==================================================================
BUG: KASAN: slab-use-after-free in min_deadline_update kernel/sched/fair.c:818 [inline]
BUG: KASAN: slab-use-after-free in min_deadline_cb_propagate kernel/sched/fair.c:825 [inline]
BUG: KASAN: slab-use-after-free in reweight_entity+0x8c7/0xa60 kernel/sched/fair.c:3660
Read of size 8 at addr ffff8880201abc28 by task syz-executor.3/5431

CPU: 1 PID: 5431 Comm: syz-executor.3 Not tainted 6.6.0-rc6-syzkaller-00217-gcd8892c07876 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:364 [inline]
 print_report+0xc4/0x620 mm/kasan/report.c:475
 kasan_report+0xda/0x110 mm/kasan/report.c:588
 min_deadline_update kernel/sched/fair.c:818 [inline]
 min_deadline_cb_propagate kernel/sched/fair.c:825 [inline]
 reweight_entity+0x8c7/0xa60 kernel/sched/fair.c:3660
 entity_tick kernel/sched/fair.c:5317 [inline]
 task_tick_fair+0xee/0xcd0 kernel/sched/fair.c:12392
 scheduler_tick+0x210/0x650 kernel/sched/core.c:5657
 update_process_times+0x19f/0x220 kernel/time/timer.c:2076
 tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:254
 tick_sched_timer+0xe9/0x110 kernel/time/tick-sched.c:1492
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x647/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x42/0xc0 arch/x86/kernel/apic/apic.c:1074
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
RIP: 0010:unwind_next_frame+0xd89/0x2390 arch/x86/kernel/unwind_orc.c:585
Code: e8 4c 1e c6 ff e9 d5 f6 ff ff e8 52 76 4d 00 49 8d 45 f8 ba 08 00 00 00 48 89 df 48 89 c6 48 89 44 24 28 e8 09 f0 ff ff 31 ff <41> 89 c7 89 c6 e8 5d 71 4d 00 48 8d 4b 34 45 84 ff 0f 84 3f f6 ff
RSP: 0018:ffffc900001f0688 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffc900001f0708 RCX: 0000000000000100
RDX: ffff88801de88000 RSI: ffffffff813a54b9 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 41a551945fa84cd0 R12: ffffffff8f544dda
R13: ffffc90005d8fd10 R14: ffffffff8f544dde R15: 0000000000000002
 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x180/0x3f0 mm/slub.c:3523
 __alloc_skb+0x287/0x330 net/core/skbuff.c:640
 alloc_skb include/linux/skbuff.h:1286 [inline]
 __tcp_send_ack.part.0+0x64/0x730 net/ipv4/tcp_output.c:4069
 __tcp_send_ack net/ipv4/tcp_output.c:4101 [inline]
 tcp_send_ack+0x82/0xa0 net/ipv4/tcp_output.c:4101
 tcp_delack_timer_handler net/ipv4/tcp_timer.c:334 [inline]
 tcp_delack_timer_handler+0x2ec/0x430 net/ipv4/tcp_timer.c:298
 tcp_delack_timer+0xa6/0x330 net/ipv4/tcp_timer.c:357
 call_timer_fn+0x19e/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x218/0x965 kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:mod_objcg_state+0x423/0x9e0 mm/memcontrol.c:3224
Code: 00 00 00 00 48 89 df 48 8d 35 00 00 00 00 e8 94 b6 82 ff 48 83 7c 24 08 00 0f 85 86 01 00 00 9c 58 f6 c4 02 0f 85 62 03 00 00 <4d> 85 f6 0f 84 63 01 00 00 48 83 c4 20 4c 89 f7 5b 5d 41 5c 41 5d
RSP: 0018:ffffc90005d8f868 EFLAGS: 00000246
RAX: 0000000000000006 RBX: ffff8880b99380a0 RCX: 1ffffffff233b6a8
RDX: 0000000000000000 RSI: ffffffff8a8caca0 RDI: ffffffff8ae93420
RBP: ffff8880b99380c8 R08: 0000000000000001 R09: fffffbfff23389d6
R10: ffffffff919c4eb7 R11: 0000000000000000 R12: 0000000000000001
R13: ffff8880b99380a0 R14: 0000000000000000 R15: ffff8880b99380f8
 memcg_slab_free_hook mm/slab.h:572 [inline]
 slab_free mm/slub.c:3804 [inline]
 kmem_cache_free+0x3dc/0x480 mm/slub.c:3831
 anon_vma_free mm/rmap.c:137 [inline]
 __put_anon_vma+0x114/0x390 mm/rmap.c:2365
 put_anon_vma include/linux/rmap.h:116 [inline]
 unlink_anon_vmas+0x575/0x800 mm/rmap.c:445
 free_pgtables+0x309/0x800 mm/memory.c:399
 exit_mmap+0x383/0xa60 mm/mmap.c:3221
 __mmput+0x12a/0x4d0 kernel/fork.c:1349
 mmput+0x62/0x70 kernel/fork.c:1371
 exit_mm kernel/exit.c:567 [inline]
 do_exit+0x9ad/0x2a20 kernel/exit.c:861
 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
 get_signal+0x23ba/0x2790 kernel/signal.c:2892
 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309
 exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
 exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f996fe7cae9
Code: Unable to access opcode bytes at 0x7f996fe7cabf.
RSP: 002b:00007f9970bb30c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000008 RBX: 00007f996ff9c120 RCX: 00007f996fe7cae9
RDX: 0000000000007a05 RSI: 0000000020000140 RDI: ffffffffffffff9c
RBP: 00007f996fec847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001700 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f996ff9c120 R15: 00007fffa69d88e8
 </TASK>

