From: Andrew Morton <akpm@linux-foundation.org>
To: netdev@vger.kernel.org
Cc: "bugme-daemon@kernel-bugs.osdl.org"
<bugme-daemon@bugzilla.kernel.org>,
matthias.kaehlcke@gmail.com,
lksctp-developers@lists.sourceforge.net
Subject: Re: [Bugme-new] [Bug 8342] New: sctp_getsockopt_local_addrs_old() calls copy_to_user() while a spinlock is held
Date: Fri, 20 Apr 2007 14:35:00 -0700 [thread overview]
Message-ID: <20070420143500.cdac0fab.akpm@linux-foundation.org> (raw)
In-Reply-To: <200704162134.l3GLYMuF004745@fire-2.osdl.org>
On Mon, 16 Apr 2007 14:34:22 -0700
bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=8342
>
> Summary: sctp_getsockopt_local_addrs_old() calls copy_to_user()
> while a spinlock is held
> Kernel Version: 2.6.20
> Status: NEW
> Severity: normal
> Owner: acme@ghostprotocols.net
> Submitter: matthias.kaehlcke@gmail.com
>
>
> Problem Description:
>
> sctp_getsockopt_local_addrs_old() in net/sctp/socket.c calls copy_to_user()
> while the spinlock addr_lock is held. this should not be done as copy_to_user()
> might sleep. the call to sctp_copy_laddrs_to_user() while holding the lock is
> also problematic as it calls copy_to_user()
>
yup.
next parent reply other threads:[~2007-04-20 21:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200704162134.l3GLYMuF004745@fire-2.osdl.org>
2007-04-20 21:35 ` Andrew Morton [this message]
2007-04-23 17:43 ` [Bugme-new] [Bug 8342] New: sctp_getsockopt_local_addrs_old() calls copy_to_user() while a spinlock is held Vlad Yasevich
2007-04-26 4:54 ` David Miller
2007-04-26 13:22 ` Vlad Yasevich
2007-04-29 4:14 ` David Miller
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