Warning: Permanently added '10.128.0.175' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 71.050495][ T30] audit: type=1400 audit(1747514587.534:66): avc: denied { execmem } for pid=5804 comm="syz-executor403" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 71.070357][ T30] audit: type=1400 audit(1747514587.534:67): avc: denied { write } for pid=5805 comm="syz-executor403" path="pipe:[3793]" dev="pipefs" ino=3793 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 executing program executing program [ 71.094740][ T30] audit: type=1400 audit(1747514587.534:68): avc: denied { create } for pid=5805 comm="syz-executor403" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 [ 71.116835][ T30] audit: type=1400 audit(1747514587.534:69): avc: denied { write } for pid=5805 comm="syz-executor403" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 executing program executing program executing program executing program [ 71.139615][ T30] audit: type=1400 audit(1747514587.534:70): avc: denied { setopt } for pid=5805 comm="syz-executor403" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=tipc_socket permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 177.351710][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 177.358387][ C0] rcu: 0-...!: (10500 ticks this GP) idle=af14/1/0x4000000000000000 softirq=14503/14503 fqs=0 [ 177.369017][ C0] rcu: (t=10500 jiffies g=6941 q=30 ncpus=2) [ 177.375160][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g6941 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 177.387382][ C0] rcu: Possible timer handling issue on cpu=0 timer-softirq=2204 [ 177.395169][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g6941 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 177.406438][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 177.416393][ C0] rcu: RCU grace-period kthread stack dump: [ 177.422267][ C0] task:rcu_preempt state:I stack:27704 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000 [ 177.434184][ C0] Call Trace: [ 177.437471][ C0] [ 177.440399][ C0] __schedule+0x116f/0x5de0 [ 177.444945][ C0] ? find_held_lock+0x2b/0x80 [ 177.449649][ C0] ? __lock_acquire+0x5ca/0x1ba0 [ 177.454592][ C0] ? __pfx___schedule+0x10/0x10 [ 177.459443][ C0] ? find_held_lock+0x2b/0x80 [ 177.464116][ C0] ? schedule+0x2d7/0x3a0 [ 177.468449][ C0] schedule+0xe7/0x3a0 [ 177.472517][ C0] schedule_timeout+0x123/0x290 [ 177.477362][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 177.482728][ C0] ? __pfx_process_timeout+0x10/0x10 [ 177.488021][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x80 [ 177.493825][ C0] ? prepare_to_swait_event+0xf5/0x480 [ 177.499288][ C0] rcu_gp_fqs_loop+0x1ea/0xb00 [ 177.504059][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 177.509342][ C0] ? rcu_gp_init+0xc76/0x15a0 [ 177.514029][ C0] ? rcu_is_watching+0x12/0xc0 [ 177.518787][ C0] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 177.524593][ C0] rcu_gp_kthread+0x270/0x380 [ 177.529274][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 177.534473][ C0] ? rcu_is_watching+0x12/0xc0 [ 177.539232][ C0] ? lockdep_hardirqs_on+0x7c/0x110 [ 177.544429][ C0] ? __kthread_parkme+0x19e/0x250 [ 177.549459][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 177.554663][ C0] kthread+0x3c2/0x780 [ 177.558725][ C0] ? __pfx_kthread+0x10/0x10 [ 177.563313][ C0] ? __pfx_kthread+0x10/0x10 [ 177.567897][ C0] ? __pfx_kthread+0x10/0x10 [ 177.572481][ C0] ? __pfx_kthread+0x10/0x10 [ 177.577061][ C0] ? rcu_is_watching+0x12/0xc0 [ 177.581819][ C0] ? __pfx_kthread+0x10/0x10 [ 177.586401][ C0] ret_from_fork+0x45/0x80 [ 177.590816][ C0] ? __pfx_kthread+0x10/0x10 [ 177.595397][ C0] ret_from_fork_asm+0x1a/0x30 [ 177.600182][ C0] [ 177.603228][ C0] CPU: 0 UID: 0 PID: 6150 Comm: syz-executor403 Not tainted 6.15.0-rc6-syzkaller-00278-g172a9d94339c #0 PREEMPT(full) [ 177.603247][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 177.603257][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 177.603280][ C0] Code: f5 61 02 e9 53 fc 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d