./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3229125876 <...> Warning: Permanently added '10.128.1.82' (ED25519) to the list of known hosts. execve("./syz-executor3229125876", ["./syz-executor3229125876"], 0x7fffe82e3320 /* 10 vars */) = 0 brk(NULL) = 0x555556fc1000 brk(0x555556fc1d00) = 0x555556fc1d00 arch_prctl(ARCH_SET_FS, 0x555556fc1380) = 0 set_tid_address(0x555556fc1650) = 5070 set_robust_list(0x555556fc1660, 24) = 0 rseq(0x555556fc1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3229125876", 4096) = 28 getrandom("\x20\x00\x2b\x0d\xb6\x59\x58\xa5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556fc1d00 brk(0x555556fe2d00) = 0x555556fe2d00 brk(0x555556fe3000) = 0x555556fe3000 mprotect(0x7fe1c2538000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556fc1650) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5071] set_robust_list(0x555556fc1660, 24) = 0 [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1000", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=11, insns=0x20000180, license="GPL", 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, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = 3 [pid 5071] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=3}}, 16) = 4 [pid 5071] exit_group(0) = ? [ 76.177145][ T5071] BUG: unable to handle page fault for address: ffffffffff600000 [ 76.184886][ T5071] #PF: supervisor read access in kernel mode [ 76.190971][ T5071] #PF: error_code(0x0000) - not-present page [ 76.197174][ T5071] PGD cd7a067 P4D cd7a067 PUD cd7c067 PMD cd9f067 PTE 0 [ 76.204143][ T5071] Oops: 0000 [#1] PREEMPT SMP KASAN [ 76.209333][ T5071] CPU: 1 PID: 5071 Comm: syz-executor322 Not tainted 6.6.0-syzkaller-15867-g1fda5bb66ad8 #0 [ 76.219392][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 76.229647][ T5071] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 76.236115][ T5071] Code: ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ab 01 00 00 41 83 85 6c 17 00 00 01 eb 1e e8 ba 23 cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 a1 [ 76.255810][ T5071] RSP: 0018:ffffc900038d7ae8 EFLAGS: 00010293 [ 76.261877][ T5071] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8690c [ 76.269855][ T5071] RDX: ffff888016ab0000 RSI: ffffffff81b868e6 RDI: 0000000000000007 [ 76.277814][ T5071] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 76.285782][ T5071] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc900038d7b30 [ 76.293837][ T5071] R13: ffff888016ab0000 R14: dffffc0000000000 R15: 0000000000000000 [ 76.301819][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 76.310778][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.317385][ T5071] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 76.325382][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.333370][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.341452][ T5071] Call Trace: [ 76.344744][ T5071] [ 76.347681][ T5071] ? show_regs+0x8f/0xa0 [ 76.352043][ T5071] ? __die+0x2c/0x80 [ 76.355939][ T5071] ? 0xffffffffff600000 [ 76.360296][ T5071] ? page_fault_oops+0x398/0xad0 [ 76.365266][ T5071] ? dump_pagetable+0x530/0x530 [ 76.370314][ T5071] ? hlock_class+0x4e/0x130 [ 76.374831][ T5071] ? __lock_acquire+0xc4d/0x3b10 [ 76.379873][ T5071] ? 0xffffffffff600000 [ 76.384022][ T5071] ? do_user_addr_fault+0x53d/0x1000 [ 76.389425][ T5071] ? irqentry_enter+0x2d/0x50 [ 76.394233][ T5071] ? rcu_is_watching+0x12/0xb0 [ 76.399082][ T5071] ? 0xffffffffff600000 [ 76.403319][ T5071] ? exc_page_fault+0x5d/0xc0 [ 76.408001][ T5071] ? asm_exc_page_fault+0x26/0x30 [ 76.413027][ T5071] ? 