From: Alexander Nyberg <alexn@dsv.su.se>
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] Errenous use of memset and memcpy
Date: Sun, 20 Feb 2005 10:38:42 +0000 [thread overview]
Message-ID: <1108895922.2272.1.camel@boxen> (raw)
In-Reply-To: <1108848352.682.2.camel@boxen>
> That should be copy_from_user, and the error checking needs to stay.
>
Makes sense, thanks.
=== arch/ia64/ia32/ia32_signal.c 1.35 vs edited ==--- 1.35/arch/ia64/ia32/ia32_signal.c 2005-01-25 21:23:45 +01:00
+++ edited/arch/ia64/ia32/ia32_signal.c 2005-02-20 11:32:55 +01:00
@@ -460,9 +460,9 @@ __ia32_rt_sigsuspend (compat_sigset_t *s
sigset_t oldset, set;
scr->scratch_unat = 0; /* avoid leaking kernel bits to user level */
- memset(&set, 0, sizeof(&set));
+ memset(&set, 0, sizeof(sigset_t));
- if (memcpy(&set.sig, &sset->sig, sigsetsize))
+ if (copy_from_user(&set.sig, &sset->sig, sigsetsize))
return -EFAULT;
sigdelsetmask(&set, ~_BLOCKABLE);
next prev parent reply other threads:[~2005-02-20 10:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-19 21:25 [PATCH] Errenous use of memset and memcpy Alexander Nyberg
2005-02-19 21:55 ` Andreas Schwab
2005-02-20 10:38 ` Alexander Nyberg [this message]
2005-02-22 17:37 ` Bjorn Helgaas
2005-03-03 20:53 ` Arun Sharma
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