batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_macvtap: left promiscuous mode 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: 5995 Comm: kworker/u8:12 Not tainted 6.15.0-rc4-syzkaller-00163-ge8716b5b0dff #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 Workqueue: netns cleanup_net RIP: 0010:mld_clear_delrec+0x34a/0x5d0 net/ipv6/mcast.c:838 Code: ff ff ff e8 58 f7 3f 01 89 c5 31 ff 89 c6 e8 7d d1 a9 f7 85 ed 74 40 e8 34 cd a9 f7 eb 05 e8 2d cd a9 f7 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 c2 0b f8 4d 8b 27 49 8d 7f 30 RSP: 0018:ffffc900054cf490 EFLAGS: 00010206 RAX: 000000001fffe000 RBX: ffff88806880d538 RCX: ffff888032781e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8f7ed377 R09: 1ffffffff1efda6e R10: dffffc0000000000 R11: fffffbfff1efda6f R12: ffff8880241c3428 R13: dffffc0000000000 R14: ffff8880241c3400 R15: 00000000ffff0000 FS: 0000000000000000(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 000000005b11c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ipv6_mc_destroy_dev+0x45/0x5a0 net/ipv6/mcast.c:2842 addrconf_ifdown+0x139e/0x1880 net/ipv6/addrconf.c:4000 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1 notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline] call_netdevice_notifiers net/core/dev.c:2228 [inline] unregister_netdevice_many_notify+0x15d4/0x2330 net/core/dev.c:11982 unregister_netdevice_many net/core/dev.c:12046 [inline] default_device_exit_batch+0x819/0x890 net/core/dev.c:12538 ops_exit_list net/core/net_namespace.c:177 [inline] cleanup_net+0x7a9/0xbd0 net/core/net_namespace.c:654 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xadb/0x17a0 kernel/workqueue.c:3319 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mld_clear_delrec+0x34a/0x5d0 net/ipv6/mcast.c:838 Code: ff ff ff e8 58 f7 3f 01 89 c5 31 ff 89 c6 e8 7d d1 a9 f7 85 ed 74 40 e8 34 cd a9 f7 eb 05 e8 2d cd a9 f7 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 c2 0b f8 4d 8b 27 49 8d 7f 30 RSP: 0018:ffffc900054cf490 EFLAGS: 00010206 RAX: 000000001fffe000 RBX: ffff88806880d538 RCX: ffff888032781e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: ffffffff8f7ed377 R09: 1ffffffff1efda6e R10: dffffc0000000000 R11: fffffbfff1efda6f R12: ffff8880241c3428 R13: dffffc0000000000 R14: ffff8880241c3400 R15: 00000000ffff0000 FS: 0000000000000000(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 000000000dd36000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 3 bytes skipped: 0: e8 58 f7 3f 01 call 0x13ff75d 5: 89 c5 mov %eax,%ebp 7: 31 ff xor %edi,%edi 9: 89 c6 mov %eax,%esi b: e8 7d d1 a9 f7 call 0xf7a9d18d 10: 85 ed test %ebp,%ebp 12: 74 40 je 0x54 14: e8 34 cd a9 f7 call 0xf7a9cd4d 19: eb 05 jmp 0x20 1b: e8 2d cd a9 f7 call 0xf7a9cd4d 20: 4c 89 f8 mov %r15,%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 ff mov %r15,%rdi 31: e8 17 c2 0b f8 call 0xf80bc24d 36: 4d 8b 27 mov (%r15),%r12 39: 49 8d 7f 30 lea 0x30(%r15),%rdi