linux-kernel - Re: [PATCH RT] fix faulting bomb in futex_unlock

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Message-Id: <1180581524.21781.39.camel@localhost.localdomain>
Date:	Wed, 30 May 2007 23:18:44 -0400
From:	Steven Rostedt <rostedt@...dmis.org>
To:	john stultz <johnstul@...ibm.com>
Cc:	lkml <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Sripathi Kodi <sripathik@...ibm.com>,
	Ulrich Drepper <drepper@...il.com>
Subject: Re: [PATCH RT] fix faulting bomb in futex_unlock_pi64

Ingo,

This patch contains both John's and mine for -rt. Might as well make it
a single patch to pull in.

Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
Signed-off-by: John Stultz <johnstul@...ibm.com>

---
Index: linux-2.6.21-rt9/kernel/futex.c
===================================================================
--- linux-2.6.21-rt9.orig/kernel/futex.c	2007-05-30 23:12:34.000000000 -0400
+++ linux-2.6.21-rt9/kernel/futex.c	2007-05-30 23:17:05.000000000 -0400
@@ -1839,6 +1839,7 @@ static int futex_lock_pi(u32 __user *uad
 			ret = -EFAULT;
 			goto out_unlock_release_sem;
 		}
+		uval = 0;
 		goto retry_locked;
 	}
 
@@ -3503,6 +3504,7 @@ pi_faulted:
 			ret = -EFAULT;
 			goto out_unlock;
 		}
+		uval = 0;
 		goto retry_locked;
 	}
 


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