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crypto: change segmentation faults to CHECKs #14548

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crypto: change segmentation faults to CHECKs #14548

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tniessen
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Fixes: #14519

I intentionally did not fix this in cares_wrap.cc as @addaleax already did that in #14518 (assuming it gets merged).

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)

crypto

@tniessen tniessen added c++ Issues and PRs that require attention from people who are familiar with C++. crypto Issues and PRs related to the crypto subsystem. labels Jul 30, 2017
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. crypto Issues and PRs related to the crypto subsystem. labels Jul 30, 2017
@tniessen
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CI: https://ci.nodejs.org/job/node-test-pull-request/9411/

@tniessen tniessen self-assigned this Jul 30, 2017
addaleax
addaleax reviewed Jul 30, 2017
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src/node_crypto.cc Outdated
@@ -5673,7 +5679,8 @@ void RandomBytesBuffer(const FunctionCallbackInfo<Value>& args) {
if (env->in_domain()) {
obj->Set(env->context(),
env->domain_string(),
env->domain_array()->Get(0)).FromJust();
env->domain_array()->Get(env->context(), 0).ToLocalChecked())
.FromJust();
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actually, indentation nit: 4 spaces ;)

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Thanks, done :)

TimothyGu
TimothyGu reviewed Jul 31, 2017
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src/node_crypto.cc Outdated
obj->Set(env->domain_string(), env->domain_array()->Get(0));
if (env->in_domain()) {
obj->Set(env->domain_string(),
env->domain_array()->Get(env->context(), 0).ToLocalChecked());
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Any reason not to call .FromJust() here and below as well (à la RandomBytesBuffer())?

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I added checks to the result of Set() :)

@tniessen
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New CI: https://ci.nodejs.org/job/node-test-pull-request/9418/

@jasnell
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jasnell commented Jul 31, 2017

This could likely benefit from a test.

tniessen added a commit that referenced this pull request Aug 2, 2017
@tniessen
crypto: change segmentation faults to CHECKs
1c36243 
PR-URL: #14548
Fixes: #14519
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Timothy Gu <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
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tniessen commented Aug 2, 2017

Landed in 1c36243.

This could likely benefit from a test.

@jasnell I considered adding one, but I was unable to cause a segmentation fault from JavaScript without using an undocumented internal API (process._setupDomainUse) in a very hackish way, and I didn't think it was a good idea to write a test revolving around that.

CI on master: https://ci.nodejs.org/job/node-test-commit-linuxone/7699/

@tniessen tniessen closed this Aug 2, 2017
addaleax pushed a commit that referenced this pull request Aug 2, 2017
@tniessen @addaleax
crypto: change segmentation faults to CHECKs
51c1afa 
PR-URL: #14548
Fixes: #14519
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: James M Snell <[email protected]>
Reviewed-By: Timothy Gu <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
@addaleax addaleax mentioned this pull request Aug 2, 2017
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@MylesBorins
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This does not land cleanly in LTS. Please feel free to manually backport by following the guide. Please also feel free to replace do-not-land if it is being backported

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@addaleax addaleax addaleax approved these changes

@cjihrig cjihrig cjihrig approved these changes

@TimothyGu TimothyGu TimothyGu approved these changes

@jasnell jasnell jasnell approved these changes

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@tniessen tniessen

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Internal domain function can be used to cause segfaults
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@tniessen @jasnell @MylesBorins @addaleax @TimothyGu @cjihrig @nodejs-github-bot