On Sat, 22 Mar 2025 11:47:27 +0000, Pavel Begunkov wrote: > refcount_t: underflow; use-after-free. > WARNING: CPU: 0 PID: 5823 at lib/refcount.c:28 refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 > RIP: 0010:refcount_warn_saturate+0x15a/0x1d0 lib/refcount.c:28 > Call Trace: > <TASK> > io_notif_flush io_uring/notif.h:40 [inline] > io_send_zc_cleanup+0x121/0x170 io_uring/net.c:1222 > io_clean_op+0x58c/0x9a0 io_uring/io_uring.c:406 > io_free_batch_list io_uring/io_uring.c:1429 [inline] > __io_submit_flush_completions+0xc16/0xd20 io_uring/io_uring.c:1470 > io_submit_flush_completions io_uring/io_uring.h:159 [inline] > > [...] Applied, thanks! [1/1] io_uring/net: fix sendzc double notif flush (no commit info) Best regards, -- Jens Axboe