------------[ cut here ]------------ WARNING: CPU: 0 PID: 7991 at net/core/flow_dissector.c:1027 __skb_flow_dissect+0x97c/0x5920 net/core/flow_dissector.c:1022 Modules linked in: CPU: 0 PID: 7991 Comm: cmp Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 pstate: 42400005 (nZcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : __skb_flow_dissect+0x97c/0x5920 net/core/flow_dissector.c:1022 lr : __skb_flow_dissect+0x97c/0x5920 net/core/flow_dissector.c:1022 sp : ffff8000080068e0 x29: ffff800008006e90 x28: 0000000000000000 x27: 0000000000000002 x26: ffff800008006c10 x25: dfff800000000000 x24: ffff8000153851dc x23: 1ffff00002a70a3c x22: 1ffff00002a70a3c x21: 0000000000000000 x20: 0000000000000000 x19: ffff700001000d4c x18: 0000000000000000 x17: 00000000ffff0000 x16: ffff800011b8b618 x15: 0000000000000000 x14: 000000000000000a x13: 1ffff00002a70071 x12: 00000000231dac20 x11: ff0080000fece3bc x10: 0000000000000000 x9 : ffff80000fece3bc x8 : ffff0000d3653800 x7 : ffff80000fed521c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff8000121e0140 x0 : 0000000000000001 Call trace: __skb_flow_dissect+0x97c/0x5920 net/core/flow_dissector.c:1022 skb_flow_dissect_flow_keys include/linux/skbuff.h:1531 [inline] ___skb_get_hash+0x7c/0x5e0 net/core/flow_dissector.c:1705 __skb_get_hash+0xb8/0x22c net/core/flow_dissector.c:1770 skb_get_hash include/linux/skbuff.h:1573 [inline] nft_trace_init+0x190/0x36c net/netfilter/nf_tables_trace.c:292 nft_do_chain+0x12d4/0x1364 net/netfilter/nf_tables_core.c:243 nft_do_chain_ipv6+0x13c/0x18c net/netfilter/nft_chain_filter.c:107 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xc8/0x208 net/netfilter/core.c:614 nf_hook include/linux/netfilter.h:257 [inline] __ip6_local_out+0x6c0/0x7dc net/ipv6/output_core.c:149 ip6_local_out+0x3c/0x15c net/ipv6/output_core.c:159 ip6tunnel_xmit include/net/ip6_tunnel.h:161 [inline] udp_tunnel6_xmit_skb+0x424/0x910 net/ipv6/ip6_udp_tunnel.c:110 tipc_udp_xmit+0x470/0x930 net/tipc/udp_media.c:220 tipc_udp_send_msg+0x214/0x36c net/tipc/udp_media.c:271 tipc_bearer_xmit_skb+0x240/0x380 net/tipc/bearer.c:577 tipc_disc_timeout+0x4e8/0x630 net/tipc/discover.c:338 call_timer_fn+0x1b8/0x96c kernel/time/timer.c:1701 expire_timers kernel/time/timer.c:1752 [inline] __run_timers+0x478/0x6d8 kernel/time/timer.c:2023 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2036 handle_softirqs+0x318/0xc90 kernel/softirq.c:596 __do_softirq+0x14/0x20 kernel/softirq.c:630 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:897 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:85 invoke_softirq kernel/softirq.c:477 [inline] __irq_exit_rcu+0x23c/0x430 kernel/softirq.c:679 irq_exit_rcu+0x14/0x84 kernel/softirq.c:691 __el1_irq arch/arm64/kernel/entry-common.c:472 [inline] el1_interrupt+0x38/0x54 arch/arm64/kernel/entry-common.c:486 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:491 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:581 arch_local_irq_restore+0x8/0x10 arch/arm64/include/asm/irqflags.h:122 lock_is_held include/linux/lockdep.h:283 [inline] mt_locked lib/maple_tree.c:-1 [inline] mt_slot lib/maple_tree.c:816 [inline] mas_slot lib/maple_tree.c:849 [inline] mt_validate_nulls lib/maple_tree.c:7193 [inline] mt_validate+0x3dc0/0x4664 lib/maple_tree.c:7249 validate_mm_mt+0xc8/0x3bc mm/mmap.c:295 validate_mm+0xc8/0x29c mm/mmap.c:332 __vma_adjust+0x12ac/0x16fc mm/mmap.c:879 vma_adjust include/linux/mm.h:2810 [inline] __split_vma+0x328/0x44c mm/mmap.c:-1 do_mas_align_munmap+0x2e4/0xf28 mm/mmap.c:2480 do_mas_munmap mm/mmap.c:2650 [inline] __mmap_region mm/mmap.c:2698 [inline] mmap_region+0x6a0/0x1860 mm/mmap.c:2916 do_mmap+0xa64/0x1210 mm/mmap.c:1436 vm_mmap_pgoff+0x194/0x298 mm/util.c:520 ksys_mmap_pgoff+0x364/0x5a0 mm/mmap.c:1482 __do_sys_mmap arch/arm64/kernel/sys.c:28 [inline] __se_sys_mmap arch/arm64/kernel/sys.c:21 [inline] __arm64_sys_mmap+0x108/0x120 arch/arm64/kernel/sys.c:21 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 4425 hardirqs last enabled at (4424): [] __local_bh_enable_ip+0x1f8/0x37c kernel/softirq.c:426 hardirqs last disabled at (4425): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (3662): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (4385): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]---