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Date: Fri, 20 Apr 2007 14:35:00 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: netdev@...r.kernel.org Cc: "bugme-daemon@...nel-bugs.osdl.org" <bugme-daemon@...zilla.kernel.org>, matthias.kaehlcke@...il.com, lksctp-developers@...ts.sourceforge.net Subject: Re: [Bugme-new] [Bug 8342] New: sctp_getsockopt_local_addrs_old() calls copy_to_user() while a spinlock is held On Mon, 16 Apr 2007 14:34:22 -0700 bugme-daemon@...zilla.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@...stprotocols.net > Submitter: matthias.kaehlcke@...il.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. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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