./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4119437846 <...> Warning: Permanently added '10.128.1.32' (ED25519) to the list of known hosts. execve("./syz-executor4119437846", ["./syz-executor4119437846"], 0x7ffea389deb0 /* 10 vars */) = 0 brk(NULL) = 0x5555564e5000 brk(0x5555564e5d00) = 0x5555564e5d00 arch_prctl(ARCH_SET_FS, 0x5555564e5380) = 0 set_tid_address(0x5555564e5650) = 5067 set_robust_list(0x5555564e5660, 24) = 0 rseq(0x5555564e5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4119437846", 4096) = 28 getrandom("\x60\xb3\xa3\x11\xad\x2e\xec\xef", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555564e5d00 brk(0x555556506d00) = 0x555556506d00 brk(0x555556507000) = 0x555556507000 mprotect(0x7f6517012000, 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=0x5555564e5650) = 5068 ./strace-static-x86_64: Process 5068 attached [pid 5068] set_robust_list(0x5555564e5660, 24) = 0 [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setpgid(0, 0) = 0 [pid 5068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1000", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] 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 5068] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=3}}, 16) = 4 [pid 5068] exit_group(0) = ? [ 84.815154][ T5068] BUG: unable to handle page fault for address: ffffffffff600000 [ 84.822891][ T5068] #PF: supervisor read access in kernel mode [ 84.828943][ T5068] #PF: error_code(0x0000) - not-present page [ 84.834913][ T5068] PGD cd7a067 P4D cd7a067 PUD cd7c067 PMD cd9f067 PTE 0 [ 84.841875][ T5068] Oops: 0000 [#1] PREEMPT SMP KASAN [ 84.847152][ T5068] CPU: 0 PID: 5068 Comm: syz-executor411 Not tainted 6.6.0-syzkaller-15919-g81427a62a221 #0 [ 84.857216][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 84.867376][ T5068] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 84.873638][ T5068] 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 fa 1a cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 e1 [ 84.893236][ T5068] RSP: 0018:ffffc9000397fae8 EFLAGS: 00010293 [ 84.899298][ T5068] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b879dc [ 84.907266][ T5068] RDX: ffff88807c36bb80 RSI: ffffffff81b879b6 RDI: 0000000000000007 [ 84.915313][ T5068] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 84.923274][ T5068] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc9000397fb30 [ 84.931253][ T5068] R13: ffff88807c36bb80 R14: dffffc0000000000 R15: 0000000000000000 [ 84.939213][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 84.948139][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.954720][ T5068] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 84.962683][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.970661][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.978624][ T5068] Call Trace: [ 84.981892][ T5068] [ 84.984809][ T5068] ? show_regs+0x8f/0xa0 [ 84.989054][ T5068] ? __die+0x2c/0x80 [ 84.992951][ T5068] ? 0xffffffffff600000 [ 84.997097][ T5068] ? page_fault_oops+0x398/0xad0 [ 85.002025][ T5068] ? dump_pagetable+0x530/0x530 [ 85.006868][ T5068] ? hlock_class+0x4e/0x130 [ 85.011457][ T5068] ? __lock_acquire+0xc4d/0x3b10 [ 85.016388][ T5068] ? 0xffffffffff600000 [ 85.020524][ T5068] ? do_user_addr_fault+0x53d/0x1000 [ 85.025800][ T5068] ? irqentry_enter+0x2d/0x50 [ 85.030498][ T5068] ? rcu_is_watching+0x12/0xb0 [ 85.035249][ T5068] ? 0xffffffffff600000 [ 85.039389][ T5068] ? exc_page_fault+0x5d/0xc0 [ 85.044056][ T5068] ? asm_exc_page_fault+0x26/0x30 [ 85.049075][ T5068] ? 0xffffffffff600000 [ 85.053211][ T5068] ? copy_from_kernel_nofault+0xac/0x240 [ 85.058848][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 85.064491][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 85.070224][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 85.075849][ T5068] ? 0xffffffffff600000 [ 85.080005][ T5068] bpf_probe_read_kernel+0x26/0x70 [ 85.085121][ T5068] bpf_prog_bd8b22826c103b08+0x42/0x44 [ 85.090573][ T5068] bpf_trace_run2+0x14e/0x410 [ 85.095244][ T5068] ? __bpf_trace_bpf_trace_printk+0xd0/0xd0 [ 85.101126][ T5068] ? __vm_area_free+0x3e/0x140 [ 85.105878][ T5068] ? free_unref_page+0x1df/0x3b0 [ 85.110810][ T5068] kfree+0xec/0x150 [ 85.114610][ T5068] __vm_area_free+0x3e/0x140 [ 85.119188][ T5068] remove_vma+0x128/0x170 [ 85.123507][ T5068] exit_mmap+0x453/0xa70 [ 85.127739][ T5068] ? do_vma_munmap+0x70/0x70 [ 85.132327][ T5068] __mmput+0x12a/0x4d0 [ 85.136384][ T5068] mmput+0x62/0x70 [ 85.140090][ T5068] do_exit+0x9ad/0x2ae0 [ 85.144316][ T5068] ? do_group_exit+0x1c5/0x2a0 [ 85.149066][ T5068] ? reacquire_held_locks+0x4c0/0x4c0 [ 85.154439][ T5068] ? do_raw_spin_lock+0x12e/0x2b0 [ 85.159469][ T5068] ? mm_update_next_owner+0x840/0x840 [ 85.164824][ T5068] ? spin_bug+0x1d0/0x1d0 [ 85.169139][ T5068] do_group_exit+0xd4/0x2a0 [ 85.173646][ T5068] __x64_sys_exit_group+0x3e/0x50 [ 85.178672][ T5068] do_syscall_64+0x40/0x110 [ 85.183163][ T5068] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 85.189049][ T5068] RIP: 0033:0x7f6516f9cdc9 [ 85.193489][ T5068] Code: Unable to access opcode bytes at 0x7f6516f9cd9f. [ 85.200585][ T5068] RSP: 002b:00007ffec8fa6f28 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 85.208982][ T5068] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6516f9cdc9 [ 85.217024][ T5068] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 85.224989][ T5068] RBP: 00007f6517018290 R08: ffffffffffffffb8 R09: 0000000000000006 [ 85.233015][ T5068] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6517018290 [ 85.240975][ T5068] R13: 0000000000000000 R14: 00007f6517018ce0 R15: 00007f6516f6e030 [ 85.248958][ T5068] [ 85.252002][ T5068] Modules linked in: [ 85.255890][ T5068] CR2: ffffffffff600000 [ 85.260023][ T5068] ---[ end trace 0000000000000000 ]--- [ 85.265486][ T5068] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 85.271735][ T5068] 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 fa 1a cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 e1 [ 85.291421][ T5068] RSP: 0018:ffffc9000397fae8 EFLAGS: 00010293 [ 85.297475][ T5068] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b879dc [ 85.305432][ T5068] RDX: ffff88807c36bb80 RSI: ffffffff81b879b6 RDI: 0000000000000007 [ 85.313651][ T5068] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 85.321606][ T5068] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc9000397fb30 [ 85.329568][ T5068] R13: ffff88807c36bb80 R14: dffffc0000000000 R15: 0000000000000000 [ 85.337527][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 85.346476][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.353047][ T5068] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 85.361008][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.368969][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.376926][ T5068] Kernel panic - not syncing: Fatal exception [ 85.383111][ T5068] Kernel Offset: disabled [ 85.387420][ T5068] Rebooting in 86400 seconds..