./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4159113996 <...> Warning: Permanently added '10.128.0.217' (ED25519) to the list of known hosts. execve("./syz-executor4159113996", ["./syz-executor4159113996"], 0x7ffd8e3574a0 /* 10 vars */) = 0 brk(NULL) = 0x555556d07000 brk(0x555556d07d00) = 0x555556d07d00 arch_prctl(ARCH_SET_FS, 0x555556d07380) = 0 set_tid_address(0x555556d07650) = 5024 set_robust_list(0x555556d07660, 24) = 0 rseq(0x555556d07ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4159113996", 4096) = 28 getrandom("\x67\xd9\x0d\x7e\x3b\xcf\x13\x66", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556d07d00 brk(0x555556d28d00) = 0x555556d28d00 brk(0x555556d29000) = 0x555556d29000 mprotect(0x7f9fbbea9000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556d07650) = 5025 ./strace-static-x86_64: Process 5025 attached [pid 5025] set_robust_list(0x555556d07660, 24) = 0 [pid 5025] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5025] setsid() = 1 [pid 5025] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5025] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5025] unshare(CLONE_NEWNS) = 0 [pid 5025] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5025] unshare(CLONE_NEWIPC) = 0 [pid 5025] unshare(CLONE_NEWCGROUP) = 0 [pid 5025] unshare(CLONE_NEWUTS) = 0 [pid 5025] unshare(CLONE_SYSVSEM) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "16777216", 8) = 8 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "536870912", 9) = 9 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "8192", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024", 4) = 4 [pid 5025] close(3) = 0 [pid 5025] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5025] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5025] close(3) = 0 [pid 5025] getpid() = 1 [pid 5025] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5052] set_robust_list(0x555556d07660, 24 [pid 5025] <... clone resumed>, child_tidptr=0x555556d07650) = 2 [pid 5052] <... set_robust_list resumed>) = 0 [pid 5052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5052] setpgid(0, 0) = 0 [pid 5052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5052] write(3, "1000", 4) = 4 [pid 5052] close(3) = 0 [pid 5052] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5052] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5052] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5052] read(200, 0x7ffe9e1d27c0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5052] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_LWT_XMIT, insn_cnt=14, insns=0x20000500, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72) = 3 [ 155.985935][ T5052] ===================================================== [ 155.993339][ T5052] BUG: KMSAN: uninit-value in batadv_get_vid+0x1b6/0x2e0 [ 156.000702][ T5052] batadv_get_vid+0x1b6/0x2e0 [ 156.005592][ T5052] batadv_interface_tx+0x329/0x1ce0 [ 156.011125][ T5052] dev_hard_start_xmit+0x244/0xa10 [ 156.016549][ T5052] __dev_queue_xmit+0x33ed/0x51c0 [ 156.021965][ T5052] __bpf_redirect+0x1478/0x1600 [ 156.026983][ T5052] bpf_clone_redirect+0x328/0x470 [ 156.032221][ T5052] ___bpf_prog_run+0x2180/0xdb80 [ 156.037304][ T5052] __bpf_prog_run512+0xb5/0xe0 [ 156.042288][ T5052] bpf_test_run+0x482/0xaf0 [ 156.046993][ T5052] bpf_prog_test_run_skb+0x14e5/0x1f20 [ 156.052884][ T5052] bpf_prog_test_run+0x6af/0xac0 [ 156.058018][ T5052] __sys_bpf+0x649/0xd60 [ 156.062546][ T5052] __x64_sys_bpf+0xa0/0xe0 [ 156.067145][ T5052] do_syscall_64+0xcf/0x1e0 [ 156.071959][ T5052] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 156.078042][ T5052] [ 156.080405][ T5052] Uninit was created at: [ 156.084957][ T5052] kmem_cache_alloc_node+0x5cb/0xbc0 [ 156.090415][ T5052] kmalloc_reserve+0x13d/0x4a0 [ 156.095483][ T5052] pskb_expand_head+0x226/0x1a00 [ 156.100643][ T5052] skb_ensure_writable+0x3d3/0x460 [ 156.106206][ T5052] bpf_clone_redirect+0x17f/0x470 [ 156.111505][ T5052] ___bpf_prog_run+0x2180/0xdb80 [ 156.116585][ T5052] __bpf_prog_run512+0xb5/0xe0 [ 156.121614][ T5052] bpf_test_run+0x482/0xaf0 [ 156.126304][ T5052] bpf_prog_test_run_skb+0x14e5/0x1f20 [ 156.132056][ T5052] bpf_prog_test_run+0x6af/0xac0 [ 156.137168][ T5052] __sys_bpf+0x649/0xd60 [ 156.141606][ T5052] __x64_sys_bpf+0xa0/0xe0 [ 156.146206][ T5052] do_syscall_64+0xcf/0x1e0 [ 156.151002][ T5052] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 156.157086][ T5052] [ 156.159454][ T5052] CPU: 0 PID: 5052 Comm: syz-executor415 Not tainted 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0 [ 156.170178][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 156.180415][ T5052] ===================================================== [ 156.187804][ T5052] Disabling lock