./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1976938573 <...> Warning: Permanently added '10.128.0.125' (ED25519) to the list of known hosts. execve("./syz-executor1976938573", ["./syz-executor1976938573"], 0x7ffd30c95560 /* 10 vars */) = 0 brk(NULL) = 0x555555e8d000 brk(0x555555e8dd00) = 0x555555e8dd00 arch_prctl(ARCH_SET_FS, 0x555555e8d380) = 0 set_tid_address(0x555555e8d650) = 5070 set_robust_list(0x555555e8d660, 24) = 0 rseq(0x555555e8dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1976938573", 4096) = 28 getrandom("\x71\xf0\x68\xe5\xf3\x1d\x73\x21", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555e8dd00 brk(0x555555eaed00) = 0x555555eaed00 brk(0x555555eaf000) = 0x555555eaf000 mprotect(0x7fdb06ff2000, 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 5071 attached , child_tidptr=0x555555e8d650) = 5071 [pid 5071] set_robust_list(0x555555e8d660, 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=0x200006c0, 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=-1, 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) = ? [ 73.088659][ T5071] BUG: unable to handle page fault for address: ffffffffff600000 [ 73.096404][ T5071] #PF: supervisor read access in kernel mode [ 73.102391][ T5071] #PF: error_code(0x0000) - not-present page [ 73.108377][ T5071] PGD df36067 P4D df36067 PUD df38067 PMD df5b067 PTE 0 [ 73.115341][ T5071] Oops: 0000 [#1] PREEMPT SMP KASAN PTI [ 73.120894][ T5071] CPU: 1 PID: 5071 Comm: syz-executor197 Not tainted 6.8.0-rc3-syzkaller-00142-g02d9009f4e8c #0 [ 73.131305][ T5071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 73.141361][ T5071] RIP: 0010:strncpy_from_kernel_nofault+0x8d/0x1d0 [ 73.147901][ T5071] Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d9 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28 [ 73.167532][ T5071] RSP: 0018:ffffc900041e7888 EFLAGS: 00010246 [ 73.173615][ T5071] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88801c795940 [ 73.181583][ T5071] RDX: ffffc900041e7900 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 73.189556][ T5071] RBP: dffffc0000000000 R08: ffffffff8141ebcd R09: 1ffffffff2591284 [ 73.197532][ T5071] R10: dffffc0000000000 R11: ffffffffa0001af0 R12: ffffffffff600000 [ 73.205512][ T5071] R13: 0000000000000005 R14: 0000000000000000 R15: ffffffffff600000 [ 73.213482][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 73.222406][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.229001][ T5071] CR2: ffffffffff600000 CR3: 000000000df32000 CR4: 00000000003506f0 [ 73.236971][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.244939][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.252907][ T5071] Call Trace: [ 73.256181][ T5071] [ 73.259122][ T5071] ? __die_body+0x8b/0xe0 [ 73.263455][ T5071] ? 0xffffffffff600000 [ 73.267609][ T5071] ? page_fault_oops+0x806/0xaa0 [ 73.272554][ T5071] ? 0xffffffffff600000 [ 73.276702][ T5071] ? __pfx_page_fault_oops+0x10/0x10 [ 73.281985][ T5071] ? mark_lock+0x9a/0x350 [ 73.286332][ T5071] ? __lock_acquire+0x1345/0x1fd0 [ 73.291363][ T5071] ? rcu_is_watching+0x15/0xb0 [ 73.296130][ T5071] ? 0xffffffffff600000 [ 73.300280][ T5071] ? exc_page_fault+0x5de/0x870 [ 73.305141][ T5071] ? 0xffffffffff600000 [ 73.309293][ T5071] ? asm_exc_page_fault+0x26/0x30 [ 73.314318][ T5071] ? 0xffffffffff600000 [ 73.318470][ T5071] ? 0xffffffffff600000 [ 73.322620][ T5071] ? 0xffffffffff600000 [ 73.326774][ T5071] ? 0xffffffffa0001af0 [ 73.330925][ T5071] ? copy_from_kernel_nofault_allowed+0x8d/0x100 [ 73.337252][ T5071] ? 0xffffffffff600000 [ 73.341398][ T5071] ? 0xffffffffff600000 [ 73.345546][ T5071] ? strncpy_from_kernel_nofault+0x8d/0x1d0 [ 73.351463][ T5071] ? strncpy_from_kernel_nofault+0x43/0x1d0 [ 73.357364][ T5071] ? 