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-rw-r--r--include/uapi/linux/io_uring.h4
-rw-r--r--io_uring/zcrx.c3
2 files changed, 5 insertions, 2 deletions
diff --git a/include/uapi/linux/io_uring.h b/include/uapi/linux/io_uring.h
index ed2beb4def3f..8f1fc12bac46 100644
--- a/include/uapi/linux/io_uring.h
+++ b/include/uapi/linux/io_uring.h
@@ -1010,7 +1010,9 @@ struct io_uring_zcrx_ifq_reg {
__u64 region_ptr; /* struct io_uring_region_desc * */
struct io_uring_zcrx_offsets offsets;
- __u64 __resv[4];
+ __u32 zcrx_id;
+ __u32 __resv2;
+ __u64 __resv[3];
};
#ifdef __cplusplus
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index 0f46e0404c04..d0eccf277a20 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -354,7 +354,8 @@ int io_register_zcrx_ifq(struct io_ring_ctx *ctx,
return -EFAULT;
if (copy_from_user(&rd, u64_to_user_ptr(reg.region_ptr), sizeof(rd)))
return -EFAULT;
- if (memchr_inv(&reg.__resv, 0, sizeof(reg.__resv)))
+ if (memchr_inv(&reg.__resv, 0, sizeof(reg.__resv)) ||
+ reg.__resv2 || reg.zcrx_id)
return -EINVAL;
if (reg.if_rxq == -1 || !reg.rq_entries || reg.flags)
return -EINVAL;