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(parent: e451b6d) | 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>
Sun, 7 Oct 2012 15:27:24 +0000 (08:27 -0700)
commit03acba6021da7f7bde0c0886379873791c6e24bf
treed0e1e7cbdc5ee0c912d876a00d413b6227a11404tree | snapshot
parente451b6d10c4afa8244c02b731536bcad8800e6f7commit | diff
staging: comedi: don't dereference user memory for INSN_INTTRIG

commit 5d06e3df280bd230e2eadc16372e62818c63e894 upstream.

`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.

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 | history
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