svn commit: r355162 - stable/12/sys/arm64/linux

[Ed Maste]

Author: emaste
Date: Thu Nov 28 02:19:41 2019
New Revision: 355162
URL: https://svnweb.freebsd.org/changeset/base/355162

Log:
  MFC r354341: arm64 linuxulator: default to RW stack (no X)
  
  This matches Linux's default arm64 data / stack permissions.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  stable/12/sys/arm64/linux/linux_sysvec.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/arm64/linux/linux_sysvec.c
==============================================================================
--- stable/12/sys/arm64/linux/linux_sysvec.c	Thu Nov 28 02:18:51 2019	(r355161)
+++ stable/12/sys/arm64/linux/linux_sysvec.c	Thu Nov 28 02:19:41 2019	(r355162)
@@ -380,7 +380,7 @@ struct sysentvec elf_linux_sysvec = {
 	.sv_maxuser	= VM_MAXUSER_ADDRESS,
 	.sv_usrstack	= USRSTACK,
 	.sv_psstrings	= PS_STRINGS, /* XXX */
-	.sv_stackprot	= VM_PROT_ALL, /* XXX */
+	.sv_stackprot	= VM_PROT_READ | VM_PROT_WRITE,
 	.sv_copyout_strings = linux_copyout_strings,
 	.sv_setregs	= linux_exec_setregs,
 	.sv_fixlimit	= NULL,