tree 06c634815dda0e9d8a3ba385302ecbfecf8c816d
parent f67fc5c222f03a956ccc0748995ec470cd874f2e
author Steven Moreland <smoreland@google.com> 1595972514 +0000
committer Anis Assi <anisassi@google.com> 1597335343 -0700

libutils: check vsnprintf error

For encoding errors, this function will return a negative value which
causes problems down the line. Check for an error and return. Also,
integer overflows are guarded.

Bug: 161894517
Test: fuzzer test case
Change-Id: Ia85067d4258bde4b875c832d6223db5dd26b8838
Merged-In: Ia85067d4258bde4b875c832d6223db5dd26b8838
(cherry picked from commit ee22384c54d42149491c8b9dbcda0d8c5e88eddc)