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(parent: 9f82e95) | patch
staging: comedi: don't dereference user memory for INSN_INTTRIG
authorIan Abbott <abbotti@mev.co.uk>
Tue, 18 Sep 2012 18:46:58 +0000 (19:46 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Sep 2012 10:26:13 +0000 (11:26 +0100)
commit5d06e3df280bd230e2eadc16372e62818c63e894
tree9918f625d95258bb3c3e94a2cfad3be89306d974tree | snapshot (tar.gz zip)
parent9f82e95773f0f02cfc948c8346a61d161f4eb61bcommit | diff
staging: comedi: don't dereference user memory for INSN_INTTRIG

`parse_insn()` is dereferencing the user-space pointer `insn->data`
directly when handling the `INSN_INTTRIG` comedi instruction.  It
shouldn't be using `insn->data` at all; it should be using the separate
`data` pointer passed to the function.  Fix it.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/comedi_fops.c diff | blob | blame | history