./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3226087184 <...> Warning: Permanently added '10.128.0.190' (ED25519) to the list of known hosts. execve("./syz-executor3226087184", ["./syz-executor3226087184"], 0x7fff888ce740 /* 10 vars */) = 0 brk(NULL) = 0x555563545000 brk(0x555563545d00) = 0x555563545d00 arch_prctl(ARCH_SET_FS, 0x555563545380) = 0 set_tid_address(0x555563545650) = 5017 set_robust_list(0x555563545660, 24) = 0 rseq(0x555563545ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3226087184", 4096) = 28 getrandom("\x00\x38\xd2\x66\xe5\x28\x59\x16", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563545d00 brk(0x555563566d00) = 0x555563566d00 brk(0x555563567000) = 0x555563567000 mprotect(0x7f3ef97e1000, 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, child_tidptr=0x555563545650) = 5018 ./strace-static-x86_64: Process 5018 attached [pid 5018] set_robust_list(0x555563545660, 24) = 0 [pid 5018] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5018] setpgid(0, 0) = 0 [pid 5018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5018] write(3, "1000", 4) = 4 [pid 5018] close(3) = 0 [pid 5018] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=8, max_entries=8, map_flags=BPF_F_NO_PREALLOC|BPF_F_NUMA_NODE, inner_map_fd=-1, numa_node=0, 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}, 72) = 3 [pid 5018] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000300, license="syzkaller", 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) = 4 [pid 5018] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5018] exit_group(0) = ? [pid 5018] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5018, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5019 attached , child_tidptr=0x555563545650) = 5019 [pid 5019] set_robust_list(0x555563545660, 24) = 0 [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setpgid(0, 0) = 0 [pid 5019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1000", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=8, max_entries=8, map_flags=BPF_F_NO_PREALLOC|BPF_F_NUMA_NODE, inner_map_fd=-1, numa_node=0, 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}, 72) = 3 [pid 5019] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000300, license="syzkaller", 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) = 4 [pid 5019] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="kfree", prog_fd=4}}, 16) = 5 [pid 5019] exit_group(0) = ? [pid 5019] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5019, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555563545650) = 5020 ./strace-static-x86_64: Process 5020 attached [pid 5020] set_robust_list(0x555563545660, 24) = 0 [pid 5020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5020] setpgid(0, 0) = 0 [pid 5020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 155.841970][ T7] ===================================================== [ 155.849407][ T7] BUG: KMSAN: uninit-value in trie_delete_elem+0xc0/0xbe0 [ 155.857129][ T7] trie_delete_elem+0xc0/0xbe0 [ 155.862367][ T7] bpf_map_delete_elem+0x5c/0x80 [ 155.867520][ T7] ___bpf_prog_run+0x13fe/0xe0f0 [ 155.873962][ T7] __bpf_prog_run96+0xb5/0xe0 [ 155.879030][ T7] bpf_trace_run2+0x116/0x300 [ 155.885303][ T7] __bpf_trace_kfree+0x29/0x40 [pid 5020] write(3, "1000", 4) = 4 [pid 5020] close(3) = 0 [pid 5020] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=8, max_entries=8, map_flags=BPF_F_NO_PREALLOC|BPF_F_NUMA_NODE, inner_map_fd=-1, numa_node=0, 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}, 72) = 3 [pid 5020] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=13, insns=0x20000300, license="syzkaller", 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) = 4 [ 155.890323][ T7] kfree+0x6a5/0xa30 [ 155.894730][ T7] bpf_prog_free_deferred+0x390/0xc70 [ 155.900460][ T7] process_scheduled_works+0xa81/0x1bd0 [ 155.906401][ T7] worker_thread+0xea5/0x1560 [ 155.911772][ T7] kthread+0x3e2/0x540 [ 155.916160][ T7] ret_from_fork+0x6d/0x90 [ 155.920943][ T7] ret_from_fork_asm+0x1a/0x30 [ 155.926465][ T7] [ 155.928985][ T7] Local variable stack created at: [ 