Hello, syzbot tried to test the proposed patch but the build/boot failed: bcore: registered new interface driver viperboard [ 7.297712][ T1] usbcore: registered new interface driver dln2 [ 7.299149][ T1] usbcore: registered new interface driver pn533_usb [ 7.304759][ T924] kworker/u4:1 (924) used greatest stack depth: 22768 bytes left [ 7.308971][ T1] nfcsim 0.2 initialized [ 7.310068][ T1] usbcore: registered new interface driver port100 [ 7.311312][ T1] usbcore: registered new interface driver nfcmrvl [ 7.318405][ T1] Loading iSCSI transport class v2.0-870. [ 7.334687][ T1] virtio_scsi virtio0: 1/0/0 default/read/poll queues [ 7.344927][ T1] ------------[ cut here ]------------ [ 7.345739][ T1] refcount_t: decrement hit 0; leaking memory. [ 7.346982][ T1] WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0xfa/0x1d0 [ 7.348761][ T1] Modules linked in: [ 7.349418][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc5-syzkaller-00257-g217b2119b9e2 #0 [ 7.351070][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 7.352824][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 [ 7.353979][ T1] Code: b2 00 00 00 e8 97 2d fc fc 5b 5d c3 cc cc cc cc e8 8b 2d fc fc c6 05 0d d9 d6 0a 01 90 48 c7 c7 a0 46 fd 8b e8 e7 2c c0 fc 90 <0f> 0b 90 90 eb d9 e8 6b 2d fc fc c6 05 ea d8 d6 0a 01 90 48 c7 c7 [ 7.358181][ T1] RSP: 0000:ffffc90000066e10 EFLAGS: 00010246 [ 7.360206][ T1] RAX: 67b097fa09053300 RBX: ffff88814073377c RCX: ffff8880166c0000 [ 7.362234][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.363496][ T1] RBP: 0000000000000004 R08: ffffffff81589d62 R09: 1ffff9200000cd14 [ 7.365139][ T1] R10: dffffc0000000000 R11: fffff5200000cd15 R12: ffffea000501edc0 [ 7.366612][ T1] R13: ffffea000501edc8 R14: 1ffffd4000a03db9 R15: 0000000000000000 [ 7.368171][ T1] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 7.370111][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.371030][ T1] CR2: ffff88823ffff000 CR3: 000000000df34000 CR4: 00000000003506f0 [ 7.372121][ T1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 7.373506][ T1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 7.374889][ T1] Call Trace: [ 7.375371][ T1] <TASK> [ 7.375798][ T1] ? __warn+0x162/0x4b0 [ 7.376442][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.377482][ T1] ? report_bug+0x2b3/0x500 [ 7.378161][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.379268][ T1] ? handle_bug+0x3e/0x70 [ 7.379887][ T1] ? exc_invalid_op+0x1a/0x50 [ 7.380563][ T1] ? asm_exc_invalid_op+0x1a/0x20 [ 7.381253][ T1] ? __warn_printk+0x292/0x360 [ 7.381912][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.382752][ T1] __free_pages_ok+0xc36/0xd60 [ 7.384180][ T1] make_alloc_exact+0xc4/0x140 [ 7.385037][ T1] vring_alloc_queue_split+0x20a/0x600 [ 7.386037][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10 [ 7.387029][ T1] ? vp_find_vqs+0x4c/0x4e0 [ 7.387719][ T1] ? virtscsi_probe+0x3ea/0xf60 [ 7.388408][ T1] ? virtio_dev_probe+0x991/0xaf0 [ 7.389665][ T1] ? really_probe+0x29e/0xc50 [ 7.390429][ T1] ? driver_probe_device+0x50/0x430 [ 7.391176][ T1] vring_create_virtqueue_split+0xc6/0x310 [ 7.392014][ T1] ? ret_from_fork+0x4b/0x80 [ 7.392800][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 7.394115][ T1] vring_create_virtqueue+0xca/0x110 [ 7.395151][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.395888][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.396674][ T1] setup_vq+0xe9/0x2d0 [ 7.397283][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.397938][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.398806][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.399938][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.400951][ T1] vp_setup_vq+0xbf/0x330 [ 7.401889][ T1] ? __pfx_vp_config_changed+0x10/0x10 [ 7.403092][ T1] ? ioread16+0x2f/0x90 [ 7.403909][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.405136][ T1] vp_find_vqs_msix+0x8b2/0xc80 [ 7.405892][ T1] vp_find_vqs+0x4c/0x4e0 [ 7.406823][ T1] virtscsi_init+0x8db/0xd00 [ 7.407669][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 7.408413][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 7.409369][ T1] ? scsi_host_alloc+0xa57/0xea0 [ 7.410333][ T1] ? vp_get+0xfd/0x140 [ 7.410899][ T1] virtscsi_probe+0x3ea/0xf60 [ 7.411673][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 