checkpatch: add ability to find bad uses of vsprintf %p<foo> extensions
authorJoe Perches <joe@perches.com>
Mon, 8 May 2017 22:55:36 +0000 (15:55 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 9 May 2017 00:15:10 +0000 (17:15 -0700)
commit0b523769ebb9473c60df1b0f70615aa82ebac2c9
tree7e9d9ac957dffd3a98750d4a82ece52286692774
parentcd8618ab3df3ac6018cecb9dc626ff72c39eb503
checkpatch: add ability to find bad uses of vsprintf %p<foo> extensions

%pK was at least once misused at %pk in an out-of-tree module.  This
lead to some security concerns.  Add the ability to track single and
multiple line statements for misuses of %p<foo>.

[akpm@linux-foundation.org: add helpful comment into lib/vsprintf.c]
[akpm@linux-foundation.org: text tweak]
Link: http://lkml.kernel.org/r/163a690510e636a23187c0dc9caa09ddac6d4cde.1488228427.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: William Roberts <william.c.roberts@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
lib/vsprintf.c
scripts/checkpatch.pl