0008879d13
The routine wma_unified_debug_print_event_handler logs the data from debug print event handler. The param event data from firmware is copied to a destination buffer .If the maximum size of the data exceeds or equals BIG_ENDIAN_MAX_DEBUG_BUF for big endian hosts then possible OOB write will occur in wma_unified_debug_print_event_handler. For other hosts, OOB read could occur if datalen exceeds maximum firmware message size WMI_SVC_MAX_SIZE. Add check to validate datalen doesnot exceed the maximum firmware msg size WMI_SVC_MAX_SIZE. Return failure if it exceeds. Add check to ensure datalen doesnot exceed or equal the maximum buffer length value for big endian hosts BIG_ENDIAN_MAX_DEBUG_BUF. Invoke strlcpy instead of memcpy to ensure the string is null terminated before printed. Change-Id: I45943ae76d8fcf7b53e1f064c462d01cd6d00dcf CRs-Fixed: 2211133 |
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