./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1082455196

<...>
Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts.
execve("./syz-executor1082455196", ["./syz-executor1082455196"], 0x7ffc8dbcc3c0 /* 10 vars */) = 0
brk(NULL)                               = 0x5555743b1000
brk(0x5555743b1d00)                     = 0x5555743b1d00
arch_prctl(ARCH_SET_FS, 0x5555743b1380) = 0
set_tid_address(0x5555743b1650)         = 5230
set_robust_list(0x5555743b1660, 24)     = 0
rseq(0x5555743b1ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1082455196", 4096) = 28
getrandom("\x6b\x21\xdf\xbd\x91\x3d\x77\xca", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x5555743b1d00
brk(0x5555743d2d00)                     = 0x5555743d2d00
brk(0x5555743d3000)                     = 0x5555743d3000
mprotect(0x7f14c7da9000, 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 5231 attached
, child_tidptr=0x5555743b1650) = 5231
[pid  5231] set_robust_list(0x5555743b1660, 24) = 0
[pid  5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5231] setpgid(0, 0)               = 0
[pid  5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5231] write(3, "1000", 4)         = 4
[pid  5231] close(3)                    = 0
executing program
[pid  5231] write(1, "executing program\n", 18) = 18
[pid  5231] 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  5231] socketpair(AF_TIPC, SOCK_DGRAM, 0, [3, 4]) = 0
[pid  5231] close(3)                    = 0
[pid  5231] 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  5231] 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  5231] close(3)                    = 0
[pid  5231] 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  5231] bpf(BPF_MAP_UPDATE_ELEM, {map_fd=3, key=0x20000340, value=0x20000200, flags=BPF_ANY}, 32) = 0
[pid  5231] 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  5231] bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name="timer_start", prog_fd=5}}, 16) = 6
[   63.210752][ T5225] 
[   63.213114][ T5225] ======================================================
[   63.220216][ T5225] WARNING: possible circular locking dependency detected
[   63.227499][ T5225] 6.11.0-rc5-syzkaller-00154-g9b0874286768 #0 Not tainted
[   63.234630][ T5225] ------------------------------------------------------
[   63.242083][ T5225] sshd/5225 is trying to acquire lock:
[   63.247646][ T5225] ffff8880b8829430 (krc.lock){....}-{2:2}, at: kvfree_call_rcu+0x18a/0x790
[   63.256375][ T5225] 
[   63.256375][ T5225] but task is already holding lock:
[   63.263808][ T5225] ffff8880b882a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240
[   63.272933][ T5225] 
[   63.272933][ T5225] which lock already depends on the new lock.
[   63.272933][ T5225] 
[   63.283530][ T5225] 
[   63.283530][ T5225] the existing dependency chain (in reverse order) is:
[   63.292808][ T5225] 
[   63.292808][ T5225] -> #1 (&base->lock){-.-.}-{2:2}:
[   63.300195][ T5225]        lock_acquire+0x1ed/0x550
[   63.305230][ T5225]        _raw_spin_lock_irqsave+0xd5/0x120
[   63.311037][ T5225]        lock_timer_base+0x112/0x240
[   63.316309][ T5225]        __mod_timer+0x1ca/0xeb0
[   63.321330][ T5225]        queue_delayed_work_on+0x1ca/0x390
[   63.327397][ T5225]        kvfree_call_rcu+0x47f/0x790
[   63.332760][ T5225]        pwq_release_workfn+0x6d1/0x860
[   63.338464][ T5225]        kthread_worker_fn+0x500/0xaf0
[   63.344471][ T5225]        kthread+0x2f0/0x390
[   63.349070][ T5225]        ret_from_fork+0x4b/0x80
[   63.353999][ T5225]        ret_from_fork_asm+0x1a/0x30
