Hello, syzbot tried to test the proposed patch but the build/boot failed: ][ T1] mpls_gso: MPLS GSO support [ 46.495161][ T1] IPI shorthand broadcast: enabled [ 47.945988][ T1] sched_clock: Marking stable (47900060195, 37888241)->(47941283984, -3335548) [ 48.918291][ T1] Timer migration: 1 hierarchy levels; 8 children per group; 0 crossnode level [ 49.239698][ T1] registered taskstats version 1 [ 49.313566][ T1] Loading compiled-in X.509 certificates [ 49.357054][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: 02861f0ad196e4ccf5027727c19e24903aa3308e' [ 49.597875][ T1] zswap: loaded using pool lzo/zsmalloc [ 49.611087][ T1] Demotion targets for Node 0: null [ 49.616536][ T1] Demotion targets for Node 1: null [ 49.623550][ T1] Key type .fscrypt registered [ 49.629834][ T1] Key type fscrypt-provisioning registered [ 49.637187][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 49.668354][ T1] Btrfs loaded, assert=on, ref-verify=on, zoned=yes, fsverity=yes [ 49.695115][ T1] Key type encrypted registered [ 49.700255][ T1] AppArmor: AppArmor sha256 policy hashing enabled [ 49.707007][ T1] ima: No TPM chip found, activating TPM-bypass! [ 49.714081][ T1] Loading compiled-in module X.509 certificates [ 49.754830][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: 02861f0ad196e4ccf5027727c19e24903aa3308e' [ 49.768389][ T1] ima: Allocated hash algorithm: sha256 [ 49.774425][ T1] ima: No architecture policies found [ 49.780963][ T1] evm: Initialising EVM extended attributes: [ 49.787003][ T1] evm: security.selinux (disabled) [ 49.792239][ T1] evm: security.SMACK64 (disabled) [ 49.797413][ T1] evm: security.SMACK64EXEC (disabled) [ 49.802981][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 49.809016][ T1] evm: security.SMACK64MMAP (disabled) [ 49.814639][ T1] evm: security.apparmor [ 49.819013][ T1] evm: security.ima [ 49.823162][ T1] evm: security.capability [ 49.827628][ T1] evm: HMAC attrs: 0x1 [ 49.836741][ T1] PM: Magic number: 12:902:765 [ 49.843812][ T1] tty ptyp1: hash matches [ 49.849855][ T1] printk: legacy console [netcon0] enabled [ 49.855889][ T1] netconsole: network logging started [ 49.863365][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 49.872448][ T1] rdma_rxe: loaded [ 49.878540][ T1] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 49.899504][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 49.917084][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 49.925983][ T1] clk: Disabling unused clocks [ 49.931082][ T1] ALSA device list: [ 49.934975][ T1] #0: Dummy 1 [ 49.938653][ T1] #1: Loopback 1 [ 49.942572][ T1] #2: Virtual MIDI Card 1 [ 49.953506][ T1] md: Waiting for all devices to be available before autodetect [ 49.953939][ T780] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2 [ 49.961362][ T1] md: If you don't use raid, use raid=noautodetect [ 49.961430][ T1] md: Autodetecting RAID arrays. [ 49.961470][ T1] md: autorun ... [ 49.961510][ T1] md: ... autorun DONE. [ 49.971152][ T780] platform regulatory.0: Falling back to sysfs fallback for: regulatory.db [ 50.054771][ T1] EXT4-fs (sda1): mounted filesystem 5941fea2-f5fa-4b4e-b5ef-9af118b27b95 ro with ordered data mode. Quota mode: none. [ 50.068782][ T1] VFS: Mounted root (ext4 filesystem) readonly on device 