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-rw-r--r--drivers/firewire/core-cdev.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index bbb8160e2c9..5eba9e0f876 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -959,6 +959,8 @@ static int ioctl_queue_iso(struct client *client, union ioctl_arg *arg)
u.packet.header_length = GET_HEADER_LENGTH(control);
if (ctx->type == FW_ISO_CONTEXT_TRANSMIT) {
+ if (u.packet.header_length % 4 != 0)
+ return -EINVAL;
header_length = u.packet.header_length;
} else {
/*