f3 bf 1c 00 fb f4 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 [ 177.603295][ C0] RSP: 0018:ffffc9000475f8d8 EFLAGS: 000002d3 [ 177.603313][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000002 [ 177.603323][ C0] RDX: ffff888024c64880 RSI: ffffffff81693571 RDI: ffffffff8bf4a1a0 [ 177.603334][ C0] RBP: ffff888023b0bbc0 R08: 0000000000000001 R09: 0000000000000001 [ 177.603343][ C0] R10: ffffffff90852d17 R11: 0000000000000000 R12: 0000000000000003 [ 177.603353][ C0] R13: 0000000000000003 R14: ffff8880b843ad00 R15: ffffed1004761778 [ 177.603364][ C0] FS: 00007f188a69e6c0(0000) GS:ffff8881249da000(0000) knlGS:0000000000000000 [ 177.603381][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 177.603391][ C0] CR2: 0000200000000000 CR3: 0000000075b90000 CR4: 00000000003526f0 [ 177.603402][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 177.603411][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 177.603420][ C0] Call Trace: [ 177.603425][ C0] [ 177.603431][ C0] kvm_wait+0x186/0x1f0 [ 177.603457][ C0] __pv_queued_spin_lock_slowpath+0x4e1/0xcf0 [ 177.603487][ C0] ? __pfx___pv_queued_spin_lock_slowpath+0x10/0x10 [ 177.603521][ C0] do_raw_spin_lock+0x20e/0x2b0 [ 177.603540][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 177.603557][ C0] ? __pfx___might_resched+0x10/0x10 [ 177.603585][ C0] lock_sock_nested+0x5f/0xf0 [ 177.603617][ C0] ? tipc_sendstream+0x41/0x70 [ 177.603645][ C0] tipc_sendstream+0x41/0x70 [ 177.603664][ C0] ____sys_sendmsg+0xa95/0xc70 [ 177.603690][ C0] ? copy_msghdr_from_user+0x10a/0x160 [ 177.603708][ C0] ? __pfx_____sys_sendmsg+0x10/0x10 [ 177.603733][ C0] ? kfree+0x252/0x4d0 [ 177.603772][ C0] ___sys_sendmsg+0x134/0x1d0 [ 177.603792][ C0] ? __pfx____sys_sendmsg+0x10/0x10 [ 177.603837][ C0] ? __might_fault+0xb0/0x190 [ 177.603864][ C0] __sys_sendmsg+0x16d/0x220 [ 177.603883][ C0] ? __pfx___sys_sendmsg+0x10/0x10 [ 177.603917][ C0] do_syscall_64+0xcd/0x260 [ 177.603945][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 177.603961][ C0] RIP: 0033:0x7f188a6e53e9 [ 177.603976][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 177.603995][ C0] RSP: 002b:00007f188a69e218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 177.604010][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f188a6e53e9 [ 177.604019][ C0] RDX: 0000000000000000 RSI: 00002000000003c0 RDI: 0000000000000004 [ 177.604029][ C0] RBP: 00007f188a76f328 R08: 0000000000000000 R09: 0000000000000000 [ 177.604038][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00002000000003c0 [ 177.604047][ C0] R13: 00007f188a76f320 R14: 00007f188a76f32c R15: 0000200000000004 [ 177.604072][ C0] [ 177.604078][ C0] Sending NMI from CPU 0 to CPUs 1: [ 177.604104][ C1] NMI backtrace for cpu 1 [ 177.604113][ C1] CPU: 1 UID: 0 PID: 6151 Comm: syz-executor403 Not tainted 6.15.0-rc6-syzkaller-00278-g172a9d94339c #0 PREEMPT(full) [ 177.604127][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 177.604134][ C1] RIP: 0010:check_preemption_disabled+0x8/0xe0 [ 177.604153][ C1] Code: 37 08 85 c0 74 04 90 0f 0b 90 e9 53 fc ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 54 55 53 48 83 ec 08 <65> 8b 1d 85 24 37 08 65 8b 05 7a 24 37 08 a9 ff ff ff 7f 74 0f 48 [ 177.604164][ C1] RSP: 0018:ffffc900047beb80 EFLAGS: 00000082 [ 177.604174][ C1] RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff81c30b8f [ 177.604181][ C1] RDX: fffffbfff210a5a3 RSI: ffffffff8bf4a120 RDI: ffffffff8bf4a160 [ 177.604189][ C1] RBP: ffffffff8b0f10a1 R08: 0000000000000000 R09: fffffbfff210a5a2 [ 177.604197][ C1] R10: ffffffff90852d17 R11: 0000000000000000 R12: 0000000049f14165 [ 177.604205][ C1] R13: dffffc0000000000 R14: 0000000049f14165 R15: ffffc900047bef80 [ 177.604213][ C1] FS: 00007f188a67d6c0(0000) GS:ffff888124ada000(0000) knlGS:0000000000000000 [ 177.604227][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 177.604242][ C1] CR2: 00007f188a67dd58 CR3: 0000000075b90000 CR4: 00000000003526f0 [ 177.604249][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 