./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1165806904 <...> Warning: Permanently added '10.128.0.145' (ED25519) to the list of known hosts. execve("./syz-executor1165806904", ["./syz-executor1165806904"], 0x7ffddba2ea70 /* 10 vars */) = 0 brk(NULL) = 0x5555558d6000 brk(0x5555558d6d00) = 0x5555558d6d00 arch_prctl(ARCH_SET_FS, 0x5555558d6380) = 0 set_tid_address(0x5555558d6650) = 5068 set_robust_list(0x5555558d6660, 24) = 0 rseq(0x5555558d6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1165806904", 4096) = 28 getrandom("\x5c\x15\xe7\x26\xe3\xca\xea\x60", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555558d6d00 brk(0x5555558f7d00) = 0x5555558f7d00 brk(0x5555558f8000) = 0x5555558f8000 mprotect(0x7fcff1e3d000, 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 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 bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=3}}, 16) = 4 exit_group(0) = ? [ 71.544859][ T5068] BUG: unable to handle page fault for address: ffffffffff600000 [ 71.552588][ T5068] #PF: supervisor read access in kernel mode [ 71.558565][ T5068] #PF: error_code(0x0000) - not-present page [ 71.564522][ T5068] PGD cd7a067 P4D cd7a067 PUD cd7c067 PMD cd9f067 PTE 0 [ 71.571453][ T5068] Oops: 0000 [#1] PREEMPT SMP KASAN [ 71.576632][ T5068] CPU: 0 PID: 5068 Comm: syz-executor116 Not tainted 6.6.0-syzkaller-15913-g674e31808946 #0 [ 71.586674][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 71.596800][ T5068] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 71.603057][ 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 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 [ 71.622663][ T5068] RSP: 0018:ffffc9000397fae8 EFLAGS: 00010293 [ 71.628721][ T5068] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8620c [ 71.636682][ T5068] RDX: ffff8880770fbb80 RSI: ffffffff81b861e6 RDI: 0000000000000007 [ 71.644662][ T5068] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 71.652622][ T5068] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc9000397fb30 [ 71.660581][ T5068] R13: ffff8880770fbb80 R14: dffffc0000000000 R15: 0000000000000000 [ 71.668544][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 71.677466][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.684040][ T5068] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 71.692001][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.700049][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.708009][ T5068] Call Trace: [ 71.711281][ T5068] [ 71.714202][ T5068] ? show_regs+0x8f/0xa0 [ 71.718460][ T5068] ? __die+0x2c/0x80 [ 71.722358][ T5068] ? 0xffffffffff600000 [ 71.726501][ T5068] ? page_fault_oops+0x398/0xad0 [ 71.731439][ T5068] ? dump_pagetable+0x530/0x530 [ 71.736287][ T5068] ? hlock_class+0x4e/0x130 [ 71.740794][ T5068] ? __lock_acquire+0xc4d/0x3b10 [ 71.745739][ T5068] ? 0xffffffffff600000 [ 71.749886][ T5068] ? do_user_addr_fault+0x53d/0x1000 [ 71.755168][ T5068] ? irqentry_enter+0x2d/0x50 [ 71.759859][ T5068] ? rcu_is_watching+0x12/0xb0 [ 71.764628][ T5068] ? 0xffffffffff600000 [ 71.768770][ T5068] ? exc_page_fault+0x5d/0xc0 [ 71.773448][ T5068] ? asm_exc_page_fault+0x26/0x30 [ 71.778511][ T5068] ? 