ci-upstream-net-this-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-this-kasan-gce/syz-executor474002402 <...> Warning: Permanently added '10.128.0.141' (ED25519) to the list of known hosts. execve("ci-upstream-net-this-kasan-gce/syz-executor474002402", ["ci-upstream-net-this-kasan-gce/syz-executor474002402"], 0x7ffd0cc2cef0 /* 10 vars */) = 0 brk(NULL) = 0x555593954000 brk(0x555593954d80) = 0x555593954d80 arch_prctl(ARCH_SET_FS, 0x555593954400) = 0 set_tid_address(0x5555939546d0) = 5651 set_robust_list(0x5555939546e0, 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-net-this-kasan-gce/syz-executor474002402", 4096) = 58 getrandom("\x9c\x1e\x04\x23\xa3\x59\xed\x28", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555593954d80 brk(0x555593975d80) = 0x555593975d80 brk(0x555593976000) = 0x555593976000 mprotect(0x7f66bb986000, 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-net-this-kasan-gce/strace-static-x86_64: Process 5652 attached , child_tidptr=0x5555939546d0) = 5652 [pid 5652] set_robust_list(0x5555939546e0, 24 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] <... set_robust_list resumed>) = 0 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5652] setpgid(0, 0) = 0 [pid 5652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5652] write(3, "1000", 4) = 4 [pid 5652] close(3) = 0 [pid 5652] write(1, "executing program\n", 18) = 18 executing program [pid 5652] socket(AF_X25, SOCK_SEQPACKET, 0) = 3 [pid 5652] ioctl(3, SIOCADDRT, 0x200000000140) = 0 [pid 5652] bind(3, {sa_family=AF_X25, sx25_addr={x25_addr=" "}}, 18) = 0 [pid 5652] connect(3, {sa_family=AF_X25, sx25_addr={x25_addr="\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\x20"}}, 18 [pid 5651] kill(-5652, SIGKILL [pid 5652] <... connect resumed>) = ? [pid 5651] <... kill resumed>) = 0 [pid 5651] kill(5652, SIGKILL) = 0 [pid 5652] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5652, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted kill ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5653 attached , child_tidptr=0x5555939546d0) = 5653 [pid 5653] set_robust_list(0x5555939546e0, 24) = 0 [pid 5653] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] <... prctl resumed>) = 0 [pid 5653] setpgid(0, 0) = 0 [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5653] write(3, "1000", 4) = 4 [pid 5653] close(3) = 0 [pid 5653] write(1, "executing program\n", 18) = 18 executing program [pid 5653] socket(AF_X25, SOCK_SEQPACKET, 0) = 3 [pid 5653] ioctl(3, SIOCADDRT, 0x200000000140) = -1 EINVAL (Invalid argument) [pid 5653] bind(3, {sa_family=AF_X25, sx25_addr={x25_addr=" "}}, 18) = 0 [pid 5653] connect(3, {sa_family=AF_X25, sx25_addr={x25_addr="\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\x20"}}, 18 [pid 5651] kill(-5653, SIGKILL) = 0 [pid 5653] <... connect resumed>) = ? [pid 5651] kill(5653, SIGKILL) = 0 [pid 5653] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5653, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted kill ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5654 attached , child_tidptr=0x5555939546d0) = 5654 [pid 5654] set_robust_list(0x5555939546e0, 24) = 0 [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5654] setpgid(0, 0) = 0 [pid 5654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5654] <... openat resumed>) = 3 [pid 5654] write(3, "1000", 4) = 4 [pid 5654] close(3) = 0 [pid 5654] write(1, "executing program\n", 18) = 18 executing program [pid 5654] socket(AF_X25, SOCK_SEQPACKET, 0) = 3 [pid 5654] ioctl(3, SIOCADDRT, 0x200000000140) = -1 EINVAL (Invalid argument) [pid 5654] bind(3, {sa_family=AF_X25, sx25_addr={x25_addr=" "}}, 18) = 0 [ 157.959991][ C1] [ 157.962353][ C1] ================================ [ 157.967464][ C1] WARNING: inconsistent lock state [ 157.972567][ C1] syzkaller #0 Not tainted [ 157.976978][ C1] -------------------------------- [ 157.982080][ C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 157.988923][ C1] ksoftirqd/1/24 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 157.995170][ C1] ffff888075c40260 (sk_lock-AF_X25){+.?.