Commit ccff9629 authored by Stefan Richter's avatar Stefan Richter
Browse files

firewire: fw-ohci: use of uninitialized data in AR handler

header_length and payload_length are filled with random data if an
unknown tcode was read from the AR buffer (i.e. if the AR buffer
contained invalid data).

We still need a better strategy to recover from this, but at least
handle_ar_packet now doesn't return out of bound buffer addresses
Signed-off-by: default avatarStefan Richter <>
parent 0bf607c5
......@@ -548,6 +548,11 @@ static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer)
p.header_length = 12;
p.payload_length = 0;
/* FIXME: Stop context, discard everything, and restart? */
p.header_length = 0;
p.payload_length = 0;
p.payload = (void *) buffer + p.header_length;
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