155.934430][ T7] __bpf_prog_run96+0x45/0xe0 [ 155.939551][ T7] bpf_trace_run2+0x116/0x300 [ 155.944579][ T7] [ 155.947019][ T7] CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.9.0-rc1-syzkaller-00178-g317c7bc0ef03 #0 [ 155.957301][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 155.967769][ T7] Workqueue: events bpf_prog_free_deferred [ 155.974104][ T7] ===================================================== [ 155.981258][ T7] Disabling lock debugging due to kernel taint [ 155.987740][ T7] Kernel panic - not syncing: kmsan.panic set ... [ 155.994308][ T7] CPU: 0 PID: 7 Comm: kworker/0:0 Tainted: G B 6.9.0-rc1-syzkaller-00178-g317c7bc0ef03 #0 [ 156.005960][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 156.016289][ T7] Workqueue: events bpf_prog_free_deferred [ 156.022314][ T7] Call Trace: [ 156.025693][ T7] [ 156.028692][ T7] dump_stack_lvl+0x216/0x2d0 [ 156.033637][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.039994][ T7] dump_stack+0x1e/0x30 [ 156.044509][ T7] panic+0x4e2/0xcd0 [ 156.049072][ T7] ? kmsan_get_metadata+0xc1/0x1d0 [ 156.054625][ T7] kmsan_report+0x2d5/0x2e0 [ 156.059681][ T7] ? __rb_insert_augmented+0x9e/0x10e0 [ 156.065501][ T7] ? __msan_warning+0x95/0x120 [ 156.070760][ T7] ? trie_delete_elem+0xc0/0xbe0 [ 156.076459][ T7] ? bpf_map_delete_elem+0x5c/0x80 [ 156.083196][ T7] ? ___bpf_prog_run+0x13fe/0xe0f0 [ 156.089209][ T7] ? __bpf_prog_run96+0xb5/0xe0 [ 156.094467][ T7] ? bpf_trace_run2+0x116/0x300 [ 156.099969][ T7] ? __bpf_trace_kfree+0x29/0x40 [ 156.105355][ T7] ? kfree+0x6a5/0xa30 [ 156.109945][ T7] ? bpf_prog_free_deferred+0x390/0xc70 [ 156.115856][ T7] ? process_scheduled_works+0xa81/0x1bd0 [ 156.121839][ T7] ? worker_thread+0xea5/0x1560 [ 156.126869][ T7] ? kthread+0x3e2/0x540 [ 156.131434][ T7] ? ret_from_fork+0x6d/0x90 [ 156.136257][ T7] ? ret_from_fork_asm+0x1a/0x30 [ 156.141442][ T7] ? __enqueue_entity+0x760/0x820 [ 156.146810][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.152393][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.158481][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.164552][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.170713][ T7] ? pick_eevdf+0x56a/0x13e0 [ 156.175798][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.181214][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.187452][ T7] __msan_warning+0x95/0x120 [ 156.192401][ T7] trie_delete_elem+0xc0/0xbe0 [ 156.197415][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.203060][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.208635][ T7] ? __pfx_trie_delete_elem+0x10/0x10 [ 156.214384][ T7] bpf_map_delete_elem+0x5c/0x80 [ 156.219602][ T7] ___bpf_prog_run+0x13fe/0xe0f0 [ 156.225022][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.230446][ T7] __bpf_prog_run96+0xb5/0xe0 [ 156.235267][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.241319][ T7] ? __pfx___bpf_prog_run96+0x10/0x10 [ 156.247207][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.253327][ T7] ? __pfx___bpf_prog_run96+0x10/0x10 [ 156.259105][ T7] bpf_trace_run2+0x116/0x300 [ 156.264467][ T7] ? bpf_prog_free_deferred+0x390/0xc70 [ 156.270984][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.276698][ T7] ? bpf_prog_free_deferred+0x390/0xc70 [ 156.282773][ T7] ? bpf_prog_free_deferred+0x390/0xc70 [ 156.288705][ T7] __bpf_trace_kfree+0x29/0x40 [ 156.294511][ T7] kfree+0x6a5/0xa30 [ 156.298829][ T7] ? kmsan_get_metadata+0x146/0x1d0 [ 156.304185][ T7] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.310639][ T7] bpf_prog_free_deferred+0x390/0xc70 [ 156.316500][ T7] ? __pfx_bpf_prog_free_deferred+0x10/0x10 [ 156.322808][ T7] process_scheduled_works+0xa81/0x1bd0 [ 156.329253][ T7] worker_thread+0xea5/0x1560 [ 156.334390][ T7] kthread+0x3e2/0x540 [ 156.339480][ T7] ? __pfx_worker_thread+0x10/0x10 [ 156.345572][ T7] ? __pfx_kthread+0x10/0x10 [ 156.350513][ T7] ret_from_fork+0x6d/0x90 [ 156.355215][ T7] ? __pfx_kthread+0x10/0x10 [ 156.360031][ T7] ret_from_fork_asm+0x1a/0x30 [ 156.365496][ T7] [ 156.368790][ T7] Kernel Offset: disabled [ 156.373181][ T7] Rebooting in 86400 seconds..