Oops: general protection fault, probably for non-canonical address 0xdffffc001fffc1ea: 0000 [#1] SMP KASAN PTI
KASAN: probably user-memory-access in range [0x00000000fffe0f50-0x00000000fffe0f57]
CPU: 1 UID: 0 PID: 19759 Comm: syz.8.3782 Not tainted 6.16.0-syzkaller-06590-gf8fded7536a9 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ip_mc_hash_remove net/ipv4/igmp.c:1431 [inline]
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690 net/ipv4/igmp.c:1774
Code: 99 e8 c4 f7 c6 05 23 96 8f 05 01 48 c7 c7 a0 f7 9b 8c be 97 05 00 00 48 c7 c2 20 f8 9b 8c e8 ea d2 a2 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 0b 28 f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900178b6c98 EFLAGS: 00010202
RAX: ffffffff89fac7de RBX: 000000001fffc1ea RCX: ffff888011d10000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888085ee9030 R08: ffffffff8f508fa7 R09: 1ffffffff1ea11f4
R10: dffffc0000000000 R11: fffffbfff1ea11f5 R12: 00000000fffe0f50
R13: dffffc0000000000 R14: ffff888085ee8e00 R15: 1ffff11010bdd206
FS:  00007ff5d485b6c0(0000) GS:ffff888125d80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f869a0e56c0 CR3: 0000000092f2c000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 br_ip4_multicast_leave_snoopers net/bridge/br_multicast.c:4204 [inline]
 br_multicast_leave_snoopers+0xb6/0x1c0 net/bridge/br_multicast.c:4224
 br_dev_stop+0x8a/0x180 net/bridge/br_device.c:197
 __dev_close_many+0x364/0x6f0 net/core/dev.c:1755
 netif_close_many+0x225/0x410 net/core/dev.c:1780
 unregister_netdevice_many_notify+0x7b9/0x1ff0 net/core/dev.c:12126
 rtnl_delete_link net/core/rtnetlink.c:3513 [inline]
 rtnl_dellink+0x488/0x710 net/core/rtnetlink.c:3555
 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6946
 netlink_rcv_skb+0x208/0x470 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: 0033:0x7ff5d398eb69
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:00007ff5d485b038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff5d3bb6080 RCX: 00007ff5d398eb69
RDX: 0000000000000000 RSI: 0000200000000200 RDI: 0000000000000003
RBP: 00007ff5d3a11df1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff5d3bb6080 R15: 00007ffc3a198648
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ip_mc_hash_remove net/ipv4/igmp.c:1431 [inline]
RIP: 0010:__ip_mc_dec_group+0x2fd/0x690 net/ipv4/igmp.c:1774
Code: 99 e8 c4 f7 c6 05 23 96 8f 05 01 48 c7 c7 a0 f7 9b 8c be 97 05 00 00 48 c7 c2 20 f8 9b 8c e8 ea d2 a2 f7 4c 89 e3 48 c1 eb 03 <42> 80 3c 2b 00 74 08 4c 89 e7 e8 54 0b 28 f8 4d 8b 2c 24 4d 39 f5
RSP: 0018:ffffc900178b6c98 EFLAGS: 00010202
RAX: ffffffff89fac7de RBX: 000000001fffc1ea RCX: ffff888011d10000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff888085ee9030 R08: ffffffff8f508fa7 R09: 1ffffffff1ea11f4
R10: dffffc0000000000 R11: fffffbfff1ea11f5 R12: 00000000fffe0f50
R13: dffffc0000000000 R14: ffff888085ee8e00 R15: 1ffff11010bdd206
FS:  00007ff5d485b6c0(0000) GS:ffff888125d80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c356cd3 CR3: 0000000092f2c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	99                   	cltd
   1:	e8 c4 f7 c6 05       	call   0x5c6f7ca
   6:	23 96 8f 05 01 48    	and    0x4801058f(%rsi),%edx
   c:	c7 c7 a0 f7 9b 8c    	mov    $0x8c9bf7a0,%edi
  12:	be 97 05 00 00       	mov    $0x597,%esi
  17:	48 c7 c2 20 f8 9b 8c 	mov    $0xffffffff8c9bf820,%rdx
  1e:	e8 ea d2 a2 f7       	call   0xf7a2d30d
  23:	4c 89 e3             	mov    %r12,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 2a:	42 80 3c 2b 00       	cmpb   $0x0,(%rbx,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	4c 89 e7             	mov    %r12,%rdi
  34:	e8 54 0b 28 f8       	call   0xf8280b8d
  39:	4d 8b 2c 24          	mov    (%r12),%r13
  3d:	4d 39 f5             	cmp    %r14,%r13