batman_adv: batadv0: Removing interface: batadv_slave_1 veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe000: 0000 [#1] SMP KASAN PTI KASAN: probably user-memory-access in range [0x00000000ffff0000-0x00000000ffff0007] CPU: 1 UID: 0 PID: 20655 Comm: kworker/u8:5 Not tainted 6.17.0-rc1-next-20250814-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: netns cleanup_net RIP: 0010:ip6_mc_clear_src+0x18f/0x580 net/ipv6/mcast.c:2593 Code: ff ff ff e8 c3 dd 41 01 89 c5 31 ff 89 c6 e8 f8 db 85 f7 85 ed 74 45 e8 af d7 85 f7 eb 05 e8 a8 d7 85 f7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 82 55 e9 f7 49 8b 2c 24 49 8d 7c RSP: 0018:ffffc9000465f098 EFLAGS: 00010206 RAX: 000000001fffe000 RBX: 1ffff1100f572702 RCX: ffff88802c551e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8fa3b137 R09: 1ffffffff1f47626 R10: dffffc0000000000 R11: fffffbfff1f47627 R12: 00000000ffff0000 R13: dffffc0000000000 R14: 0000000000000538 R15: ffff88807ab93810 FS: 0000000000000000(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f903d4a3c18 CR3: 000000005db78000 CR4: 00000000003526f0 Call Trace: __ipv6_dev_mc_dec+0x2e4/0x330 net/ipv6/mcast.c:1009 addrconf_leave_solict net/ipv6/addrconf.c:2257 [inline] __ipv6_ifa_notify+0x43d/0xac0 net/ipv6/addrconf.c:6299 addrconf_ifdown+0xe69/0x1880 net/ipv6/addrconf.c:3977 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1 notifier_call_chain+0x1b6/0x3e0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline] call_netdevice_notifiers net/core/dev.c:2281 [inline] netif_close_many+0x29c/0x410 net/core/dev.c:1784 unregister_netdevice_many_notify+0x7b9/0x1ff0 net/core/dev.c:12124 unregister_netdevice_many net/core/dev.c:12217 [inline] default_device_exit_batch+0x819/0x890 net/core/dev.c:12721 ops_exit_list net/core/net_namespace.c:204 [inline] ops_undo_list+0x522/0x990 net/core/net_namespace.c:251 cleanup_net+0x4c5/0x800 net/core/net_namespace.c:682 process_one_work kernel/workqueue.c:3236 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x3f9/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ip6_mc_clear_src+0x18f/0x580 net/ipv6/mcast.c:2593 Code: ff ff ff e8 c3 dd 41 01 89 c5 31 ff 89 c6 e8 f8 db 85 f7 85 ed 74 45 e8 af d7 85 f7 eb 05 e8 a8 d7 85 f7 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 82 55 e9 f7 49 8b 2c 24 49 8d 7c RSP: 0018:ffffc9000465f098 EFLAGS: 00010206 RAX: 000000001fffe000 RBX: 1ffff1100f572702 RCX: ffff88802c551e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8fa3b137 R09: 1ffffffff1f47626 R10: dffffc0000000000 R11: fffffbfff1f47627 R12: 00000000ffff0000 R13: dffffc0000000000 R14: 0000000000000538 R15: ffff88807ab93810 FS: 0000000000000000(0000) GS:ffff888125d0f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffea591ff00 CR3: 00000000788aa000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: e8 c3 dd 41 01 call 0x141ddc8 5: 89 c5 mov %eax,%ebp 7: 31 ff xor %edi,%edi 9: 89 c6 mov %eax,%esi b: e8 f8 db 85 f7 call 0xf785dc08 10: 85 ed test %ebp,%ebp 12: 74 45 je 0x59 14: e8 af d7 85 f7 call 0xf785d7c8 19: eb 05 jmp 0x20 1b: e8 a8 d7 85 f7 call 0xf785d7c8 20: 4c 89 e0 mov %r12,%rax 23: 48 c1 e8 03 shr $0x3,%rax * 27: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2c: 74 08 je 0x36 2e: 4c 89 e7 mov %r12,%rdi 31: e8 82 55 e9 f7 call 0xf7e955b8 36: 49 8b 2c 24 mov (%r12),%rbp 3a: 49 rex.WB 3b: 8d .byte 0x8d 3c: 7c .byte 0x7c