| From 318f6b228ba88a394ef560efc1bfe028ad5ae6b6 Mon Sep 17 00:00:00 2001 |
| From: Jiri Slaby <jslaby@suse.cz> |
| Date: Wed, 10 Feb 2010 20:55:16 +0100 |
| Subject: x86, ia32_aout: do not kill argument mapping |
| |
| From: Jiri Slaby <jslaby@suse.cz> |
| |
| commit 318f6b228ba88a394ef560efc1bfe028ad5ae6b6 upstream. |
| |
| Do not set current->mm->mmap to NULL in 32-bit emulation on 64-bit |
| load_aout_binary after flush_old_exec as it would destroy already |
| set brpm mapping with arguments. |
| |
| Introduced by b6a2fea39318e43fee84fa7b0b90d68bed92d2ba |
| mm: variable length argument support |
| where the argument mapping in bprm was added. |
| |
| [ hpa: this is a regression from 2.6.22... time to kill a.out? ] |
| |
| Signed-off-by: Jiri Slaby <jslaby@suse.cz> |
| LKML-Reference: <1265831716-7668-1-git-send-email-jslaby@suse.cz> |
| Cc: Ingo Molnar <mingo@elte.hu> |
| Cc: Thomas Gleixner <tglx@linutronix.de> |
| Cc: Ollie Wild <aaw@google.com> |
| Cc: x86@kernel.org |
| Signed-off-by: H. Peter Anvin <hpa@zytor.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
| |
| --- |
| arch/x86/ia32/ia32_aout.c | 1 - |
| 1 file changed, 1 deletion(-) |
| |
| --- a/arch/x86/ia32/ia32_aout.c |
| +++ b/arch/x86/ia32/ia32_aout.c |
| @@ -327,7 +327,6 @@ static int load_aout_binary(struct linux |
| current->mm->free_area_cache = TASK_UNMAPPED_BASE; |
| current->mm->cached_hole_size = 0; |
| |
| - current->mm->mmap = NULL; |
| install_exec_creds(bprm); |
| current->flags &= ~PF_FORKNOEXEC; |
| |
