./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2180759771 <...> Warning: Permanently added '10.128.1.87' (ED25519) to the list of known hosts. execve("./syz-executor2180759771", ["./syz-executor2180759771"], 0x7fff7f402560 /* 10 vars */) = 0 brk(NULL) = 0x555555d84000 brk(0x555555d84d00) = 0x555555d84d00 arch_prctl(ARCH_SET_FS, 0x555555d84380) = 0 set_tid_address(0x555555d84650) = 5066 set_robust_list(0x555555d84660, 24) = 0 rseq(0x555555d84ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2180759771", 4096) = 28 getrandom("\x18\x22\x03\x8d\x6f\x0e\x99\x00", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555d84d00 brk(0x555555da5d00) = 0x555555da5d00 brk(0x555555da6000) = 0x555555da6000 mprotect(0x7f2c1cbb5000, 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./strace-static-x86_64: Process 5067 attached , child_tidptr=0x555555d84650) = 5067 [pid 5067] set_robust_list(0x555555d84660, 24) = 0 [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setpgid(0, 0) = 0 [pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1000", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] 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 5067] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=3}}, 16) = 4 [pid 5067] exit_group(0) = ? [ 72.599435][ T5067] BUG: unable to handle page fault for address: ffffffffff600000 [ 72.607166][ T5067] #PF: supervisor read access in kernel mode [ 72.613127][ T5067] #PF: error_code(0x0000) - not-present page [ 72.619085][ T5067] PGD cd7a067 P4D cd7a067 PUD cd7c067 PMD cd9f067 PTE 0 [ 72.626025][ T5067] Oops: 0000 [#1] PREEMPT SMP KASAN [ 72.631229][ T5067] CPU: 1 PID: 5067 Comm: syz-executor218 Not tainted 6.6.0-syzkaller-15860-g8fedaaca4071 #0 [ 72.641278][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 72.651326][ T5067] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 72.657588][ T5067] 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 2a cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 a1 [ 72.677190][ T5067] RSP: 0018:ffffc90003a2fae8 EFLAGS: 00010293 [ 72.683250][ T5067] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8620c [ 72.691214][ T5067] RDX: ffff888014f03b80 RSI: ffffffff81b861e6 RDI: 0000000000000007 [ 72.699180][ T5067] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 72.707143][ T5067] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc90003a2fb30 [ 72.715112][ T5067] R13: ffff888014f03b80 R14: dffffc0000000000 R15: 0000000000000000 [ 72.723074][ T5067] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 72.732002][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.738585][ T5067] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 72.746555][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.754520][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.762484][ T5067] Call Trace: [ 72.765771][ T5067] [ 72.768727][ T5067] ? show_regs+0x8f/0xa0 [ 72.772971][ T5067] ? __die+0x2c/0x80 [ 72.776863][ T5067] ? 0xffffffffff600000 [ 72.781006][ T5067] ? page_fault_oops+0x398/0xad0 [ 72.785942][ T5067] ? dump_pagetable+0x530/0x530 [ 72.790802][ T5067] ? hlock_class+0x4e/0x130 [ 72.795309][ T5067] ? __lock_acquire+0xc4d/0x3b10 [ 72.800259][ T5067] ? 0xffffffffff600000 [ 72.804404][ T5067] ? do_user_addr_fault+0x53d/0x1000 [ 72.809684][ T5067] ? irqentry_enter+0x2d/0x50 [ 72.814375][ T5067] ? rcu_is_watching+0x12/0xb0 [ 72.819136][ T5067] ? 0xffffffffff600000 [ 72.823279][ T5067] ? exc_page_fault+0x5d/0xc0 [ 72.827960][ T5067] ? asm_exc_page_fault+0x26/0x30 [ 72.832990][ T5067] ? 