src/patches/suse-2.6.27.39/patches.arch/s390-personality-mask.patch

   1 Subject: [PATCH] fix s390x_newuname
   2
   3 From: Martin Schwidefsky <schwidefsky@de.ibm.com>
   4
   5 The uname system call for 64 bit compares current->personality without
   6 masking the upper 16 bits. If e.g. READ_IMPLIES_EXEC is set the result
   7 of a uname system call will always be s390x even if the process uses
   8 the s390 personality.
   9
  10 Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
  11 Acked-by: John Jolly <jjolly@novell.com>
  12 ---
  13  arch/s390/kernel/sys_s390.c |    2 +-
  14  1 file changed, 1 insertion(+), 1 deletion(-)
  15
  16 --- a/arch/s390/kernel/sys_s390.c
  17 +++ b/arch/s390/kernel/sys_s390.c
  18 @@ -199,7 +199,7 @@ SYSCALL_DEFINE1(s390_newuname, struct ne
  19  {
  20         int ret = sys_newuname(name);
  21
  22 -       if (current->personality == PER_LINUX32 && !ret) {
  23 +       if (personality(current->personality) == PER_LINUX32 && !ret) {
  24                 ret = copy_to_user(name->machine, "s390\0\0\0\0", 8);
  25                 if (ret) ret = -EFAULT;
  26         }