general protection fault, probably for non-canonical address 0xdffffc0000000014: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x00000000000000a0-0x00000000000000a7]
CPU: 1 PID: 32312 Comm: syz-executor329 Not tainted 5.10.79-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3085 [inline]
RIP: 0010:reweight_entity+0x125/0x750 kernel/sched/fair.c:3104
Code: 80 3c 11 00 0f 85 22 06 00 00 4d 8d 94 24 a0 00 00 00 4c 8b ab a0 01 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 d1 48 c1 e9 03 <80> 3c 11 00 0f 85 74 05 00 00 49 8b 94 24 a0 00 00 00 b9 00 00 00
RSP: 0018:ffffc900038d7c98 EFLAGS: 00010006
RAX: 0000000000003c00 RBX: ffff888110364b80 RCX: 0000000000000014
RDX: dffffc0000000000 RSI: ffff888110364b80 RDI: 0000000000000000
RBP: ffffc900038d7ce8 R08: ffff888110364bb8 R09: ffff888110364d20
R10: 00000000000000a0 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000400 R14: 0000000000000000 R15: ffff888110364b80
FS:  00007f85eaf3e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85eaf9f580 CR3: 000000011368d000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 reweight_task+0xbc/0x1e0 kernel/sched/fair.c:3129
 set_load_weight+0x1e9/0x320 kernel/sched/core.c:865
 set_user_nice+0x233/0x10c0 kernel/sched/core.c:5010
 set_one_prio+0x1ad/0x220 kernel/sys.c:192
 __do_sys_setpriority+0x201/0x680 kernel/sys.c:233
 __se_sys_setpriority kernel/sys.c:197 [inline]
 __x64_sys_setpriority+0x6e/0xb0 kernel/sys.c:197
 do_syscall_64+0x32/0x80 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f85eaf8c8b9
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:00007f85eaf3e318 EFLAGS: 00000246 ORIG_RAX: 000000000000008d
RAX: ffffffffffffffda RBX: 00007f85eb0143e8 RCX: 00007f85eaf8c8b9
RDX: 0000000000008f82 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 00007f85eb0143e0 R08: 00007f85eaf3e700 R09: 0000000000000000
R10: 00007f85eaf3e700 R11: 0000000000000246 R12: 00007f85eb0143ec
R13: 00007ffc42dfe37f R14: 00007f85eaf3e400 R15: 0000000000022000
Modules linked in:
---[ end trace feaa9d090c219c76 ]---
RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3085 [inline]
RIP: 0010:reweight_entity+0x125/0x750 kernel/sched/fair.c:3104
Code: 80 3c 11 00 0f 85 22 06 00 00 4d 8d 94 24 a0 00 00 00 4c 8b ab a0 01 00 00 48 ba 00 00 00 00 00 fc ff df 4c 89 d1 48 c1 e9 03 <80> 3c 11 00 0f 85 74 05 00 00 49 8b 94 24 a0 00 00 00 b9 00 00 00
RSP: 0018:ffffc900038d7c98 EFLAGS: 00010006
RAX: 0000000000003c00 RBX: ffff888110364b80 RCX: 0000000000000014
RDX: dffffc0000000000 RSI: ffff888110364b80 RDI: 0000000000000000
RBP: ffffc900038d7ce8 R08: ffff888110364bb8 R09: ffff888110364d20
R10: 00000000000000a0 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000400 R14: 0000000000000000 R15: ffff888110364b80
FS:  00007f85eaf3e700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85eaf9f580 CR3: 000000011368d000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	80 3c 11 00          	cmpb   $0x0,(%rcx,%rdx,1)
   4:	0f 85 22 06 00 00    	jne    0x62c
   a:	4d 8d 94 24 a0 00 00 	lea    0xa0(%r12),%r10
  11:	00
  12:	4c 8b ab a0 01 00 00 	mov    0x1a0(%rbx),%r13
  19:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  20:	fc ff df
  23:	4c 89 d1             	mov    %r10,%rcx
  26:	48 c1 e9 03          	shr    $0x3,%rcx
* 2a:	80 3c 11 00          	cmpb   $0x0,(%rcx,%rdx,1) <-- trapping instruction
  2e:	0f 85 74 05 00 00    	jne    0x5a8
  34:	49 8b 94 24 a0 00 00 	mov    0xa0(%r12),%rdx
  3b:	00
  3c:	b9                   	.byte 0xb9
  3d:	00 00                	add    %al,(%rax)