kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7947 Comm: syz-executor.5 Not tainted 5.3.0-rc2-next-20190805 #59 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tls_trim_both_msgs+0x54/0x130 net/tls/tls_sw.c:268 Code: 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 4d 8b b5 b0 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888069c87ac0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff88805f73c3c0 RCX: ffffc90012beb000 RDX: 0000000000000005 RSI: ffffffff862e5d26 RDI: 0000000000000028 RBP: ffff888069c87ae0 R08: ffff8880697bc340 R09: ffffed100a20b4a9 R10: ffffed100a20b4a8 R11: ffff88805105a543 R12: 0000000000000000 R13: ffff88805ee1a4c0 R14: 0000000000000000 R15: 00000000ffffffe0 FS: 00007fc0804a8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf25000 CR3: 000000009f232000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tls_sw_sendmsg+0xe38/0x17b0 net/tls/tls_sw.c:1057 inet6_sendmsg+0x9e/0xe0 net/ipv6/af_inet6.c:576 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:657 __sys_sendto+0x262/0x380 net/socket.c:1952 __do_sys_sendto net/socket.c:1964 [inline] __se_sys_sendto net/socket.c:1960 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1960 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc0804a7c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000459829 RDX: ffffffffffffffc1 RSI: 00000000200005c0 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 1201000000003618 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc0804a86d4 R13: 00000000004c77d9 R14: 00000000004dcf90 R15: 00000000ffffffff Modules linked in: ---[ end trace ed7780acf3eccba7 ]--- RIP: 0010:tls_trim_both_msgs+0x54/0x130 net/tls/tls_sw.c:268 Code: 48 c1 ea 03 80 3c 02 00 0f 85 e3 00 00 00 4d 8b b5 b0 06 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888069c87ac0 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffff88805f73c3c0 RCX: ffffc90012beb000 RDX: 0000000000000005 RSI: ffffffff862e5d26 RDI: 0000000000000028 RBP: ffff888069c87ae0 R08: ffff8880697bc340 R09: ffffed100a20b4a9 R10: ffffed100a20b4a8 R11: ffff88805105a543 R12: 0000000000000000 R13: ffff88805ee1a4c0 R14: 0000000000000000 R15: 00000000ffffffe0 FS: 00007fc0804a8700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 000000009f232000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400