0xffffffffff600000 [ 71.782661][ T5068] ? copy_from_kernel_nofault+0xac/0x240 [ 71.788297][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 71.793935][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 71.799572][ T5068] ? copy_from_kernel_nofault+0x86/0x240 [ 71.805205][ T5068] ? 0xffffffffff600000 [ 71.809351][ T5068] bpf_probe_read_kernel+0x26/0x70 [ 71.814466][ T5068] bpf_prog_bd8b22826c103b08+0x42/0x44 [ 71.819919][ T5068] bpf_trace_run2+0x14e/0x410 [ 71.824592][ T5068] ? __bpf_trace_bpf_trace_printk+0xd0/0xd0 [ 71.830476][ T5068] ? __vm_area_free+0x3e/0x140 [ 71.835337][ T5068] ? free_unref_page+0x1df/0x3b0 [ 71.840289][ T5068] kfree+0xec/0x150 [ 71.844126][ T5068] __vm_area_free+0x3e/0x140 [ 71.848717][ T5068] remove_vma+0x128/0x170 [ 71.853045][ T5068] exit_mmap+0x453/0xa70 [ 71.857287][ T5068] ? do_vma_munmap+0x70/0x70 [ 71.861897][ T5068] __mmput+0x12a/0x4d0 [ 71.865971][ T5068] mmput+0x62/0x70 [ 71.869690][ T5068] do_exit+0x9ad/0x2ae0 [ 71.873839][ T5068] ? do_group_exit+0x1c5/0x2a0 [ 71.878594][ T5068] ? reacquire_held_locks+0x4c0/0x4c0 [ 71.883968][ T5068] ? do_raw_spin_lock+0x12e/0x2b0 [ 71.888985][ T5068] ? mm_update_next_owner+0x840/0x840 [ 71.894352][ T5068] ? spin_bug+0x1d0/0x1d0 [ 71.898675][ T5068] do_group_exit+0xd4/0x2a0 [ 71.903175][ T5068] __x64_sys_exit_group+0x3e/0x50 [ 71.908197][ T5068] do_syscall_64+0x40/0x110 [ 71.912700][ T5068] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 71.918595][ T5068] RIP: 0033:0x7fcff1dc8f39 [ 71.923004][ T5068] Code: Unable to access opcode bytes at 0x7fcff1dc8f0f. [ 71.930007][ T5068] RSP: 002b:00007ffd4fd66dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 71.938496][ T5068] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcff1dc8f39 [ 71.946458][ T5068] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 71.954422][ T5068] RBP: 00007fcff1e43270 R08: ffffffffffffffb8 R09: 00007ffd4fd66ff8 [ 71.962423][ T5068] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcff1e43270 [ 71.970385][ T5068] R13: 0000000000000000 R14: 00007fcff1e43cc0 R15: 00007fcff1d9ad00 [ 71.978353][ T5068] [ 71.981361][ T5068] Modules linked in: [ 71.985242][ T5068] CR2: ffffffffff600000 [ 71.989408][ T5068] ---[ end trace 0000000000000000 ]--- [ 71.994845][ T5068] RIP: 0010:copy_from_kernel_nofault+0x86/0x240 [ 72.001113][ 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 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 [ 72.020724][ T5068] RSP: 0018:ffffc9000397fae8 EFLAGS: 00010293 [ 72.026793][ T5068] RAX: 0000000000000000 RBX: 0000000000000008 RCX: ffffffff81b8620c [ 72.034769][ T5068] RDX: ffff8880770fbb80 RSI: ffffffff81b861e6 RDI: 0000000000000007 [ 72.042738][ T5068] RBP: ffffffffff600000 R08: 0000000000000007 R09: 0000000000000007 [ 72.050702][ T5068] R10: 0000000000000008 R11: 0000000000000001 R12: ffffc9000397fb30 [ 72.058665][ T5068] R13: ffff8880770fbb80 R14: dffffc0000000000 R15: 0000000000000000 [ 72.066627][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 72.075552][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.082125][ T5068] CR2: ffffffffff600000 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 72.090090][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.098050][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.106015][ T5068] Kernel panic - not syncing: Fatal exception [ 72.112230][ T5068] Kernel Offset: disabled [ 72.116534][ T5068] Rebooting in 86400 seconds..