn_printk+0x17a/0x310 [ 9.768097][ T1] ? __warn_printk+0x187/0x310 [ 9.769136][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.770546][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.771460][ T1] __reset_page_owner+0x2ea/0x370 [ 9.772227][ T1] __free_pages_ok+0x5aa/0xbb0 [ 9.772998][ T1] ? __split_page_owner+0xdd/0x120 [ 9.774098][ T1] make_alloc_exact+0x165/0x260 [ 9.774925][ T1] vring_alloc_queue+0xc1/0x110 [ 9.775640][ T1] vring_alloc_queue_split.part.0+0x19a/0x4d0 [ 9.776631][ T1] ? __pfx_vring_alloc_queue_split.part.0+0x10/0x10 [ 9.778003][ T1] vring_create_virtqueue_split+0x135/0x300 [ 9.779110][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.780406][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.781306][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 9.782361][ T1] ? driver_register+0x15c/0x4b0 [ 9.783247][ T1] ? virtio_scsi_init+0x75/0x100 [ 9.783971][ T1] ? do_one_initcall+0x113/0x6c0 [ 9.784818][ T1] vring_create_virtqueue+0xd7/0x140 [ 9.785769][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.787208][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.788260][ T1] setup_vq+0x123/0x2f0 [ 9.788878][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.790089][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.791293][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.792374][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.793404][ T1] vp_setup_vq+0xb1/0x380 [ 9.794570][ T1] ? ioread16+0x50/0xc0 [ 9.795458][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.796558][ T1] vp_find_vqs_msix+0x661/0xe30 [ 9.797762][ T1] vp_find_vqs+0x58/0x560 [ 9.798819][ T1] virtscsi_init+0x459/0x9f0 [ 9.799877][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 9.801319][ T1] ? __init_waitqueue_head+0xca/0x150 [ 9.802288][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 9.803271][ T1] ? ioread8+0x4f/0xc0 [ 9.803999][ T1] ? vp_get+0xf6/0x140 [ 9.804908][ T1] virtscsi_probe+0x39b/0xda0 [ 9.805839][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 9.806643][ T1] virtio_dev_probe+0x5fd/0x9b0 [ 9.807771][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 9.808641][ T1] really_probe+0x23e/0xa90 [ 9.809546][ T1] __driver_probe_device+0x1de/0x440 [ 9.810393][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 9.811353][ T1] driver_probe_device+0x4c/0x1b0 [ 9.812164][ T1] __driver_attach+0x283/0x580 [ 9.813013][ T1] ? __pfx___driver_attach+0x10/0x10 [ 9.814078][ T1] bus_for_each_dev+0x12a/0x1c0 [ 9.814957][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 9.815902][ T1] bus_add_driver+0x2ed/0x640 [ 9.816570][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 9.817691][ T1] driver_register+0x15c/0x4b0 [ 9.818894][ T1] virtio_scsi_init+0x75/0x100 [ 9.819993][ T1] do_one_initcall+0x113/0x6c0 [ 9.820861][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 9.822094][ T1] ? parameq+0x150/0x180 [ 9.822808][ T1] ? trace_kmalloc+0x2d/0xd0 [ 9.823806][ T1] ? __kmalloc+0x20f/0x430 [ 9.824660][ T1] kernel_init_freeable+0x5c7/0x900 [ 9.825629][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.826507][ T1] kernel_init+0x1c/0x2b0 [ 9.827258][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.828571][ T1] ret_from_fork+0x45/0x80 [ 9.829390][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.830312][ T1] ret_from_fork_asm+0x1a/0x30 [ 9.831556][ T1] [ 9.832046][ T1] Kernel panic - not syncing: kernel: panic_on_warn se= t ... [ 9.833135][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.9.0-rc2-= syzkaller-00080-gc85af715cac0-dirty #0 [ 9.835063][ T1] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 