diff options
Diffstat (limited to 'egg/egg-secure-memory.c')
| -rw-r--r-- | egg/egg-secure-memory.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/egg/egg-secure-memory.c b/egg/egg-secure-memory.c index bc82184a..3dca8fb5 100644 --- a/egg/egg-secure-memory.c +++ b/egg/egg-secure-memory.c @@ -885,6 +885,19 @@ sec_acquire_pages (size_t *sz, DEBUG_ALLOC ("gkr-secure-memory: new block ", *sz); +#if defined(HAVE_MADV_DONTDUMP) + if (madvise (pages, *sz, MADV_DONTDUMP) < 0) { + if (show_warning && egg_secure_warnings) { + /* + * Not fatal - this was added in Linux 3.4 and older + * kernels will legitimately fail this at runtime + */ + fprintf (stderr, "couldn't MADV_DONTDUMP %lu bytes of memory (%s): %s\n", + (unsigned long)*sz, during_tag, strerror (errno)); + } + } +#endif + show_warning = 1; return pages; |