8:1. [ 50.080603][ T1] devtmpfs: mounted [ 50.343600][ T1] Freeing unused kernel image (initmem) memory: 36920K [ 50.355761][ T1] Write protecting the kernel read-only data: 260096k [ 50.404101][ T1] Freeing unused kernel image (rodata/data gap) memory: 1876K [ 52.057623][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 52.067985][ T1] x86/mm: Checking user space page tables [ 53.575965][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 53.585097][ T1] Failed to set sysctl parameter 'kernel.hung_task_all_cpu_backtrace=1': parameter not found [ 53.606359][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_panic=1': parameter not found [ 53.618619][ T1] Run /sbin/init as init process [ 55.234149][ T4444] mount (4444) used greatest stack depth: 8144 bytes left [ 55.320581][ T4445] EXT4-fs (sda1): re-mounted 5941fea2-f5fa-4b4e-b5ef-9af118b27b95 r/w. Quota mode: none. mount: mounting smackfs on /sys/fs/smackfs failed: No such file or directory mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or directory [ 55.667884][ T4449] modprobe (4449) used greatest stack depth: 8080 bytes left [ 55.689620][ T4448] mount (4448) used greatest stack depth: 5568 bytes left Starting syslogd: OK Starting acpid: OK Starting klogd: OK Running sysctl: OK Populating /dev using udev: [ 59.547215][ T4478] udevd[4478]: starting version 3.2.11 [ 63.118863][ T4480] udevd[4480]: starting eudev-3.2.11 [ 63.131754][ T4478] udevd (4478) used greatest stack depth: 5216 bytes left done Starting system message bus: done Starting iptables: OK Starting network: OK Starting dhcpcd... dhcpcd-9.4.1 starting dev: loaded udev DUID 00:04:98:24:4c:28:99:7c:d9:70:fe:51:ca:fe:56:33:2c:7d forked to background, child pid 4692 [ 110.662197][ T4693] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.687472][ T4693] eql: remember to turn off Van-Jacobson compression on your slave devices [ 111.699849][ T780] cfg80211: failed to load regulatory.db Starting sshd: OK syzkaller syzkaller login: [ 113.995752][ C0] ===================================================== [ 114.003140][ C0] BUG: KMSAN: uninit-value in receive_buf+0x25e3/0x5fd0 [ 114.010578][ C0] receive_buf+0x25e3/0x5fd0 [ 114.015335][ C0] virtnet_poll+0xd1c/0x23c0 [ 114.020289][ C0] __napi_poll+0xe7/0x980 [ 114.024799][ C0] net_rx_action+0x82a/0x1850 [ 114.029799][ C0] handle_softirqs+0x1ce/0x800 [ 114.034808][ C0] __irq_exit_rcu+0x68/0x120 [ 114.039610][ C0] irq_exit_rcu+0x12/0x20 [ 114.044101][ C0] common_interrupt+0x94/0xa0 [ 114.048999][ C0] asm_common_interrupt+0x2b/0x40 [ 114.054181][ C0] acpi_safe_halt+0x25/0x30 [ 114.058877][ C0] acpi_idle_do_entry+0x22/0x40 [ 114.063885][ C0] acpi_idle_enter+0xa1/0xc0 [ 114.068670][ C0] cpuidle_enter_state+0xcb/0x250 [ 114.073847][ C0] cpuidle_enter+0x7f/0xf0 [ 114.078553][ C0] do_idle+0x551/0x750 [ 114.082755][ C0] cpu_startup_entry+0x65/0x80 [ 114.087599][ C0] rest_init+0x1e8/0x260 [ 114.092032][ C0] start_kernel+0x92c/0xa70 [ 114.096678][ C0] x86_64_start_reservations+0x2e/0x30 [ 114.102462][ C0] x86_64_start_kernel+0x98/0xa0 [ 114.107575][ C0] common_startup_64+0x12c/0x137 [ 114.112751][ C0] [ 114.115148][ C0] Uninit was created at: [ 114.119660][ C0] __alloc_pages_noprof+0x9d6/0xe70 [ 114.125021][ C0] alloc_pages_mpol_noprof+0x299/0x990 [ 