A weakness has been reported in the Linux Kernel, which can be exploited by malicious, local users to disclose certain system information.
The weakness is caused due to the "xfs_fs_geometry()" function in fs/xfs/xfs_fsops.c is not properly initialising the "logsunit" member of the "xfs_fsop_geom_t" structure before copying it to userspace, which can be exploited to disclose kernel stack memory.
Solution: Update to version 2.6.38.
Provided and/or discovered by: Dan Rosenberg
Original Advisory: https://patchwork.kernel.org/patch/555461/
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Subject: Linux Kernel "xfs_fs_geometry()" Memory Disclosure Weakness
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