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: 5356 Comm: syz.3.13 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: ffff88807aec9e00
RBP: 00000000000000a0 R08: ffff88807aec9e07 R09: 1ffff1100f5d93c0
R10: dffffc0000000000 R11: ffffed100f5d93c1 R12: ffff8880b903ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007ff9633606c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32815ff8 CR3: 000000004ab70000 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:__update_page_owner_handle mm/page_owner.c:244 [inline]
RIP: 0010:__set_page_owner+0x1ae/0x800 mm/page_owner.c:325
Code: e8 67 d9 8d ff 48 8b 05 60 67 a0 0c 4d 8d 34 07 49 8d 7c 07 08 48 89 f8 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 0f b6 04 10 <84> c0 0f 85 1d 01 00 00 8b 44 24 28 41 89 46 08 4c 89 f0 48 c1 e8
RSP: 0018:ffffc900042a6340 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000040000
RDX: dffffc0000000000 RSI: 0000000000010188 RDI: ffff888019a1d2d0
RBP: ffffc900042a6440 R08: ffffffff8205e70b R09: 1ffffffff26f5700
R10: dffffc0000000000 R11: fffffbfff26f5701 R12: 0000000000000000
R13: 0000000000000001 R14: ffff888019a1d2c8 R15: ffff888019a1d2c0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1517
 prep_new_page mm/page_alloc.c:1525 [inline]
 get_page_from_freelist+0x3004/0x30c0 mm/page_alloc.c:3476
 __alloc_pages_noprof+0x29e/0x780 mm/page_alloc.c:4743
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 folio_alloc_mpol_noprof mm/mempolicy.c:2283 [inline]
 vma_alloc_folio_noprof+0x12e/0x230 mm/mempolicy.c:2314
 folio_prealloc+0x31/0x170
 alloc_anon_folio mm/memory.c:4496 [inline]
 do_anonymous_page mm/memory.c:4553 [inline]
 do_pte_missing mm/memory.c:3945 [inline]
 handle_pte_fault+0x258a/0x67c0 mm/memory.c:5522
 __handle_mm_fault mm/memory.c:5665 [inline]
 handle_mm_fault+0x1029/0x1980 mm/memory.c:5833
 faultin_page mm/gup.c:1174 [inline]
 __get_user_pages+0x1cf2/0x4910 mm/gup.c:1472
 __get_user_pages_locked mm/gup.c:1738 [inline]
 __gup_longterm_locked+0x3ba/0x17d0 mm/gup.c:2472
 gup_fast_fallback+0x2707/0x2b00 mm/gup.c:3363
 pin_user_pages_fast+0xcc/0x160 mm/gup.c:3469
 pfn_reader_user_pin+0x432/0x850 drivers/iommu/iommufd/pages.c:781
 iopt_pages_fill_from_mm drivers/iommu/iommufd/pages.c:1644 [inline]
 iopt_pages_fill_xarray+0x7f2/0x1760 drivers/iommu/iommufd/pages.c:1711
 iopt_area_add_access+0x22a/0x430 drivers/iommu/iommufd/pages.c:1944
 iommufd_access_pin_pages+0x786/0xd40 drivers/iommu/iommufd/device.c:1079
 iommufd_test_access_pages drivers/iommu/iommufd/selftest.c:1238 [inline]
 iommufd_test+0x2cfe/0x3e40 drivers/iommu/iommufd/selftest.c:1481
 iommufd_fops_ioctl+0x4d9/0x5a0 drivers/iommu/iommufd/main.c:424
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893
 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: 0033:0x7ff962579e79
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:00007ff963360038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff962716058 RCX: 00007ff962579e79
RDX: 0000000020000240 RSI: 0000000000003ba0 RDI: 0000000000000005
RBP: 00007ff9625e7916 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff962716058 R15: 00007ffc33aa7f08
 </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: ffff88807aec9e00
RBP: 00000000000000a0 R08: ffff88807aec9e07 R09: 1ffff1100f5d93c0
R10: dffffc0000000000 R11: ffffed100f5d93c1 R12: ffff8880b903ea40
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007ff9633606c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32815ff8 CR3: 000000004ab70000 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