[Bug 24193] ptrace protection in Ubuntu 10.10 breaks debuggers (affects winedbg, wow, ...)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=24193

--- Comment #7 from Henri Verbeet <hverbeet at gmail.com> 2010-09-13 12:10:59 CDT ---
(In reply to comment #6)
> Ubuntu has added prctl(PR_SET_PTRACER, debugger_pid, 0, 0, 0); as the way to
> declare PTRACE relationships for crash handlers (or wardens).  For an example,
> see how kdelibs was patched:
> 
> http://launchpadlibrarian.net/51487035/kde4libs_4%3A4.4.90-0ubuntu2_4%3A4.4.90-0ubuntu3.diff.gz
> 
> It should be possible for a process to specify which process families are
> allowed to PTRACE it.

Did PR_SET_PTRACER actually make it into the mainline kernel then? 0x59616d61 /
"Yama" certainly looks magic.

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