linux-kernel - [PATCH] mm: fix exit_mmap BUG() on a.out binary exit

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Message-ID: <20071220084707.GB28578@jurassic.park.msu.ru>
Date:	Thu, 20 Dec 2007 11:47:07 +0300
From:	Ivan Kokshaysky <ink@...assic.park.msu.ru>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] mm: fix exit_mmap BUG() on a.out binary exit

The problem was introduced by commit "mm: variable length argument
support" (b6a2fea39318e43fee84fa7b0b90d68bed92d2ba)
as it didn't update fs/binfmt_aout.c like other binfmt's.

I noticed that on alpha when accidentally launched old OSF/1
Acrobat Reader binary. Obviously, other architectures are affected
as well.

Signed-off-by: Ivan Kokshaysky <ink@...assic.park.msu.ru>
---
 fs/binfmt_aout.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index e176d19..7596e1e 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -319,7 +319,6 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	current->mm->free_area_cache = current->mm->mmap_base;
 	current->mm->cached_hole_size = 0;
 
-	current->mm->mmap = NULL;
 	compute_creds(bprm);
  	current->flags &= ~PF_FORKNOEXEC;
 #ifdef __sparc__
--
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