114.130803][ C0] alloc_pages_noprof+0x1bf/0x1e0 [ 114.136127][ C0] skb_page_frag_refill+0x2bf/0x7c0 [ 114.141580][ C0] virtnet_rq_alloc+0x43/0xbb0 [ 114.146609][ C0] try_fill_recv+0x3f0/0x2f50 [ 114.151581][ C0] virtnet_open+0x1cc/0xb00 [ 114.156245][ C0] __dev_open+0x546/0x6f0 [ 114.160795][ C0] __dev_change_flags+0x309/0x9a0 [ 114.165983][ C0] dev_change_flags+0x8e/0x1d0 [ 114.170953][ C0] devinet_ioctl+0x13ec/0x22c0 [ 114.175904][ C0] inet_ioctl+0x4bd/0x6d0 [ 114.180437][ C0] sock_do_ioctl+0xb7/0x540 [ 114.185091][ C0] sock_ioctl+0x727/0xd70 [ 114.189602][ C0] __se_sys_ioctl+0x261/0x450 [ 114.194696][ C0] __x64_sys_ioctl+0x96/0xe0 [ 114.199487][ C0] x64_sys_call+0x18c0/0x3b90 [ 114.204368][ C0] do_syscall_64+0xcd/0x1e0 [ 114.209064][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 114.215133][ C0] [ 114.217511][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.10.0-rc4-syzkaller-dirty #0 [ 114.226738][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 114.236984][ C0] ===================================================== [ 114.244114][ C0] Disabling lock debugging due to kernel taint [ 114.250782][ C0] Kernel panic - not syncing: kmsan.panic set ... [ 114.257250][ C0] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G B 6.10.0-rc4-syzkaller-dirty #0 [ 114.267410][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 114.277561][ C0] Call Trace: [ 114.280892][ C0] <IRQ> [ 114.283786][ C0] dump_stack_lvl+0x216/0x2d0 [ 114.288571][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 114.294499][ C0] dump_stack+0x1e/0x30 [ 114.298749][ C0] panic+0x4e2/0xcd0 [ 114.302817][ C0] ? kmsan_get_metadata+0xb1/0x1d0 [ 114.308066][ C0] kmsan_report+0x2d5/0x2e0 [ 114.312721][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.318200][ C0] ? __msan_warning+0x95/0x120 [ 114.323067][ C0] ? receive_buf+0x25e3/0x5fd0 [ 114.327937][ C0] ? virtnet_poll+0xd1c/0x23c0 [ 114.332904][ C0] ? __napi_poll+0xe7/0x980 [ 114.337566][ C0] ? net_rx_action+0x82a/0x1850 [ 114.342539][ C0] ? handle_softirqs+0x1ce/0x800 [ 114.347687][ C0] ? __irq_exit_rcu+0x68/0x120 [ 114.352577][ C0] ? irq_exit_rcu+0x12/0x20 [ 114.357170][ C0] ? common_interrupt+0x94/0xa0 [ 114.362308][ C0] ? asm_common_interrupt+0x2b/0x40 [ 114.367636][ C0] ? acpi_safe_halt+0x25/0x30 [ 114.372535][ C0] ? acpi_idle_do_entry+0x22/0x40 [ 114.377754][ C0] ? acpi_idle_enter+0xa1/0xc0 [ 114.382617][ C0] ? cpuidle_enter_state+0xcb/0x250 [ 114.387914][ C0] ? cpuidle_enter+0x7f/0xf0 [ 114.392631][ C0] ? do_idle+0x551/0x750 [ 114.396963][ C0] ? cpu_startup_entry+0x65/0x80 [ 114.401979][ C0] ? rest_init+0x1e8/0x260 [ 114.406488][ C0] ? start_kernel+0x92c/0xa70 [ 114.411277][ C0] ? x86_64_start_reservations+0x2e/0x30 [ 114.417062][ C0] ? x86_64_start_kernel+0x98/0xa0 [ 114.422838][ C0] ? common_startup_64+0x12c/0x137 [ 114.428096][ C0] ? kmsan_internal_memmove_metadata+0x17b/0x230 [ 114.434850][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.440427][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.446050][ C0] ? page_to_skb+0xdae/0x1620 [ 114.450931][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.456277][ C0] __msan_warning+0x95/0x120 [ 114.460988][ C0] receive_buf+0x25e3/0x5fd0 [ 114.465686][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.471013][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 