Author: kib
Date: Thu May 16 13:00:35 2019
New Revision: 347689
URL: https://svnweb.freebsd.org/changeset/base/347689
Log:
arm64: bzero buffer for ucontext in freebsd32_swapcontext().
This change is the same as r340994 for amd64.
PR: 237922
Submitted by: Young <yang...@hotmail.com>
MFC after: 3 days
Modified:
head/sys/arm64/arm64/freebsd32_machdep.c
Modified: head/sys/arm64/arm64/freebsd32_machdep.c
==============================================================================
--- head/sys/arm64/arm64/freebsd32_machdep.c Thu May 16 11:20:02 2019
(r347688)
+++ head/sys/arm64/arm64/freebsd32_machdep.c Thu May 16 13:00:35 2019
(r347689)
@@ -284,6 +284,7 @@ freebsd32_swapcontext(struct thread *td, struct freebs
if (uap->oucp == NULL || uap->ucp == NULL)
ret = EINVAL;
else {
+ bzero(&uc, sizeof(uc));
get_mcontext32(td, &uc.uc_mcontext, GET_MC_CLEAR_RET);
PROC_LOCK(td->td_proc);
uc.uc_sigmask = td->td_sigmask;
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