------------[ 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/5609
Modules linked in:
CPU: 0 UID: 0 PID: 5609 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 85 f5 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:ffffc9000551f820 EFLAGS: 00010087
RAX: ffff8880b873ba40 RBX: ffff8880b863ba40 RCX: ffffffff8197d8ae
RDX: 0000000000000000 RSI: ffff888033740000 RDI: ffff8880b863ba40
RBP: dffffc0000000000 R08: ffffffff8fcf390f R09: 1ffffffff1f9e721
R10: dffffc0000000000 R11: fffffbfff1f9e722 R12: dffffc0000000000
R13: 1ffff110170c78d6 R14: ffff888033740000 R15: ffffffff8dc257d8
FS:  00005555672b8500(0000) GS:ffff888125a6b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555672d3a38 CR3: 0000000056a10000 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_common+0x82/0xd0 kernel/sched/core.c:7409
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
 _raw_spin_unlock_irqrestore+0x74/0x80 kernel/locking/spinlock.c:198
 rt_mutex_slowtrylock kernel/locking/rtmutex.c:1408 [inline]
 __rt_spin_trylock kernel/locking/spinlock_rt.c:106 [inline]
 rt_spin_trylock+0xd2/0x2b0 kernel/locking/spinlock_rt.c:118
 alloc_from_pcs mm/slub.c:4790 [inline]
 slab_alloc_node mm/slub.c:4929 [inline]
 __do_kmalloc_node mm/slub.c:5356 [inline]
 __kmalloc_noprof+0x218/0x7e0 mm/slub.c:5382
 _kmalloc_noprof include/linux/slab.h:973 [inline]
 _kmalloc_array_noprof include/linux/slab.h:1186 [inline]
 security_inode_init_security+0x102/0x3d0 security/security.c:1347
 shmem_mknod+0x1fe/0x360 mm/shmem.c:3804
 shmem_mkdir+0x33/0x70 mm/shmem.c:3859
 vfs_mkdir+0x40b/0x630 fs/namei.c:5272
 filename_mkdirat+0x289/0x520 fs/namei.c:5305
 __do_sys_mkdirat fs/namei.c:5326 [inline]
 __se_sys_mkdirat+0x35/0x150 fs/namei.c:5323
 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: 0033:0x7f9b6355bcc7
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff7461cd78 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fff7461cdd0 RCX: 00007f9b6355bcc7
RDX: 00000000000001ff RSI: 00007fff7461cdd0 RDI: 00000000ffffff9c
RBP: 00007fff7461cdbc R08: 0000000000000002 R09: 00000000fffffffe
R10: 0000000000000000 R11: 0000000000000206 R12: 000000000000000e
R13: 00000000000927c0 R14: 00000000000160a5 R15: 00007fff7461ce10
 </TASK>