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Commit a4f859cd authored by Sungtak Lee's avatar Sungtak Lee Committed by android-build-merger
Browse files

Handle overflow in android::HeifDataSource::readAt 

am: 237f9034

Change-Id: Idc655aa698903af90455f82b6aa665c6472872f5
parents 0df1e8d0 237f9034

media/libheif/HeifDecoderImpl.cpp

+5 −0
Original line number Diff line number Diff line
@@ -140,6 +140,11 @@ ssize_t HeifDataSource::readAt(off64_t offset, size_t size) { 
    // have been caught above.

    CHECK(offset >= mCachedOffset);



    off64_t resultOffset;

    if (__builtin_add_overflow(offset, size, &resultOffset)) {

        return ERROR_IO;

    }



    if (size == 0) {

        return 0;

    }