random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based  firewall rule not found. Use the iptables CT target to attach helpers instead.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 4521 Comm: syz-executor593 Not tainted 4.18.0-rc3+ #135
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:tcp_zerocopy_receive net/ipv4/tcp.c:1796 [inline]
RIP: 0010:do_tcp_getsockopt.isra.43+0x2f9d/0x3c10 net/ipv4/tcp.c:3521
Code: 3c 03 0f 8e 46 08 00 00 89 9d 10 fd ff ff e8 ea b9 15 fb 49 8d be 80 00 00 00 be ff ff 37 00 48 89 f8 48 c1 e6 2a 48 c1 e8 03 <0f> b6 04 30 84 c0 74 08 3c 03 0f 8e cd 06 00 00 48 8b 85 50 fc ff 
RSP: 0018:ffff8801c8b77860 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000000 RCX: ffffffff8666514d
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000080
RBP: ffff8801c8b77c60 R08: ffff8801b25c81c0 R09: ffffed0036644777
R10: ffffed0036644777 R11: ffff8801b3223bbf R12: 0000000000001000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c8b779b0
FS:  0000000002675880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005000 CR3: 00000001b34b6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 tcp_getsockopt+0xc1/0xe0 net/ipv4/tcp.c:3547
 sock_common_getsockopt+0x9a/0xe0 net/core/sock.c:2999
 __sys_getsockopt+0x1ad/0x390 net/socket.c:1948
 __do_sys_getsockopt net/socket.c:1959 [inline]
 __se_sys_getsockopt net/socket.c:1956 [inline]
 __x64_sys_getsockopt+0xbe/0x150 net/socket.c:1956
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x440279
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007ffe47b2e5c8 EFLAGS: 00000217 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440279
RDX: 0000000000000023 RSI: 0000000000000006 RDI: 0000000000000003
RBP: 00000000006cb018 R08: 0000000020000040 R09: 0000000000000080
R10: 0000000020000000 R11: 0000000000000217 R12: 0000000000401b00
R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
---[ end trace 921586a967364432 ]---
RIP: 0010:tcp_zerocopy_receive net/ipv4/tcp.c:1796 [inline]
RIP: 0010:do_tcp_getsockopt.isra.43+0x2f9d/0x3c10 net/ipv4/tcp.c:3521
Code: 3c 03 0f 8e 46 08 00 00 89 9d 10 fd ff ff e8 ea b9 15 fb 49 8d be 80 00 00 00 be ff ff 37 00 48 89 f8 48 c1 e6 2a 48 c1 e8 03 <0f> b6 04 30 84 c0 74 08 3c 03 0f 8e cd 06 00 00 48 8b 85 50 fc ff 
RSP: 0018:ffff8801c8b77860 EFLAGS: 00010202
RAX: 0000000000000010 RBX: 0000000000000000 RCX: ffffffff8666514d
RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000080
RBP: ffff8801c8b77c60 R08: ffff8801b25c81c0 R09: ffffed0036644777
R10: ffffed0036644777 R11: ffff8801b3223bbf R12: 0000000000001000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801c8b779b0
FS:  0000000002675880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005000 CR3: 00000001b34b6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400