114.477029][ C0] virtnet_poll+0xd1c/0x23c0 [ 114.481755][ C0] ? __pfx_virtnet_poll+0x10/0x10 [ 114.486892][ C0] __napi_poll+0xe7/0x980 [ 114.491329][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 114.496652][ C0] net_rx_action+0x82a/0x1850 [ 114.501454][ C0] ? sched_clock_cpu+0x55/0x870 [ 114.506415][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 114.511641][ C0] handle_softirqs+0x1ce/0x800 [ 114.516691][ C0] __irq_exit_rcu+0x68/0x120 [ 114.521462][ C0] irq_exit_rcu+0x12/0x20 [ 114.525906][ C0] common_interrupt+0x94/0xa0 [ 114.530773][ C0] </IRQ> [ 114.533771][ C0] <TASK> [ 114.536758][ C0] asm_common_interrupt+0x2b/0x40 [ 114.542185][ C0] RIP: 0010:acpi_safe_halt+0x25/0x30 [ 114.547620][ C0] Code: 90 90 90 90 90 55 48 89 e5 65 48 8b 04 25 80 5e 0a 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 6b 58 44 00 f3 0f 1e fa fb f4 <fa> 5d c3 cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 [ 114.567621][ C0] RSP: 0018:ffffffff90e03ce8 EFLAGS: 00000246 [ 114.573874][ C0] RAX: ffffffff90e2bdc0 RBX: ffffffff91286eb0 RCX: 0000000000000001 [ 114.581921][ C0] RDX: ffff888103176464 RSI: ffffffff91286eb0 RDI: ffff888103176464 [ 114.589991][ C0] RBP: ffffffff90e03ce8 R08: ffffea000000000f R09: 00000000000000ff [ 114.598071][ C0] R10: ffff88823f173dc2 R11: ffffffff8f790610 R12: ffff888106278400 [ 114.606347][ C0] R13: ffffffff91286f30 R14: 0000000000000001 R15: 0000000000000001 [ 114.614502][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 114.620219][ C0] acpi_idle_do_entry+0x22/0x40 [ 114.625320][ C0] acpi_idle_enter+0xa1/0xc0 [ 114.630012][ C0] cpuidle_enter_state+0xcb/0x250 [ 114.635136][ C0] cpuidle_enter+0x7f/0xf0 [ 114.639660][ C0] do_idle+0x551/0x750 [ 114.643814][ C0] cpu_startup_entry+0x65/0x80 [ 114.648680][ C0] rest_init+0x1e8/0x260 [ 114.653022][ C0] start_kernel+0x92c/0xa70 [ 114.657789][ C0] x86_64_start_reservations+0x2e/0x30 [ 114.663371][ C0] x86_64_start_kernel+0x98/0xa0 [ 114.668439][ C0] common_startup_64+0x12c/0x137 [ 114.673688][ C0] </TASK> [ 114.677305][ C0] Kernel Offset: disabled [ 114.681725][ C0] 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-build891887690=/tmp/go-build -gno-record-gcc-switches' git status (err=<nil>) HEAD detached at ca620dd8f9 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=ca620dd8f97f5b3a9134b687b5584203019518fb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240405-142321'" "-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=ca620dd8f97f5b3a9134b687b5584203019518fb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240405-142321'" "-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=ca620dd8f97f5b3a9134b687b5584203019518fb -X 'github.com/google/syzkaller/prog.gitRevisionDate=20240405-142321'" "-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=\"ca620dd8f97f5b3a9134b687b5584203019518fb\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=17bcf6da980000 Tested on: commit: 6ba59ff4 Linux 6.10-rc4 git tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git kernel config: https://syzkaller.appspot.com/x/.config?x=95d734ed31cad8a0 dashboard link: https://syzkaller.appspot.com/bug?extid=d31185aa54170f7fc1f5 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=11bfceda980000
