The copy_from_user_mmap_sem function in fs/splice.c in the Linux
kernel 2.6.22 through 2.6.24 does not validate a certain userspace
pointer before dereference, which allow local users to read from
arbitrary kernel memory locations.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20080212 CSA-L03: Linux kernel vmsplice unchecked user-pointer dereference
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