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BUG: KMSAN: uninit-value in list_splice_init include/linux/list.h:481 [inline]
BUG: KMSAN: uninit-value in io_flush_cached_locked_reqs fs/io_uring.c:1881 [inline]
BUG: KMSAN: uninit-value in io_req_caches_free fs/io_uring.c:9239 [inline]
BUG: KMSAN: uninit-value in io_ring_ctx_free fs/io_uring.c:9299 [inline]
BUG: KMSAN: uninit-value in io_ring_exit_work+0x33ad/0x3a50 fs/io_uring.c:9446
 list_splice_init include/linux/list.h:481 [inline]
 io_flush_cached_locked_reqs fs/io_uring.c:1881 [inline]
 io_req_caches_free fs/io_uring.c:9239 [inline]
 io_ring_ctx_free fs/io_uring.c:9299 [inline]
 io_ring_exit_work+0x33ad/0x3a50 fs/io_uring.c:9446
 process_one_work+0xdc7/0x1760 kernel/workqueue.c:2297
 worker_thread+0x1101/0x22b0 kernel/workqueue.c:2444
 kthread+0x66b/0x780 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30

Uninit was stored to memory at:
 __list_add include/linux/list.h:73 [inline]
 list_add include/linux/list.h:86 [inline]
 io_req_complete_post+0x17d9/0x21d0 fs/io_uring.c:1803
 io_req_task_timeout+0xa6/0xe0 fs/io_uring.c:5924
 tctx_task_work+0x773/0xe30 fs/io_uring.c:2156
 task_work_run+0x1f0/0x2c0 kernel/task_work.c:164
 exit_task_work include/linux/task_work.h:32 [inline]
 do_exit+0xdf5/0x3e10 kernel/exit.c:827
 do_group_exit+0x213/0x460 kernel/exit.c:924
 get_signal+0x265b/0x2aa0 kernel/signal.c:2855
 arch_do_signal_or_restart+0x96/0xdc0 arch/x86/kernel/signal.c:865
 handle_signal_work kernel/entry/common.c:149 [inline]
 exit_to_user_mode_loop+0x206/0x490 kernel/entry/common.c:173
 exit_to_user_mode_prepare kernel/entry/common.c:208 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x80/0xc0 kernel/entry/common.c:302
 do_syscall_64+0x60/0xd0 arch/x86/entry/common.c:88
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 kmem_cache_alloc_bulk+0xde4/0x1400 mm/slub.c:3721
 io_alloc_req fs/io_uring.c:1933 [inline]
 io_submit_sqes+0x11ea/0x2ad0 fs/io_uring.c:7277
 __do_sys_io_uring_enter fs/io_uring.c:9992 [inline]
 __se_sys_io_uring_enter+0x62b/0x23b0 fs/io_uring.c:9934
 __x64_sys_io_uring_enter+0x19d/0x200 fs/io_uring.c:9934
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae
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