./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor221208548 <...> Warning: Permanently added '10.128.0.57' (ED25519) to the list of known hosts. execve("./syz-executor221208548", ["./syz-executor221208548"], 0x7ffc6cc88950 /* 10 vars */) = 0 brk(NULL) = 0x555567e6a000 brk(0x555567e6ad00) = 0x555567e6ad00 arch_prctl(ARCH_SET_FS, 0x555567e6a380) = 0 set_tid_address(0x555567e6a650) = 5839 set_robust_list(0x555567e6a660, 24) = 0 rseq(0x555567e6aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor221208548", 4096) = 27 getrandom("\x6f\x9f\x86\xaa\x1e\xd8\xb7\x1e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555567e6ad00 brk(0x555567e8bd00) = 0x555567e8bd00 brk(0x555567e8c000) = 0x555567e8c000 mprotect(0x7ff5d9389000, 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 5840 attached , child_tidptr=0x555567e6a650) = 5840 [pid 5840] set_robust_list(0x555567e6a660, 24) = 0 [pid 5840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5840] setpgid(0, 0) = 0 [pid 5840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5840] write(3, "1000", 4) = 4 [pid 5840] close(3) = 0 [pid 5840] write(1, "executing program\n", 18executing program ) = 18 [pid 5840] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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=4294966948, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = -1 EFAULT (Bad address) [pid 5840] socketpair(AF_TIPC, SOCK_DGRAM, 0, [3, 4]) = 0 [pid 5840] close(3) = 0 [pid 5840] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=65537, max_entries=8, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5840] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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) = -1 EFAULT (Bad address) [pid 5840] close(3) = 0 [pid 5840] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=3983, max_entries=9, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5840] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000340, value=0x20000200, flags=BPF_ANY}, 32) = 0 [pid 5840] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=12, insns=0x20000440, 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) = 5 [pid 5840] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="timer_start", prog_fd=5}}, 16) = 6 [pid 5840] exit_group(0) = ? [pid 5840] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5840, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5841 attached , child_tidptr=0x555567e6a650) = 5841 [pid 5841] set_robust_list(0x555567e6a660, 24) = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 executing program [pid 5841] write(1, "executing program\n", 18) = 18 [pid 5841] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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=4294966948, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = -1 EFAULT (Bad address) [pid 5841] socketpair(AF_TIPC, SOCK_DGRAM, 0, [3, 4]) = 0 [pid 5841] close(3) = 0 [pid 5841] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=65537, max_entries=8, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5841] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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) = -1 EFAULT (Bad address) [pid 5841] close(3) = 0 [pid 5841] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=3983, max_entries=9, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5841] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000340, value=0x20000200, flags=BPF_ANY}, 32) = 0 [pid 5841] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=12, insns=0x20000440, 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) = 5 [pid 5841] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="timer_start", prog_fd=5}}, 16) = 6 [pid 5841] exit_group(0) = ? [pid 