tree 84e5aa690c1dc01cf53faa6567715c8ba3aba38f
parent 9dcb25476e37d6738952f52c176b48e452c27d80
author Kevin Rocard <krocard@google.com> 1510600527 -0800
committer Kevin Rocard <krocard@google.com> 1510883186 -0800

IAudioPolicyService: Add attribute tags sanitization

When audio_attributes_t was read from the binder parcel,
the string tags field was copied without checking that
it contained a '\0'.

This could lead to read past the end when tags were used.

This patch always adds a '\0' at the end of the buffer when
deserializing.

Bug: 68953950
Test: manual playback/record
Test: send binder payload without \0 in tags attribute, check that only
      AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - 1 char are printed.
Change-Id: I285258cbf7cfaf26b191d1f31b3b1e2d724c4934
Merged-In: I285258cbf7cfaf26b191d1f31b3b1e2d724c4934
Signed-off-by: Kevin Rocard <krocard@google.com>