X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fbinfmt_elf_fdpic.c;h=c57d9ce5ff7ef85605786fc26200b3fe76df93df;hb=4193d13b2c2b694aa59e629e6daf6269d7922f13;hp=c25256a5c5b0e432f63fe3fd07d8e3a2c61a909b;hpb=9d6e323c687c7b94c703c9b0900a74e5d262d462;p=pandora-kernel.git

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index c25256a5c5b0..c57d9ce5ff7e 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -170,6 +170,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
 	unsigned long stack_size, entryaddr;
 #ifdef ELF_FDPIC_PLAT_INIT
 	unsigned long dynaddr;
+#endif
+#ifndef CONFIG_MMU
+	unsigned long stack_prot;
 #endif
 	struct file *interpreter = NULL; /* to shut gcc up */
 	char *interpreter_name = NULL;
@@ -316,6 +319,8 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
 	 * defunct, deceased, etc. after this point we have to exit via
 	 * error_kill */
 	set_personality(PER_LINUX_FDPIC);
+	if (elf_read_implies_exec(&exec_params.hdr, executable_stack))
+		current->personality |= READ_IMPLIES_EXEC;
 	set_binfmt(&elf_fdpic_format);
 
 	current->mm->start_code = 0;
@@ -377,9 +382,13 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm,
 	if (stack_size < PAGE_SIZE * 2)
 		stack_size = PAGE_SIZE * 2;
 
+	stack_prot = PROT_READ | PROT_WRITE;
+	if (executable_stack == EXSTACK_ENABLE_X ||
+	    (executable_stack == EXSTACK_DEFAULT && VM_STACK_FLAGS & VM_EXEC))
+		stack_prot |= PROT_EXEC;
+
 	down_write(&current->mm->mmap_sem);
-	current->mm->start_brk = do_mmap(NULL, 0, stack_size,
-					 PROT_READ | PROT_WRITE | PROT_EXEC,
+	current->mm->start_brk = do_mmap(NULL, 0, stack_size, stack_prot,
 					 MAP_PRIVATE | MAP_ANONYMOUS |
 					 MAP_UNINITIALIZED | MAP_GROWSDOWN,
 					 0);
@@ -1798,11 +1807,11 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 	ELF_CORE_WRITE_EXTRA_DATA;
 #endif
 
-	if (file->f_pos != offset) {
+	if (cprm->file->f_pos != offset) {
 		/* Sanity check */
 		printk(KERN_WARNING
 		       "elf_core_dump: file->f_pos (%lld) != offset (%lld)\n",
-		       file->f_pos, offset);
+		       cprm->file->f_pos, offset);
 	}
 
 end_coredump: