erspan0: entered promiscuous mode Oops: general protection fault, probably for non-canonical address 0xdffffc001fffe1ac: 0000 [#1] SMP KASAN PTI KASAN: probably user-memory-access in range [0x00000000ffff0d60-0x00000000ffff0d67] CPU: 0 UID: 0 PID: 32263 Comm: syz.6.7129 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:____ip_mc_inc_group+0x214/0xde0 net/ipv4/igmp.c:-1 Code: e9 88 05 01 48 c7 c7 e0 a2 9e 8c be ec 05 00 00 48 c7 c2 60 a3 9e 8c e8 1a 10 99 f7 44 89 e8 4d 8d 34 c6 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 5e a1 1e f8 4d 8b 2e 4d 85 ed 0f 84 RSP: 0018:ffffc9000ce36890 EFLAGS: 00010206 RAX: 000000001fffe1ac RBX: dffffc0000000000 RCX: ffff888036c09e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8f5382a7 R09: 1ffffffff1ea7054 R10: dffffc0000000000 R11: fffffbfff1ea7055 R12: 00000000010000e0 R13: 00000000000001ac R14: 00000000ffff0d60 R15: 0000000000000cc0 FS: 00007f517bd1c6c0(0000) GS:ffff888125c18000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc02bce56c0 CR3: 0000000084638000 CR4: 00000000003526f0 Call Trace: __ip_mc_inc_group net/ipv4/igmp.c:1573 [inline] ip_mc_inc_group net/ipv4/igmp.c:1579 [inline] ip_mc_up+0x125/0x300 net/ipv4/igmp.c:1880 inetdev_event+0xfb3/0x15b0 net/ipv4/devinet.c:1631 notifier_call_chain+0x1b3/0x3e0 kernel/notifier.c:85 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline] call_netdevice_notifiers net/core/dev.c:2281 [inline] __dev_notify_flags+0x18d/0x2e0 net/core/dev.c:-1 netif_change_flags+0xe8/0x1a0 net/core/dev.c:9617 do_setlink+0xc55/0x41c0 net/core/rtnetlink.c:3143 rtnl_group_changelink net/core/rtnetlink.c:3775 [inline] __rtnl_newlink net/core/rtnetlink.c:3929 [inline] rtnl_newlink+0x149f/0x1c70 net/core/rtnetlink.c:4057 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6946 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x82c/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:714 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:729 ____sys_sendmsg+0x505/0x830 net/socket.c:2614 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2668 __sys_sendmsg net/socket.c:2700 [inline] __do_sys_sendmsg net/socket.c:2705 [inline] __se_sys_sendmsg net/socket.c:2703 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2703 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f517af8ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f517bd1c038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f517b1b6090 RCX: 00007f517af8ebe9 RDX: 0000000000000000 RSI: 0000200000000180 RDI: 0000000000000048 RBP: 00007f517b011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f517b1b6128 R14: 00007f517b1b6090 R15: 00007fff5fde8cb8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:____ip_mc_inc_group+0x214/0xde0 net/ipv4/igmp.c:-1 Code: e9 88 05 01 48 c7 c7 e0 a2 9e 8c be ec 05 00 00 48 c7 c2 60 a3 9e 8c e8 1a 10 99 f7 44 89 e8 4d 8d 34 c6 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 5e a1 1e f8 4d 8b 2e 4d 85 ed 0f 84 RSP: 0018:ffffc9000ce36890 EFLAGS: 00010206 RAX: 000000001fffe1ac RBX: dffffc0000000000 RCX: ffff888036c09e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff8f5382a7 R09: 1ffffffff1ea7054 R10: dffffc0000000000 R11: fffffbfff1ea7055 R12: 00000000010000e0 R13: 00000000000001ac R14: 00000000ffff0d60 R15: 0000000000000cc0 FS: 00007f517bd1c6c0(0000) GS:ffff888125d18000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555910465c8 CR3: 0000000084638000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: e9 88 05 01 48 jmp 0x4801058d 5: c7 c7 e0 a2 9e 8c mov $0x8c9ea2e0,%edi b: be ec 05 00 00 mov $0x5ec,%esi 10: 48 c7 c2 60 a3 9e 8c mov $0xffffffff8c9ea360,%rdx 17: e8 1a 10 99 f7 call 0xf7991036 1c: 44 89 e8 mov %r13d,%eax 1f: 4d 8d 34 c6 lea (%r14,%rax,8),%r14 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 f7 mov %r14,%rdi 33: e8 5e a1 1e f8 call 0xf81ea196 38: 4d 8b 2e mov (%r14),%r13 3b: 4d 85 ed test %r13,%r13 3e: 0f .byte 0xf 3f: 84 .byte 0x84