The __secure_computing function in kernel/seccomp.c in the seccomp
subsystem in the Linux kernel 188.8.131.52 and earlier on the x86_64
platform, when CONFIG_SECCOMP is enabled, does not properly handle (1)
a 32-bit process making a 64-bit syscall or (2) a 64-bit process
making a 32-bit syscall, which allows local users to bypass intended
access restrictions via crafted syscalls that are misinterpreted as
(a) stat or (b) chmod, a related issue to CVE-2009-0342 and
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