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(parent: 753d433) | patch
vsprintf: Use hw RNG for ptr_key
authorTobin C. Harding <me@tobin.cc>
Thu, 21 Jun 2018 23:15:33 +0000 (09:15 +1000)
committerTheodore Ts'o <tytso@mit.edu>
Wed, 18 Jul 2018 01:32:48 +0000 (21:32 -0400)
commit1c4facb846c7f863bc65483394e80acdbacf671b
tree4c43ef97d6ecf95df31b4be6c08178b3fa204914tree | snapshot
parent753d433b586d1d43c487e3d660f5778c7c8d58eacommit | diff
vsprintf: Use hw RNG for ptr_key

Currently we must wait for enough entropy to become available before
hashed pointers can be printed.  We can remove this wait by using the
hw RNG if available.

Use hw RNG to get keying material.

Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Suggested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
lib/vsprintf.c diff | blob | history
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