[   63.359277][ T5225] 
[   63.359277][ T5225] -> #0 (krc.lock){....}-{2:2}:
[   63.366393][ T5225]        validate_chain+0x18e0/0x5900
[   63.371962][ T5225]        __lock_acquire+0x137a/0x2040
[   63.377341][ T5225]        lock_acquire+0x1ed/0x550
[   63.382392][ T5225]        _raw_spin_lock+0x2e/0x40
[   63.387442][ T5225]        kvfree_call_rcu+0x18a/0x790
[   63.392721][ T5225]        trie_delete_elem+0x546/0x6a0
[   63.398113][ T5225]        bpf_prog_2c29ac5cdc6b1842+0x42/0x46
[   63.404264][ T5225]        bpf_trace_run2+0x2ec/0x540
[   63.409455][ T5225]        enqueue_timer+0x3ce/0x570
[   63.414566][ T5225]        __mod_timer+0x953/0xeb0
[   63.419510][ T5225]        sk_reset_timer+0x23/0xc0
[   63.424527][ T5225]        tcp_schedule_loss_probe+0x448/0x590
[   63.430495][ T5225]        tcp_write_xmit+0x4308/0x6a10
[   63.435884][ T5225]        __tcp_push_pending_frames+0x9b/0x360
[   63.442026][ T5225]        tcp_sendmsg_locked+0x43b1/0x4e10
[   63.447737][ T5225]        tcp_sendmsg+0x30/0x50
[   63.452591][ T5225]        __sock_sendmsg+0x1a6/0x270
[   63.458151][ T5225]        sock_write_iter+0x2dd/0x400
[   63.463460][ T5225]        vfs_write+0xa72/0xc90
[   63.468749][ T5225]        ksys_write+0x1a0/0x2c0
[   63.473595][ T5225]        do_syscall_64+0xf3/0x230
[   63.478604][ T5225]        entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   63.485113][ T5225] 
[   63.485113][ T5225] other info that might help us debug this:
[   63.485113][ T5225] 
[   63.495764][ T5225]  Possible unsafe locking scenario:
[   63.495764][ T5225] 
[   63.503283][ T5225]        CPU0                    CPU1
[   63.508633][ T5225]        ----                    ----
[   63.513981][ T5225]   lock(&base->lock);
[   63.518124][ T5225]                                lock(krc.lock);
[   63.524436][ T5225]                                lock(&base->lock);
[   63.531009][ T5225]   lock(krc.lock);
[   63.534808][ T5225] 
[   63.534808][ T5225]  *** DEADLOCK ***
[   63.534808][ T5225] 
[   63.542938][ T5225] 3 locks held by sshd/5225:
[   63.547516][ T5225]  #0: ffff88807e132718 (sk_lock-AF_INET){+.+.}-{0:0}, at: tcp_sendmsg+0x22/0x50
[   63.556647][ T5225]  #1: ffff8880b882a718 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x112/0x240
[   63.565966][ T5225]  #2: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: bpf_trace_run2+0x1fc/0x540
[   63.575374][ T5225] 
[   63.575374][ T5225] stack backtrace:
[   63.581279][ T5225] CPU: 0 UID: 0 PID: 5225 Comm: sshd Not tainted 6.11.0-rc5-syzkaller-00154-g9b0874286768 #0
[   63.591454][ T5225] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
[   63.601510][ T5225] Call Trace:
[   63.604792][ T5225]  <TASK>
[   63.607713][ T5225]  dump_stack_lvl+0x241/0x360
[   63.612392][ T5225]  ? __pfx_dump_stack_lvl+0x10/0x10
[   63.617584][ T5225]  ? print_circular_bug+0x130/0x1a0
[   63.622776][ T5225]  check_noncircular+0x36a/0x4a0
[   63.627703][ T5225]  ? __pfx_check_noncircular+0x10/0x10
[   63.633147][ T5225]  ? lockdep_lock+0x123/0x2b0
[   63.637812][ T5225]  ? mark_lock+0x9a/0x350
[   63.642136][ T5225]  validate_chain+0x18e0/0x5900
[   63.646981][ T5225]  ? __pfx_validate_chain+0x10/0x10
[   63.652162][ T5225]  ? stack_depot_save_flags+0x6e4/0x830
[   63.657724][ T5225]  ? do_raw_spin_lock+0x14f/0x370
[   63.662739][ T5225]  ? __pfx_lock_release+0x10/0x10
[   63.667754][ T5225]  ? do_raw_spin_unlock+0x13c/0x8b0
[   63.672942][ T5225]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[   63.678825][ T5225]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[   63.685144][ T5225]  ? stack_trace_save+0x118/0x1d0