177.604256][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 177.604263][ C1] Call Trace: [ 177.604267][ C1] [ 177.604272][ C1] ? tipc_sk_rcv+0x2b1/0x1bd0 [ 177.604284][ C1] rcu_is_watching+0x12/0xc0 [ 177.604298][ C1] ? tipc_sk_rcv+0x2b1/0x1bd0 [ 177.604310][ C1] trace_irq_disable.constprop.0+0xd4/0x120 [ 177.604330][ C1] ? tipc_sk_rcv+0x2b1/0x1bd0 [ 177.604342][ C1] __local_bh_enable_ip+0xcd/0x120 [ 177.604361][ C1] tipc_sk_rcv+0x2b1/0x1bd0 [ 177.604377][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 177.604396][ C1] ? find_held_lock+0x2b/0x80 [ 177.604410][ C1] ? lockdep_init_map_type+0x5c/0x280 [ 177.604422][ C1] tipc_node_xmit+0x232/0xfc0 [ 177.604439][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 177.604460][ C1] ? tipc_node_distr_xmit+0x177/0x3c0 [ 177.604474][ C1] tipc_node_distr_xmit+0x177/0x3c0 [ 177.604491][ C1] ? __pfx_tipc_node_distr_xmit+0x10/0x10 [ 177.604510][ C1] ? mark_held_locks+0x49/0x80 [ 177.604528][ C1] tipc_sk_rcv+0x9d9/0x1bd0 [ 177.604544][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 177.604563][ C1] ? find_held_lock+0x2b/0x80 [ 177.604577][ C1] ? lockdep_init_map_type+0x5c/0x280 [ 177.604590][ C1] tipc_node_xmit+0x232/0xfc0 [ 177.604606][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 177.604627][ C1] ? find_held_lock+0x2b/0x80 [ 177.604641][ C1] ? net_generic+0xea/0x2a0 [ 177.604659][ C1] ? tipc_sk_push_backlog+0x318/0x9e0 [ 177.604675][ C1] tipc_sk_push_backlog+0x318/0x9e0 [ 177.604691][ C1] ? tsk_peer_msg+0x267/0x3c0 [ 177.604709][ C1] tipc_sk_filter_rcv+0x25a8/0x3020 [ 177.604727][ C1] ? __pfx_tipc_sk_filter_rcv+0x10/0x10 [ 177.604749][ C1] tipc_sk_rcv+0xfed/0x1bd0 [ 177.604765][ C1] ? __pfx_tipc_sk_rcv+0x10/0x10 [ 177.604784][ C1] ? find_held_lock+0x2b/0x80 [ 177.604798][ C1] ? lockdep_init_map_type+0x5c/0x280 [ 177.604811][ C1] tipc_node_xmit+0x232/0xfc0 [ 177.604825][ C1] ? tipc_sk_filtering+0x420/0x520 [ 177.604838][ C1] ? __pfx_tipc_node_xmit+0x10/0x10 [ 177.604853][ C1] ? trace_tipc_sk_rej_msg+0x1e5/0x270 [ 177.604870][ C1] ? tipc_node_distr_xmit+0x177/0x3c0 [ 177.604885][ C1] tipc_node_distr_xmit+0x177/0x3c0 [ 177.604900][ C1] ? __lock_acquire+0x5ca/0x1ba0 [ 177.604918][ C1] ? __pfx_tipc_node_distr_xmit+0x10/0x10 [ 177.604936][ C1] ? find_held_lock+0x2b/0x80 [ 177.604952][ C1] tipc_sk_backlog_rcv+0x16f/0x1e0 [ 177.604966][ C1] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10 [ 177.604979][ C1] ? __lock_acquire+0xaa4/0x1ba0 [ 177.605000][ C1] ? __pfx_tipc_sk_backlog_rcv+0x10/0x10 [ 177.605014][ C1] __release_sock+0x362/0x400 [ 177.605030][ C1] release_sock+0x5a/0x220 [ 177.605042][ C1] sk_setsockopt+0xd5f/0x3810 [ 177.605059][ C1] ? __pfx_sk_setsockopt+0x10/0x10 [ 177.605073][ C1] ? selinux_netlbl_socket_setsockopt+0x183/0x470 [ 177.605107][ C1] ? __pfx_selinux_netlbl_socket_setsockopt+0x10/0x10 [ 177.605126][ C1] ? __lock_acquire+0x5ca/0x1ba0 [ 177.605145][ C1] ? selinux_socket_setsockopt+0x6a/0x80 [ 177.605162][ C1] do_sock_setsockopt+0x3f2/0x470 [ 177.605178][ C1] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 177.605198][ C1] __sys_setsockopt+0x1a0/0x230 [ 177.605212][ C1] __x64_sys_setsockopt+0xbd/0x160 [ 177.605224][ C1] ? do_syscall_64+0x91/0x260 [ 177.605245][ C1] ? lockdep_hardirqs_on+0x7c/0x110 [ 177.605260][ C1] do_syscall_64+0xcd/0x260 [ 177.605277][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 177.605288][ C1] RIP: 0033:0x7f188a6e53e9 [ 177.605301][ C1] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 [ 177.605312][ C1] RSP: 002b:00007f188a67d218 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 177.605323][ C1] RAX: ffffffffffffffda RBX: 00007f188a67d6c0 RCX: 00007f188a6e53e9 [ 177.605330][ C1] RDX: 0000000000000021 RSI: 0000000000000001 RDI: 0000000000000003 [ 177.605337][ C1] RBP: 00007f188a76f338 R08: 0000000000000004 R09: 0000000000000000 [ 177.605344][ C1] R10: 0000200000000540 R11: 0000000000000246 R12: 00002000000003c0 [ 177.605351][ C1] R13: 00007f188a76f330 R14: 00007f188a76f33c R15: 0000200000000004 [ 177.605363][ C1] [ 177.605369][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.265 msecs