./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3354234194 <...> Warning: Permanently added '10.128.0.109' (ED25519) to the list of known hosts. execve("./syz-executor3354234194", ["./syz-executor3354234194"], 0x7ffc3ee5b480 /* 10 vars */) = 0 brk(NULL) = 0x5555837e9000 brk(0x5555837e9d00) = 0x5555837e9d00 arch_prctl(ARCH_SET_FS, 0x5555837e9380) = 0 set_tid_address(0x5555837e9650) = 5794 set_robust_list(0x5555837e9660, 24) = 0 rseq(0x5555837e9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3354234194", 4096) = 28 getrandom("\x34\xac\x2d\xb4\x05\xa1\x1f\x03", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555837e9d00 brk(0x55558380ad00) = 0x55558380ad00 brk(0x55558380b000) = 0x55558380b000 mprotect(0x7f94486ef000, 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=0x5555837e9650) = 5795 ./strace-static-x86_64: Process 5795 attached [pid 5795] set_robust_list(0x5555837e9660, 24) = 0 [pid 5795] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5795] getppid() = 0 [pid 5795] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5795] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5795] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5795] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5795] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5795] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5795] unshare(CLONE_NEWNS) = 0 [pid 5795] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5795] unshare(CLONE_NEWIPC) = 0 [pid 5795] unshare(CLONE_NEWCGROUP) = 0 [pid 5795] unshare(CLONE_NEWUTS) = 0 [pid 5795] unshare(CLONE_SYSVSEM) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "16777216", 8) = 8 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "536870912", 9) = 9 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1024", 4) = 4 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "8192", 4) = 4 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1024", 4) = 4 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1024", 4) = 4 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5795] close(3) = 0 [pid 5795] getpid() = 1 [pid 5795] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5821] set_robust_list(0x5555837e9660, 24) = 0 [pid 5821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5795] <... clone resumed>, child_tidptr=0x5555837e9650) = 2 [pid 5821] setpgid(0, 0) = 0 [pid 5821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5821] write(3, "1000", 4) = 4 [pid 5821] close(3) = 0 [pid 5821] write(1, "executing program\n", 18) = 18 [pid 5821] socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL)) = 3 [pid 5821] socket(AF_CAN, SOCK_DGRAM, CAN_J1939) = 4 [pid 5821] ioctl(4, SIOCGIFINDEX, {ifr_name="hsr0", ifr_ifindex=45}) = 0 [ 188.372956][ T5821] ===================================================== [ 188.380148][ T5821] BUG: KMSAN: uninit-value in hsr_forward_skb+0x9ee/0x3b10 [ 188.387593][ T5821] hsr_forward_skb+0x9ee/0x3b10 [ 188.392755][ T5821] hsr_dev_xmit+0x2f0/0x350 [ 188.397445][ T5821] dev_hard_start_xmit+0x247/0xa20 [ 188.402865][ T5821] __dev_queue_xmit+0x366a/0x57d0 [ 188.408056][ T5821] packet_xmit+0x9c/0x6c0 [ 188.412632][ T5821] packet_sendmsg+0x91ae/0xa6f0 [ 188.417685][ T5821] __sock_sendmsg+0x30f/0x380 [ 188.422716][ T5821] __sys_sendto+0x594/0x750 [ 188.427653][ T5821] __x64_sys_sendto+0x125/0x1d0 [ 188.432798][ T5821] x64_sys_call+0x346a/0x3c30 [ 188.437659][ T5821] do_syscall_64+0xcd/0x1e0 [ 188.442471][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.448557][ T5821] [ 188.450923][ T5821] Uninit was created at: [ 188.455560][ T5821] kmem_cache_alloc_node_noprof+0x6bf/0xb80 [ 188.461634][ T5821] kmalloc_reserve+0x13d/0x4a0 [ 188.466678][ T5821] __alloc_skb+0x363/0x7b0 [ 188.471250][ T5821] alloc_skb_with_frags+0xc8/0xd00 [ 188.476601][ T5821] sock_alloc_send_pskb+0xa81/0xbf0 [ 188.482070][ T5821] packet_sendmsg+0x74c6/0xa6f0 [ 188.487062][ T5821] __sock_sendmsg+0x30f/0x380 [ 188.492093][ T5821] __sys_sendto+0x594/0x750 [ 188.496758][ T5821] __x64_sys_sendto+0x125/0x1d0 [ 188.501709][ T5821] x64_sys_call+0x346a/0x3c30 [ 188.506707][ T5821] do_syscall_64+0xcd/0x1e0 [ 188.511361][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.517603][ T5821] [ 188.520056][ T5821] CPU: 0 UID: 0 PID: 5821 Comm: syz-executor335 Not tainted 6.12.0-syzkaller-05676-gfc39fb56917b #0 [ 188.531213][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 