diff options
Diffstat (limited to 'io_uring/rsrc.c')
| -rw-r--r-- | io_uring/rsrc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index f75f5e43fa4a..d787c16dc1c3 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -13,6 +13,7 @@ #include <uapi/linux/io_uring.h> +#include "filetable.h" #include "io_uring.h" #include "openclose.h" #include "rsrc.h" @@ -1299,10 +1300,17 @@ int io_register_clone_buffers(struct io_ring_ctx *ctx, void __user *arg) if (src_ctx != ctx) { mutex_unlock(&ctx->uring_lock); lock_two_rings(ctx, src_ctx); + + if (src_ctx->submitter_task && + src_ctx->submitter_task != current) { + ret = -EEXIST; + goto out; + } } ret = io_clone_buffers(ctx, src_ctx, &buf); +out: if (src_ctx != ctx) mutex_unlock(&src_ctx->uring_lock); |