https://git.reactos.org/?p=reactos.git;a=commitdiff;h=293f8230536c79128f380f2dd69d2c684b4167f9
commit 293f8230536c79128f380f2dd69d2c684b4167f9 Author: Jérôme Gardou <[email protected]> AuthorDate: Thu Jun 17 16:33:33 2021 +0200 Commit: Jérôme Gardou <[email protected]> CommitDate: Mon Jun 28 10:20:57 2021 +0200 [NTOS:IO] Check RtlAnsiStringToUnicodeString return value when initializing ramdisk CORE-17637 --- ntoskrnl/include/internal/io.h | 4 ++++ ntoskrnl/io/iomgr/ramdisk.c | 10 +++++++++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/ntoskrnl/include/internal/io.h b/ntoskrnl/include/internal/io.h index 095d63bbefc..46470e9835c 100644 --- a/ntoskrnl/include/internal/io.h +++ b/ntoskrnl/include/internal/io.h @@ -80,6 +80,10 @@ // Unable to create symbolic link pointing to the RAM disk device // #define RD_SYMLINK_CREATE_FAILED 5 +// +// Unable to create system root path when creating the RAM disk +// +#define RD_SYSROOT_INIT_FAILED 6 // // Max traversal of reparse points for a single open in IoParseDevice diff --git a/ntoskrnl/io/iomgr/ramdisk.c b/ntoskrnl/io/iomgr/ramdisk.c index b959e964fff..d83bb8050cb 100644 --- a/ntoskrnl/io/iomgr/ramdisk.c +++ b/ntoskrnl/io/iomgr/ramdisk.c @@ -262,7 +262,15 @@ IopStartRamdisk(IN PLOADER_PARAMETER_BLOCK LoaderBlock) RtlInitEmptyUnicodeString(&NtSystemRoot, SharedUserData->NtSystemRoot, sizeof(SharedUserData->NtSystemRoot)); - RtlAnsiStringToUnicodeString(&NtSystemRoot, &AnsiPath, FALSE); + Status = RtlAnsiStringToUnicodeString(&NtSystemRoot, &AnsiPath, FALSE); + if (!NT_SUCCESS(Status)) + { + KeBugCheckEx(RAMDISK_BOOT_INITIALIZATION_FAILED, + RD_SYSROOT_INIT_FAILED, + Status, + 0, + 0); + } IoCreateSymbolicLink(&DriveLetter, &DeviceString); }
