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author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-02-01 07:26:39 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2019-02-01 07:26:39 +0000 |
commit | 232f31ca12a94eb9f51182955285a4474f876af7 (patch) | |
tree | 7643d2e3ccdf0323633e23f45aab5707ac871dff /vm.c | |
parent | 8a098051c58446db8be3dcaea3447ce83e16df99 (diff) |
on-smash canary detection
In addition to detect dead canary, we try to detect the very moment
when we smash the stack top. Requested by k0kubun:
https://twitter.com/k0kubun/status/1085180749899194368
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66981 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm.c')
-rw-r--r-- | vm.c | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -1090,6 +1090,7 @@ invoke_iseq_block_from_c(rb_execution_context_t *ec, const struct rb_captured_bl stack_check(ec); CHECK_VM_STACK_OVERFLOW(cfp, argc); + vm_check_canary(ec, sp); cfp->sp = sp + argc; for (i=0; i<argc; i++) { sp[i] = argv[i]; |