https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196694
Bug ID: 196694
Summary: libmd doesn't detect EOF properly; can get stuck in an
infinite loop in MDXFileChunk
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: bin
Assignee: freebsd-bugs@FreeBSD.org
Reporter: n...@freebsd.org
Created attachment 151578
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=151578&action=edit
Patch for fixing the md5 infinite loop
read(2) can return 0 if an EOF is encountered. The problem is that the loop in
MDXFileChunk doesn't account for this, so any callers of the API can encounter
an infinite loop on EOF (which includes md5).
The attached patch addresses this issue.
Sponsored by: EMC / Isilon Storage Division
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