watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz.4.49:539] Modules linked in: CPU: 0 PID: 539 Comm: syz.4.49 Not tainted 5.4.274-syzkaller-00003-g51e9abf68baf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:ndisc_hash+0x1/0x230 net/ipv6/ndisc.c:317 Code: 84 00 00 00 00 00 0f 1f 00 be 02 00 00 00 48 c7 c7 d0 c1 3f 86 e8 af 4a b9 fd c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <41> 57 41 56 41 55 41 54 53 49 89 d6 48 89 f3 49 89 ff 48 bd 00 00 RSP: 0018:ffff8881f6e09710 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8881efae1380 RBX: ffffffff863fc270 RCX: ffff8881eb484ec0 RDX: ffff8881efae138c RSI: ffff8881da9d8000 RDI: ffff8881da7b8578 RBP: 0000000000000400 R08: ffffffff8382f287 R09: fffffbfff0c7f88b R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff863fc260 R13: ffff8881da7b8400 R14: 00000000000000a7 R15: dffffc0000000000 FS: 00007fc8a16676c0(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffeb67250d8 CR3: 00000001e34b4000 CR4: 00000000003406b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ___neigh_create+0x1136/0x1ae0 net/core/neighbour.c:633 ip6_finish_output2+0x965/0x18e0 net/ipv6/ip6_output.c:141 NF_HOOK_COND include/linux/netfilter.h:292 [inline] ip6_output+0x1b3/0x430 net/ipv6/ip6_output.c:248 dst_output include/net/dst.h:438 [inline] NF_HOOK include/linux/netfilter.h:303 [inline] ndisc_send_skb+0x702/0xc30 net/ipv6/ndisc.c:509 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3953 call_timer_fn+0x36/0x390 kernel/time/timer.c:1448 expire_timers kernel/time/timer.c:1493 [inline] __run_timers+0x879/0xbe0 kernel/time/timer.c:1817 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1830 __do_softirq+0x23b/0x6b7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x195/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:538 [inline] smp_apic_timer_interrupt+0x11a/0x460 arch/x86/kernel/apic/apic.c:1149 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:834 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x45/0x60 kernel/locking/spinlock.c:199 Code: 08 00 74 0c 48 c7 c7 90 3b eb 85 e8 a5 12 43 fd 48 83 3d fd 2c 9a 01 00 74 29 48 89 df e8 13 e8 fa fc 66 90 fb bf 01 00 00 00 96 d4 f3 fc 65 8b 05 db 7e b1 7b 85 c0 74 02 5b c3 e8 64 45 af RSP: 0018:ffff8881ebfef190 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000001 RBX: ffff8881f6e57b40 RCX: dffffc0000000000 RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff8881ebfef1f0 R08: ffffffff81799989 R09: fffffbfff0c96e5b R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f6e57b40 R13: ffff8881eb484ec0 R14: dffffc0000000000 R15: 0000000000000000 finish_lock_switch kernel/sched/core.c:3347 [inline] finish_task_switch+0x130/0x590 kernel/sched/core.c:3447 context_switch kernel/sched/core.c:3611 [inline] __schedule+0xb0d/0x1320 kernel/sched/core.c:4307 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:4558 retint_kernel+0x1b/0x1b RIP: 0010:release_pages+0x158/0xb20 mm/swap.c:777 Code: 00 e8 dc f3 e1 ff 48 83 c3 08 49 8d 3c 1c 48 89 f8 48 c1 e8 03 42 80 3c 30 00 74 05 e8 d1 d8 11 00 48 89 5c 24 38 4d 8b 3c 1c <4d> 85 ed 74 2d 4c 89 eb 4c 8b 6c 24 40 41 ff c5 bf 20 00 00 00 44 RSP: 0018:ffff8881ebfef440 