[   63.690249][ T5225]  ? mark_lock+0x9a/0x350
[   63.694577][ T5225]  __lock_acquire+0x137a/0x2040
[   63.699428][ T5225]  lock_acquire+0x1ed/0x550
[   63.703946][ T5225]  ? kvfree_call_rcu+0x18a/0x790
[   63.708918][ T5225]  ? __pfx_lock_acquire+0x10/0x10
[   63.714044][ T5225]  ? __phys_addr+0xba/0x170
[   63.718592][ T5225]  _raw_spin_lock+0x2e/0x40
[   63.723094][ T5225]  ? kvfree_call_rcu+0x18a/0x790
[   63.728023][ T5225]  kvfree_call_rcu+0x18a/0x790
[   63.732778][ T5225]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[   63.738691][ T5225]  ? __pfx_kvfree_call_rcu+0x10/0x10
[   63.743968][ T5225]  ? longest_prefix_match+0x49f/0x650
[   63.749337][ T5225]  trie_delete_elem+0x546/0x6a0
[   63.754188][ T5225]  ? bpf_trace_run2+0x1fc/0x540
[   63.759030][ T5225]  bpf_prog_2c29ac5cdc6b1842+0x42/0x46
[   63.764476][ T5225]  bpf_trace_run2+0x2ec/0x540
[   63.769145][ T5225]  ? __pfx_bpf_trace_run2+0x10/0x10
[   63.774333][ T5225]  ? __pfx_debug_object_activate+0x10/0x10
[   63.780141][ T5225]  enqueue_timer+0x3ce/0x570
[   63.784725][ T5225]  __mod_timer+0x953/0xeb0
[   63.789134][ T5225]  ? __pfx___mod_timer+0x10/0x10
[   63.794059][ T5225]  ? ktime_get+0x3c/0xb0
[   63.798294][ T5225]  ? __asan_memset+0x23/0x50
[   63.802963][ T5225]  sk_reset_timer+0x23/0xc0
[   63.807551][ T5225]  tcp_schedule_loss_probe+0x448/0x590
[   63.813095][ T5225]  tcp_write_xmit+0x4308/0x6a10
[   63.817965][ T5225]  ? __virt_addr_valid+0x183/0x530
[   63.823103][ T5225]  ? __alloc_skb+0x2d5/0x440
[   63.827987][ T5225]  __tcp_push_pending_frames+0x9b/0x360
[   63.833544][ T5225]  tcp_sendmsg_locked+0x43b1/0x4e10
[   63.838754][ T5225]  ? __pfx_tcp_sendmsg_locked+0x10/0x10
[   63.844288][ T5225]  ? __local_bh_enable_ip+0x168/0x200
[   63.849653][ T5225]  ? do_raw_spin_unlock+0x13c/0x8b0
[   63.854843][ T5225]  tcp_sendmsg+0x30/0x50
[   63.859073][ T5225]  __sock_sendmsg+0x1a6/0x270
[   63.863747][ T5225]  sock_write_iter+0x2dd/0x400
[   63.868502][ T5225]  ? __pfx_sock_write_iter+0x10/0x10
[   63.873808][ T5225]  ? bpf_lsm_file_permission+0x9/0x10
[   63.879217][ T5225]  ? security_file_permission+0x7f/0xa0
[   63.884776][ T5225]  vfs_write+0xa72/0xc90
[   63.889033][ T5225]  ? __pfx_sock_write_iter+0x10/0x10
[   63.894311][ T5225]  ? __pfx_vfs_write+0x10/0x10
[   63.899060][ T5225]  ? __set_current_blocked+0x310/0x380
[   63.904542][ T5225]  ? __might_fault+0xc6/0x120
[   63.909258][ T5225]  ksys_write+0x1a0/0x2c0
[   63.913594][ T5225]  ? __pfx_ksys_write+0x10/0x10
[   63.918441][ T5225]  ? do_syscall_64+0x100/0x230
[   63.923201][ T5225]  ? do_syscall_64+0xb6/0x230
[   63.927952][ T5225]  do_syscall_64+0xf3/0x230
[   63.932568][ T5225]  ? clear_bhb_loop+0x35/0x90
[   63.937371][ T5225]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[   63.943669][ T5225] RIP: 0033:0x7f0b26316bf2
[   63.948107][ T5225] 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
[   63.967728][ T5225] RSP: 002b:00007ffd37923b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   63.976422][ T5225] RAX: ffffffffffffffda RBX: 000000000000002c RCX: 00007f0b26316bf2
[   63.985186][ T5225] RDX: 000000000000002c RSI: 000055b0691f5960 RDI: 0000000000000004
[   63.993349][ T5225] RBP: 000055b0691fede0 R08: 0000000000000000 R09: 0000000000000000
[   64.001485][ T5225] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b02f2c5aa4
[   64.009467][ T5225] R13: 000000000000003f R14: 000055b02f2c63e8 R15: 00007ffd37923bd8
[   64.017442][ T5225]  </TASK>