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a89f07db0cisst_if_clos_assoc() validates the user-supplied socket_id with
'socket_id > topology_max_packages()', but isst_common.sst_inst[] is
allocated with topology_max_packages() entries, so the valid index range
is [0, topology_max_packages()). The '>' comparison lets
socket_id == topology_max_packages() pass and index one entry past the
array.
In addition, isst_common.sst_inst[socket_id] is NULL for an in-range
package that has no bound TPMI SST instance, and the pointer is used
without a NULL check. Both the out-of-bounds entry and the NULL pointer
are then dereferenced by map_partition_power_domain_id() and the
following power_domain_info access.
Reject socket_id >= topology_max_packages() and a NULL sst_inst, matching
the checks already performed by get_instance().
Fixes:
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| arm64 | ||
| chrome | ||
| cznic | ||
| goldfish | ||
| loongarch | ||
| mellanox | ||
| mips | ||
| olpc | ||
| raspberrypi | ||
| surface | ||
| wmi | ||
| x86 | ||
| Kconfig | ||
| Makefile | ||