./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3588201101 <...> Warning: Permanently added '10.128.0.30' (ED25519) to the list of known hosts. execve("./syz-executor3588201101", ["./syz-executor3588201101"], 0x7ffd9fbc38d0 /* 10 vars */) = 0 brk(NULL) = 0x5555879cc000 brk(0x5555879ccd00) = 0x5555879ccd00 arch_prctl(ARCH_SET_FS, 0x5555879cc380) = 0 set_tid_address(0x5555879cc650) = 5837 set_robust_list(0x5555879cc660, 24) = 0 rseq(0x5555879ccca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3588201101", 4096) = 28 getrandom("\x34\x52\x81\xbb\xfd\xb5\xd1\x6c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555879ccd00 brk(0x5555879edd00) = 0x5555879edd00 brk(0x5555879ee000) = 0x5555879ee000 mprotect(0x7fb67ed56000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18executing program ) = 18 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_ARRAY, key_size=4, value_size=8, max_entries=1, map_flags=BPF_F_RDONLY_PROG, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 80) = 3 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 4 [ 81.929458][ T5837] ------------[ cut here ]------------ [ 81.935013][ T5837] verifier bug: add backedge: no SCC in verification path, insn_idx 9(1) [ 81.943675][ T5837] WARNING: CPU: 1 PID: 5837 at kernel/bpf/verifier.c:1970 do_check+0xda21/0xdba0 [ 81.952963][ T5837] Modules linked in: [ 81.956936][ T5837] CPU: 1 UID: 0 PID: 5837 Comm: syz-executor358 Not tainted 6.15.0-syzkaller-g1c66f4a3612c #0 PREEMPT(full) [ 81.968551][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 81.978809][ T5837] RIP: 0010:do_check+0xda21/0xdba0 [ 81.983948][ T5837] Code: 01 90 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 06 84 c0 0f 85 2b 01 00 00 41 8b 75 00 48 c7 c7 20 49 91 8b e8 d0 05 ad ff 90 <0f> 0b 90 90 e9 27 fe ff ff e8 11 5d e9 ff e8 3c 10 4d 00 ba 38 00 [ 82.003614][ T5837] RSP: 0018:ffffc900042feec0 EFLAGS: 00010246 [ 82.009763][ T5837] RAX: 3f4b5f48e20bea00 RBX: ffffc900042ff180 RCX: ffff888033869e00 [ 82.017811][ T5837] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 82.025825][ T5837] RBP: ffffc900042ff2c8 R08: ffffc900042febe7 R09: 1ffff9200085fd7c [ 82.033896][ T5837] R10: dffffc0000000000 R11: fffff5200085fd7d R12: ffff888023fd6600 [ 82.041959][ T5837] R13: ffff888023fd6654 R14: 1ffff110047facca R15: 0000000000000000 [ 82.050000][ T5837] FS: 00005555879cc380(0000) GS:ffff888125d54000(0000) knlGS:0000000000000000 [ 82.058974][ T5837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.065591][ T5837] CR2: 000055b4945a2448 CR3: 0000000073504000 CR4: 00000000003526f0 [ 82.073566][ T5837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.081603][ T5837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.089607][ T5837] Call Trace: [ 82.092908][ T5837] [ 82.095920][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.101173][ T5837] ? bpf_prog_load+0x1318/0x1930 [ 82.106150][ T5837] ? __x64_sys_bpf+0x7c/0x90 [ 82.110781][ T5837] ? __pfx_do_check+0x10/0x10 [ 82.115560][ T5837] ? __asan_memset+0x22/0x50 [ 82.120197][ T5837] do_check_common+0x18fa/0x2460 [ 82.125218][ T5837] bpf_check+0x110e2/0x1a240 [ 82.129868][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.134737][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.139706][ T5837] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 82.145686][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.150931][ T5837] ? __pfx_bpf_check+0x10/0x10 [ 82.155802][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.160727][ T5837] ? __pfx___mutex_trylock_common+0x10/0x10 [ 82.166682][ T5837] ? pcpu_block_update+0x437/0x8d0 [ 82.171833][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.176901][ T5837] ? ktime_get_with_offset+0x8c/0x2a0 [ 82.182306][ T5837] ? seqcount_lockdep_reader_access+0x123/0x1c0 [ 82.188613][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.193843][ T5837] ? ktime_get_with_offset+0x8c/0x2a0 [ 82.199284][ T5837] ? seqcount_lockdep_reader_access+0x175/0x1c0 [ 82.205572][ T5837] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 82.212175][ T5837] ? bpf_obj_name_cpy+0x194/0x1e0 [ 82.217272][ T5837] ? bpf_lsm_bpf_prog_load+0x9/0x20 [ 82.222534][ T5837] ? security_bpf_prog_load+0x7f/0x310 [ 82.228041][ T5837] bpf_prog_load+0x1318/0x1930 [ 82.232869][ T5837] ? __pfx_bpf_prog_load+0x10/0x10 [ 82.238073][ T5837] ? bpf_lsm_bpf+0x9/0x20 [ 82.242426][ T5837] ? security_bpf+0x7e/0x300 [ 82.247063][ T5837] __sys_bpf+0x5f1/0x860 [ 82.251329][ T5837] ? __pfx___sys_bpf+0x10/0x10 [ 82.256180][ T5837] ? rcu_is_watching+0x15/0xb0 [ 82.260963][ T5837] __x64_sys_bpf+0x7c/0x90 [ 82.265416][ T5837] do_syscall_64+0xfa/0x3b0 [ 82.269938][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.275212][ T5837] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.281302][ T5837] ? clear_bhb_loop+0x60/0xb0 [ 82.286045][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.291970][ T5837] RIP: 0033:0x7fb67ece3569 [ 82.296504][ T5837] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 82.316185][ T5837] RSP: 002b:00007ffe6e01ac58 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 82.324601][ T5837] RAX: ffffffffffffffda RBX: 00007ffe6e01ae28 RCX: 00007fb67ece3569 [ 82.332645][ T5837] RDX: 0000000000000094 RSI: 0000200000000840 RDI: 0000000000000005 [ 82.340687][ T5837] RBP: 00007fb67ed56610 R08: 00007ffe6e01ae28 R09: 00007ffe6e01ae28 [ 82.348725][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 82.356751][ T5837] R13: 00007ffe6e01ae18 R14: 0000000000000001 R15: 0000000000000001 [ 82.364792][ T5837] [ 82.367855][ T5837] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 82.375148][ T5837] CPU: 1 UID: 0 PID: 5837 Comm: syz-executor358 Not tainted 6.15.0-syzkaller-g1c66f4a3612c #0 PREEMPT(full) [ 82.386680][ T5837] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 82.396728][ T5837] Call Trace: [ 82.400004][ T5837] [ 82.402958][ T5837] dump_stack_lvl+0x99/0x250 [ 82.407552][ T5837] ? __asan_memcpy+0x40/0x70 [ 82.412144][ T5837] ? __pfx_dump_stack_lvl+0x10/0x10 [ 82.417354][ T5837] ? __pfx__printk+0x10/0x10 [ 82.421957][ T5837] panic+0x2db/0x790 [ 82.425866][ T5837] ? __pfx_panic+0x10/0x10 [ 82.430292][ T5837] ? show_trace_log_lvl+0x4fb/0x550 [ 82.435535][ T5837] __warn+0x31b/0x4b0 [ 82.439547][ T5837] ? do_check+0xda21/0xdba0 [ 82.444059][ T5837] ? do_check+0xda21/0xdba0 [ 82.448568][ T5837] report_bug+0x2be/0x4f0 [ 82.452911][ T5837] ? do_check+0xda21/0xdba0 [ 82.457451][ T5837] ? do_check+0xda21/0xdba0 [ 82.461987][ T5837] ? do_check+0xda23/0xdba0 [ 82.466511][ T5837] handle_bug+0x84/0x160 [ 82.470757][ T5837] exc_invalid_op+0x1a/0x50 [ 82.475276][ T5837] asm_exc_invalid_op+0x1a/0x20 [ 82.480132][ T5837] RIP: 0010:do_check+0xda21/0xdba0 [ 82.485255][ T5837] Code: 01 90 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 06 84 c0 0f 85 2b 01 00 00 41 8b 75 00 48 c7 c7 20 49 91 8b e8 