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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: 61ee5452e1b2df' [ 49.565928][ T1] ima: Allocated hash algorithm: sha256 [ 49.572049][ T1] ima: No architecture policies found [ 49.578974][ T1] evm: Initialising EVM extended attributes: [ 49.585220][ T1] evm: security.selinux (disabled) [ 49.590764][ T1] evm: security.SMACK64 (disabled) [ 49.595968][ T1] evm: security.SMACK64EXEC (disabled) [ 49.601835][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 49.608506][ T1] evm: security.SMACK64MMAP (disabled) [ 49.614038][ T1] evm: security.apparmor [ 49.618451][ T1] evm: security.ima [ 49.622436][ T1] evm: security.capability [ 49.627502][ T1] evm: HMAC attrs: 0x1 [ 49.636597][ T1] PM: Magic number: 12:387:485 [ 49.642665][ T1] usb usb18-port6: hash matches [ 49.648999][ T1] usb usb17-port7: hash matches [ 49.655774][ T1] printk: legacy console [netcon0] enabled [ 49.662095][ T1] netconsole: network logging started [ 49.669345][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 49.678657][ T1] rdma_rxe: loaded [ 49.684488][ T1] cfg80211: Loading compiled-in X.509 certificates for= regulatory database [ 49.706425][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 49.724152][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06= c7248db18c600' [ 49.733298][ T1] clk: Disabling unused clocks [ 49.739237][ T1] ALSA device list: [ 49.743250][ T1] #0: Dummy 1 [ 49.747040][ T1] #1: Loopback 1 [ 49.750957][ T1] #2: Virtual MIDI Card 1 [ 49.761414][ T43] platform regulatory.0: Direct firmware load for regu= latory.db failed with error -2 [ 49.771525][ T43] platform regulatory.0: Falling back to sysfs fallbac= k for: regulatory.db [ 49.781327][ T1] md: Waiting for all devices to be available before a= utodetect [ 49.789841][ T1] md: If you don't use raid, use raid=3Dnoautodetect [ 49.796709][ T1] md: Autodetecting RAID arrays. [ 49.801753][ T1] md: autorun ... [ 49.805475][ T1] md: ... autorun DONE. [ 49.898217][ T1] EXT4-fs (sda1): mounted filesystem 5941fea2-f5fa-4b4= e-b5ef-9af118b27b95 ro with ordered data mode. Quota mode: none. [ 49.911801][ T1] VFS: Mounted root (ext4 filesystem) readonly on devi= ce 8:1. [ 49.935132][ T1] devtmpfs: mounted [ 50.190758][ T1] Freeing unused kernel image (initmem) memory: 37036K [ 50.202710][ T1] Write protecting the kernel read-only data: 262144k [ 50.249033][ T1] Freeing unused kernel image (rodata/data gap) memory= : 1808K [ 51.885170][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 51.895531][ T1] x86/mm: Checking user space page tables [ 53.391911][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 53.401141][ T1] Failed to set sysctl parameter 'kernel.hung_task_all= _cpu_backtrace=3D1': parameter not found [ 53.422983][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_pan= ic=3D1': parameter not found [ 53.434940][ T1] Run /sbin/init as init process [ 54.937583][ T4446] mount (4446) used greatest stack depth: 8144 bytes l= eft [ 55.037752][ T4447] EXT4-fs (sda1): re-mounted 5941fea2-f5fa-4b4e-b5ef-9= af118b27b95 r/w. Quota mode: none. mount: mounting smackfs on /sys/fs/smackfs failed: No such file or director= y mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or direct= ory [ 55.371085][ T4450] mount (4450) used greatest stack depth: 5568 bytes l= eft Starting syslogd: OK Starting acpid: OK Starting klogd: OK Running sysctl: OK Populating /dev using udev: [ 59.193733][ T4480] udevd[4480]: starting ve= rsion 3.2.11 [ 62.697884][ T4481] udevd[4481]: starting eudev-3.2.11 [ 62.710663][ T4480] udevd (4480) used greatest stack depth: 5264 bytes l= eft 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 4693 no interfaces have a carrier [ 110.077072][ T4694] 8021q: adding VLAN 0 to HW filter on device bond0 [ 110.114606][ T4694] eql: remember to turn off Van-Jacobson compression o= n your slave devices Starting sshd: [ 111.638151][ T43] cfg80211: failed to load regulatory.d= b OK syzkaller syzkaller login: [ 115.668614][ C0] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 115.675770][ C0] BUG: KMSAN: uninit-value in receive_buf+0x25e3/0x5fd= 0 [ 115.682913][ C0] receive_buf+0x25e3/0x5fd0 [ 115.687725][ C0] virtnet_poll+0xd1c/0x23c0 [ 115.692508][ C0] __napi_poll+0xe7/0x980 [ 115.697035][ C0] net_rx_action+0x82a/0x1850 [ 115.701947][ C0] handle_softirqs+0x1ce/0x800 [ 115.706920][ C0] __irq_exit_rcu+0x68/0x120 [ 115.711977][ C0] irq_exit_rcu+0x12/0x20 [ 115.716495][ C0] common_interrupt+0x94/0xa0 [ 115.721393][ C0] asm_common_interrupt+0x2b/0x40 [ 115.726789][ C0] kmsan_metadata_is_contiguous+0x11/0x1e0 [ 115.732777][ C0] kmsan_get_shadow_origin_ptr+0x2a/0xb0 [ 115.738611][ C0] __msan_metadata_ptr_for_load_8+0x24/0x40 [ 115.744707][ C0] kmem_cache_alloc_noprof+0x1b0/0xb20 [ 115.750434][ C0] anon_vma_fork+0x2c8/0xad0 [ 115.755224][ C0] copy_mm+0x1b57/0x3ca0 [ 115.759770][ C0] copy_process+0x26f7/0x5b90 [ 115.764746][ C0] kernel_clone+0x401/0x1040 [ 115.769622][ C0] __x64_sys_clone+0x25c/0x360 [ 115.774688][ C0] x64_sys_call+0x2a45/0x3b90 [ 115.779774][ C0] do_syscall_64+0xcd/0x1e0 [ 115.784469][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 115.790699][ C0]=20 [ 115.793105][ C0] Uninit was created at: [ 115.797720][ C0] __alloc_pages_noprof+0x9d6/0xe70 [ 115.803195][ C0] alloc_pages_mpol_noprof+0x299/0x990 [ 115.808997][ C0] alloc_pages_noprof+0x1bf/0x1e0 [ 115.814258][ C0] skb_page_frag_refill+0x2bf/0x7c0 [ 115.819691][ C0] virtnet_rq_alloc+0x43/0xbb0 [ 115.824701][ C0] try_fill_recv+0x3f0/0x2f50 [ 115.829565][ C0] virtnet_open+0x1cc/0xb00 [ 115.834627][ C0] __dev_open+0x546/0x6f0 [ 115.839151][ C0] __dev_change_flags+0x309/0x9a0 [ 115.844358][ C0] dev_change_flags+0x8e/0x1d0 [ 115.849310][ C0] devinet_ioctl+0x13ec/0x22c0 [ 115.854298][ C0] inet_ioctl+0x4bd/0x6d0 [ 115.858825][ C0] sock_do_ioctl+0xb7/0x540 [ 115.863572][ C0] sock_ioctl+0x727/0xd70 [ 115.868115][ C0] __se_sys_ioctl+0x261/0x450 [ 115.872978][ C0] __x64_sys_ioctl+0x96/0xe0 [ 115.877780][ C0] x64_sys_call+0x18c0/0x3b90 [ 115.882898][ C0] do_syscall_64+0xcd/0x1e0 [ 115.887598][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 115.894138][ C0]=20 [ 115.896697][ C0] CPU: 0 PID: 4833 Comm: dhcpcd-run-hook Not tainted 6= .10.0-rc3-syzkaller-00022-g78161c936167 #0 [ 115.907699][ C0] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 06/07/2024 [ 115.918263][ C0] =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D [ 115.925284][ C0] Disabling lock debugging due to kernel taint [ 115.931598][ C0] Kernel panic - not syncing: kmsan.panic set ... [ 115.938121][ C0] CPU: 0 PID: 4833 Comm: dhcpcd-run-hook Tainted: G = B 6.10.0-rc3-syzkaller-00022-g78161c936167 #0 [ 115.951147][ C0] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 06/07/2024 [ 115.961392][ C0] Call Trace: [ 115.964735][ C0] [ 115.967631][ C0] dump_stack_lvl+0x216/0x2d0 [ 115.972463][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 