0xffffffffff600000 [ 72.837135][ T5067] ? copy_from_kernel_nofault+0xac/0x240 [ 72.842767][ T5067] ? copy_from_kernel_nofault+0x86/0x240 [ 72.848404][ T5067] ? copy_from_kernel_nofault+0x86/0x240 [ 72.854037][ T5067] ? copy_from_kernel_nofault+0x86/0x240 [ 72.859669][ T5067] ? 0xffffffffff600000 [ 72.863814][ T5067] bpf_probe_read_kernel+0x26/0x70 [ 72.868931][ T5067] bpf_prog_bd8b22826c103b08+0x42/0x44 [ 72.874386][ T5067] bpf_trace_run2+0x14e/0x410 [ 72.879058][ T5067] ? __bpf_trace_bpf_trace_printk+0xd0/0xd0 [ 72.884945][ T5067] ? __vm_area_free+0x3e/0x140 [ 72.889706][ T5067] ? free_unref_page+0x1df/0x3b0 [ 72.894645][ T5067] kfree+0xec/0x150 [ 72.898455][ T5067] __vm_area_free+0x3e/0x140 [ 72.903043][ T5067] remove_vma+0x128/0x170 [ 72.907371][ T5067] exit_mmap+0x453/0xa70 [ 72.911610][ T5067] ? do_vma_munmap+0x70/0x70 [ 72.916208][ T5067] __mmput+0x12a/0x4d0 [ 72.920273][ T5067] mmput+0x62/0x70 [ 72.923992][ T5067] do_exit+0x9ad/0x2ae0 [ 72.928144][ T5067] ? do_group_exit+0x1c5/0x2a0 [ 72.932905][ T5067] ? reacquire_held_locks+0x4c0/0x4c0 [ 72.938278][ T5067] ? do_raw_spin_lock+0x12e/0x2b0 [ 72.943298][ T5067] ? mm_update_next_owner+0x840/0x840 [ 72.948662][ T5067] ? spin_bug+0x1d0/0x1d0 [ 72.952990][ T5067] do_group_exit+0xd4/0x2a0 [ 72.957490][ T5067] __x64_sys_exit_group+0x3e/0x50 [ 72.962517][ T5067] do_syscall_64+0x40/0x110 [ 72.967037][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 72.972953][ T5067] RIP: 0033:0x7f2c1cb3fdc9 [ 72.977368][ T5067] Code: Unable to access opcode bytes at 0x7f2c1cb3fd9f. [ 72.984375][ T5067] RSP: 002b:00007ffcac59edd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 72.992784][ T5067] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2c1cb3fdc9 [ 73.000749][ T5067] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 73.008718][ T5067] RBP: 00007f2c1cbbb290 R08: ffffffffffffffb8 R09: 0000000000000006 [ 73.016685][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2c1cbbb290 [ 73.024655][ T5067] R13: 0000000000000000 R14: 00007f2c1cbbbce0 R15: 00007f2c1cb11030 [ 73.032630][ T5067] [ 73.035638][ T5067] Modules linked in: [ 73.039523][ T5067] CR2: ffffffffff600000 [ 73.043664][ T5067] ---[ end trace 0000000000000000 ]--- [ 73.049109][ T5067] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 73.055357][ T5067] 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 2a cf ff <48> 8b 45 00 49 89 04 24 48 83 c5 08 49 83 c4 08 48 83 eb 08 e8 a1 [ 73.074970][ T5067] RSP: 0018:ffffc90003a2fae8 EFLAGS: 00010293 [ 73.081041][ T5067] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8620c [ 73.089015][ T5067] RDX: ffff888014f03b80 RSI: ffffffff81b861e6 RDI: 0000000000000007 [ 73.096998][ T5067] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 73.104973][ T5067] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc90003a2fb30 [ 73.112947][ T5067] R13: ffff888014f03b80 R14: dffffc0000000000 R15: 0000000000000000 [ 73.120912][ T5067] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 73.129842][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.136421][ T5067] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 73.144387][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.152349][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.160317][ T5067] Kernel panic - not syncing: Fatal exception [ 73.166445][ T5067] Kernel Offset: disabled [ 73.170764][ T5067] Rebooting in 86400 seconds..