5841] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5841, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5842 attached , child_tidptr=0x555567e6a650) = 5842 [pid 5842] set_robust_list(0x555567e6a660, 24) = 0 [pid 5842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5842] setpgid(0, 0) = 0 [pid 5842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5842] write(3, "1000", 4) = 4 [pid 5842] close(3) = 0 executing program [pid 5842] write(1, "executing program\n", 18) = 18 [pid 5842] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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=4294966948, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = -1 EFAULT (Bad address) [pid 5842] socketpair(AF_TIPC, SOCK_DGRAM, 0, [3, 4]) = 0 [pid 5842] close(3) = 0 [pid 5842] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=65537, max_entries=8, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5842] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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) = -1 EFAULT (Bad address) [pid 5842] close(3) = 0 [pid 5842] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=3983, max_entries=9, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5842] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000340, value=0x20000200, flags=BPF_ANY}, 32) = 0 [pid 5842] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=12, insns=0x20000440, 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) = 5 [pid 5842] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="timer_start", prog_fd=5}}, 16) = 6 [pid 5842] exit_group(0) = ? [pid 5842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5843 attached , child_tidptr=0x555567e6a650) = 5843 [pid 5843] set_robust_list(0x555567e6a660, 24) = 0 [pid 5843] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5843] setpgid(0, 0) = 0 [pid 5843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5843] write(3, "1000", 4) = 4 [pid 5843] close(3) = 0 executing program [pid 5843] write(1, "executing program\n", 18) = 18 [pid 5843] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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=4294966948, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 144) = -1 EFAULT (Bad address) [pid 5843] socketpair(AF_TIPC, SOCK_DGRAM, 0, [3, 4]) = 0 [pid 5843] close(3) = 0 [pid 5843] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=65537, max_entries=8, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5843] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_UNSPEC, insn_cnt=12, insns=0x20000440, license=NULL, 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) = -1 EFAULT (Bad address) [pid 5843] close(3) = 0 [pid 5843] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_LPM_TRIE, key_size=7, value_size=3983, max_entries=9, map_flags=BPF_F_NO_PREALLOC, 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}, 72) = 3 [pid 5843] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000340, value=0x20000200, flags=BPF_ANY}, 32) = 0 [pid 5843] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=12, insns=0x20000440, 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) = 5 [pid 5843] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="timer_start", prog_fd=5}}, 16) = 6 [pid 5843] exit_group(0) = ? [ 58.146452][ T5834] [ 58.148828][ T5834] ====================================================== [ 58.155840][ T5834] WARNING: possible circular locking dependency detected [ 58.162863][ T5834] 6.12.0-rc6-syzkaller-01236-gcf6d9fe09185 #0 Not tainted [ 58.169983][ T5834] ------------------------------------------------------ [ 58.176984][ T5834] sshd/5834 is trying to acquire lock: [ 58.182462][ T5834] ffff8880b8729430 (krc.lock){....