The xfs_swapext function in fs/xfs/xfs_dfrag.c in the Linux kernel
before 2.6.35 does not properly check the file descriptors passed to
the SWAPEXT ioctl, which allows local users to leverage write access
and obtain read access by swapping one file into another file.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20110211 VMSA-2011-0003 Third party component updates for VMware vCenter Server, vCenter Update Manager, ESXi and ESX
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