Commit 76606369 authored by hjk's avatar hjk

Debugger: Mention possibility to globally disable ptrace_scope.

Change-Id: I71cb34635711477508bda08c84bd998344346142
Reviewed-by: default avatarhjk <hjk121@nokiamail.com>
parent ab8878fd
......@@ -1327,8 +1327,10 @@
However, the usefulness of this security measure seems dubious,
because this feature can be easily disabled. With root permissions, you can
disable the feature immediately by writing \c{0} into
\c{/proc/sys/kernel/yama/ptrace_scope}. Even if you do not have elevated
disable the feature temporarily by writing \c{0} into
\c{/proc/sys/kernel/yama/ptrace_scope} or permanently by changing
the value in \c{/etc/sysctl.d/10-ptrace.conf}.
Even if you do not have elevated
permissions, you can disable the feature later by adding a library that
calls \c{prctl(0x59616d61, getppid(), 0, 0, 0);}, such as the one in
\c{$QTCREATORDIR/lib/libptracepreload.so} to the LD_PRELOAD environment.
......
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