The ocfs2_prepare_page_for_write function in fs/ocfs2/aops.c in the
Oracle Cluster File System 2 (OCFS2) subsystem in the Linux kernel
before 2.6.39-rc1 does not properly handle holes that cross page
boundaries, which allows local users to obtain potentially sensitive
information from uninitialized disk locations by reading a file.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[ocfs2-devel] 20110217 [PATCH] Treat writes as new when holes span across page boundaries
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