usb: typec: tcpm: Defensively bound altmode array accesses

While svdm_consume_modes() already prevents mode_data.altmodes from
exceeding ALTMODE_DISCOVERY_MAX during SVDM discovery, defensively
bounding array iteration indices against ALTMODE_DISCOVERY_MAX in altmode
registration and unregistration helpers guarantees protection against
out-of-bounds accesses in the event of memory corruption.

Ensure that tcpm_register_plug_altmodes() is also bounded alongside
tcpm_register_partner_altmodes() and tcpm_unregister_altmodes.

Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
Reviewed-by: RD Babiera <rdbabiera@google.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://patch.msgid.link/20260629225729.2749896-1-badhri@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions