ci-upstream-bpf-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-bpf-kasan-gce/syz-executor3335514560 <...> Warning: Permanently added '10.128.0.218' (ED25519) to the list of known hosts. execve("ci-upstream-bpf-kasan-gce/syz-executor3335514560", ["ci-upstream-bpf-kasan-gce/syz-executor3335514560"], 0x7ffcdcda8390 /* 10 vars */) = 0 brk(NULL) = 0x555564871000 brk(0x555564871d80) = 0x555564871d80 arch_prctl(ARCH_SET_FS, 0x555564871400) = 0 set_tid_address(0x5555648716d0) = 5629 set_robust_list(0x5555648716e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-bpf-kasan-gce/syz-executor3335514560", 4096) = 54 getrandom("\x31\x41\x61\xf7\x66\x03\xc4\xec", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564871d80 brk(0x555564892d80) = 0x555564892d80 brk(0x555564893000) = 0x555564893000 mprotect(0x7fe94ac21000, 20480, 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 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-bpf-kasan-gce/strace-static-x86_64: Process 5631 attached , child_tidptr=0x5555648716d0) = 5631 [pid 5631] set_robust_list(0x5555648716e0, 24) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] setpgid(0, 0) = 0 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5631] write(3, "1000", 4) = 4 [pid 5631] close(3) = 0 executing program [pid 5631] write(1, "executing program\n", 18) = 18 [pid 5631] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_HASH, key_size=4, value_size=8, max_entries=10, 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) = 3 [pid 5631] bpf(BPF_BTF_LOAD, {btf="\x9f\xeb\x01\x00\x18\x00\x00\x00\x00\x00\x00\x00\x34\x00\x00\x00\x34\x00\x00\x00\x0e\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x01\x04\x00\x00\x00\x20\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0d\x01\x00\x00\x00\x05\x00\x00\x00\x00\x00\x00\x0c\x02\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x0c\x02\x00\x00\x00\x00\x69\x6e\x74\x00\x6d\x61\x69\x6e\x00\x73\x00\x00\x00", btf_log_buf=NULL, btf_size=90, btf_log_size=0, btf_log_level=0, btf_log_true_size=0, btf_flags=0, btf_token_fd=0}, 40) = 4 [pid 5631] bpf(BPF_PROG_TEST_RUN, {test={prog_fd=-1, retval=0, data_size_in=5, data_size_out=0, data_in=0x200000000608, data_out=NULL, repeat=0, duration=0, ctx_size_in=0, ctx_size_out=0, ctx_in=NULL, ctx_out=NULL, flags=0, cpu=0, batch_size=0}}, 80) = -1 EBADF (Bad file descriptor) [ 85.028028][ T5631] ------------[ cut here ]------------ [ 85.033554][ T5631] verifier bug: backtracking misuse [ 85.038854][ T5631] WARNING: kernel/bpf/backtrack.c:829 at bpf_mark_chain_precision+0x571b/0x76b0, CPU#1: syz-executor333/5631 [ 85.050508][ T5631] Modules linked in: [ 85.054461][ T5631] CPU: 1 UID: 0 PID: 5631 Comm: syz-executor333 Not tainted syzkaller #0 PREEMPT(full) [ 85.064234][ T5631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 85.074369][ T5631] RIP: 0010:bpf_mark_chain_precision+0x571b/0x76b0 [ 85.080958][ T5631] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 16 ff ff ff 48 89 df e8 56 18 44 00 e9 09 ff ff ff e8 ac b9 d4 ff 48 8d 3d 55 3b 6a 0e <67> 48 0f b9 3a 48 8b 3c 24 48 81 c7 88 08 00 00 48 c7 c6 e0 c6 f6 [ 85.100771][ T5631] RSP: 0018:ffffc90003a87228 EFLAGS: 00010293 [ 85.106925][ T5631] RAX: ffffffff81f253b4 RBX: 0000000000000001 RCX: ffff88807e451f40 [ 85.114960][ T5631] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffffff905c8f10 [ 85.123018][ T5631] RBP: 0000000000000003 R08: ffff88807e451f40 R09: 0000000000000003 [ 85.131046][ T5631] R10: 0000000000000007 R11: 0000000000000000 R12: ffff888033de8050 [ 85.139156][ T5631] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 85.147201][ T5631] FS: 0000555564871400(0000) GS:ffff888125024000(0000) knlGS:0000000000000000 [ 85.156190][ T5631] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.162801][ T5631] CR2: 00000000006a9ee0 CR3: 000000007306c000 CR4: 00000000003526f0 [ 85.170856][ T5631] Call Trace: [ 85.174189][ T5631] [ 85.177235][ T5631] ? update_loop_inline_state+0x22a/0x610 [ 85.182988][ T5631] do_check_insn+0x13ac7/0x18d90 [ 85.188028][ T5631] ? __pfx_do_check_insn+0x10/0x10 [ 85.193185][ T5631] ? verbose+0x11d/0x1a0 [ 85.197506][ T5631] ? __pfx_bpf_verifier_log_write+0x10/0x10 [ 85.203434][ T5631] ? __pfx_verbose+0x10/0x10 [ 85.208078][ T5631] ? bpf_vlog_reset+0x2aa/0x340 [ 85.212985][ T5631] ? print_insn_state+0x106/0x170 [ 85.218103][ T5631] do_check_common+0x3c19/0x5d30 [ 85.223093][ T5631] ? __pfx_do_check_common+0x10/0x10 [ 85.228435][ T5631] ? __pfx_verbose+0x10/0x10 [ 85.233061][ T5631] ? __pfx_bpf_disasm_kfunc_name+0x10/0x10 [ 85.238968][ T5631] bpf_check+0x2639/0x2e10 [ 85.243440][ T5631] ? ktime_get_with_offset+0x93/0x2d0 [ 85.248914][ T5631] ? __pfx_bpf_check+0x10/0x10 [ 85.253716][ T5631] ? bpf_obj_name_cpy+0x194/0x1e0 [ 85.258826][ T5631] bpf_prog_load+0x14d6/0x1c20 [ 85.263643][ T5631] ? __pfx_bpf_prog_load+0x10/0x10 [ 85.268856][ T5631] __sys_bpf+0xd0d/0xd90 [ 85.273157][ T5631] ? __pfx___sys_bpf+0x10/0x10 [ 85.278024][ T5631] ? do_raw_spin_lock+0x12b/0x2f0 [ 85.283146][ T5631] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 85.288633][ T5631] ? __pfx_ptrace_notify+0x10/0x10 [ 85.293802][ T5631] __x64_sys_bpf+0xba/0xd0 [ 85.298298][ T5631] do_syscall_64+0x166/0x520 [ 85.302932][ T5631] ? trace_irq_disable+0x3b/0x140 [ 85.308070][ T5631] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.314199][ T5631] ? clear_bhb_loop+0x70/0xc0 [ 85.318977][ T5631] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.324921][ T5631] RIP: 0033:0x7fe94ab8e749 [ 85.329405][ T5631] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 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 d8 ff ff ff f7 d8 64 89 01 48 [ 85.349111][ T5631] RSP: 002b:00007ffc89b6f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 85.357594][ T5631] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe94ab8e749 [ 85.365596][ T5631] RDX: 0000000000000080 RSI: 0000200000000300 RDI: 0000000000000005 [ 85.373657][ T5631] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 85.381712][ T5631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.389761][ T5631] R13: 0000000000000000 R14: 00007fe94ac21c40 R15: 0000000000000002 [ 85.397828][ T5631] [ 85.400854][ T5631] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 85.408131][ T5631] CPU: 1 UID: 0 PID: 5631 Comm: syz-executor333 Not tainted syzkaller #0 PREEMPT(full) [ 85.417866][ T5631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 85.427926][ T5631] Call Trace: [ 85.431235][ T5631] [ 85.434189][ T5631] vpanic+0x56d/0xa60 [ 85.438224][ T5631] ? __pfx__printk+0x10/0x10 [ 85.443638][ T5631] ? __pfx_vpanic+0x10/0x10 [ 85.448196][ T5631] ? is_bpf_text_address+0x292/0x2b0 [ 85.453534][ T5631] ? is_bpf_text_address+0x26/0x2b0 [ 85.458774][ T5631] panic+0xc5/0xd0 [ 85.462535][ T5631] ? __pfx_panic+0x10/0x10 [ 85.466989][ T5631] __warn+0x315/0x4c0 [ 85.471024][ T5631] ? bpf_mark_chain_precision+0x571b/0x76b0 [ 85.476953][ T5631] ? bpf_mark_chain_precision+0x571b/0x76b0 [ 85.482871][ T5631] __report_bug+0x276/0x570 [ 85.487416][ T5631] ? bpf_mark_chain_precision+0x571b/0x76b0 [ 85.493332][ T5631] ? __pfx___report_bug+0x10/0x10 [ 85.498378][ T5631] ? number+0xc60/0xed0 [ 85.502572][ T5631] ? __pfx_number+0x10/0x10 [ 85.507114][ T5631] report_bug_entry+0x19b/0x290 [ 85.511993][ T5631] ? bpf_mark_chain_precision+0x571b/0x76b0 [ 85.517914][ T5631] ? bpf_mark_chain_precision+0x5720/0x76b0 [ 85.523830][ T5631] handle_bug+0xce/0x200 [ 85.528092][ T5631] exc_invalid_op+0x1a/0x50 [ 85.532614][ T5631] asm_exc_invalid_op+0x1a/0x20 [ 85.537472][ T5631] RIP: 0010:bpf_mark_chain_precision+0x571b/0x76b0 [ 85.543997][ T5631] Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 16 ff ff ff 48 89 df e8 56 18 44 00 e9 09 ff ff ff e8 ac b9 d4 ff 48 8d 3d 55 3b 6a 0e <67> 48 0f b9 3a 48 8b 3c 24 48 81 c7 88 08 00 00 48 c7 c6 e0 c6 f6 [ 85.563617][ T5631] RSP: 0018:ffffc90003a87228 EFLAGS: 00010293 [ 85.569699][ T5631] RAX: ffffffff81f253b4 RBX: 0000000000000001 RCX: ffff88807e451f40 [ 85.577675][ T5631] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffffff905c8f10 [ 85.585655][ T5631] RBP: 0000000000000003 R08: ffff88807e451f40 R09: 0000000000000003 [ 85.593637][ T5631] R10: 0000000000000007 R11: 0000000000000000 R12: ffff888033de8050 [ 85.601642][ T5631] R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000 [ 85.609635][ T5631] ? bpf_mark_chain_precision+0x5714/0x76b0 [ 85.615555][ T5631] ? bpf_mark_chain_precision+0x5714/0x76b0 [ 85.621500][ T5631] ? update_loop_inline_state+0x22a/0x610 [ 85.627243][ T5631] do_check_insn+0x13ac7/0x18d90 [ 85.632218][ T5631] ? __pfx_do_check_insn+0x10/0x10 [ 85.637398][ T5631] ? verbose+0x11d/0x1a0 [ 85.641665][ T5631] ? __pfx_bpf_verifier_log_write+0x10/0x10 [ 85.647601][ T5631] ? __pfx_verbose+0x10/0x10 [ 85.652217][ T5631] ? bpf_vlog_reset+0x2aa/0x340 [ 85.657089][ T5631] ? print_insn_state+0x106/0x170 [ 85.662170][ T5631] do_check_common+0x3c19/0x5d30 [ 85.667180][ T5631] ? __pfx_do_check_common+0x10/0x10 [ 85.672520][ T5631] ? __pfx_verbose+0x10/0x10 [ 85.677129][ T5631] ? __pfx_bpf_disasm_kfunc_name+0x10/0x10 [ 85.682967][ T5631] bpf_check+0x2639/0x2e10 [ 85.687445][ T5631] ? ktime_get_with_offset+0x93/0x2d0 [ 85.692852][ T5631] ? __pfx_bpf_check+0x10/0x10 [ 85.697636][ T5631] ? bpf_obj_name_cpy+0x194/0x1e0 [ 85.702704][ T5631] bpf_prog_load+0x14d6/0x1c20 [ 85.707503][ T5631] ? __pfx_bpf_prog_load+0x10/0x10 [ 85.712647][ T5631] __sys_bpf+0xd0d/0xd90 [ 85.716911][ T5631] ? __pfx___sys_bpf+0x10/0x10 [ 85.721696][ T5631] ? do_raw_spin_lock+0x12b/0x2f0 [ 85.726754][ T5631] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 85.732189][ T5631] ? __pfx_ptrace_notify+0x10/0x10 [ 85.737351][ T5631] __x64_sys_bpf+0xba/0xd0 [ 85.741814][ T5631] do_syscall_64+0x166/0x520 [ 85.746442][ T5631] ? trace_irq_disable+0x3b/0x140 [ 85.751519][ T5631] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.757620][ T5631] ? clear_bhb_loop+0x70/0xc0 [ 85.762334][ T5631] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.768267][ T5631] RIP: 0033:0x7fe94ab8e749 [ 85.772697][ T5631] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 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 d8 ff ff ff f7 d8 64 89 01 48 [ 85.792331][ T5631] RSP: 002b:00007ffc89b6f218 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 85.800796][ T5631] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe94ab8e749 [ 85.808820][ T5631] RDX: 0000000000000080 RSI: 0000200000000300 RDI: 0000000000000005 [ 85.816819][ T5631] RBP: 0000000000000000 R08: 0000000000000006 R09: 0000000000000006 [ 85.824808][ T5631] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.832804][ T5631] R13: 0000000000000000 R14: 00007fe94ac21c40 R15: 0000000000000002 [ 85.840813][ T5631] [ 85.844453][ T5631] Kernel Offset: disabled [ 85.848816][ T5631] Rebooting in 86400 seconds..