0xffffffffff600000 [ 73.361513][ T5071] bpf_probe_read_kernel_str+0x2a/0x70 [ 73.366976][ T5071] bpf_prog_ef3a4661c9d1378e+0x4a/0x4c [ 73.372448][ T5071] bpf_trace_run2+0x204/0x420 [ 73.377126][ T5071] ? bpf_trace_run2+0x114/0x420 [ 73.381975][ T5071] ? __pfx_bpf_trace_run2+0x10/0x10 [ 73.387171][ T5071] ? __vm_area_free+0x42/0x110 [ 73.391938][ T5071] ? __pfx___might_resched+0x10/0x10 [ 73.397223][ T5071] ? free_unref_page+0x18e/0x3f0 [ 73.402158][ T5071] ? __vm_area_free+0x42/0x110 [ 73.406950][ T5071] kfree+0x28e/0x380 [ 73.410848][ T5071] __vm_area_free+0x42/0x110 [ 73.415444][ T5071] exit_mmap+0x6a9/0xd40 [ 73.419698][ T5071] ? __pfx_exit_mmap+0x10/0x10 [ 73.424464][ T5071] ? __asan_memset+0x23/0x50 [ 73.429064][ T5071] ? uprobe_clear_state+0x277/0x290 [ 73.434256][ T5071] ? mm_update_next_owner+0x53b/0x660 [ 73.439632][ T5071] __mmput+0x115/0x3c0 [ 73.443709][ T5071] exit_mm+0x21f/0x310 [ 73.447785][ T5071] ? __pfx_exit_mm+0x10/0x10 [ 73.452387][ T5071] ? taskstats_exit+0x439/0xa00 [ 73.457248][ T5071] ? tty_audit_exit+0x154/0x200 [ 73.462111][ T5071] do_exit+0x9af/0x2740 [ 73.466271][ T5071] ? __pfx_do_exit+0x10/0x10 [ 73.470862][ T5071] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 73.476850][ T5071] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 73.483208][ T5071] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.488554][ T5071] ? lockdep_hardirqs_on+0x98/0x140 [ 73.493770][ T5071] do_group_exit+0x206/0x2c0 [ 73.498374][ T5071] __x64_sys_exit_group+0x3f/0x40 [ 73.503416][ T5071] do_syscall_64+0xf9/0x240 [ 73.507927][ T5071] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 73.513828][ T5071] RIP: 0033:0x7fdb06f7dc89 [ 73.518247][ T5071] Code: Unable to access opcode bytes at 0x7fdb06f7dc5f. [ 73.525264][ T5071] RSP: 002b:00007ffe2ffb5438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 73.533683][ T5071] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb06f7dc89 [ 73.541653][ T5071] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 73.549625][ T5071] RBP: 00007fdb06ff8290 R08: ffffffffffffffb8 R09: 0000000000000006 [ 73.557595][ T5071] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdb06ff8290 [ 73.565573][ T5071] R13: 0000000000000000 R14: 00007fdb06ff8ce0 R15: 00007fdb06f4eec0 [ 73.573565][ T5071] [ 73.576604][ T5071] Modules linked in: [ 73.580505][ T5071] CR2: ffffffffff600000 [ 73.584655][ T5071] ---[ end trace 0000000000000000 ]--- [ 73.590102][ T5071] RIP: 0010:strncpy_from_kernel_nofault+0x8d/0x1d0 [ 73.596612][ T5071] Code: 00 48 89 d0 48 c1 e8 03 48 89 44 24 10 0f b6 04 28 84 c0 48 89 14 24 0f 85 d9 00 00 00 ff 02 45 31 f6 49 89 df 48 8b 54 24 08 <42> 8a 1c 33 4a 8d 3c 32 48 89 f8 48 c1 e8 03 49 89 ec 0f b6 04 28 [ 73.616229][ T5071] RSP: 0018:ffffc900041e7888 EFLAGS: 00010246 [ 73.622309][ T5071] RAX: 0000000000000000 RBX: ffffffffff600000 RCX: ffff88801c795940 [ 73.630280][ T5071] RDX: ffffc900041e7900 RSI: ffffffffff600000 RDI: ffffffffff600000 [ 73.638252][ T5071] RBP: dffffc0000000000 R08: ffffffff8141ebcd R09: 1ffffffff2591284 [ 73.646220][ T5071] R10: dffffc0000000000 R11: ffffffffa0001af0 R12: ffffffffff600000 [ 73.654191][ T5071] R13: 0000000000000005 R14: 0000000000000000 R15: ffffffffff600000 [ 73.662168][ T5071] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 73.671102][ T5071] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.677686][ T5071] CR2: ffffffffff600000 CR3: 000000000df32000 CR4: 00000000003506f0 [ 73.685666][ T5071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.693634][ T5071] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.701612][ T5071] Kernel panic - not syncing: Fatal exception [ 73.707990][ T5071] Kernel Offset: disabled [ 73.712314][ T5071] Rebooting in 86400 seconds..