03/27/2024 [ 9.836779][ T1] Call Trace: [ 9.837873][ T1] [ 9.838456][ T1] dump_stack_lvl+0x3d/0x1f0 [ 9.839689][ T1] panic+0x6d2/0x780 [ 9.840276][ T1] ? __pfx_panic+0x10/0x10 [ 9.840297][ T1] ? show_trace_log_lvl+0x35c/0x510 [ 9.840297][ T1] ? check_panic_on_warn+0x1f/0xb0 [ 9.840297][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.840297][ T1] check_panic_on_warn+0xab/0xb0 [ 9.840297][ T1] __warn+0xf1/0x3b0 [ 9.840297][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.840297][ T1] report_bug+0x3c0/0x580 [ 9.840297][ T1] handle_bug+0x3c/0x70 [ 9.840297][ T1] exc_invalid_op+0x17/0x40 [ 9.840297][ T1] asm_exc_invalid_op+0x1a/0x20 [ 9.840297][ T1] RIP: 0010:refcount_warn_saturate+0x1d7/0x1f0 [ 9.840297][ T1] Code: 05 39 20 fe 0a 01 e8 18 fa 11 fd 0f 0b e9 d7 f= e ff ff e8 8c aa 4f fd 48 c7 c7 40 11 29 8b c6 05 18 20 fe 0a 01 e8 f9 f9 1= 1 fd <0f> 0b e9 b8 fe ff ff 48 89 ef e8 ca 96 a8 fd e9 5c fe ff ff 0f 1f [ 9.840297][ T1] RSP: 0000:ffffc900000673b8 EFLAGS: 00010282 [ 9.840297][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: fff= fffff814fadaa [ 9.840297][ T1] RDX: ffff888017e78000 RSI: ffffffff814fadb7 RDI: 000= 0000000000001 [ 9.840297][ T1] RBP: ffff88801f94beac R08: 0000000000000001 R09: 000= 0000000000000 [ 9.840297][ T1] R10: 0000000000000000 R11: 0000000000000001 R12: fff= f88801f94beac [ 9.840297][ T1] R13: 0000000000000000 R14: 0000000007d200ba R15: fff= f88814051b5c8 [ 9.840297][ T1] ? __warn_printk+0x17a/0x310 [ 9.840297][ T1] ? __warn_printk+0x187/0x310 [ 9.840297][ T1] ? refcount_warn_saturate+0x1d7/0x1f0 [ 9.840297][ T1] __reset_page_owner+0x2ea/0x370 [ 9.840297][ T1] __free_pages_ok+0x5aa/0xbb0 [ 9.840297][ T1] ? __split_page_owner+0xdd/0x120 [ 9.840297][ T1] make_alloc_exact+0x165/0x260 [ 9.840297][ T1] vring_alloc_queue+0xc1/0x110 [ 9.840297][ T1] vring_alloc_queue_split.part.0+0x19a/0x4d0 [ 9.840297][ T1] ? __pfx_vring_alloc_queue_split.part.0+0x10/0x10 [ 9.840297][ T1] vring_create_virtqueue_split+0x135/0x300 [ 9.840297][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.840297][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.840297][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 9.840297][ T1] ? driver_register+0x15c/0x4b0 [ 9.840297][ T1] ? virtio_scsi_init+0x75/0x100 [ 9.840297][ T1] ? do_one_initcall+0x113/0x6c0 [ 9.840297][ T1] vring_create_virtqueue+0xd7/0x140 [ 9.840297][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.840297][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.840297][ T1] setup_vq+0x123/0x2f0 [ 9.840297][ T1] ? __pfx_vp_notify+0x10/0x10 [ 9.840297][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.889816][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.889816][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.889816][ T1] vp_setup_vq+0xb1/0x380 [ 9.889816][ T1] ? ioread16+0x50/0xc0 [ 9.889816][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 9.889816][ T1] vp_find_vqs_msix+0x661/0xe30 [ 9.889816][ T1] vp_find_vqs+0x58/0x560 [ 9.889816][ T1] virtscsi_init+0x459/0x9f0 [ 9.889816][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 9.889816][ T1] ? __init_waitqueue_head+0xca/0x150 [ 9.889816][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 9.889816][ T1] ? ioread8+0x4f/0xc0 [ 9.889816][ T1] ? vp_get+0xf6/0x140 [ 9.889816][ T1] virtscsi_probe+0x39b/0xda0 [ 9.889816][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 9.889816][ T1] virtio_dev_probe+0x5fd/0x9b0 [ 9.889816][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 9.889816][ T1] really_probe+0x23e/0xa90 [ 9.889816][ T1] __driver_probe_device+0x1de/0x440 [ 9.889816][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 9.889816][ T1] driver_probe_device+0x4c/0x1b0 [ 9.889816][ T1] __driver_attach+0x283/0x580 [ 9.889816][ T1] ? __pfx___driver_attach+0x10/0x10 [ 9.889816][ T1] bus_for_each_dev+0x12a/0x1c0 [ 9.889816][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 9.889816][ T1] bus_add_driver+0x2ed/0x640 [ 9.889816][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 9.889816][ T1] driver_register+0x15c/0x4b0 [ 9.889816][ T1] virtio_scsi_init+0x75/0x100 [ 9.889816][ T1] do_one_initcall+0x113/0x6c0 [ 9.889816][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 9.889816][ T1] ? parameq+0x150/0x180 [ 9.889816][ T1] ? trace_kmalloc+0x2d/0xd0 [ 9.889816][ T1] ? __kmalloc+0x20f/0x430 [ 9.889816][ T1] kernel_init_freeable+0x5c7/0x900 [ 9.889816][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.889816][ T1] kernel_init+0x1c/0x2b0 [ 9.889816][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.889816][ T1] ret_from_fork+0x45/0x80 [ 9.889816][ T1] ? __pfx_kernel_init+0x10/0x10 [ 9.889816][ T1] ret_from_fork_asm+0x1a/0x30 [ 9.889816][ T1] [ 9.889816][ T1] Kernel Offset: disabled [ 9.889816][ T1] Rebooting in 86400 seconds.. syzkaller build log: go env (err=3D) GO111MODULE=3D'auto' GOARCH=3D'amd64' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFLAGS=3D'' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMODCACHE=3D'/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.21.4' GCCGO=3D'gccgo' GOAMD64=3D'v1' AR=3D'ar' CC=3D'gcc' CXX=3D'g++' CGO_ENABLED=3D'1' GOMOD=3D'/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mo= d' GOWORK=3D'' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' PKG_CONFIG=3D'pkg-config' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build3177901411=3D/tmp/go-build -gno-record-gc= c-switches' git status (err=3D) HEAD detached at ab32d5088 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:32: run command via tools/syz-env for best compatibility, see: Makefile:33: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sy= s/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dab32d50881df9f96f2af301aadca62ad00b7e099 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20221230-155636'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-fuzzer= github.com/google/syzkaller/syz-fuzzer GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dab32d50881df9f96f2af301aadca62ad00b7e099 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20221230-155636'" "-tags= =3Dsyz_target syz_os_linux syz_arch_amd64 " -o ./bin/linux_amd64/syz-execpr= og github.com/google/syzkaller/tools/syz-execprog GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dab32d50881df9f96f2af301aadca62ad00b7e099 -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20221230-155636'" "-tags= =3Dsyz_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 -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -static-pie -fpermissive -w -DGOOS_linux=3D1 -DGOARCH_amd64=3D1 = \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"ab32d50881df9f96f2af301aadca62ad00= b7e099\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D1216333d180000 Tested on: commit: c85af715 Merge tag 'vboxsf-v6.9-1' of git://git.kernel.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li= nux.git master kernel config: https://syzkaller.appspot.com/x/.config?x=3D3583c441956deae= c dashboard link: https://syzkaller.appspot.com/bug?extid=3D0ae4804973be759fa= 420 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Deb= ian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D158448de1800= 00