Oops: general protection fault, probably for non-canonical address 0xdffffc000000003a: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000001d0-0x00000000000001d7]
CPU: 0 UID: 0 PID: 6003 Comm: syz.2.81 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:fbcon_set_palette+0x1f4/0x800
Code: 05 00 00 41 0f b6 6d 00 31 ff 89 ee e8 b5 ad aa fc 85 ed 74 07 e8 ac aa aa fc eb 30 49 81 c4 d4 01 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 a2 05 00 00 41 8b 2c 24 31 ff 89 ee e8 c3
RSP: 0018:ffffc900074ff608 EFLAGS: 00010207
RAX: 000000000000003a RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888106fabb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff9011888f R09: 1ffffffff2023111
R10: dffffc0000000000 R11: fffffbfff2023112 R12: 00000000000001d4
R13: ffff8881b631a40c R14: 1ffffffff2023111 R15: ffff888109c11000
FS:  00007fa7dbcd56c0(0000) GS:ffff88818de52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000115cca000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 do_con_write+0x3f2f/0x5110
 con_write+0x27/0x290
 n_tty_write+0xd80/0x12a0
 file_tty_write+0x51f/0x9c0
 vfs_write+0x612/0xba0
 ksys_write+0x150/0x270
 do_syscall_64+0x170/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa7dad9e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa7dbcd5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa7db025fa0 RCX: 00007fa7dad9e019
RDX: 0000000000001006 RSI: 0000200000000000 RDI: 0000000000000004
RBP: 00007fa7dae3500c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa7db026038 R14: 00007fa7db025fa0 R15: 00007ffd3b104f88
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:fbcon_set_palette+0x1f4/0x800
Code: 05 00 00 41 0f b6 6d 00 31 ff 89 ee e8 b5 ad aa fc 85 ed 74 07 e8 ac aa aa fc eb 30 49 81 c4 d4 01 00 00 4c 89 e0 48 c1 e8 03 <0f> b6 04 18 84 c0 0f 85 a2 05 00 00 41 8b 2c 24 31 ff 89 ee e8 c3
RSP: 0018:ffffc900074ff608 EFLAGS: 00010207
RAX: 000000000000003a RBX: dffffc0000000000 RCX: 0000000000000002
RDX: ffff888106fabb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff9011888f R09: 1ffffffff2023111
R10: dffffc0000000000 R11: fffffbfff2023112 R12: 00000000000001d4
R13: ffff8881b631a40c R14: 1ffffffff2023111 R15: ffff888109c11000
FS:  00007fa7dbcd56c0(0000) GS:ffff88818de52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000115cca000 CR4: 00000000000006f0
