diff options
Diffstat (limited to 'drivers/media/firewire/firedtv-avc.c')
| -rw-r--r-- | drivers/media/firewire/firedtv-avc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/firewire/firedtv-avc.c b/drivers/media/firewire/firedtv-avc.c index d1a1a1324ef8..251a556112a9 100644 --- a/drivers/media/firewire/firedtv-avc.c +++ b/drivers/media/firewire/firedtv-avc.c @@ -1157,6 +1157,10 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) if (pmt_cmd_id != 1 && pmt_cmd_id != 4) dev_err(fdtv->device, "invalid pmt_cmd_id %d\n", pmt_cmd_id); + if (program_info_length > sizeof(c->operand) - 4 - write_pos) { + ret = -EINVAL; + goto out; + } memcpy(&c->operand[write_pos], &msg[read_pos], program_info_length); @@ -1180,6 +1184,12 @@ int avc_ca_pmt(struct firedtv *fdtv, char *msg, int length) dev_err(fdtv->device, "invalid pmt_cmd_id %d " "at stream level\n", pmt_cmd_id); + if (es_info_length > sizeof(c->operand) - 4 - + write_pos) { + ret = -EINVAL; + goto out; + } + memcpy(&c->operand[write_pos], &msg[read_pos], es_info_length); read_pos += es_info_length; |