netdev - Re: [PATCH net-next] ibmvnic: Fix use-after-free of VNIC login response buffer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20200824.155717.1039756430861840951.davem@davemloft.net>
Date:   Mon, 24 Aug 2020 15:57:17 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     tlfalcon@...ux.ibm.com
Cc:     netdev@...r.kernel.org, drt@...ux.vnet.ibm.com
Subject: Re: [PATCH net-next] ibmvnic: Fix use-after-free of VNIC login
 response buffer

From: Thomas Falcon <tlfalcon@...ux.ibm.com>
Date: Fri, 21 Aug 2020 13:39:01 -0500

> The login response buffer is freed after it is received
> and parsed, but other functions in the driver still attempt
> to read it, such as when the device is opened, causing the
> Oops below. Store relevant information in the driver's
> private data structures and use those instead.
 ...
> Fixes: f3ae59c0c015 ("ibmvnic: store RX and TX subCRQ handle array in ibmvnic_adapter struct")
> Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>

Applied, thanks.