diff options
| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-04-10 18:35:21 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-04-10 18:35:21 +0000 |
| commit | 2570f838da7ca82d586304d4669de49ced758bb6 (patch) | |
| tree | cbb31b3dea020f47574baf023caf20d9e0dde77b /ext/fiddle | |
| parent | 3f9e0e43c3a8f5db37f671ad3f957e4fddba0bcb (diff) | |
| download | ruby-2570f838da7ca82d586304d4669de49ced758bb6.tar.gz | |
* ext/fiddle/closure.c (initialize): check mprotect's return value.
If mprotect is failed because of PaX or something, its function call
will cause SEGV.
http://c5664.rubyci.org/~chkbuild/ruby-trunk/log/20130401T210301Z.diff.html.gz
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@40216 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/fiddle')
| -rw-r--r-- | ext/fiddle/closure.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/ext/fiddle/closure.c b/ext/fiddle/closure.c index fdb2233b22..d064f11991 100644 --- a/ext/fiddle/closure.c +++ b/ext/fiddle/closure.c @@ -228,7 +228,10 @@ initialize(int rbargc, VALUE argv[], VALUE self) #else result = ffi_prep_closure(pcl, cif, callback, (void *)self); cl->code = (void *)pcl; - mprotect(pcl, sizeof(pcl), PROT_READ | PROT_EXEC); + i = mprotect(pcl, sizeof(pcl), PROT_READ | PROT_EXEC); + if (i) { + rb_sys_fail("mprotect"); + } #endif if (FFI_OK != result) |