Oops: general protection fault, probably for non-canonical address 0xdffffc0000000014: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000000a0-0x00000000000000a7]
CPU: 1 UID: 0 PID: 5719 Comm: syz.2.96 Not tainted 6.11.0-rc4-next-20240821-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:is_same_group kernel/sched/fair.c:411 [inline]
RIP: 0010:find_matching_se kernel/sched/fair.c:448 [inline]
RIP: 0010:check_preempt_wakeup_fair+0x471/0xb00 kernel/sched/fair.c:8679
Code: 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 80 28 95 00 4d 8b 3f 49 8d ae a0 00 00 00 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 60 28 95 00 48 8b 5d 00 49 8d af
RSP: 0018:ffffc90000a18aa0 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff8880b913eb00 RCX: ffffffff816719b8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888029ba3c00
RBP: 00000000000000a0 R08: ffff888029ba3c07 R09: 1ffff11005374780
R10: dffffc0000000000 R11: ffffed1005374781 R12: ffff8880b903ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc1923de6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000201e3000 CR3: 00000000795d4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 wakeup_preempt+0xd8/0x2a0 kernel/sched/core.c:2128
 ttwu_do_activate+0x1f8/0x7e0 kernel/sched/core.c:3666
 ttwu_queue kernel/sched/core.c:3940 [inline]
 try_to_wake_up+0x8bc/0x1480 kernel/sched/core.c:4266
 swake_up_locked kernel/sched/swait.c:29 [inline]
 complete_with_flags kernel/sched/completion.c:24 [inline]
 complete+0xac/0x1c0 kernel/sched/completion.c:47
 random_recv_done+0x138/0x1e0 drivers/char/hw_random/virtio-rng.c:48
 vring_interrupt+0x21d/0x380 drivers/virtio/virtio_ring.c:2595
 __handle_irq_event_percpu+0x29a/0xa80 kernel/irq/handle.c:158
 handle_irq_event_percpu kernel/irq/handle.c:193 [inline]
 handle_irq_event+0x89/0x1f0 kernel/irq/handle.c:210
 handle_edge_irq+0x25f/0xc20 kernel/irq/chip.c:831
 generic_handle_irq_desc include/linux/irqdesc.h:173 [inline]
 handle_irq arch/x86/kernel/irq.c:247 [inline]
 call_irq_handler arch/x86/kernel/irq.c:259 [inline]
 __common_interrupt+0x136/0x230 arch/x86/kernel/irq.c:285
 common_interrupt+0xb4/0xd0 arch/x86/kernel/irq.c:278
 </IRQ>
 <TASK>
 asm_common_interrupt+0x26/0x40 arch/x86/include/asm/idtentry.h:693
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ce 0b 35 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> a3 cb 9b f5 65 8b 05 24 9d 3c 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc9000e00f9c0 EFLAGS: 00000206
RAX: 547469f9d5b46d00 RBX: 1ffff92001c01f3c RCX: ffffffff94f8f903
RDX: dffffc0000000000 RSI: ffffffff8c0ace40 RDI: 0000000000000001
RBP: ffffc9000e00fa50 R08: ffffffff901c0c6f R09: 1ffffffff203818d
R10: dffffc0000000000 R11: fffffbfff203818e R12: dffffc0000000000
R13: 1ffff92001c01f38 R14: ffffc9000e00f9e0 R15: 0000000000000246
 class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:551 [inline]
 try_to_wake_up+0x92e/0x1480 kernel/sched/core.c:4150
 wake_up_process kernel/sched/core.c:4398 [inline]
 wake_up_q+0xc8/0x120 kernel/sched/core.c:1056
 futex_wake+0x523/0x5c0 kernel/futex/waitwake.c:199
 do_futex+0x392/0x560 kernel/futex/syscalls.c:107
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex+0x3f9/0x480 kernel/futex/syscalls.c:160
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc192979e79
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc1923de0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fc192b16060 RCX: 00007fc192979e79
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc192b16064
RBP: 00007fc192b16058 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000246 R12: 00007fc192b16064
R13: 0000000000000000 R14: 00007ffd457cc710 R15: 00007ffd457cc7f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:is_same_group kernel/sched/fair.c:411 [inline]
RIP: 0010:find_matching_se kernel/sched/fair.c:448 [inline]
RIP: 0010:check_preempt_wakeup_fair+0x471/0xb00 kernel/sched/fair.c:8679
Code: 00 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 80 28 95 00 4d 8b 3f 49 8d ae a0 00 00 00 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 60 28 95 00 48 8b 5d 00 49 8d af
RSP: 0018:ffffc90000a18aa0 EFLAGS: 00010006
RAX: 0000000000000014 RBX: ffff8880b913eb00 RCX: ffffffff816719b8
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888029ba3c00
RBP: 00000000000000a0 R08: ffff888029ba3c07 R09: 1ffff11005374780
R10: dffffc0000000000 R11: ffffed1005374781 R12: ffff8880b903ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fc1923de6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000201e3000 CR3: 00000000795d4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 4c 89 f8          	add    %cl,-0x8(%rcx,%rcx,4)
   6:	48 c1 e8 03          	shr    $0x3,%rax
   a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
   f:	74 08                	je     0x19
  11:	4c 89 ff             	mov    %r15,%rdi
  14:	e8 80 28 95 00       	call   0x952899
  19:	4d 8b 3f             	mov    (%r15),%r15
  1c:	49 8d ae a0 00 00 00 	lea    0xa0(%r14),%rbp
  23:	48 89 e8             	mov    %rbp,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 ef             	mov    %rbp,%rdi
  34:	e8 60 28 95 00       	call   0x952899
  39:	48 8b 5d 00          	mov    0x0(%rbp),%rbx
  3d:	49                   	rex.WB
  3e:	8d                   	.byte 0x8d
  3f:	af                   	scas   %es:(%rdi),%eax