0xffffffffff600000 [ 76.417172][ T5071] ? copy_from_kernel_nofault+0xac/0x240 [ 76.422804][ T5071] ? copy_from_kernel_nofault+0x86/0x240 [ 76.428433][ T5071] ? copy_from_kernel_nofault+0x86/0x240 [ 76.434063][ T5071] ? copy_from_kernel_nofault+0x86/0x240 [ 76.439696][ T5071] ? 0xffffffffff600000 [ 76.443934][ T5071] bpf_probe_read_kernel+0x26/0x70 [ 76.449052][ T5071] bpf_prog_bd8b22826c103b08+0x42/0x44 [ 76.454561][ T5071] bpf_trace_run2+0x14e/0x410 [ 76.459862][ T5071] ? __bpf_trace_bpf_trace_printk+0xd0/0xd0 [ 76.465766][ T5071] ? __vm_area_free+0x3e/0x140 [ 76.470548][ T5071] ? free_unref_page+0x1df/0x3b0 [ 76.475501][ T5071] kfree+0xec/0x150 [ 76.479316][ T5071] __vm_area_free+0x3e/0x140 [ 76.483925][ T5071] remove_vma+0x128/0x170 [ 76.488362][ T5071] exit_mmap+0x453/0xa70 [ 76.492603][ T5071] ? do_vma_munmap+0x70/0x70 [ 76.497201][ T5071] __mmput+0x12a/0x4d0 [ 76.501267][ T5071] mmput+0x62/0x70 [ 76.504985][ T5071] do_exit+0x9ad/0x2ae0 [ 76.509150][ T5071] ? do_group_exit+0x1c5/0x2a0 [ 76.514084][ T5071] ? reacquire_held_locks+0x4c0/0x4c0 [ 76.519718][ T5071] ? do_raw_spin_lock+0x12e/0x2b0 [ 76.524733][ T5071] ? mm_update_next_owner+0x840/0x840 [ 76.530094][ T5071] ? spin_bug+0x1d0/0x1d0 [ 76.534416][ T5071] do_group_exit+0xd4/0x2a0 [ 76.538914][ T5071] __x64_sys_exit_group+0x3e/0x50 [ 76.543930][ T5071] do_syscall_64+0x40/0x110 [ 76.548426][ T5071] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 76.554323][ T5071] RIP: 0033:0x7fe1c24c2dc9 [ 76.558728][ T5071] Code: Unable to access opcode bytes at 0x7fe1c24c2d9f. [ 76.565729][ T5071] RSP: 002b:00007ffd4d4b8dc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 76.574136][ T5071] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe1c24c2dc9 [ 76.582097][ T5071] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 76.590073][ T5071] RBP: 00007fe1c253e290 R08: ffffffffffffffb8 R09: 0000000000000006 [ 76.598039][ T5071] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe1c253e290 [ 76.606002][ T5071] R13: 0000000000000000 R14: 00007fe1c253ece0 R15: 00007fe1c2494030 [ 76.613970][ T5071] [ 76.616977][ T5071] Modules linked in: [ 76.620861][ T5071] CR2: ffffffffff600000 [ 76.625005][ T5071] ---[ end trace 0000000000000000 ]--- [ 76.630969][ T5071] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 76.637216][ T5071] Code: ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ab 01 00 00 41 83 85 6c 17 00 00 01 eb 1e e8 ba 23 cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 a1 [ 76.656821][ T5071] RSP: 0018:ffffc900038d7ae8 EFLAGS: 00010293 [ 76.662968][ T5071] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8690c [ 76.671015][ T5071] RDX: ffff888016ab0000 RSI: ffffffff81b868e6 RDI: 0000000000000007 [ 76.678977][ T5071] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 76.686953][ T5071] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc900038d7b30 [ 76.695010][ T5071] R13: ffff888016ab0000 R14: dffffc0000000000 R15: 0000000000000000 [ 76.703058][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 76.714858][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.722234][ T5071] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 76.730474][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.738635][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.747068][ T5071] Kernel panic - not syncing: Fatal exception [ 76.753930][ T5071] Kernel Offset: disabled [ 76.758517][ T5071] Rebooting in 86400 seconds..