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BUG: KMSAN: uninit-value in io_req_cqe_overflow+0x1f8/0x220 io_uring/io_uring.c:687
 io_req_cqe_overflow+0x1f8/0x220 io_uring/io_uring.c:687
 __io_fill_cqe_req+0x4ad/0x830 io_uring/io_uring.h:121
 __io_submit_flush_completions io_uring/io_uring.c:1192 [inline]
 io_submit_flush_completions+0x11c/0x390 io_uring/io_uring.c:166
 io_submit_state_end io_uring/io_uring.c:2025 [inline]
 io_submit_sqes+0x7d3/0xd50 io_uring/io_uring.c:2137
 __do_sys_io_uring_enter io_uring/io_uring.c:3053 [inline]
 __se_sys_io_uring_enter+0x597/0x1d30 io_uring/io_uring.c:2983
 __x64_sys_io_uring_enter+0x117/0x190 io_uring/io_uring.c:2983
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Uninit was stored to memory at:
 io_req_set_res io_uring/io_uring.h:156 [inline]
 io_recv_finish io_uring/net.c:537 [inline]
 io_recv+0x18ee/0x1d00 io_uring/net.c:845
 io_issue_sqe+0x3b1/0x11d0 io_uring/io_uring.c:1576
 io_queue_sqe io_uring/io_uring.c:1753 [inline]
 io_submit_sqe+0xb40/0x1be0 io_uring/io_uring.c:2011
 io_submit_sqes+0x542/0xd50 io_uring/io_uring.c:2122
 __do_sys_io_uring_enter io_uring/io_uring.c:3053 [inline]
 __se_sys_io_uring_enter+0x597/0x1d30 io_uring/io_uring.c:2983
 __x64_sys_io_uring_enter+0x117/0x190 io_uring/io_uring.c:2983
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Local variable msg created at:
 io_recv+0x4b/0x1d00 io_uring/net.c:763
 io_issue_sqe+0x3b1/0x11d0 io_uring/io_uring.c:1576

CPU: 1 PID: 4478 Comm: syz-executor.0 Not tainted 6.0.0-rc2-syzkaller-47461-gac3859c02d7f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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