load_elf_binary() sets current->mm->def_flags = def_flags and
def_flags is always zero. Not only this looks strange, this is
unnecessary because mm_init() has already set ->def_flags = 0.
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
fs/binfmt_elf.c | 4 ----
1 files changed, 0 insertions(+), 4 deletions(-)
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 571a423..19f569c 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -582,7 +582,6 @@ static int load_elf_binary(struct linux_binprm *bprm)
unsigned long start_code, end_code, start_data, end_data;
unsigned long reloc_func_desc __maybe_unused = 0;
int executable_stack = EXSTACK_DEFAULT;
- unsigned long def_flags = 0;
struct pt_regs *regs = current_pt_regs();
struct {
struct elfhdr elf_ex;
@@ -722,9 +721,6 @@ static int load_elf_binary(struct linux_binprm *bprm)
if (retval)
goto out_free_dentry;
- /* OK, This is the point of no return */
- current->mm->def_flags = def_flags;
-
/* Do this immediately, since STACK_TOP as used in setup_arg_pages
may depend on the personality. */
SET_PERSONALITY(loc->elf_ex);
--
1.5.5.1
--
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