Unable to handle kernel paging request at virtual address 00000000fffd0d60 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000143686000 [00000000fffd0d60] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 1873 Comm: kworker/u4:5 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 Workqueue: netns cleanup_net pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ip_mc_hash_remove net/ipv4/igmp.c:1428 [inline] pc : __ip_mc_dec_group+0x328/0x604 net/ipv4/igmp.c:1688 lr : ip_mc_hash_remove net/ipv4/igmp.c:1428 [inline] lr : __ip_mc_dec_group+0x2b8/0x604 net/ipv4/igmp.c:1688 sp : ffff8000257c7520 x29: ffff8000257c7530 x28: 1fffe0001eac1684 x27: dfff800000000000 x26: 000000001fffa1ac x25: ffff800013a6df80 x24: ffff800013a6df60 x23: 00000000fffd0d60 x22: ffff0000f560b420 x21: ffff800017a8a000 x20: ffff0000ca58b600 x19: ffff0000f560b400 x18: ffff800011abbcc0 x17: ffff8000181f9000 x16: ffff8000082d0e24 x15: 0000000000000000 x14: 000000000000030a x13: 1ffff00002a180b1 x12: 0000000000ff0100 x11: ff0080001054cdb0 x10: 0000000000000000 x9 : ffff80001054cdb0 x8 : 0000000000000000 x7 : ffff80000a895578 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff8000082c8814 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000001 Call trace: ip_mc_hash_remove net/ipv4/igmp.c:1428 [inline] __ip_mc_dec_group+0x328/0x604 net/ipv4/igmp.c:1688 ip_mc_dec_group include/linux/igmp.h:135 [inline] ip_mc_down+0x2d4/0x3b8 net/ipv4/igmp.c:1752 inetdev_event+0x228/0x12ec net/ipv4/devinet.c:1602 notifier_call_chain kernel/notifier.c:87 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:455 call_netdevice_notifiers_info net/core/dev.c:2001 [inline] call_netdevice_notifiers_extack net/core/dev.c:2039 [inline] call_netdevice_notifiers net/core/dev.c:2053 [inline] dev_close_many+0x2cc/0x440 net/core/dev.c:1601 unregister_netdevice_many+0x3c4/0x1740 net/core/dev.c:10964 vti6_exit_batch_net+0x3ac/0x3fc net/ipv6/ip6_vti.c:1191 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x644/0xa74 net/core/net_namespace.c:640 process_one_work+0x7f4/0x13a8 kernel/workqueue.c:2292 worker_thread+0x8c8/0xfbc kernel/workqueue.c:2439 kthread+0x250/0x2d8 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 Code: 387b6b48 34000068 aa1703e0 960e26bf (f94002e8) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 387b6b48 ldrb w8, [x26, x27] 4: 34000068 cbz w8, 0x10 8: aa1703e0 mov x0, x23 c: 960e26bf bl 0xfffffffff8389b08 * 10: f94002e8 ldr x8, [x23] <-- trapping instruction