general protection fault, probably for non-canonical address 0xdffffc0000000014: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000a0-0x00000000000000a7]
CPU: 0 PID: 1783 Comm: syz-executor364 Not tainted 5.10.81-syzkaller-00042-gc3daae52afbc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3095 [inline]
RIP: 0010:reweight_entity+0x110/0x510 kernel/sched/fair.c:3114
Code: 80 3c 08 00 74 08 48 89 df e8 bc 1a 5a 00 48 89 5d 88 4c 8b 3b 4c 89 e8 48 c1 e8 03 48 89 45 b0 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 92 1a 5a 00 49 8b 45 00 31 db 4c 29
RSP: 0018:ffffc90003a57c10 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff88810ef30220 RCX: dffffc0000000000
RDX: 0000000000044000 RSI: ffff88810ef30080 RDI: 0000000000000000
RBP: ffffc90003a57ca8 R08: ffffffff86a42008 R09: ffffffff86a42018
R10: ffffffff86a42010 R11: ffffffff86a42003 R12: 0000000000000000
R13: 00000000000000a0 R14: ffff88810ef30080 R15: 0000000000000400
FS:  00007f12de518700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff684cb7c0 CR3: 000000010ecd0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reweight_task+0x8c/0x1a0 kernel/sched/fair.c:3139
 set_load_weight kernel/sched/core.c:902 [inline]
 set_user_nice+0x516/0xed0 kernel/sched/core.c:5255
 set_one_prio+0x1cb/0x270 kernel/sys.c:202
 __do_sys_setpriority kernel/sys.c:243 [inline]
 __se_sys_setpriority+0x2ee/0x750 kernel/sys.c:207
 __x64_sys_setpriority+0x7b/0x90 kernel/sys.c:207
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f12de5668b9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f12de518318 EFLAGS: 00000246 ORIG_RAX: 000000000000008d
RAX: ffffffffffffffda RBX: 00007f12de5ee3e8 RCX: 00007f12de5668b9
RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 00007f12de5ee3e0 R08: 00007f12de518700 R09: 0000000000000000
R10: 00007f12de518700 R11: 0000000000000246 R12: 00007f12de5ee3ec
R13: 00007fff684655df R14: 00007f12de518400 R15: 0000000000022000
Modules linked in:
---[ end trace d78747da9962ad42 ]---
RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3095 [inline]
RIP: 0010:reweight_entity+0x110/0x510 kernel/sched/fair.c:3114
Code: 80 3c 08 00 74 08 48 89 df e8 bc 1a 5a 00 48 89 5d 88 4c 8b 3b 4c 89 e8 48 c1 e8 03 48 89 45 b0 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ef e8 92 1a 5a 00 49 8b 45 00 31 db 4c 29
RSP: 0018:ffffc90003a57c10 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff88810ef30220 RCX: dffffc0000000000
RDX: 0000000000044000 RSI: ffff88810ef30080 RDI: 0000000000000000
RBP: ffffc90003a57ca8 R08: ffffffff86a42008 R09: ffffffff86a42018
R10: ffffffff86a42010 R11: ffffffff86a42003 R12: 0000000000000000
R13: 00000000000000a0 R14: ffff88810ef30080 R15: 0000000000000400
FS:  00007f12de518700(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff684cb7c0 CR3: 000000010ecd0000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
   4:	74 08                	je     0xe
   6:	48 89 df             	mov    %rbx,%rdi
   9:	e8 bc 1a 5a 00       	callq  0x5a1aca
   e:	48 89 5d 88          	mov    %rbx,-0x78(%rbp)
  12:	4c 8b 3b             	mov    (%rbx),%r15
  15:	4c 89 e8             	mov    %r13,%rax
  18:	48 c1 e8 03          	shr    $0x3,%rax
  1c:	48 89 45 b0          	mov    %rax,-0x50(%rbp)
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 ef             	mov    %r13,%rdi
  33:	e8 92 1a 5a 00       	callq  0x5a1aca
  38:	49 8b 45 00          	mov    0x0(%r13),%rax
  3c:	31 db                	xor    %ebx,%ebx
  3e:	4c                   	rex.WR
  3f:	29                   	.byte 0x29