d0 05 ad ff 90 <0f> 0b 90 90 e9 27 fe ff ff e8 11 5d e9 ff e8 3c 10 4d 00 ba 38 00 [ 82.504882][ T5837] RSP: 0018:ffffc900042feec0 EFLAGS: 00010246 [ 82.510973][ T5837] RAX: 3f4b5f48e20bea00 RBX: ffffc900042ff180 RCX: ffff888033869e00 [ 82.518943][ T5837] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 82.526914][ T5837] RBP: ffffc900042ff2c8 R08: ffffc900042febe7 R09: 1ffff9200085fd7c [ 82.534885][ T5837] R10: dffffc0000000000 R11: fffff5200085fd7d R12: ffff888023fd6600 [ 82.542864][ T5837] R13: ffff888023fd6654 R14: 1ffff110047facca R15: 0000000000000000 [ 82.550871][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.556108][ T5837] ? bpf_prog_load+0x1318/0x1930 [ 82.561076][ T5837] ? __x64_sys_bpf+0x7c/0x90 [ 82.565699][ T5837] ? __pfx_do_check+0x10/0x10 [ 82.570393][ T5837] ? __asan_memset+0x22/0x50 [ 82.575002][ T5837] do_check_common+0x18fa/0x2460 [ 82.579969][ T5837] bpf_check+0x110e2/0x1a240 [ 82.584594][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.589459][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.594329][ T5837] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 82.600224][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.605429][ T5837] ? __pfx_bpf_check+0x10/0x10 [ 82.610199][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.615064][ T5837] ? __pfx___mutex_trylock_common+0x10/0x10 [ 82.620963][ T5837] ? pcpu_block_update+0x437/0x8d0 [ 82.626096][ T5837] ? __lock_acquire+0xab9/0xd20 [ 82.630958][ T5837] ? ktime_get_with_offset+0x8c/0x2a0 [ 82.636339][ T5837] ? seqcount_lockdep_reader_access+0x123/0x1c0 [ 82.642592][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.647804][ T5837] ? ktime_get_with_offset+0x8c/0x2a0 [ 82.653176][ T5837] ? seqcount_lockdep_reader_access+0x175/0x1c0 [ 82.659423][ T5837] ? __pfx_seqcount_lockdep_reader_access+0x10/0x10 [ 82.666036][ T5837] ? bpf_obj_name_cpy+0x194/0x1e0 [ 82.671082][ T5837] ? bpf_lsm_bpf_prog_load+0x9/0x20 [ 82.676461][ T5837] ? security_bpf_prog_load+0x7f/0x310 [ 82.681939][ T5837] bpf_prog_load+0x1318/0x1930 [ 82.686734][ T5837] ? __pfx_bpf_prog_load+0x10/0x10 [ 82.691875][ T5837] ? bpf_lsm_bpf+0x9/0x20 [ 82.696212][ T5837] ? security_bpf+0x7e/0x300 [ 82.700829][ T5837] __sys_bpf+0x5f1/0x860 [ 82.705078][ T5837] ? __pfx___sys_bpf+0x10/0x10 [ 82.709865][ T5837] ? rcu_is_watching+0x15/0xb0 [ 82.714653][ T5837] __x64_sys_bpf+0x7c/0x90 [ 82.719110][ T5837] do_syscall_64+0xfa/0x3b0 [ 82.723624][ T5837] ? lockdep_hardirqs_on+0x9c/0x150 [ 82.728837][ T5837] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.734909][ T5837] ? clear_bhb_loop+0x60/0xb0 [ 82.739612][ T5837] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 82.745522][ T5837] RIP: 0033:0x7fb67ece3569 [ 82.749957][ T5837] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 82.769573][ T5837] RSP: 002b:00007ffe6e01ac58 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 82.777997][ T5837] RAX: ffffffffffffffda RBX: 00007ffe6e01ae28 RCX: 00007fb67ece3569 [ 82.785975][ T5837] RDX: 0000000000000094 RSI: 0000200000000840 RDI: 0000000000000005 [ 82.793948][ T5837] RBP: 00007fb67ed56610 R08: 00007ffe6e01ae28 R09: 00007ffe6e01ae28 [ 82.801928][ T5837] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 82.809906][ T5837] R13: 00007ffe6e01ae18 R14: 0000000000000001 R15: 0000000000000001 [ 82.817888][ T5837] [ 82.821258][ T5837] Kernel Offset: disabled [ 82.825608][ T5837] Rebooting in 86400 seconds..