tree 5483f2bd7473a09af9721d52ee5cdbed1f00bd2d
parent 51d4d0c1fef16cf1a952efc36c4dc99b8a7c81dc
author James Zern <jzern@google.com> 1658887720 -0700
committer Wan-Teh Chang <wtc@google.com> 1711676094 +0000

y4m_input_fetch_frame: fix ubsan null/zero offset warning

reported under clang-13; use a while loop in file_read() to force a size
check before attempting to read. buf (aux_buf) may be may be null when
no conversion is necessary.

y4minput.c:29:43: runtime error: applying zero offset to null pointer

Bug: b/229626362
Change-Id: Ia3250d6ff9c325faf48eaa31f4399e20837f8f7b
(cherry picked from commit 4a8de4215225b6ee2840e21231d42f063795ca5a)