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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2015-03-17 12:17:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-26 23:00:36 +0100 |
| commit | a666b54adabc7dd40d754671a26996e6c985ae1b (patch) | |
| tree | eafdaa1b060e9455efeda541e5feb783f996d764 | |
| parent | 136debf707d2b3cd8e74d0fff8e29d11a78bf5c2 (diff) | |
| download | linux-a666b54adabc7dd40d754671a26996e6c985ae1b.tar.gz linux-a666b54adabc7dd40d754671a26996e6c985ae1b.tar.xz | |
serial: jsm: some off by one bugs
"brd->nasync" amd "brd->maxports" are the same. They hold the number of
filled out channels in the brd->channels[] array. These tests should
be ">=" instead of ">" so that we don't read one element past the end.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/jsm/jsm_cls.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/jsm/jsm_neo.c | 6 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/serial/jsm/jsm_cls.c b/drivers/tty/serial/jsm/jsm_cls.c index bfb0681195b6..4eb12a9cae76 100644 --- a/drivers/tty/serial/jsm/jsm_cls.c +++ b/drivers/tty/serial/jsm/jsm_cls.c @@ -570,7 +570,7 @@ static inline void cls_parse_isr(struct jsm_board *brd, uint port) * verified in the interrupt routine. */ - if (port > brd->nasync) + if (port >= brd->nasync) return; ch = brd->channels[port]; diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c index 7291c2117daa..932b2accd06f 100644 --- a/drivers/tty/serial/jsm/jsm_neo.c +++ b/drivers/tty/serial/jsm/jsm_neo.c @@ -724,7 +724,7 @@ static inline void neo_parse_isr(struct jsm_board *brd, u32 port) if (!brd) return; - if (port > brd->maxports) + if (port >= brd->maxports) return; ch = brd->channels[port]; @@ -840,7 +840,7 @@ static inline void neo_parse_lsr(struct jsm_board *brd, u32 port) if (!brd) return; - if (port > brd->maxports) + if (port >= brd->maxports) return; ch = brd->channels[port]; @@ -1180,7 +1180,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd) */ /* Verify the port is in range. */ - if (port > brd->nasync) + if (port >= brd->nasync) continue; ch = brd->channels[port]; |