K 10
svn:author
V 6
kevans
K 8
svn:date
V 27
2020-04-17T02:09:31.326167Z
K 7
svn:log
V 486
audit_canon_path_vp: don't panic if cdir == NULL

cdir may have simply failed to resolve (e.g. fget_cap failure in namei
leading to NULL dp passed to AUDIT_ARG_UPATH*_VP); restore the pre-rS358191
behavior of setting cpath[0] = '\0' and bailing out instead of panicking.

This was found by inadvertently running the libc/c063 tests with auditing
enabled, resulting in a panic.

Reviewed by:	mjg (committed version actually his)
Differential Revision:	https://reviews.freebsd.org/D24445

END