https://git.reactos.org/?p=reactos.git;a=commitdiff;h=04f0c7d0d7d3d9981476cca55372bdf49d200a1e
commit 04f0c7d0d7d3d9981476cca55372bdf49d200a1e Author: Timo Kreuzer <[email protected]> AuthorDate: Tue May 15 12:43:37 2018 +0200 Commit: Timo Kreuzer <[email protected]> CommitDate: Sun Sep 20 23:08:17 2020 +0200 [NTOS:KE] Zero out ExceptionFrame member in Syscall handler --- ntoskrnl/ke/amd64/stubs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/ntoskrnl/ke/amd64/stubs.c b/ntoskrnl/ke/amd64/stubs.c index ff973935d69..b5ae60a550d 100644 --- a/ntoskrnl/ke/amd64/stubs.c +++ b/ntoskrnl/ke/amd64/stubs.c @@ -330,6 +330,9 @@ KiSystemCallHandler( TrapFrame->TrapFrame = (ULONG64)Thread->TrapFrame; Thread->TrapFrame = TrapFrame; + /* We don't have an exception frame yet */ + TrapFrame->ExceptionFrame = 0; + /* Before enabling interrupts get the user rsp from the KPCR */ UserRsp = __readgsqword(FIELD_OFFSET(KIPCR, UserRsp)); TrapFrame->Rsp = UserRsp;
