| commit | c23579f031ecd09bf37c644723b33736dffa8b92 | [log] [tgz] |
|---|---|---|
| author | Damien Neil <dneil@google.com> | Tue Jan 23 15:59:47 2024 -0800 |
| committer | Damien Neil <dneil@google.com> | Wed Apr 10 20:23:22 2024 +0000 |
| tree | 9558bc5995b581328813f9f490c7d42124248508 | |
| parent | 5b5d6f87a8a19848b367a0e0d8e56c0141c02193 [diff] |
database/sql: avoid clobbering driver-owned memory in RawBytes Depending on the query, a RawBytes can contain memory owned by the driver or by database/sql: If the driver provides the column as a []byte, RawBytes aliases that []byte. If the driver provides the column as any other type, RawBytes contains memory allocated by database/sql. Prior to this CL, Rows.Scan will reuse existing capacity in a RawBytes to permit a single allocation to be reused across rows. When a RawBytes is reused across queries, this can result in database/sql writing to driver-owned memory. Add a buffer to Rows to store RawBytes data, and reuse this buffer across calls to Rows.Scan. Fixes #65201 Change-Id: Iac640174c7afa97eeb39496f47dec202501b2483 Reviewed-on: https://go-review.googlesource.com/c/go/+/557917 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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