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sys: FspFsvolQueryDirectoryCopy

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Correct bounds checking on FSP_FSCTL_DIR_INFO records.
This commit is contained in:
Bill Zissimopoulos
2026-07-27 16:23:45 +03:00
parent a744d6f24c
commit 97e6d92b5b
1 changed files with 2 additions and 1 deletions
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src/sys/dirctl.c
+2 -1
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@@ -179,7 +179,8 @@ static NTSTATUS FspFsvolQueryDirectoryCopy(
{ {
DirInfoSize = DirInfo->Size; DirInfoSize = DirInfo->Size;
if (sizeof(FSP_FSCTL_DIR_INFO) > DirInfoSize) if (sizeof(FSP_FSCTL_DIR_INFO) > DirInfoSize ||
(SIZE_T)(DirInfoEnd - (PUINT8)DirInfo) < DirInfoSize)
{ {
if (0 == *PDestLen) if (0 == *PDestLen)
return STATUS_NO_MORE_FILES; return STATUS_NO_MORE_FILES;