==================================================================
BUG: KASAN: slab-use-after-free in __do_sys_io_cancel fs/aio.c:2207 [inline]
BUG: KASAN: slab-use-after-free in __se_sys_io_cancel fs/aio.c:2174 [inline]
BUG: KASAN: slab-use-after-free in __arm64_sys_io_cancel+0x364/0x3ac fs/aio.c:2174
Read of size 4 at addr ffff00000ef54020 by task syz-executor.1/29609

CPU: 1 PID: 29609 Comm: syz-executor.1 Not tainted 6.8.0-rc7-syzkaller-00020-g5847c9777c30 #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace+0x9c/0x11c arch/arm64/kernel/stacktrace.c:291
 show_stack+0x18/0x24 arch/arm64/kernel/stacktrace.c:298
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x74/0xd4 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:377 [inline]
 print_report+0xd8/0x598 mm/kasan/report.c:488
 kasan_report+0xc8/0x108 mm/kasan/report.c:601
 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
 __do_sys_io_cancel fs/aio.c:2207 [inline]
 __se_sys_io_cancel fs/aio.c:2174 [inline]
 __arm64_sys_io_cancel+0x364/0x3ac fs/aio.c:2174
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:51
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x140 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Allocated by task 29609:
 kasan_save_stack+0x3c/0x64 mm/kasan/common.c:47
 kasan_save_track+0x20/0x3c mm/kasan/common.c:68
 kasan_save_alloc_info+0x40/0x54 mm/kasan/generic.c:575
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x8c/0x90 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3813 [inline]
 slab_alloc_node mm/slub.c:3860 [inline]
 kmem_cache_alloc+0x11c/0x308 mm/slub.c:3867
 aio_get_req fs/aio.c:1060 [inline]
 io_submit_one+0x19c/0x162c fs/aio.c:2050
 __do_sys_io_submit fs/aio.c:2113 [inline]
 __se_sys_io_submit fs/aio.c:2083 [inline]
 __arm64_sys_io_submit+0x188/0x328 fs/aio.c:2083
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:51
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x140 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Freed by task 28310:
 kasan_save_stack+0x3c/0x64 mm/kasan/common.c:47
 kasan_save_track+0x20/0x3c mm/kasan/common.c:68
 kasan_save_free_info+0x4c/0x74 mm/kasan/generic.c:589
 poison_slab_object+0x118/0x168 mm/kasan/common.c:240
 __kasan_slab_free+0x1c/0x44 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2121 [inline]
 slab_free mm/slub.c:4299 [inline]
 kmem_cache_free+0x11c/0x424 mm/slub.c:4363
 iocb_destroy fs/aio.c:1112 [inline]
 iocb_put fs/aio.c:1212 [inline]
 iocb_put fs/aio.c:1208 [inline]
 aio_poll_complete_work+0x4c8/0x878 fs/aio.c:1767
 process_one_work+0x670/0x143c kernel/workqueue.c:2633
 process_scheduled_works kernel/workqueue.c:2706 [inline]
 worker_thread+0x5a8/0xfb0 kernel/workqueue.c:2787
 kthread+0x27c/0x300 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860

Last potentially related work creation:
 kasan_save_stack+0x3c/0x64 mm/kasan/common.c:47
 __kasan_record_aux_stack+0xb4/0xe4 mm/kasan/generic.c:551
 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:561
 insert_work+0x48/0x1d4 kernel/workqueue.c:1653
 __queue_work+0x4ec/0x133c kernel/workqueue.c:1802
 queue_work_on+0xb4/0xf0 kernel/workqueue.c:1837
 queue_work include/linux/workqueue.h:548 [inline]
 schedule_work include/linux/workqueue.h:609 [inline]
 aio_poll_cancel fs/aio.c:1779 [inline]
 aio_poll_cancel+0x150/0x1b0 fs/aio.c:1771
 __do_sys_io_cancel fs/aio.c:2196 [inline]
 __se_sys_io_cancel fs/aio.c:2174 [inline]
 __arm64_sys_io_cancel+0x190/0x3ac fs/aio.c:2174
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:51
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x58/0x140 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

The buggy address belongs to the object at ffff00000ef54000
 which belongs to the cache aio_kiocb of size 216
The buggy address is located 32 bytes inside of
 freed 216-byte region [ffff00000ef54000, ffff00000ef540d8)

The buggy address belongs to the physical page:
page:000000007e3d4618 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4ef54
flags: 0x1ffc00000000800(slab|node=0|zone=0|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 01ffc00000000800 ffff00000bab73c0 dead000000000122 0000000000000000
raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff00000ef53f00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff00000ef53f80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff00000ef54000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                               ^
 ffff00000ef54080: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
 ffff00000ef54100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================