}-{2:2}, at: kvfree_call_rcu+0x18a/0x790 [ 58.191115][ T5834] [ 58.191115][ T5834] but task is already holding lock: [ 58.198474][ T5834] ffff8880b872a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240 [ 58.207353][ T5834] [ 58.207353][ T5834] which lock already depends on the new lock. [ 58.207353][ T5834] [ 58.217745][ T5834] [ 58.217745][ T5834] the existing dependency chain (in reverse order) is: [ 58.226756][ T5834] [ 58.226756][ T5834] -> #1 (&base->lock){-.-.}-{2:2}: [ 58.234074][ T5834] lock_acquire+0x1ed/0x550 [ 58.239110][ T5834] _raw_spin_lock_irqsave+0xd5/0x120 [ 58.244922][ T5834] lock_timer_base+0x112/0x240 [ 58.250200][ T5834] __mod_timer+0x1ca/0xeb0 [ 58.255125][ T5834] queue_delayed_work_on+0x1ca/0x390 [ 58.260922][ T5834] kvfree_call_rcu+0x47f/0x790 [ 58.266214][ T5834] pwq_release_workfn+0x664/0x800 [ 58.271759][ T5834] kthread_worker_fn+0x500/0xb70 [ 58.277211][ T5834] kthread+0x2f0/0x390 [ 58.281789][ T5834] ret_from_fork+0x4b/0x80 [ 58.286719][ T5834] ret_from_fork_asm+0x1a/0x30 [ 58.292003][ T5834] [ 58.292003][ T5834] -> #0 (krc.lock){....}-{2:2}: [ 58.299031][ T5834] validate_chain+0x18ef/0x5920 [ 58.304390][ T5834] __lock_acquire+0x1384/0x2050 [ 58.309754][ T5834] lock_acquire+0x1ed/0x550 [ 58.314772][ T5834] _raw_spin_lock+0x2e/0x40 [ 58.320569][ T5834] kvfree_call_rcu+0x18a/0x790 [ 58.325852][ T5834] trie_delete_elem+0x546/0x6a0 [ 58.331215][ T5834] bpf_prog_2c29ac5cdc6b1842+0x43/0x47 [ 58.337195][ T5834] bpf_trace_run2+0x2ec/0x540 [ 58.342381][ T5834] enqueue_timer+0x3ce/0x570 [ 58.347482][ T5834] __mod_timer+0x953/0xeb0 [ 58.352409][ T5834] sk_reset_timer+0x23/0xc0 [ 58.357420][ T5834] tcp_schedule_loss_probe+0x451/0x5c0 [ 58.363399][ T5834] tcp_write_xmit+0x4477/0x6bf0 [ 58.368761][ T5834] __tcp_push_pending_frames+0x9b/0x360 [ 58.374838][ T5834] tcp_sendmsg_locked+0x44d6/0x4f30 [ 58.380562][ T5834] tcp_sendmsg+0x30/0x50 [ 58.385327][ T5834] __sock_sendmsg+0x1a6/0x270 [ 58.390522][ T5834] sock_write_iter+0x2d7/0x3f0 [ 58.395800][ T5834] vfs_write+0xaeb/0xd30 [ 58.400557][ T5834] ksys_write+0x183/0x2b0 [ 58.405402][ T5834] do_syscall_64+0xf3/0x230 [ 58.410415][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.416831][ T5834] [ 58.416831][ T5834] other info that might help us debug this: [ 58.416831][ T5834] [ 58.427049][ T5834] Possible unsafe locking scenario: [ 58.427049][ T5834] [ 58.434487][ T5834] CPU0 CPU1 [ 58.439836][ T5834] ---- ---- [ 58.445187][ T5834] lock(&base->lock); [ 58.449247][ T5834] lock(krc.lock); [ 58.455576][ T5834] lock(&base->lock); [ 58.462157][ T5834] lock(krc.lock); [ 58.465956][ T5834] [ 58.465956][ T5834] *** DEADLOCK *** [ 58.465956][ T5834] [ 58.474090][ T5834] 3 locks held by sshd/5834: [ 58.478665][ T5834] #0: ffff888026131bd8 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_sendmsg+0x22/0x50 [ 58.487802][ T5834] #1: ffff8880b872a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240 [ 58.497118][ T5834] #2: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540 [ 58.506510][ T5834] [ 58.506510][ T5834] stack backtrace: [ 58.512405][ T5834] CPU: 1 UID: 0 PID: 5834 Comm: sshd Not tainted 6.12.0-rc6-syzkaller-01236-gcf6d9fe09185 #0 [ 58.522570][ T5834] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 58.532620][ T5834] Call Trace: [ 58.535888][ T5834] [ 58.538811][ T5834] dump_stack_lvl+0x241/0x360 [ 58.543484][ T5834] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.548672][ T5834] ? __pfx__printk+0x10/0x10 [ 58.553260][ T5834] print_circular_bug+0x13a/0x1b0 [ 58.558277][ T5834] check_noncircular+0x36a/0x4a0 [ 58.563213][ T5834] ? __pfx_check_noncircular+0x10/0x10 [ 58.568662][ T5834] ? lockdep_lock+0x123/0x2b0 [ 58.573332][ T5834] ? mark_lock+0x9a/0x360 [ 58.577652][ T5834] validate_chain+0x18ef/0x5920 [ 58.582670][ T5834] ? __pfx_validate_chain+0x10/0x10 [ 58.587854][ T5834] ? stack_depot_save_flags+0x6e4/0x830 [ 