BUG: unable to handle page fault for address: ffffffffffffffa0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 987c067 P4D 987c067 PUD 987e067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 134 Comm: kworker/u4:3 Not tainted 5.6.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krdsd rds_connect_worker RIP: 0010:__inet6_check_established+0x348/0xea0 net/ipv6/inet6_hashtables.c:223 Code: 03 4c 01 e0 48 89 44 24 28 e8 94 0e 92 fa 48 8d 7b a0 48 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 27 09 00 00 <44> 8b 73 a0 44 89 ee 44 89 f7 e8 59 0f 92 fa 45 39 ee 0f 85 ea 06 RSP: 0018:ffffc90000f17718 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff86e11ca5 RDX: 0000000000000000 RSI: ffffffff86e1155c RDI: ffffffffffffffa0 RBP: ffff88805c1a8300 R08: ffff8880a8e46280 R09: fffff520001e2ed6 R10: 0000000000000003 R11: fffff520001e2ed5 R12: dffffc0000000000 R13: 00000000f9b73ba7 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffa0 CR3: 000000002d7ba000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __inet_hash_connect+0x954/0xeb0 net/ipv4/inet_hashtables.c:647 tcp_v6_connect+0x1380/0x2150 net/ipv6/tcp_ipv6.c:311 __inet_stream_connect+0x80f/0xe30 net/ipv4/af_inet.c:655 inet_stream_connect+0x53/0xa0 net/ipv4/af_inet.c:719 rds_tcp_conn_path_connect+0x620/0x880 net/rds/tcp_connect.c:172 rds_connect_worker+0x1a5/0x2c0 net/rds/threads.c:176 process_one_work+0x965/0x16a0 kernel/workqueue.c:2266 worker_thread+0x96/0xe20 kernel/workqueue.c:2412 kthread+0x388/0x470 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Modules linked in: CR2: ffffffffffffffa0 ---[ end trace cd87e58c4d4ddfb3 ]--- RIP: 0010:__inet6_check_established+0x348/0xea0 net/ipv6/inet6_hashtables.c:223 Code: 03 4c 01 e0 48 89 44 24 28 e8 94 0e 92 fa 48 8d 7b a0 48 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 27 09 00 00 <44> 8b 73 a0 44 89 ee 44 89 f7 e8 59 0f 92 fa 45 39 ee 0f 85 ea 06 RSP: 0018:ffffc90000f17718 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff86e11ca5 RDX: 0000000000000000 RSI: ffffffff86e1155c RDI: ffffffffffffffa0 RBP: ffff88805c1a8300 R08: ffff8880a8e46280 R09: fffff520001e2ed6 R10: 0000000000000003 R11: fffff520001e2ed5 R12: dffffc0000000000 R13: 00000000f9b73ba7 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffa0 CR3: 000000002d7ba000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400