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Bug#: 193386
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Status: NEW
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Assigned To: Gentoo Security <security@gentoo.org>
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Reporter: Christian Heim (RETIRED) <phreak@gentoo.org>
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Description:   Opened: 2007-09-22 07:19 0000 
x86_64: Zero extend all registers after ptrace in 32bit entry path.

Strictly it's only needed for eax. It actually does a little more than strictly
needed -- the other registers are already zero extended.

Also remove the now unnecessary and non functional compat task check in ptrace.

-- genpatches provides a fix w/ 2.6.22-8 (including 2.6.22.7).

------- Comment #1 From Christian Heim (RETIRED) 2007-09-23 16:24:47 0000 ------- 
genpatches-2.6.20-17 also contains the patch.

------- Comment #2 From Pierre-Yves Rofes 2007-09-26 09:37:31 0000 ------- 
unrestricting, this is public now:
http://secunia.com/advisories/26934/

------- Comment #3 From Sven Wegener 2007-10-11 14:13:16 0000 ------- 
*** Bug 195501 has been marked as a duplicate of this bug. ***

------- Comment #4 From Robert Buchholz 2007-10-23 20:18:17 0000 ------- 
*** Bug 196826 has been marked as a duplicate of this bug. ***
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