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Red Hat Bugzilla – Attachment 1981565 Details for
Bug 2228923
Buffer Overflow Error attempting to generate a datamatrix png
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[patch]
Proposed patch to fix buffer overflow
buffer-fix.patch (text/plain), 597 bytes, created by
Beau V.C. Bellamy
on 2023-08-04 01:08:28 UTC
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Description:
Proposed patch to fix buffer overflow
Filename:
MIME Type:
Creator:
Beau V.C. Bellamy
Created:
2023-08-04 01:08:28 UTC
Size:
597 bytes
patch
obsolete
>diff dmtx-utils-0.7.6/dmtxwrite/dmtxwrite.c.old dmtx-utils-0.7.6/dmtxwrite/dmtxwrite.c >--- dmtx-utils-0.7.6/dmtxwrite/dmtxwrite.c.old 2023-08-03 17:53:15.648492150 -0500 >+++ dmtx-utils-0.7.6/dmtxwrite/dmtxwrite.c 2023-08-03 17:53:24.564648427 -0500 >@@ -340,7 +340,7 @@ > > /* Read input contents into buffer */ > for(bytesReadTotal = 0;; bytesReadTotal += bytesRead) { >- bytesRead = read(fd, codeBuffer + bytesReadTotal, DMTXWRITE_BUFFER_SIZE); >+ bytesRead = read(fd, codeBuffer + bytesReadTotal, DMTXWRITE_BUFFER_SIZE - bytesReadTotal); > if(bytesRead == 0) > break; >
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