7.412520][ T1] ? kernfs_add_one+0x159/0x8b0 [ 7.413222][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10 [ 7.414081][ T1] ? virtio_features_ok+0x10c/0x270 [ 7.414875][ T1] virtio_dev_probe+0x991/0xaf0 [ 7.415574][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 7.416501][ T1] really_probe+0x29e/0xc50 [ 7.417330][ T1] __driver_probe_device+0x1a2/0x3e0 [ 7.418134][ T1] driver_probe_device+0x50/0x430 [ 7.418922][ T1] __driver_attach+0x45f/0x710 [ 7.419731][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.420653][ T1] bus_for_each_dev+0x239/0x2b0 [ 7.421541][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.422345][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 7.423094][ T1] ? do_raw_spin_unlock+0x13b/0x8b0 [ 7.423964][ T1] bus_add_driver+0x347/0x620 [ 7.424702][ T1] driver_register+0x23a/0x320 [ 7.425353][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.426126][ T1] virtio_scsi_init+0x65/0xe0 [ 7.426855][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.427617][ T1] do_one_initcall+0x238/0x830 [ 7.428285][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.429095][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.430084][ T1] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 7.431238][ T1] ? __pfx_parse_args+0x10/0x10 [ 7.431953][ T1] ? do_initcalls+0x1c/0x80 [ 7.432616][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.433413][ T1] do_initcall_level+0x157/0x210 [ 7.434175][ T1] do_initcalls+0x3f/0x80 [ 7.434918][ T1] kernel_init_freeable+0x42f/0x5d0 [ 7.435664][ T1] ? __pfx_kernel_init_freeable+0x10/0x10 [ 7.436745][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 7.437747][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.438487][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.439268][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.439947][ T1] kernel_init+0x1d/0x2b0 [ 7.440600][ T1] ret_from_fork+0x4b/0x80 [ 7.441572][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.442531][ T1] ret_from_fork_asm+0x1b/0x30 [ 7.443322][ T1] </TASK> [ 7.443865][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 7.444976][ T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.8.0-rc5-syzkaller-00257-g217b2119b9e2 #0 [ 7.446451][ T1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 7.447782][ T1] Call Trace: [ 7.448300][ T1] <TASK> [ 7.448752][ T1] dump_stack_lvl+0x1e7/0x2e0 [ 7.449206][ T1] ? __pfx_dump_stack_lvl+0x10/0x10 [ 7.449206][ T1] ? __pfx__printk+0x10/0x10 [ 7.449206][ T1] ? _printk+0xd5/0x120 [ 7.449206][ T1] ? vscnprintf+0x5d/0x90 [ 7.449206][ T1] panic+0x349/0x860 [ 7.449206][ T1] ? __warn+0x171/0x4b0 [ 7.449206][ T1] ? __pfx_panic+0x10/0x10 [ 7.449206][ T1] ? show_trace_log_lvl+0x4e4/0x520 [ 7.449206][ T1] ? ret_from_fork_asm+0x1b/0x30 [ 7.449206][ T1] __warn+0x31c/0x4b0 [ 7.449206][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.449206][ T1] report_bug+0x2b3/0x500 [ 7.449206][ T1] ? refcount_warn_saturate+0xfa/0x1d0 [ 7.458645][ T1] handle_bug+0x3e/0x70 [ 7.458645][ T1] exc_invalid_op+0x1a/0x50 [ 7.458645][ T1] asm_exc_invalid_op+0x1a/0x20 [ 7.458645][ T1] RIP: 0010:refcount_warn_saturate+0xfa/0x1d0 [ 7.458645][ T1] Code: b2 00 00 00 e8 97 2d fc fc 5b 5d c3 cc cc cc cc e8 8b 2d fc fc c6 05 0d d9 d6 0a 01 90 48 c7 c7 a0 46 fd 8b e8 e7 2c c0 fc 90 <0f> 0b 90 90 eb d9 e8 6b 2d fc fc c6 05 ea d8 d6 0a 01 90 48 c7 c7 [ 7.458645][ T1] RSP: 0000:ffffc90000066e10 EFLAGS: 00010246 [ 7.458645][ T1] RAX: 67b097fa09053300 RBX: ffff88814073377c RCX: ffff8880166c0000 [ 7.458645][ T1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 7.468739][ T1] RBP: 0000000000000004 R08: ffffffff81589d62 R09: 1ffff9200000cd14 [ 7.468739][ T1] R10: dffffc0000000000 R11: fffff5200000cd15 R12: ffffea000501edc0 [ 7.468739][ T1] R13: ffffea000501edc8 R14: 1ffffd4000a03db9 R15: 0000000000000000 [ 7.468739][ T1] ? __warn_printk+0x292/0x360 [ 7.468739][ T1] __free_pages_ok+0xc36/0xd60 [ 7.468739][ T1] make_alloc_exact+0xc4/0x140 [ 7.468739][ T1] vring_alloc_queue_split+0x20a/0x600 [ 7.468739][ T1] ? __pfx_vring_alloc_queue_split+0x10/0x10 [ 7.468739][ T1] ? vp_find_vqs+0x4c/0x4e0 [ 7.468739][ T1] ? virtscsi_probe+0x3ea/0xf60 [ 7.478647][ T1] ? virtio_dev_probe+0x991/0xaf0 [ 7.478647][ T1] ? really_probe+0x29e/0xc50 [ 7.478647][ T1] ? driver_probe_device+0x50/0x430 [ 7.478647][ T1] vring_create_virtqueue_split+0xc6/0x310 [ 7.478647][ T1] ? ret_from_fork+0x4b/0x80 [ 7.478647][ T1] ? __pfx_vring_create_virtqueue_split+0x10/0x10 [ 7.478647][ T1] vring_create_virtqueue+0xca/0x110 [ 7.478647][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.478647][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.478647][ T1] setup_vq+0xe9/0x2d0 [ 7.478647][ T1] ? __pfx_vp_notify+0x10/0x10 [ 7.478647][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.488714][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.488714][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.488714][ T1] vp_setup_vq+0xbf/0x330 [ 7.488714][ T1] ? __pfx_vp_config_changed+0x10/0x10 [ 7.488714][ T1] ? ioread16+0x2f/0x90 [ 7.488714][ T1] ? __pfx_virtscsi_ctrl_done+0x10/0x10 [ 7.488714][ T1] vp_find_vqs_msix+0x8b2/0xc80 [ 7.488714][ T1] vp_find_vqs+0x4c/0x4e0 [ 7.488714][ T1] virtscsi_init+0x8db/0xd00 [ 7.488714][ T1] ? __pfx_virtscsi_init+0x10/0x10 [ 7.488714][ T1] ? __pfx_default_calc_sets+0x10/0x10 [ 7.498614][ T1] ? scsi_host_alloc+0xa57/0xea0 [ 7.498614][ T1] ? vp_get+0xfd/0x140 [ 7.498614][ T1] virtscsi_probe+0x3ea/0xf60 [ 7.498614][ T1] ? __pfx_virtscsi_probe+0x10/0x10 [ 7.498614][ T1] ? kernfs_add_one+0x159/0x8b0 [ 7.498614][ T1] ? virtio_no_restricted_mem_acc+0x9/0x10 [ 7.498614][ T1] ? virtio_features_ok+0x10c/0x270 [ 7.498614][ T1] virtio_dev_probe+0x991/0xaf0 [ 7.498614][ T1] ? __pfx_virtio_dev_probe+0x10/0x10 [ 7.498614][ T1] really_probe+0x29e/0xc50 [ 7.498614][ T1] __driver_probe_device+0x1a2/0x3e0 [ 7.508689][ T1] driver_probe_device+0x50/0x430 [ 7.508689][ T1] __driver_attach+0x45f/0x710 [ 7.508689][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.508689][ T1] bus_for_each_dev+0x239/0x2b0 [ 7.508689][ T1] ? __pfx___driver_attach+0x10/0x10 [ 7.508689][ T1] ? __pfx_bus_for_each_dev+0x10/0x10 [ 7.508689][ T1] ? do_raw_spin_unlock+0x13b/0x8b0 [ 7.508689][ T1] bus_add_driver+0x347/0x620 [ 7.508689][ T1] driver_register+0x23a/0x320 [ 7.508689][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.508689][ T1] virtio_scsi_init+0x65/0xe0 [ 7.518645][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.518645][ T1] do_one_initcall+0x238/0x830 [ 7.518645][ T1] ? __pfx_virtio_scsi_init+0x10/0x10 [ 7.518645][ T1] ? __pfx_do_one_initcall+0x10/0x10 [ 7.518645][ T1] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 7.518645][ T1] ? __pfx_parse_args+0x10/0x10 [ 7.518645][ T1] ? do_initcalls+0x1c/0x80 [ 7.518645][ T1] ? rcu_is_watching+0x15/0xb0 [ 7.518645][ T1] do_initcall_level+0x157/0x210 [ 7.518645][ T1] do_initcalls+0x3f/0x80 [ 7.518645][ T1] kernel_init_freeable+0x42f/0x5d0 [ 7.528806][ T1] ? __pfx_kernel_init_freeable+0x10/0x10 [ 7.528806][ T1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 7.528806][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.528806][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.528806][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.528806][ T1] kernel_init+0x1d/0x2b0 [ 7.528806][ T1] ret_from_fork+0x4b/0x80 [ 7.528806][ T1] ? __pfx_kernel_init+0x10/0x10 [ 7.528806][ T1] ret_from_fork_asm+0x1b/0x30 [ 7.528806][ T1] </TASK> [ 7.528806][ T1] Kernel Offset: disabled [ 7.528806][ 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-build2530895313=/tmp/go-build -gno-record-gcc-switches' git status (err=<nil>) HEAD detached at 6753db5cd 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=6753db5cdc04330ec9d1a5116b890c19481d69b3 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240320-145051'" "-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=6753db5cdc04330ec9d1a5116b890c19481d69b3 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240320-145051'" "-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=6753db5cdc04330ec9d1a5116b890c19481d69b3 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240320-145051'" "-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=\"6753db5cdc04330ec9d1a5116b890c19481d69b3\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=1254e231180000 Tested on: commit: 217b2119 mm,page_owner: implement the tracking of the .. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git kernel config: https://syzkaller.appspot.com/x/.config?x=527195e149aa3091 dashboard link: https://syzkaller.appspot.com/bug?extid=70f57d8a3ae84934c003 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied.
