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 10:20:55 -0800 |
| commit | 174388981606378894ab74cae9467d5bbf0e5830 (patch) | |
| tree | 490815425a0e7de466e0bf31d468affa32ad0068 /drivers/scsi | |
| parent | 24fa7e7df85aae43e2ac0af24a56ca093a613460 (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 185e6bc4dd4..9e8fce0f0c1 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -2900,7 +2900,7 @@ 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; } |