------------[ cut here ]------------
task_rq(p) != rq
WARNING: kernel/sched/fair.c:7656 at hrtick_start_fair+0x196/0x1f0 kernel/sched/fair.c:7656, CPU#0: syz-executor/5757
Modules linked in:
CPU: 0 UID: 0 PID: 5757 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:hrtick_start_fair+0x196/0x1f0 kernel/sched/fair.c:7656
Code: 42 80 3c 20 00 74 08 4c 89 ff e8 c5 e5 97 00 4d 39 37 0f 85 0c ff ff ff 48 89 df 5b 41 5c 41 5d 41 5e 41 5f e9 7b 64 fa ff 90 <0f> 0b 90 e9 d1 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 82
RSP: 0018:ffffc90003f56cc0 EFLAGS: 00010087
RAX: ffff8880b873ba40 RBX: ffff8880b863ba40 RCX: ffffffff8197c8ae
RDX: 0000000000000000 RSI: ffff888020b8be00 RDI: ffff8880b863ba40
RBP: dffffc0000000000 R08: ffffffff8fcf250f R09: 1ffffffff1f9e4a1
R10: dffffc0000000000 R11: fffffbfff1f9e4a2 R12: dffffc0000000000
R13: 1ffff110170c78d6 R14: ffff888020b8be00 R15: ffffffff8dc247d8
FS:  0000555586e6b500(0000) GS:ffff888125a6f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff17ae7e60 CR3: 000000004019e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 set_next_task_fair+0xa68/0xce0 kernel/sched/fair.c:15065
 put_prev_set_next_task kernel/sched/sched.h:2770 [inline]
 pick_next_task kernel/sched/core.c:6442 [inline]
 __schedule+0x3e03/0x5550 kernel/sched/core.c:7143
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7552
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x14f/0x8c0 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:mas_wr_node_store lib/maple_tree.c:3137 [inline]
RIP: 0010:mas_wr_store_entry+0xc70/0x7fc0 lib/maple_tree.c:3531
Code: 80 ec 00 00 00 00 00 00 00 48 c7 80 f4 00 00 00 00 00 00 00 ba 00 01 00 00 4c 89 ff 31 f6 e8 f7 28 fc f6 48 8b 3d 78 76 99 04 <48> 8b 5c 24 18 48 89 de e8 c3 34 01 00 48 89 d8 48 c1 e8 03 48 89
RSP: 0018:ffffc90003f57080 EFLAGS: 00000246
RAX: ffffc90003f57880 RBX: 0000000000000008 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8c9fc280
RBP: ffffc90003f57a10 R08: ffffc90003f5797f R09: 0000000000000000
R10: ffffc90003f57880 R11: fffff520007eaf30 R12: ffffc90003f57ae0
R13: dffffc0000000000 R14: ffffc90003f57c00 R15: ffffc90003f57880
 mas_erase+0x72a/0x910 lib/maple_tree.c:5595
 mtree_erase+0x129/0x1a0 lib/maple_tree.c:5926
 simple_offset_remove+0x58/0x90 fs/libfs.c:333
 shmem_unlink+0x16d/0x250 mm/shmem.c:3913
 vfs_unlink+0x274/0x6d0 fs/namei.c:5513
 filename_unlinkat+0x3d3/0x610 fs/namei.c:5583
 __do_sys_unlink fs/namei.c:5618 [inline]
 __se_sys_unlink+0x2e/0x140 fs/namei.c:5615
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd4df2ebf47
Code: 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff17ae84b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd4df2ebf47
RDX: 00007fff17ae84e0 RSI: 00007fff17ae8570 RDI: 00007fff17ae8570
RBP: 00007fff17ae8570 R08: 00007fff17ae9570 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff17ae9600
R13: 00007fd4df3821ca R14: 000000000001d48e R15: 00007fff17ae9640
 </TASK>
----------------
Code disassembly (best guess):
   0:	80 ec 00             	sub    $0x0,%ah
   3:	00 00                	add    %al,(%rax)
   5:	00 00                	add    %al,(%rax)
   7:	00 00                	add    %al,(%rax)
   9:	48 c7 80 f4 00 00 00 	movq   $0x0,0xf4(%rax)
  10:	00 00 00 00
  14:	ba 00 01 00 00       	mov    $0x100,%edx
  19:	4c 89 ff             	mov    %r15,%rdi
  1c:	31 f6                	xor    %esi,%esi
  1e:	e8 f7 28 fc f6       	call   0xf6fc291a
  23:	48 8b 3d 78 76 99 04 	mov    0x4997678(%rip),%rdi        # 0x49976a2
* 2a:	48 8b 5c 24 18       	mov    0x18(%rsp),%rbx <-- trapping instruction
  2f:	48 89 de             	mov    %rbx,%rsi
  32:	e8 c3 34 01 00       	call   0x134fa
  37:	48 89 d8             	mov    %rbx,%rax
  3a:	48 c1 e8 03          	shr    $0x3,%rax
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89