}-{0:0}, at: x25_kill_by_neigh+0x10d/0x250 [ 158.004509][ C1] {SOFTIRQ-ON-W} state was registered at: [ 158.010224][ C1] lock_acquire+0x115/0x350 [ 158.014822][ C1] lock_sock_nested+0x41/0x100 [ 158.019673][ C1] x25_bind+0x209/0x450 [ 158.023933][ C1] __sys_bind+0x2e3/0x410 [ 158.028349][ C1] __x64_sys_bind+0x7a/0x90 [ 158.032938][ C1] do_syscall_64+0x166/0x520 [ 158.037615][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 158.043599][ C1] irq event stamp: 677398 [ 158.047919][ C1] hardirqs last enabled at (677398): [] __local_bh_enable_ip+0xd6/0x140 [ 158.057904][ C1] hardirqs last disabled at (677397): [] __local_bh_enable_ip+0x72/0x140 [ 158.067889][ C1] softirqs last enabled at (677334): [] run_ksoftirqd+0x36/0x60 [ 158.077181][ C1] softirqs last disabled at (677339): [] run_ksoftirqd+0x36/0x60 [ 158.086473][ C1] [ 158.086473][ C1] other info that might help us debug this: [ 158.094529][ C1] Possible unsafe locking scenario: [ 158.094529][ C1] [ 158.101979][ C1] CPU0 [ 158.105261][ C1] ---- [ 158.108539][ C1] lock(sk_lock-AF_X25); [ 158.112871][ C1] [ 158.116319][ C1] lock(sk_lock-AF_X25); [ 158.120823][ C1] [ 158.120823][ C1] *** DEADLOCK *** [ 158.120823][ C1] [ 158.128966][ C1] locks held by ksoftirqd/1/24: 1, last CPU#1: [ 158.135119][ C1] #0: ffffffff8ed5c8a0 (rcu_read_lock){....}-{1:3}, at: netif_receive_skb_core+0x33/0x2b0 [ 158.145136][ C1] [ 158.145136][ C1] stack backtrace: [ 158.151025][ C1] CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) [ 158.160220][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 158.170286][ C1] Call Trace: [ 158.173585][ C1] [ 158.176526][ C1] dump_stack_lvl+0xe8/0x150 [ 158.181138][ C1] print_usage_bug+0x28c/0x2e0 [ 158.185919][ C1] valid_state+0xbe/0xf0 [ 158.190173][ C1] mark_lock_irq+0x36/0x380 [ 158.194683][ C1] mark_lock+0x117/0x190 [ 158.198929][ C1] __lock_acquire+0x71e/0x2de0 [ 158.203699][ C1] ? kasan_quarantine_put+0xbb/0x1f0 [ 158.208989][ C1] ? do_raw_spin_lock+0x12b/0x2f0 [ 158.214018][ C1] ? lock_acquire+0x115/0x350 [ 158.218701][ C1] lock_acquire+0x115/0x350 [ 158.223205][ C1] ? x25_kill_by_neigh+0x10d/0x250 [ 158.228347][ C1] ? x25_kill_by_neigh+0x103/0x250 [ 158.233463][ C1] lock_sock_nested+0x41/0x100 [ 158.238242][ C1] ? x25_kill_by_neigh+0x10d/0x250 [ 158.243358][ C1] x25_kill_by_neigh+0x10d/0x250 [ 158.248301][ C1] x25_lapb_receive_frame+0x1b0/0xfb0 [ 158.253681][ C1] ? netif_receive_skb_core+0x33/0x2b0 [ 158.259148][ C1] ? netif_receive_skb_core+0x33/0x2b0 [ 158.264613][ C1] ? __pfx_x25_lapb_receive_frame+0x10/0x10 [ 158.270515][ C1] netif_receive_skb_core+0x2a6/0x2b0 [ 158.275899][ C1] lapbeth_napi_poll+0x42/0x90 [ 158.280686][ C1] __napi_poll+0xaa/0x330 [ 158.285019][ C1] net_rx_action+0x61d/0xf50 [ 158.289618][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 158.294728][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 158.299930][ C1] ? __pfx_sched_clock_cpu+0x10/0x10 [ 158.305221][ C1] ? sched_balance_domains+0x770/0x880 [ 158.310698][ C1] handle_softirqs+0x226/0x860 [ 158.315474][ C1] ? schedule+0x90/0x2b0 [ 158.319719][ C1] ? run_ksoftirqd+0x36/0x60 [ 158.324321][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 158.329355][ C1] run_ksoftirqd+0x36/0x60 [ 158.333780][ C1] smpboot_thread_fn+0x565/0xa70 [ 158.338724][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 158.343758][ C1] kthread+0x38b/0x480 [ 158.347830][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 158.353298][ C1] ? __pfx_kthread+0x10/0x10 [pid 5654] connect(3, {sa_family=AF_X25, sx25_addr={x25_addr="\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\x20"}}, 18) = -1 ENETUNREACH (Network is unreachable) [pid 5654] exit_group(0) = ? [pid 5654] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5654, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [ 158.357893][ C1] ret_from_fork+0x514/0xb70 [ 158.362490][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 158.367612][ C1] ? __switch_to+0xc89/0x1420 [ 158.372301][ C1] ? __pfx_kthread+0x10/0x10 [ 158.376897][ C1] ret_from_fork_asm+0x1a/0x30 [ 158.381694][ C1] [ 158.384791][ C1] BUG: sleeping function called from invalid context at net/core/sock.c:3832 [ 158.384809][ C1] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 24, name: ksoftirqd/1 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5655 attached , child_tidptr=0x5555939546d0) = 5655 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] set_robust_list(0x5555939546e0, 24 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5655] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5655] setpgid(0, 0) = 0 [pid 5655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5655] write(3, "1000", 4) = 4 [pid 5655] close(3) = 0 executing program [ 158.384829][ C1] preempt_count: 100, expected: 0 [ 158.384840][ C1] RCU nest depth: 1, expected: 0 [ 158.384851][ C1] INFO: lockdep is turned off. [ 158.384857][ C1] Preemption disabled at: [ 158.384865][ C1] [] handle_softirqs+0xab/0x860 [ 158.384901][ C1] CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(full) [ 158.384926][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 158.384940][ C1] Call Trace: [ 158.384949][ C1] [pid 5655] write(1, "executing program\n", 18) = 18 [pid 5655] socket(AF_X25, SOCK_SEQPACKET, 0) = 3 [pid 5655] ioctl(3, SIOCADDRT, 0x200000000140) = -1 EINVAL (Invalid argument) [pid 5655] bind(3, {sa_family=AF_X25, sx25_addr={x25_addr=" "}}, 18) = 0 [ 158.384958][ C1] dump_stack_lvl+0xe8/0x150 [ 158.384988][ C1] __might_resched+0x36a/0x4c0 [ 158.385019][ C1] ? handle_softirqs+0xab/0x860 [ 158.385048][ C1] lock_sock_nested+0x56/0x100 [ 158.385070][ C1] x25_kill_by_neigh+0x10d/0x250 [ 158.385094][ C1] x25_lapb_receive_frame+0x1b0/0xfb0 [ 158.385115][ C1] ? netif_receive_skb_core+0x33/0x2b0 [ 158.385142][ C1] ? netif_receive_skb_core+0x33/0x2b0 [ 158.385168][ C1] ? __pfx_x25_lapb_receive_frame+0x10/0x10 [ 158.385194][ C1] netif_receive_skb_core+0x2a6/0x2b0 [ 158.385226][ C1] lapbeth_napi_poll+0x42/0x90 [ 158.385262][ C1] __napi_poll+0xaa/0x330 [ 158.385283][ C1] net_rx_action+0x61d/0xf50 [ 158.385310][ C1] ? __pfx_net_rx_action+0x10/0x10 [ 158.385328][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 158.385350][ C1] ? __pfx_sched_clock_cpu+0x10/0x10 [ 158.385368][ C1] ? sched_balance_domains+0x770/0x880 [ 158.385403][ C1] handle_softirqs+0x226/0x860 [ 158.385430][ C1] ? schedule+0x90/0x2b0 [ 158.385448][ C1] ? run_ksoftirqd+0x36/0x60 [ 158.385478][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 158.385506][ C1] run_ksoftirqd+0x36/0x60 [ 158.385533][ C1] smpboot_thread_fn+0x565/0xa70 [ 158.385560][ C1] ? smpboot_thread_fn+0x4e/0xa70 [ 158.385588][ C1] kthread+0x38b/0x480 [ 158.385605][ C1] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 158.385633][ C1] ? __pfx_kthread+0x10/0x10 [ 158.385652][ C1] ret_from_fork+0x514/0xb70 [ 158.385672][ C1] ? __pfx_ret_from_fork+0x10/0x10 [ 158.385702][ C1] ? __switch_to+0xc89/0x1420 [ 158.385730][ C1] ? __pfx_kthread+0x10/0x10 [ 158.385750][ C1] ret_from_fork_asm+0x1a/0x30 [ 158.385785][ C1] [pid 5655] connect(3, {sa_family=AF_X25, sx25_addr={x25_addr="\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc\x20"}}, 18 [pid 5651] kill(-5655, SIGKILL) = 0 [pid 5655] <... connect resumed>) = ? [pid 5651] kill(5655, SIGKILL) = 0 [pid 5655] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5655, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted kill ...>) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555939546d0) = 5656 ci-upstream-net-this-kasan-gce/strace-static-x86_64: Process 5656 attached [pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] set_robust_list(0x5555939546e0, 24) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5656] setpgid(0, 0) = 0 [pid 5656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5656] write(3, "1000", 4) = 4 [pid 5656] close(3) = 0 executing program [pid 5656] write(1, "executing program\n", 18) = 18 [pid 5656] socket(AF_X25, SOCK_SEQPACKET, 0) = 3 [pid 5656] ioctl(3, SIOCADDRT, 0x200000000140) = -1 EINVAL (Invalid argument) [pid 5656] bind(3, {sa_family=AF_X25, sx25_addr={x25_addr=" "}}, 18) = 0