watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:21711] Modules linked in: irq event stamp: 2330111 hardirqs last enabled at (2330110): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2330111): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2293820): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2293823): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2293823): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 21711 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 RIP: 0010:unwind_next_frame+0xae9/0x1400 arch/x86/kernel/unwind_orc.c:548 Code: 10 48 89 ce 48 c1 ee 03 0f b6 14 16 4c 89 c6 83 e6 07 40 38 f0 40 0f 9e c6 84 c0 0f 95 c0 40 84 c6 0f 85 13 07 00 00 48 89 c8 <83> e0 07 38 c2 40 0f 9e c6 84 d2 0f 95 c0 40 84 c6 0f 85 f9 06 00 RSP: 0018:ffff8880ba106ef8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffffffff8b90f76b RBX: 1ffff11017420de8 RCX: ffffffff8b90f76b RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff8880ba107080 RBP: 0000000000000001 R08: ffffffff8b90f76a R09: ffffffff8b90f766 R10: ffff8880ba107087 R11: 0000000000074071 R12: ffff888050997b08 R13: ffff8880ba10705d R14: ffff8880ba107028 R15: ffffffff8b90f766 FS: 0000555556368400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb13a770f60 CR3: 00000000986fc000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] sctp_chunkify+0x4b/0x2e0 net/sctp/sm_make_chunk.c:1349 _sctp_make_chunk+0x149/0x260 net/sctp/sm_make_chunk.c:1422 sctp_make_control net/sctp/sm_make_chunk.c:1458 [inline] sctp_make_abort+0x3f/0x410 net/sctp/sm_make_chunk.c:970 sctp_sf_tabort_8_4_8.constprop.0+0x4e/0x420 net/sctp/sm_statefuns.c:3411 sctp_sf_ootb+0x5ba/0x670 net/sctp/sm_statefuns.c:3632 sctp_do_sm+0x162/0x5110 net/sctp/sm_sideeffect.c:1167 sctp_endpoint_bh_rcv+0x405/0x880 net/sctp/endpointola.c:457 sctp_inq_push+0x1da/0x270 net/sctp/inqueue.c:95 sctp_rcv+0x1642/0x3300 net/sctp/input.c:268 ip_local_deliver_finish+0x495/0xc00 net/ipv4/ip_input.c:215 NF_HOOK include/linux/netfilter.h:289 [inline] ip_local_deliver+0x188/0x500 net/ipv4/ip_input.c:256 dst_input include/net/dst.h:461 [inline] ip_rcv_finish+0x1ca/0x2e0 net/ipv4/ip_input.c:414 NF_HOOK include/linux/netfilter.h:289 [inline] ip_rcv+0xca/0x3c0 net/ipv4/ip_input.c:524 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066 process_backlog+0x241/0x700 net/core/dev.c:5849 napi_poll net/core/dev.c:6280 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:preempt_schedule_irq+0xa6/0x140 kernel/sched/core.c:3744 Code: 00 00 e8 3d 04 29 f9 e8 58 3f 4f f9 4c 89 e8 48 c1 e8 03 80 3c 18 00 75 69 48 83 3d 9b 18 d9 01 00 74 5b fb 66 0f 1f 44 00 00 01 00 00 00 e8 40 d1 ff ff 48 c7 c0 90 82 f1 89 48 c1 e8 03 80 RSP: 0018:ffff8880509976a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888045a3eb84 RBP: ffffed1008b47c60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888045a3e300 R13: ffffffff89f18298 R14: 0000000000000000 R15: 0000000000000000 retint_kernel+0x1b/0x2d RIP: 0010:pud_pfn_mask arch/x86/include/asm/pgtable_types.h:405 [inline] RIP: 0010:pud_flags_mask arch/x86/include/asm/pgtable_types.h:413 [inline] RIP: 0010:pud_flags arch/x86/include/asm/pgtable_types.h:418 [inline] RIP: 0010:pud_bad arch/x86/include/asm/pgtable.h:873 [inline] RIP: 0010:pud_none_or_clear_bad include/asm-generic/pgtable.h:553 [inline] RIP: 0010:zap_pud_range mm/memory.c:1490 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1513 [inline] RIP: 0010:unmap_page_range+0x547/0x2c50 mm/memory.c:1534 Code: 85 db 0f 84 79 0b 00 00 e8 46 f4 d6 ff 48 89 eb 31 ff 49 bc 00 00 00 c0 ff ff 0f 00 81 e3 80 00 00 00 48 89 de e8 b9 f5 d6 ff <48> 85 db 48 b8 ff 0f 00 00 00 00 f0 ff 48 bb ff ff ff 3f 00 00 f0 RSP: 0018:ffff888050997778 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff818b9147 RDX: 0000000000000000 RSI: ffff888045a3e300 RDI: 0000000000000007 RBP: 00000000b4c08067 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: 000fffffc0000000 R13: 00007fb29cd28000 R14: dffffc0000000000 R15: 00007fb29cd48000 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode+0x277/0x2d0 arch/x86/entry/common.c:198 retint_user+0x8/0x18 RIP: 0033:0x7fb29e7823ef Code: 16 00 00 49 89 d7 89 d5 75 37 b8 00 00 00 80 48 01 d0 48 3d ff ff ff 7e 0f 87 2a 02 00 00 44 89 c0 c1 e8 10 44 31 c0 83 f0 3d <8d> 04 c0 89 c7 c1 ef 04 31 f8 69 c0 2d eb d4 27 31 c5 c1 e8 0f 31 RSP: 002b:00007ffccf89da20 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000086e59b4c RBX: 00007fb29e8f5018 RCX: 0000001b30720000 RDX: ffffffff83772075 RSI: 0000001b30727610 RDI: 000000000000ce07 RBP: 0000000083772075 R08: ffffffff86e51d94 R09: 00000000068c024c R10: 000f28aab33276a0 R11: 0000000000000001 R12: 00007fb29e8e9000 R13: 0000000000000001 R14: 000000000000ce07 R15: ffffffff83772075 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60