diff options
| author | Dave Jones <davej@redhat.com> | 2009-10-19 19:55:13 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-08 11:17:03 -0800 |
| commit | 664179bfb83f35f3f9a09a8b2323666882244d35 (patch) | |
| tree | e4a1b84118a2697c9410f4d11fabe9c11fdad641 /drivers/scsi | |
| parent | 9d4cf8bdc0b80550a2c7befff56b8f57acf0f9f7 (diff) | |
gdth: Prevent negative offsets in ioctl CVE-2009-3080
commit 690e744869f3262855b83b4fb59199cf142765b0 upstream.
A negative offset could be used to index before the event buffer and
lead to a security breach.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/gdth.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 822d5214692b..4015499dad2a 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -2912,7 +2912,7 @@ static int gdth_read_event(gdth_ha_str *ha, int handle, gdth_evt_str *estr) eindex = handle; estr->event_source = 0; - if (eindex >= MAX_EVENTS) { + if (eindex < 0 || eindex >= MAX_EVENTS) { spin_unlock_irqrestore(&ha->smp_lock, flags); return eindex; } |