115.978480][ C0] dump_stack+0x1e/0x30 [ 115.982741][ C0] panic+0x4e2/0xcd0 [ 115.986784][ C0] ? kmsan_get_metadata+0x81/0x1d0 [ 115.992099][ C0] kmsan_report+0x2d5/0x2e0 [ 115.996714][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.002010][ C0] ? __msan_warning+0x95/0x120 [ 116.007035][ C0] ? receive_buf+0x25e3/0x5fd0 [ 116.011916][ C0] ? virtnet_poll+0xd1c/0x23c0 [ 116.016876][ C0] ? __napi_poll+0xe7/0x980 [ 116.021526][ C0] ? net_rx_action+0x82a/0x1850 [ 116.026608][ C0] ? handle_softirqs+0x1ce/0x800 [ 116.031670][ C0] ? __irq_exit_rcu+0x68/0x120 [ 116.036542][ C0] ? irq_exit_rcu+0x12/0x20 [ 116.041163][ C0] ? common_interrupt+0x94/0xa0 [ 116.046211][ C0] ? asm_common_interrupt+0x2b/0x40 [ 116.051608][ C0] ? kmsan_metadata_is_contiguous+0x11/0x1e0 [ 116.057724][ C0] ? kmsan_get_shadow_origin_ptr+0x2a/0xb0 [ 116.063734][ C0] ? __msan_metadata_ptr_for_load_8+0x24/0x40 [ 116.069923][ C0] ? kmem_cache_alloc_noprof+0x1b0/0xb20 [ 116.075660][ C0] ? anon_vma_fork+0x2c8/0xad0 [ 116.080547][ C0] ? copy_mm+0x1b57/0x3ca0 [ 116.085158][ C0] ? copy_process+0x26f7/0x5b90 [ 116.090122][ C0] ? kernel_clone+0x401/0x1040 [ 116.095009][ C0] ? __x64_sys_clone+0x25c/0x360 [ 116.100114][ C0] ? x64_sys_call+0x2a45/0x3b90 [ 116.105088][ C0] ? do_syscall_64+0xcd/0x1e0 [ 116.109969][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 116.116530][ C0] ? kmsan_internal_memmove_metadata+0x17b/0x230 [ 116.123065][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.128453][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.133856][ C0] ? page_to_skb+0xdae/0x1620 [ 116.138636][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.143993][ C0] __msan_warning+0x95/0x120 [ 116.148713][ C0] receive_buf+0x25e3/0x5fd0 [ 116.153414][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.158922][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 116.164985][ C0] virtnet_poll+0xd1c/0x23c0 [ 116.169720][ C0] ? __pfx_virtnet_poll+0x10/0x10 [ 116.174942][ C0] __napi_poll+0xe7/0x980 [ 116.179431][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.184754][ C0] net_rx_action+0x82a/0x1850 [ 116.189579][ C0] ? sched_clock_cpu+0x55/0x870 [ 116.194593][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 116.199846][ C0] handle_softirqs+0x1ce/0x800 [ 116.204734][ C0] __irq_exit_rcu+0x68/0x120 [ 116.209452][ C0] irq_exit_rcu+0x12/0x20 [ 116.213891][ C0] common_interrupt+0x94/0xa0 [ 116.218689][ C0] [ 116.221668][ C0] [ 116.224666][ C0] asm_common_interrupt+0x2b/0x40 [ 116.229996][ C0] RIP: 0010:kmsan_metadata_is_contiguous+0x11/0x1e0 [ 116.236882][ C0] Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 9= 0 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 48 89 e5 41 57 41 56 41 55 41 5= 4 53 <48> 83 ec 28 41 b7 01 48 85 f6 0f 84 fa 00 00 00 49 89 f6 49 89 fd [ 116.256797][ C0] RSP: 0018:ffff88811798b800 EFLAGS: 00000202 [ 116.263179][ C0] RAX: 0000000000000000 RBX: 0000000000000286 RCX: 000= 000023fd2eed8 [ 116.271335][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: fff= f88813fcaaed0 [ 116.279678][ C0] RBP: ffff88811798b828 R08: ffffea000000000f R09: 000= 0000000000000 [ 116.287830][ C0] R10: ffff88811718b8e0 R11: 0000000000000004 R12: 000= 0000000000000 [ 116.296069][ C0] R13: 00000000000aaed0 R14: 0000000000000000 R15: fff= f88813fcaaed0 [ 116.304176][ C0] kmsan_get_shadow_origin_ptr+0x2a/0xb0 [ 116.309957][ C0] __msan_metadata_ptr_for_load_8+0x24/0x40 [ 116.315975][ C0] kmem_cache_alloc_noprof+0x1b0/0xb20 [ 116.321559][ C0] ? anon_vma_fork+0x2c8/0xad0 [ 116.326458][ C0] anon_vma_fork+0x2c8/0xad0 [ 116.331167][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 116.337093][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.342519][ C0] copy_mm+0x1b57/0x3ca0 [ 116.346908][ C0] copy_process+0x26f7/0x5b90 [ 116.351896][ C0] kernel_clone+0x401/0x1040 [ 116.356596][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.361896][ C0] ? kmsan_get_metadata+0x146/0x1d0 [ 116.367640][ C0] ? __msan_memset+0xf5/0x1b0 [ 116.372457][ C0] __x64_sys_clone+0x25c/0x360 [ 116.377377][ C0] x64_sys_call+0x2a45/0x3b90 [ 116.382201][ C0] do_syscall_64+0xcd/0x1e0 [ 116.386840][ C0] ? clear_bhb_loop+0x25/0x80 [ 116.391663][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 116.397791][ C0] RIP: 0033:0x7f5286b82a12 [ 116.402300][ C0] Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 0= 0 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0= f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83 [ 116.422246][ C0] RSP: 002b:00007ffc58a2d428 EFLAGS: 00000246 ORIG_RAX= : 0000000000000038 [ 116.430864][ C0] RAX: ffffffffffffffda RBX: 000055b776464901 RCX: 000= 07f5286b82a12 [ 116.438942][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000= 0000001200011 [ 116.447162][ C0] RBP: 000055b776465ba0 R08: 0000000000000000 R09: 3c0= 0000000001001 [ 116.455213][ C0] R10: 00007f5286a48650 R11: 0000000000000246 R12: 000= 055b776468368 [ 116.463463][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 000= 0000000000000 [ 116.471794][ C0] [ 116.475163][ C0] Kernel Offset: disabled [ 116.479655][ C0] 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-2/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs-2/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-2/linux/gopath/src/github.com/google/syzkaller/go.= mod' 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-build572936856=3D/tmp/go-build -gno-record-gcc= -switches' git status (err=3D) HEAD detached at c8349e4853 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/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 Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build "-ldflags=3D-s -w -X github.com/google= /syzkaller/prog.GitRevision=3Dc8349e48534ea6d8f01515335d95de8ebf5da8df -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20240412-102842'" "-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=3Dc8349e48534ea6d8f01515335d95de8ebf5da8df -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20240412-102842'" "-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=3Dc8349e48534ea6d8f01515335d95de8ebf5da8df -X '= github.com/google/syzkaller/prog.gitRevisionDate=3D20240412-102842'" "-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 -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -fpermissive -w -DGOOS_linux=3D1 -DGOARCH_amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"c8349e48534ea6d8f01515335d95de8ebf= 5da8df\" Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=3D11313a2e980000 Tested on: commit: 78161c93 kernel/bpf: KMSAN: uninit-value in htab_lru_p.. git tree: https://linux.googlesource.com/linux/kernel/git/torvalds/li= nux kernel config: https://syzkaller.appspot.com/x/.config?x=3D3486f1660f47f85= 5 dashboard link: https://syzkaller.appspot.com/bug?extid=3D1971e47e5210c718d= b3c compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debia= n) 2.40 Note: no patches were applied.