فهرست منبع

[S390] personality: fix personality loss on execve

Use the personality() macro to mask out all bits that are not
relevant for the personality type.
The personality field contains bits for other things as well,
so without masking out the not relevalent bits the comparison
won't do what is expected.

Reported-by: Andreas Krebbel <krebbel@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Heiko Carstens 16 سال پیش
والد
کامیت
03e4c49f84
1فایلهای تغییر یافته به همراه8 افزوده شده و 8 حذف شده
  1. 8 8
      arch/s390/include/asm/elf.h

+ 8 - 8
arch/s390/include/asm/elf.h

@@ -172,14 +172,14 @@ extern char elf_platform[];
 #ifndef __s390x__
 #define SET_PERSONALITY(ex) set_personality(PER_LINUX)
 #else /* __s390x__ */
-#define SET_PERSONALITY(ex)				\
-do {							\
-	if (current->personality != PER_LINUX32)	\
-		set_personality(PER_LINUX);		\
-	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)	\
-		set_thread_flag(TIF_31BIT);		\
-	else						\
-		clear_thread_flag(TIF_31BIT);		\
+#define SET_PERSONALITY(ex)					\
+do {								\
+	if (personality(current->personality) != PER_LINUX32)	\
+		set_personality(PER_LINUX);			\
+	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)		\
+		set_thread_flag(TIF_31BIT);			\
+	else							\
+		clear_thread_flag(TIF_31BIT);			\
 } while (0)
 #endif /* __s390x__ */