Red Hat Bugzilla – Bug 148863
CAN-2005-0136 ptrace corner cases on ia64
Last modified: 2007-11-30 17:06:54 EST
*** This bug has been split off bug 148862 ***
------- Original comment by Mark J. Cox (Security Response Team) on 2005.02.16
Read the description of this issue at
A patch for 2.6 was committed:
Impact looks like it is a unprivileged DoS at least, possibly more.
Currently embargoed, no date set.
public, removing embargo
Created attachment 113339 [details]
test cast to reproduce issue.
test case passed from intel to recreate this problem
This is not an issue on AS2.1/ia64 because the mechanisms described
(syscall_trace_enter/syscall_trace_leave) are not implemented there. The only
calls to syscall_trace are through an assembly-language wrapper
(invoke_syscall_trace) that does the proper preservation of arg registers.