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* + proc-fix-races-against-execve-of-proc-pid-fd-fix.patch added to -mm tree
@ 2011-09-02 22:21 akpm
  0 siblings, 0 replies; only message in thread
From: akpm @ 2011-09-02 22:21 UTC (permalink / raw)
  To: mm-commits; +Cc: segooon, gorcunov, segoon


The patch titled
     proc-fix-races-against-execve-of-proc-pid-fd-fix
has been added to the -mm tree.  Its filename is
     proc-fix-races-against-execve-of-proc-pid-fd-fix.patch

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------------------------------------------------------
Subject: proc-fix-races-against-execve-of-proc-pid-fd-fix
From: Vasiliy Kulikov <segooon@gmail.com>

In the patch "proc: fix races against execve() of /proc/PID/fd**"
proc_pid_fd_link_getattr() leaked task_struct if ptrace check fails.

Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/proc/base.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN fs/proc/base.c~proc-fix-races-against-execve-of-proc-pid-fd-fix fs/proc/base.c
--- a/fs/proc/base.c~proc-fix-races-against-execve-of-proc-pid-fd-fix
+++ a/fs/proc/base.c
@@ -1681,9 +1681,9 @@ static int proc_pid_fd_link_getattr(stru
 
 	generic_fillattr(inode, stat);
 	unlock_trace(task);
-	put_task_struct(task);
 	rc = 0;
 out_task:
+	put_task_struct(task);
 	return rc;
 }
 
_

Patches currently in -mm which might be from segooon@gmail.com are

proc-fix-races-against-execve-of-proc-pid-fd-fix.patch


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2011-09-02 22:21 + proc-fix-races-against-execve-of-proc-pid-fd-fix.patch added to -mm tree akpm

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