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(parent: bee8c75) | 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)
commit7779c644edbae738691445e44d5888f4b917eea7
tree4c43ef97d6ecf95df31b4be6c08178b3fa204914tree | snapshot
parentbee8c75a5360ac0a520a6912ad6d6c5de2a7d67ecommit | 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
Linux Kernel Source Tree.