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BUG: KMSAN: uninit-value in io_req_cqe_overflow io_uring/io_uring.c:809 [inline]
BUG: KMSAN: uninit-value in __io_submit_flush_completions io_uring/io_uring.c:1520 [inline]
BUG: KMSAN: uninit-value in io_submit_flush_completions+0x880/0xcd0 io_uring/io_uring.c:173
 io_req_cqe_overflow io_uring/io_uring.c:809 [inline]
 __io_submit_flush_completions io_uring/io_uring.c:1520 [inline]
 io_submit_flush_completions+0x880/0xcd0 io_uring/io_uring.c:173
 io_submit_state_end io_uring/io_uring.c:2354 [inline]
 io_submit_sqes+0x2883/0x2e10 io_uring/io_uring.c:2465
 __do_sys_io_uring_enter io_uring/io_uring.c:3458 [inline]
 __se_sys_io_uring_enter+0x4ed/0x4300 io_uring/io_uring.c:3392
 __ia32_sys_io_uring_enter+0x119/0x1a0 io_uring/io_uring.c:3392
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Uninit was stored to memory at:
 io_req_set_res io_uring/io_uring.h:182 [inline]
 io_recv_finish io_uring/net.c:623 [inline]
 io_recvmsg+0x309d/0x3890 io_uring/net.c:827
 io_issue_sqe+0x321/0x1050 io_uring/io_uring.c:1907
 io_queue_sqe io_uring/io_uring.c:2079 [inline]
 io_submit_sqe io_uring/io_uring.c:2340 [inline]
 io_submit_sqes+0x11e2/0x2e10 io_uring/io_uring.c:2450
 __do_sys_io_uring_enter io_uring/io_uring.c:3458 [inline]
 __se_sys_io_uring_enter+0x4ed/0x4300 io_uring/io_uring.c:3392
 __ia32_sys_io_uring_enter+0x119/0x1a0 io_uring/io_uring.c:3392
 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
 __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178
 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246
 entry_SYSENTER_compat_after_hwframe+0x70/0x82

Local variable iomsg created at:
 io_recvmsg+0x50/0x3890 io_uring/net.c:733
 io_issue_sqe+0x321/0x1050 io_uring/io_uring.c:1907

CPU: 1 PID: 32445 Comm: syz-executor.0 Not tainted 6.3.0-rc7-syzkaller-g0255004d2a8e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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