The z90crypt_unlocked_ioctl function in the z90crypt driver in the
Linux kernel 2.6.9 does not perform a capability check for the
Z90QUIESCE operation, which allows local users to leverage euid 0
privileges to force a driver outage.
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MLIST:[oss-security] 20090915 CVE-2009-1883 kernel: missing capability check in z90crypt
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