[EventEngine] Fix bug in Tx0cp code path in posix endpoint.

This fix ensures that the iov_base pointers point to the right address. PiperOrigin-RevId: 673923651
3 months ago · e9046b2bbe
parent d4f64f5705
commit e9046b2bbe
1 changed files with 1 additions and 1 deletions
--- a/src/core/lib/event_engine/posix_engine/posix_endpoint.cc
+++ b/src/core/lib/event_engine/posix_engine/posix_endpoint.cc
@ -236,7 +236,7 @@ msg_iovlen_type TcpZerocopySendRecord::PopulateIovs(size_t* unwind_slice_idx,
       iov_size++) {
    MutableSlice& slice = internal::SliceCast<MutableSlice>(
        buf_.MutableSliceAt(out_offset_.slice_idx));
-    iov[iov_size].iov_base = slice.begin();
+    iov[iov_size].iov_base = slice.begin() + out_offset_.byte_idx;
    iov[iov_size].iov_len = slice.length() - out_offset_.byte_idx;
    *sending_length += iov[iov_size].iov_len;
    ++(out_offset_.slice_idx);