Allocated by task 4709:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook mm/slab.h:762 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x180/0x3f0 mm/slub.c:3523
 alloc_task_struct_node kernel/fork.c:173 [inline]
 dup_task_struct kernel/fork.c:1110 [inline]
 copy_process+0x41c/0x73f0 kernel/fork.c:2327
 kernel_clone+0xfd/0x920 kernel/fork.c:2909
 __do_sys_clone+0xba/0x100 kernel/fork.c:3052
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Freed by task 16:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 kasan_save_free_info+0x2b/0x40 mm/kasan/generic.c:522
 ____kasan_slab_free mm/kasan/common.c:236 [inline]
 ____kasan_slab_free+0x15b/0x1b0 mm/kasan/common.c:200
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1800 [inline]
 slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
 slab_free mm/slub.c:3809 [inline]
 kmem_cache_free+0xf0/0x480 mm/slub.c:3831
 put_task_struct include/linux/sched/task.h:136 [inline]
 put_task_struct include/linux/sched/task.h:123 [inline]
 delayed_put_task_struct+0x21b/0x2b0 kernel/exit.c:226
 rcu_do_batch kernel/rcu/tree.c:2139 [inline]
 rcu_core+0x805/0x1bb0 kernel/rcu/tree.c:2403
 __do_softirq+0x218/0x965 kernel/softirq.c:553

Last potentially related work creation:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
 __call_rcu_common.constprop.0+0x9a/0x790 kernel/rcu/tree.c:2653
 put_task_struct_rcu_user kernel/exit.c:232 [inline]
 put_task_struct_rcu_user+0x87/0xc0 kernel/exit.c:229
 release_task+0xef7/0x1b70 kernel/exit.c:282
 wait_task_zombie kernel/exit.c:1210 [inline]
 wait_consider_task+0x17b5/0x4000 kernel/exit.c:1437
 do_wait_thread kernel/exit.c:1500 [inline]
 do_wait+0x72a/0xc70 kernel/exit.c:1617
 kernel_wait4+0x16d/0x280 kernel/exit.c:1780
 __do_sys_wait4+0x15b/0x170 kernel/exit.c:1808
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Second to last potentially related work creation:
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 __kasan_record_aux_stack+0xbc/0xd0 mm/kasan/generic.c:492
 task_work_add+0x88/0x2a0 kernel/task_work.c:48
 scheduler_tick+0x228/0x650 kernel/sched/core.c:5662
 update_process_times+0x19f/0x220 kernel/time/timer.c:2076
 tick_sched_handle+0x8e/0x170 kernel/time/tick-sched.c:254
 tick_sched_timer+0xe9/0x110 kernel/time/tick-sched.c:1492
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x647/0xc10 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline]
 __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080
 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1074
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645

The buggy address belongs to the object at ffff8880201abb80
 which belongs to the cache task_struct of size 7360
The buggy address is located 168 bytes inside of
 freed 7360-byte region [ffff8880201abb80, ffff8880201ad840)

The buggy address belongs to the physical page:
page:ffffea0000806a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x201a8
head:ffffea0000806a00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff888028640a41
flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000840 ffff888014e43500 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000040004 00000001ffffffff ffff888028640a41
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2, tgid 2 (kthreadd), ts 16326332830, free_ts 0
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
 prep_new_page mm/page_alloc.c:1543 [inline]
 get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2297
 alloc_slab_page mm/slub.c:1870 [inline]
 allocate_slab+0x251/0x380 mm/slub.c:2017
 new_slab mm/slub.c:2070 [inline]
 ___slab_alloc+0x8c7/0x1580 mm/slub.c:3223
 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322
 __slab_alloc_node mm/slub.c:3375 [inline]
 slab_alloc_node mm/slub.c:3468 [inline]
 kmem_cache_alloc_node+0x132/0x3f0 mm/slub.c:3523
 alloc_task_struct_node kernel/fork.c:173 [inline]
 dup_task_struct kernel/fork.c:1110 [inline]
 copy_process+0x41c/0x73f0 kernel/fork.c:2327
 kernel_clone+0xfd/0x920 kernel/fork.c:2909
 kernel_thread+0xc0/0x100 kernel/fork.c:2971
 create_kthread kernel/kthread.c:411 [inline]
 kthreadd+0x4fb/0x7d0 kernel/kthread.c:746
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
page_owner free stack trace missing

Memory state around the buggy address:
 ffff8880201abb00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880201abb80: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880201abc00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff8880201abc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880201abd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
----------------
Code disassembly (best guess):
   0:	e8 4c 1e c6 ff       	call   0xffc61e51
   5:	e9 d5 f6 ff ff       	jmp    0xfffff6df
   a:	e8 52 76 4d 00       	call   0x4d7661
   f:	49 8d 45 f8          	lea    -0x8(%r13),%rax
  13:	ba 08 00 00 00       	mov    $0x8,%edx
  18:	48 89 df             	mov    %rbx,%rdi
  1b:	48 89 c6             	mov    %rax,%rsi
  1e:	48 89 44 24 28       	mov    %rax,0x28(%rsp)
  23:	e8 09 f0 ff ff       	call   0xfffff031
  28:	31 ff                	xor    %edi,%edi
* 2a:	41 89 c7             	mov    %eax,%r15d <-- trapping instruction
  2d:	89 c6                	mov    %eax,%esi
  2f:	e8 5d 71 4d 00       	call   0x4d7191
  34:	48 8d 4b 34          	lea    0x34(%rbx),%rcx
  38:	45 84 ff             	test   %r15b,%r15b
  3b:	0f                   	.byte 0xf
  3c:	84 3f                	test   %bh,(%rdi)
  3e:	f6 ff                	idiv   %bh