debugging due to kernel taint [ 156.194235][ T5052] Kernel panic - not syncing: kmsan.panic set ... [ 156.200774][ T5052] CPU: 0 PID: 5052 Comm: syz-executor415 Tainted: G B 6.8.0-rc6-syzkaller-00250-g04b8076df253 #0 [ 156.212860][ T5052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 156.223229][ T5052] Call Trace: [ 156.226597][ T5052] [ 156.229619][ T5052] dump_stack_lvl+0x1bf/0x240 [ 156.234446][ T5052] dump_stack+0x1e/0x20 [ 156.238731][ T5052] panic+0x4de/0xc90 [ 156.242859][ T5052] kmsan_report+0x2d0/0x2d0 [ 156.247549][ T5052] ? __msan_warning+0x96/0x120 [ 156.252467][ T5052] ? batadv_get_vid+0x1b6/0x2e0 [ 156.257697][ T5052] ? batadv_interface_tx+0x329/0x1ce0 [ 156.263191][ T5052] ? dev_hard_start_xmit+0x244/0xa10 [ 156.268660][ T5052] ? __dev_queue_xmit+0x33ed/0x51c0 [ 156.274002][ T5052] ? __bpf_redirect+0x1478/0x1600 [ 156.279220][ T5052] ? bpf_clone_redirect+0x328/0x470 [ 156.284597][ T5052] ? ___bpf_prog_run+0x2180/0xdb80 [ 156.289920][ T5052] ? __bpf_prog_run512+0xb5/0xe0 [ 156.295121][ T5052] ? bpf_test_run+0x482/0xaf0 [ 156.300000][ T5052] ? bpf_prog_test_run_skb+0x14e5/0x1f20 [ 156.305844][ T5052] ? bpf_prog_test_run+0x6af/0xac0 [ 156.311153][ T5052] ? __sys_bpf+0x649/0xd60 [ 156.315755][ T5052] ? __x64_sys_bpf+0xa0/0xe0 [ 156.320530][ T5052] ? do_syscall_64+0xcf/0x1e0 [ 156.325383][ T5052] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 156.331653][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.337638][ T5052] ? do_syscall_64+0xcf/0x1e0 [ 156.342440][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.347823][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.353816][ T5052] ? skb_network_protocol+0x33a/0x9b0 [ 156.359396][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.364744][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.370686][ T5052] ? batadv_interface_tx+0xc6/0x1ce0 [ 156.376148][ T5052] ? filter_irq_stacks+0x60/0x1a0 [ 156.381362][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.386719][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.392659][ T5052] __msan_warning+0x96/0x120 [ 156.397414][ T5052] batadv_get_vid+0x1b6/0x2e0 [ 156.402304][ T5052] batadv_interface_tx+0x329/0x1ce0 [ 156.407684][ T5052] ? batadv_softif_is_valid+0x90/0x90 [ 156.413283][ T5052] ? batadv_softif_is_valid+0x90/0x90 [ 156.418923][ T5052] dev_hard_start_xmit+0x244/0xa10 [ 156.424177][ T5052] __dev_queue_xmit+0x33ed/0x51c0 [ 156.429356][ T5052] ? __dev_queue_xmit+0x352/0x51c0 [ 156.434684][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.440050][ T5052] __bpf_redirect+0x1478/0x1600 [ 156.445046][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.450432][ T5052] bpf_clone_redirect+0x328/0x470 [ 156.455662][ T5052] ___bpf_prog_run+0x2180/0xdb80 [ 156.460737][ T5052] ? stack_depot_save_flags+0x2c/0x6e0 [ 156.466402][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.471778][ T5052] __bpf_prog_run512+0xb5/0xe0 [ 156.476652][ T5052] ? remove_rmap_item_from_tree+0xbb0/0xca0 [ 156.482714][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.488730][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.494108][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.500103][ T5052] ? ktime_get+0x37d/0x460 [ 156.504693][ T5052] ? kmsan_get_metadata+0x146/0x1c0 [ 156.510073][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.516026][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.522003][ T5052] ? __bpf_prog_run480+0xe0/0xe0 [ 156.527068][ T5052] bpf_test_run+0x482/0xaf0 [ 156.531792][ T5052] ? bpf_test_run+0x381/0xaf0 [ 156.536698][ T5052] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.542714][ T5052] bpf_prog_test_run_skb+0x14e5/0x1f20 [ 156.548393][ T5052] ? __bpf_prog_test_run_raw_tp+0x2c0/0x2c0 [ 156.554488][ T5052] bpf_prog_test_run+0x6af/0xac0 [ 156.559552][ T5052] __sys_bpf+0x649/0xd60 [ 156.563922][ T5052] __x64_sys_bpf+0xa0/0xe0 [ 156.568454][ T5052] do_syscall_64+0xcf/0x1e0 [ 156.573156][ T5052] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 156.579212][ T5052] RIP: 0033:0x7f9fbbe302d9 [ 156.583761][ T5052] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 156.603751][ T5052] RSP: 002b:00007ffe9e1d2bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 156.612353][ T5052] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9fbbe302d9 [ 156.620474][ T5052] RDX: 0000000000000050 RSI: 0000000020000080 RDI: 000000000000000a [ 156.628585][ T5052] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 156.636678][ T5052] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 156.644882][ T5052] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 156.652976][ T5052] [ 156.656388][ T5052] Kernel Offset: disabled [ 156.660763][ T5052] Rebooting in 86400 seconds..