58.593395][ T5834] ? do_raw_spin_lock+0x14f/0x370 [ 58.598410][ T5834] ? __pfx_lock_release+0x10/0x10 [ 58.603439][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0 [ 58.608631][ T5834] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 58.614516][ T5834] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 58.620836][ T5834] ? stack_trace_save+0x118/0x1d0 [ 58.625853][ T5834] ? mark_lock+0x9a/0x360 [ 58.630173][ T5834] __lock_acquire+0x1384/0x2050 [ 58.635025][ T5834] lock_acquire+0x1ed/0x550 [ 58.639534][ T5834] ? kvfree_call_rcu+0x18a/0x790 [ 58.644466][ T5834] ? __pfx_lock_acquire+0x10/0x10 [ 58.649493][ T5834] ? __phys_addr+0xba/0x170 [ 58.653989][ T5834] _raw_spin_lock+0x2e/0x40 [ 58.658509][ T5834] ? kvfree_call_rcu+0x18a/0x790 [ 58.663439][ T5834] kvfree_call_rcu+0x18a/0x790 [ 58.668193][ T5834] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 58.674082][ T5834] ? __pfx_kvfree_call_rcu+0x10/0x10 [ 58.679361][ T5834] ? longest_prefix_match+0x49f/0x650 [ 58.684750][ T5834] trie_delete_elem+0x546/0x6a0 [ 58.689597][ T5834] ? bpf_trace_run2+0x1fc/0x540 [ 58.694440][ T5834] bpf_prog_2c29ac5cdc6b1842+0x43/0x47 [ 58.699889][ T5834] bpf_trace_run2+0x2ec/0x540 [ 58.704563][ T5834] ? __pfx_bpf_trace_run2+0x10/0x10 [ 58.709752][ T5834] ? __pfx_debug_object_activate+0x10/0x10 [ 58.715562][ T5834] enqueue_timer+0x3ce/0x570 [ 58.720145][ T5834] __mod_timer+0x953/0xeb0 [ 58.724559][ T5834] ? __pfx___mod_timer+0x10/0x10 [ 58.729486][ T5834] ? ktime_get+0x3c/0xb0 [ 58.733722][ T5834] ? __asan_memset+0x23/0x50 [ 58.738309][ T5834] sk_reset_timer+0x23/0xc0 [ 58.742808][ T5834] tcp_schedule_loss_probe+0x451/0x5c0 [ 58.748260][ T5834] tcp_write_xmit+0x4477/0x6bf0 [ 58.753111][ T5834] ? __alloc_skb+0x2d5/0x440 [ 58.757702][ T5834] __tcp_push_pending_frames+0x9b/0x360 [ 58.763243][ T5834] tcp_sendmsg_locked+0x44d6/0x4f30 [ 58.768438][ T5834] ? mark_lock+0x9a/0x360 [ 58.772773][ T5834] ? __pfx_tcp_sendmsg_locked+0x10/0x10 [ 58.778316][ T5834] ? tcp_sendmsg+0x22/0x50 [ 58.782728][ T5834] ? do_raw_spin_unlock+0x13c/0x8b0 [ 58.787920][ T5834] tcp_sendmsg+0x30/0x50 [ 58.792156][ T5834] __sock_sendmsg+0x1a6/0x270 [ 58.796826][ T5834] sock_write_iter+0x2d7/0x3f0 [ 58.801582][ T5834] ? __pfx_sock_write_iter+0x10/0x10 [ 58.806866][ T5834] ? bpf_lsm_file_permission+0x9/0x10 [ 58.812231][ T5834] ? security_file_permission+0x74/0x280 [ 58.817863][ T5834] vfs_write+0xaeb/0xd30 [ 58.822096][ T5834] ? __pfx_sock_write_iter+0x10/0x10 [ 58.827371][ T5834] ? __pfx_vfs_write+0x10/0x10 [ 58.832127][ T5834] ? __might_fault+0xaa/0x120 [ 58.836805][ T5834] ? _copy_to_user+0x8b/0xb0 [ 58.841398][ T5834] ? fdget_pos+0x19a/0x320 [ 58.845808][ T5834] ksys_write+0x183/0x2b0 [ 58.850137][ T5834] ? __pfx_ksys_write+0x10/0x10 [ 58.854986][ T5834] ? do_syscall_64+0x100/0x230 [ 58.859753][ T5834] ? do_syscall_64+0xb6/0x230 [ 58.864419][ T5834] do_syscall_64+0xf3/0x230 [ 58.868915][ T5834] ? clear_bhb_loop+0x35/0x90 [ 58.873582][ T5834] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.879486][ T5834] RIP: 0033:0x7f7a00d16bf2 [ 58.883895][ T5834] Code: 89 c7 48 89 44 24 08 e8 7b 34 fa ff 48 8b 44 24 08 48 83 c4 28 c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 07 a2 0d 00 f7 d8 64 89 02 48 83 [ 58.903495][ T5834] RSP: 002b:00007fffbf740a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 58.911989][ T5834] RAX: ffffffffffffffda RBX: 000000000000003c RCX: 00007f7a00d16bf2 [ 58.919955][ T5834] RDX: 000000000000003c RSI: 000055a1a1714990 RDI: 0000000000000004 [ 58.927945][ T5834] RBP: 000055a1a1722250 R08: 0000000000000000 R09: 0000000000000000 [ 58.935909][ T5834] R10: 0000000000000000 R11: 0000000000000246 R12: 000055a177d9daa4 [ 58.943887][ T5834] R13: 000000000000003a R14: 000055a177d9e3e8 R15: 00007fffbf740af8 [ 58.951859][ T5834]