188.541502][ T5821] ===================================================== [ 188.548659][ T5821] Disabling lock debugging due to kernel taint [ 188.555004][ T5821] Kernel panic - not syncing: kmsan.panic set ... [ 188.561517][ T5821] CPU: 0 UID: 0 PID: 5821 Comm: syz-executor335 Tainted: G B 6.12.0-syzkaller-05676-gfc39fb56917b #0 [ 188.573923][ T5821] Tainted: [B]=BAD_PAGE [ 188.578149][ T5821] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 188.588336][ T5821] Call Trace: [ 188.591690][ T5821] [ 188.594687][ T5821] dump_stack_lvl+0x216/0x2d0 [ 188.599467][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.605416][ T5821] dump_stack+0x1e/0x30 [ 188.609675][ T5821] panic+0x4e2/0xcf0 [ 188.613690][ T5821] ? kmsan_get_metadata+0xc1/0x1c0 [ 188.619053][ T5821] kmsan_report+0x2c7/0x2d0 [ 188.623738][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.629700][ T5821] ? __msan_warning+0x95/0x120 [ 188.634628][ T5821] ? hsr_forward_skb+0x9ee/0x3b10 [ 188.639832][ T5821] ? hsr_dev_xmit+0x2f0/0x350 [ 188.644646][ T5821] ? dev_hard_start_xmit+0x247/0xa20 [ 188.650062][ T5821] ? __dev_queue_xmit+0x366a/0x57d0 [ 188.655369][ T5821] ? packet_xmit+0x9c/0x6c0 [ 188.659966][ T5821] ? packet_sendmsg+0x91ae/0xa6f0 [ 188.665135][ T5821] ? __sock_sendmsg+0x30f/0x380 [ 188.670210][ T5821] ? __sys_sendto+0x594/0x750 [ 188.675054][ T5821] ? __x64_sys_sendto+0x125/0x1d0 [ 188.680202][ T5821] ? x64_sys_call+0x346a/0x3c30 [ 188.685170][ T5821] ? do_syscall_64+0xcd/0x1e0 [ 188.689955][ T5821] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.696150][ T5821] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 188.702600][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.707917][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.713873][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.719258][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.725189][ T5821] ? hsr_get_node+0x7bc/0xd30 [ 188.729994][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.735308][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.741237][ T5821] ? __pfx_hsr_fill_frame_info+0x10/0x10 [ 188.746972][ T5821] __msan_warning+0x95/0x120 [ 188.751688][ T5821] hsr_forward_skb+0x9ee/0x3b10 [ 188.756714][ T5821] hsr_dev_xmit+0x2f0/0x350 [ 188.761358][ T5821] ? __pfx_hsr_dev_xmit+0x10/0x10 [ 188.766542][ T5821] dev_hard_start_xmit+0x247/0xa20 [ 188.771863][ T5821] __dev_queue_xmit+0x366a/0x57d0 [ 188.777028][ T5821] ? __dev_queue_xmit+0x3d6/0x57d0 [ 188.782357][ T5821] packet_xmit+0x9c/0x6c0 [ 188.787244][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.792647][ T5821] packet_sendmsg+0x91ae/0xa6f0 [ 188.797719][ T5821] ? psi_group_change+0xfd5/0x15a0 [ 188.802960][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.808272][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.814232][ T5821] ? aa_label_sk_perm+0x677/0x7b0 [ 188.819436][ T5821] ? filter_irq_stacks+0x60/0x1a0 [ 188.824575][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.829925][ T5821] ? __pfx_packet_sendmsg+0x10/0x10 [ 188.835244][ T5821] ? __pfx_packet_sendmsg+0x10/0x10 [ 188.840562][ T5821] __sock_sendmsg+0x30f/0x380 [ 188.845396][ T5821] __sys_sendto+0x594/0x750 [ 188.850007][ T5821] ? kmsan_get_metadata+0x13e/0x1c0 [ 188.855322][ T5821] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 188.861333][ T5821] __x64_sys_sendto+0x125/0x1d0 [ 188.866310][ T5821] x64_sys_call+0x346a/0x3c30 [ 188.871119][ T5821] do_syscall_64+0xcd/0x1e0 [ 188.875720][ T5821] ? clear_bhb_loop+0x25/0x80 [ 188.880524][ T5821] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 188.886553][ T5821] RIP: 0033:0x7f9448676de9 [ 188.891139][ T5821] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 [ 188.911047][ T5821] RSP: 002b:00007ffc8f95aea8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 188.919617][ T5821] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9448676de9 [ 188.927738][ T5821] RDX: 000000000000000e RSI: 00000000200000c0 RDI: 0000000000000003 [ 188.935979][ T5821] RBP: 00000000000f4240 R08: 0000000020000080 R09: 0000000000000014 [ 188.944048][ T5821] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc8f95af10 [ 188.952120][ T5821] R13: 00007f94486c43fe R14: 0000000000000003 R15: 00007ffc8f95aef0 [ 188.960315][ T5821] [ 188.963852][ T5821] Kernel Offset: disabled [ 188.968245][ T5821] Rebooting in 86400 seconds..