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff1103de96af5 RBX: 0000000000000798 RCX: ffff8881eb484ec0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881ef4b57a8 RBP: ffff8881ebfef550 R08: ffffffff81824954 R09: fffff94000ef713f R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881ef4b5010 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffea00077b8a00 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline] tlb_flush_mmu_free mm/mmu_gather.c:189 [inline] tlb_flush_mmu+0xc8/0x170 mm/mmu_gather.c:196 zap_pte_range mm/memory.c:1173 [inline] zap_pmd_range mm/memory.c:1222 [inline] zap_pud_range mm/memory.c:1251 [inline] zap_p4d_range mm/memory.c:1272 [inline] unmap_page_range+0x1d29/0x2620 mm/memory.c:1293 unmap_single_vma mm/memory.c:1338 [inline] unmap_vmas+0x355/0x4b0 mm/memory.c:1370 exit_mmap+0x2bc/0x520 mm/mmap.c:3191 __mmput+0x8e/0x2c0 kernel/fork.c:1101 exit_mm kernel/exit.c:536 [inline] do_exit+0xc08/0x2bc0 kernel/exit.c:846 do_group_exit+0x138/0x300 kernel/exit.c:982 get_signal+0xdb1/0x1440 kernel/signal.c:2735 do_signal+0xb0/0x11f0 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0xc0/0x1a0 arch/x86/entry/common.c:159 prepare_exit_to_usermode+0x199/0x200 arch/x86/entry/common.c:194 ret_from_intr+0x1c/0x1c RIP: 0033:0x7fc8a23e5b99 Code: Bad RIP value. RSP: 002b:00007fc8a1667048 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 00007fc8a2573fa0 RCX: 00007fc8a23e5b99 RDX: 00000000200006c0 RSI: 0000000000005452 RDI: 0000000000000005 RBP: 00007fc8a246677e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fc8a2573fa0 R15: 00007ffe7d4ed2d8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2227 Comm: syz.4.539 Not tainted 5.4.274-syzkaller-00003-g51e9abf68baf #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:interrupt_entry+0x3/0xac arch/x86/entry/entry_64.S:519 Code: 84 e9 cd 00 00 00 90 6a 83 e9 c5 00 00 00 90 6a 82 e9 bd 00 00 00 90 6a 81 e9 b5 00 00 00 90 6a 80 e9 ad 00 00 00 90 0f 01 ca f6 44 24 18 03 74 2d 0f 01 f8 0f ae e8 57 48 89 e7 65 48 8b 24 RSP: 0018:ffff8881f6f09228 EFLAGS: 00000046 RAX: 1ffff9200000b606 RBX: ffffc9000005b000 RCX: 0000000000000302 RDX: ffff8881d695ee40 RSI: ffff8881eccf7438 RDI: ffffc9000005b030 RBP: 0000000000000000 R08: ffffffff816dc4e2 R09: ffffed103edeb135 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffa00a8244 R13: dffffc0000000000 R14: 00007f5cecefa879 R15: ffff8881eccf7438 FS: 00007f5cec2ab6c0(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5cecefa84f CR3: 0000000005e0e000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RIP: 0010:bpf_prog_ebpf_jited include/linux/filter.h:1067 [inline] RIP: 0010:bpf_get_prog_addr_region kernel/bpf/core.c:539 [inline] RIP: 0010:bpf_tree_comp kernel/bpf/core.c:605 [inline] RIP: 0010:__lt_find include/linux/rbtree_latch.h:115 [inline] RIP: 0010:latch_tree_find include/linux/rbtree_latch.h:208 [inline] RIP: 0010:bpf_prog_kallsyms_find kernel/bpf/core.c:679 [inline] RIP: 0010:is_bpf_text_address+0xe0/0x260 kernel/bpf/core.c:714 Code: 28 00 74 08 48 89 df e8 1e 5c 26 00 48 8b 1b 48 8d 7b 30 48 89 f8 48 c1 e8 03 42 80 3c 28 00 74 05 e8 04 5c 26 00 4c 8b 63 30 <48> 83 c3 02 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 ab 00