===================================================== BUG: KMSAN: uninit-value in __io_fill_cqe_req+0x9bd/0xed0 fs/io_uring.c:2482 __io_fill_cqe_req+0x9bd/0xed0 fs/io_uring.c:2482 __io_submit_flush_completions fs/io_uring.c:3160 [inline] io_submit_flush_completions+0x175/0x420 fs/io_uring.c:1575 io_submit_state_end fs/io_uring.c:9007 [inline] io_submit_sqes+0x7d3/0xd50 fs/io_uring.c:9119 __do_sys_io_uring_enter fs/io_uring.c:12051 [inline] __se_sys_io_uring_enter+0x670/0x25c0 fs/io_uring.c:11977 __x64_sys_io_uring_enter+0x117/0x190 fs/io_uring.c:11977 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_complete_state fs/io_uring.c:2600 [inline] __io_req_complete fs/io_uring.c:2608 [inline] io_recv fs/io_uring.c:6496 [inline] io_issue_sqe+0x163c7/0x19760 fs/io_uring.c:8374 io_queue_sqe fs/io_uring.c:8729 [inline] io_submit_sqe+0x8b22/0xa8b0 fs/io_uring.c:8993 io_submit_sqes+0x542/0xd50 fs/io_uring.c:9104 __do_sys_io_uring_enter fs/io_uring.c:12051 [inline] __se_sys_io_uring_enter+0x670/0x25c0 fs/io_uring.c:11977 __x64_sys_io_uring_enter+0x117/0x190 fs/io_uring.c:11977 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.i450 created at: io_recv fs/io_uring.c:6427 [inline] io_issue_sqe+0x4946/0x19760 fs/io_uring.c:8374 io_queue_sqe fs/io_uring.c:8729 [inline] io_submit_sqe+0x8b22/0xa8b0 fs/io_uring.c:8993 CPU: 0 PID: 19819 Comm: syz-executor.5 Not tainted 5.19.0-syzkaller-32655-g1b070a5d1a2c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 =====================================================