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: 18991 Comm: syz-executor667 Not tainted 5.10.85-syzkaller-00573-gafc997898ece #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:dequeue_load_avg kernel/sched/fair.c:3095 [inline] kernel/sched/fair.c:3114 RIP: 0010:reweight_entity+0x110/0x510 kernel/sched/fair.c:3114 kernel/sched/fair.c:3114 Code: 80 3c 08 00 74 08 48 89 df e8 3c ff 59 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 12 ff 59 00 49 8b 45 00 31 db 4c 29 RSP: 0018:ffffc900029d7c10 EFLAGS: 00010006 RAX: 0000000000000014 RBX: ffff88810c1a3d60 RCX: dffffc0000000000 RDX: 0000000000003c00 RSI: ffff88810c1a3bc0 RDI: 0000000000000000 RBP: ffffc900029d7ca8 R08: ffffffff86e42048 R09: ffffffff86e42058 R10: ffffffff86e42050 R11: ffffffff86e42043 R12: 0000000000000000 R13: 00000000000000a0 R14: ffff88810c1a3bc0 R15: 0000000000000400 FS: 00007f1789e63700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffcef4b7c0 CR3: 000000010c3aa000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reweight_task+0x8c/0x1a0 kernel/sched/fair.c:3139 kernel/sched/fair.c:3139 set_load_weight kernel/sched/core.c:902 [inline] set_load_weight kernel/sched/core.c:902 [inline] kernel/sched/core.c:5255 set_user_nice+0x516/0xed0 kernel/sched/core.c:5255 kernel/sched/core.c:5255 set_one_prio+0x1cb/0x270 kernel/sys.c:202 kernel/sys.c:202 __do_sys_setpriority kernel/sys.c:243 [inline] __do_sys_setpriority kernel/sys.c:243 [inline] kernel/sys.c:207 __se_sys_setpriority+0x2ee/0x750 kernel/sys.c:207 kernel/sys.c:207 __x64_sys_setpriority+0x7b/0x90 kernel/sys.c:207 kernel/sys.c:207 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f1789eb18c9 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:00007f1789e63318 EFLAGS: 00000246 ORIG_RAX: 000000000000008d RAX: ffffffffffffffda RBX: 00007f1789f393e8 RCX: 00007f1789eb18c9 RDX: 0000000000008f82 RSI: 0000000000000000 RDI: 0000000000000001 RBP: 00007f1789f393e0 R08: 00007f1789e63700 R09: 0000000000000000 R10: 00007f1789e63700 R11: 0000000000000246 R12: 00007f1789f393ec R13: 00007fffcef3ecaf R14: 00007f1789e63400 R15: 0000000000022000 Modules linked in: ---[ end trace 0e948288e9716314 ]--- RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3095 [inline] RIP: 0010:dequeue_load_avg kernel/sched/fair.c:3095 [inline] kernel/sched/fair.c:3114 RIP: 0010:reweight_entity+0x110/0x510 kernel/sched/fair.c:3114 kernel/sched/fair.c:3114 Code: 80 3c 08 00 74 08 48 89 df e8 3c ff 59 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 12 ff 59 00 49 8b 45 00 31 db 4c 29 RSP: 0018:ffffc900029d7c10 EFLAGS: 00010006 RAX: 0000000000000014 RBX: ffff88810c1a3d60 RCX: dffffc0000000000 RDX: 0000000000003c00 RSI: ffff88810c1a3bc0 RDI: 0000000000000000 RBP: ffffc900029d7ca8 R08: ffffffff86e42048 R09: ffffffff86e42058 R10: ffffffff86e42050 R11: ffffffff86e42043 R12: 0000000000000000 R13: 00000000000000a0 R14: ffff88810c1a3bc0 R15: 0000000000000400 FS: 00007f1789e63700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffcef4b7c0 CR3: 000000010c3aa000 CR4: 00000000003506a0 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 3c ff 59 00 callq 0x59ff4a 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 12 ff 59 00 callq 0x59ff4a 38: 49 8b 45 00 mov 0x0(%r13),%rax 3c: 31 db xor %ebx,%ebx 3e: 4c rex.WR 3f: 29 .byte 0x29 ---------------- 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 3c ff 59 00 callq 0x59ff4a 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 12 ff 59 00 callq 0x59ff4a 38: 49 8b 45 00 mov 0x0(%r13),%rax 3c: 31 db xor %ebx,%ebx 3e: 4c rex.WR 3f: 29 .byte 0x29