[reactos] 01/01: [UNIATA] Fix memory corruption if SCSIOP_SERVICE_ACTION16 processed. (#7717)

[Max Korostil]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=606e996e1fcfe9f358a1e7...

commit 606e996e1fcfe9f358a1e77f6da71bfbd845b6c6
Author:     Max Korostil [e-mail]
AuthorDate: Sun Mar 2 21:07:34 2025 +0300
Commit:     GitHub [e-mail]
CommitDate: Sun Mar 2 19:07:34 2025 +0100

[UNIATA] Fix memory corruption if SCSIOP_SERVICE_ACTION16 processed. (#7717)

Reason: the size of `READ_CAPACITY16_DATA` struct in UniATA driver and ReactOS/Windows SDK were not equal.

- In UniATA driver: `sizeof(READ_CAPACITY16_DATA) == 33` (wrong);
    - In ReactOS/Windows SDK: `sizeof(READ_CAPACITY16_DATA) == 32` (correct).

CORE-19696
---
 drivers/storage/ide/uniata/scsi.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/storage/ide/uniata/scsi.h b/drivers/storage/ide/uniata/scsi.h
index 9d85cf14d59..9a599114da3 100644
--- a/drivers/storage/ide/uniata/scsi.h
+++ b/drivers/storage/ide/uniata/scsi.h
@@ -1433,7 +1433,13 @@ typedef struct _READ_CAPACITY16_DATA {
     UCHAR Prot_EN:1;
     UCHAR RTO_EN:1;
     UCHAR Reserved:6;
+#ifdef __REACTOS__
+    /* In ReactOS SDK sizeof(READ_CAPACITY16_DATA) == 32.
+     * Fixes CORE-19696 memory corruption on SCSIOP_SERVICE_ACTION16. */
+    UCHAR Reserved1[19];
+#else
     UCHAR Reserved1[20];
+#endif
 } READ_CAPACITY16_DATA, *PREAD_CAPACITY16_DATA;

// CD ROM Read Table Of Contents (TOC) structures