------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2896! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 4725 Comm: udevd Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/23/2026 pstate: 43400005 (nZcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __pskb_pull_tail+0x143c/0x1440 net/core/skbuff.c:2895 lr : __pskb_pull_tail+0x143c/0x1440 net/core/skbuff.c:2895 sp : ffff80008f857550 x29: ffff80008f8575a0 x28: ffff0000e7e6e20c x27: dfff800000000000 x26: ffff0000e7e6e210 x25: 1fffe0001cfcdc41 x24: 0000000000002ea4 x23: ffff0000e7e6e140 x22: 00000000fffffff2 x21: 0000000058000000 x20: ffff0000e7e6e210 x19: ffff0000f6f28000 x18: ffff8001237ae000 x17: ffff0001acf6ce07 x16: ffff0000d3c41d94 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000100 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : ffff0000f6f2af38 x4 : ffff0000c550ca38 x3 : ffff800084c1a50c x2 : 00000000fffffff2 x1 : ffff0000d3c41d80 x0 : 0000000000000000 Call trace: __pskb_pull_tail+0x143c/0x1440 net/core/skbuff.c:2895 (P) __skb_linearize include/linux/skbuff.h:4013 [inline] skb_linearize include/linux/skbuff.h:4025 [inline] sctp_rcv+0x358/0x13cc net/sctp/input.c:120 sctp4_rcv+0x4c/0x68 net/sctp/protocol.c:1146 ip_protocol_deliver_rcu+0x20c/0x468 net/ipv4/ip_input.c:207 ip_local_deliver_finish+0x320/0x65c net/ipv4/ip_input.c:241 NF_HOOK+0x308/0x398 include/linux/netfilter.h:325 ip_local_deliver+0x128/0x188 net/ipv4/ip_input.c:262 dst_input include/net/dst.h:481 [inline] ip_rcv_finish+0x20c/0x230 net/ipv4/ip_input.c:492 NF_HOOK+0x308/0x398 include/linux/netfilter.h:325 ip_rcv+0x7c/0x9c net/ipv4/ip_input.c:612 __netif_receive_skb_one_core+0xc8/0x110 net/core/dev.c:6297 __netif_receive_skb+0x34/0x128 net/core/dev.c:6410 process_backlog+0x588/0x14e0 net/core/dev.c:6761 __napi_poll+0xb4/0x328 net/core/dev.c:7830 napi_poll net/core/dev.c:7893 [inline] net_rx_action+0x5b0/0xc14 net/core/dev.c:8050 handle_softirqs+0x324/0xcbc kernel/softirq.c:645 __do_softirq+0x14/0x20 kernel/softirq.c:679 ____do_softirq+0x10/0x1c arch/arm64/kernel/irq.c:78 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:901 do_softirq_own_stack+0x1c/0x28 arch/arm64/kernel/irq.c:83 invoke_softirq kernel/softirq.c:526 [inline] __irq_exit_rcu+0x10c/0x318 kernel/softirq.c:758 irq_exit_rcu+0x14/0x84 kernel/softirq.c:775 __el1_irq arch/arm64/kernel/entry-common.c:569 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:581 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:586 el1h_64_irq+0x78/0x7c arch/arm64/kernel/entry.S:602 locks_lock_inode_wait+0x0/0x400 fs/locks.c:-1 (P) __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140 el0_svc+0x60/0x1d8 arch/arm64/kernel/entry-common.c:796 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:815 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:606 Code: aa1603e0 96d23e52 d4210000 96e8864d (d4210000) ---[ end trace 0000000000000000 ]---