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From: Samium Gromoff <_deepfire@feelingofgreen.ru>
To: Alan <alan@lxorguk.ukuu.org.uk>
Cc: Samium Gromoff <_deepfire@feelingofgreen.ru>,
Pavel Machek <pavel@ucw.cz>,
Valdis.Kletnieks@vt.edu, David Wagner <daw@cs.berkeley.edu>,
linux-kernel@vger.kernel.org
Subject: [PATCH 2/2] Make the EF_AS_NO_RANDOM e_flag bit disable PF_RANDOMIZE
Date: Tue, 23 Jan 2007 23:31:12 +0300 [thread overview]
Message-ID: <8764ax8oz3.wl@betelheise.deep.net> (raw)
In-Reply-To: <20070123154127.57059632@localhost.localdomain>
Author: Samium Gromoff <deepfire@betelheise.deep.net>
Date: Tue Jan 23 23:12:16 2007 +0300
load_elf_binary: do not set PF_RANDOMIZE if the ELF file has EF_AS_NO_RANDOM s
et
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 7cb2872..007dedd 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -780,7 +780,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct p
t_regs *regs)
if (elf_read_implies_exec(loc->elf_ex, executable_stack))
current->personality |= READ_IMPLIES_EXEC;
- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space)
+ if (!(current->personality & ADDR_NO_RANDOMIZE) &&
+ !(loc->elf_ex.e_flags & EF_AS_NO_RANDOM) && randomize_va_space)
current->flags |= PF_RANDOMIZE;
arch_pick_mmap_layout(current->mm);
next prev parent reply other threads:[~2007-01-23 20:31 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-21 23:23 [PATCH] Undo some of the pseudo-security madness Samium Gromoff
2007-01-21 23:34 ` David Wagner
2007-01-22 0:36 ` Kyle Moffett
2007-01-22 1:53 ` Samium Gromoff
2007-02-24 9:40 ` Florian Weimer
2007-02-24 13:33 ` Samium Gromoff
2007-02-24 13:49 ` Florian Weimer
2007-01-22 15:20 ` Valdis.Kletnieks
2007-01-22 17:39 ` Samium Gromoff
2007-01-23 8:48 ` Pavel Machek
2007-01-23 14:03 ` Samium Gromoff
2007-01-23 15:41 ` Alan
2007-01-23 20:21 ` [PATCH 0/2] Mechanism to turn of ASR on a per-ELF binary basis Samium Gromoff
2007-01-23 20:28 ` [PATCH 1/2] Define the EF_AS_NO_RANDOM e_flag bit Samium Gromoff
2007-01-23 20:50 ` Jakub Jelinek
2007-01-23 21:06 ` Samium Gromoff
2007-01-23 21:16 ` Jakub Jelinek
2007-01-23 21:54 ` Samium Gromoff
2007-01-23 23:21 ` Samium Gromoff
2007-01-24 17:08 ` Pavel Machek
2007-01-29 1:18 ` Arjan van de Ven
2007-01-23 20:31 ` Samium Gromoff [this message]
2007-02-24 9:51 ` [PATCH] Undo some of the pseudo-security madness Florian Weimer
2007-02-24 13:36 ` Samium Gromoff
2007-01-31 9:59 ` Arjan van de Ven
2007-02-01 8:05 ` Florian Weimer
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