238630 2022-03-31 13:35:59 -0700 [Bugzilla] Code reviews show non-ASCII characters in patches as garbage 2022-04-01 10:50:49 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=75394 https://bugs.webkit.org/show_bug.cgi?id=45760 InRadar P2 Normal --- 1 mmaxfield mmaxfield ap darin mitz webkit-bug-importer wilander oldest_to_newest 1856944 0 mmaxfield 2022-03-31 13:35:59 -0700 [Bugzilla] Code reviews show non-ASCII characters in patches as garbage 1856946 1 456274 mmaxfield 2022-03-31 13:37:48 -0700 Created attachment 456274 Patch 1856947 2 456275 mmaxfield 2022-03-31 13:38:18 -0700 Created attachment 456275 Patch 1856951 3 mmaxfield 2022-03-31 13:43:20 -0700 Committed r292170 (249077@trunk): <https://commits.webkit.org/249077@trunk> 1856952 4 webkit-bug-importer 2022-03-31 13:44:16 -0700 <rdar://problem/91123203> 1856959 5 mitz 2022-03-31 14:01:42 -0700 Is this a duplicate of bug 75394? 1857107 6 ap 2022-03-31 19:42:21 -0700 I just realized that there is a downside to this change. Now our review page no longer serves as a defense against attacks like https://trojansource.codes. This seems fairly serious, perhaps we should undo it? 1857136 7 mmaxfield 2022-03-31 21:26:31 -0700 If we (the WebKit team) decide that we do need to take additional actions here (a conclusion which I don’t think is foregone), the action shouldn’t be to revert this patch thereby relying on accidental behavior. If we want to show certain characters as visible, we should do so by intentionally writing code to do it. If we do want a mitigation, we can surely find a middle ground where some Unicode characters are replaced but others aren’t. 1857141 8 mmaxfield 2022-03-31 21:31:25 -0700 (In reply to mitz from comment #5) > Is this a duplicate of bug 75394? It looks to me like “yes” but if that bug is still reproducing then maybe not? 1857151 9 ap 2022-03-31 21:54:35 -0700 It doesn't seem worth the effort to develop any non-trivial mitigations, as pretty soon patch review will be on GitHub. But while it's here, it seems not great to create security risk. 1857302 10 mmaxfield 2022-04-01 10:28:08 -0700 *** Bug 75394 has been marked as a duplicate of this bug. *** 1857312 11 mmaxfield 2022-04-01 10:48:20 -0700 Does GitHub code review have mitigations for Trojan Source? 1857314 12 mmaxfield 2022-04-01 10:50:49 -0700 Looks like GitHub displays a message, e.g https://github.com/nickboucher/trojan-source/blob/eaca01d01bfd588d805fbc711c39a1b3679ac484/Python/commenting-out.py 456274 2022-03-31 13:37:48 -0700 2022-03-31 13:38:16 -0700 Patch bug-238630-20220331133748.patch text/plain 1480 mmaxfield U3VidmVyc2lvbiBSZXZpc2lvbjogMjkyMTY4CmRpZmYgLS1naXQgYS9XZWJzaXRlcy9idWdzLndl YmtpdC5vcmcvQ2hhbmdlTG9nIGIvV2Vic2l0ZXMvYnVncy53ZWJraXQub3JnL0NoYW5nZUxvZwpp bmRleCA1MjVkMzI4MmU2ZjBmNDkyYzc5MjgzNjliMGI0ODcyNDZjYzA5YTljLi5jZDE2NDAzN2Vi ODNhMjYxZjUwOWU1ZDAwZTdkODY2MTYwMWQzMWIyIDEwMDY0NAotLS0gYS9XZWJzaXRlcy9idWdz LndlYmtpdC5vcmcvQ2hhbmdlTG9nCisrKyBiL1dlYnNpdGVzL2J1Z3Mud2Via2l0Lm9yZy9DaGFu Z2VMb2cKQEAgLTEsMyArMSwxOCBAQAorMjAyMi0wMy0zMSAgTXlsZXMgQy4gTWF4ZmllbGQgIDxt bWF4ZmllbGRAYXBwbGUuY29tPgorCisgICAgICAgIFtCdWd6aWxsYV0gQ29kZSByZXZpZXdzIHNo b3cgbm9uLUFTQ0lJIGNoYXJhY3RlcnMgaW4gcGF0Y2hlcyBhcyBnYXJiYWdlCisgICAgICAgIGh0 dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMzg2MzAKKworICAgICAgICBS ZXZpZXdlZCBieSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBXZSBoYXZlIGEgY29udmVudGlv biB0aGF0IG91ciBzb3VyY2VzIChhbmQgdGhlcmVmb3JlIG91ciBwYXRjaGVzKSBpbiBXZWJLaXQg YXJlIFVURi04LgorICAgICAgICBUaGUgb3V0cHV0IG9mIHByZXR0aWZ5LnJiIGlzIGFsc28gVVRG LTguIFNvLCB3ZSBqdXN0IG5lZWQgdG8gdGVsbCBQZXJsIHRoYXQsIHdoZW4gaXQKKyAgICAgICAg cmVhZHMgdGhlIG91dHB1dCBvZiBwcmV0dGlmeS5yYiwgaXQganVzdCBuZWVkcyB0byB1bmRlcnN0 YW5kIHRoYXQgdGhlIGRhdGEgaXQncyByZWFkaW5nCisgICAgICAgIGlzIFVURi04LgorCisgICAg ICAgICogYXR0YWNobWVudC5jZ2k6CisgICAgICAgIChwcmV0dHlQYXRjaCk6CisKIDIwMjEtMDkt MDIgIEpvbmF0aGFuIEJlZGFyZCAgPGpiZWRhcmRAYXBwbGUuY29tPgogCiAgICAgICAgIFtjb250 cmlidXRvcnMuanNvbl0gUmVsb2NhdGlvbiAoUGFydCA0KQpkaWZmIC0tZ2l0IGEvV2Vic2l0ZXMv YnVncy53ZWJraXQub3JnL2F0dGFjaG1lbnQuY2dpIGIvV2Vic2l0ZXMvYnVncy53ZWJraXQub3Jn L2F0dGFjaG1lbnQuY2dpCmluZGV4IGM0YWRhNGQzNWU4ZjQ1ZTcwZDc0YzNlYTg5ZmUzYzcwY2E5 MjdmMzEuLjkxY2E4MmRiMDUxMTExY2ExZmZlMTU1OTQyODI2NDIyYjgyZGU5Y2EgMTAwNzU1Ci0t LSBhL1dlYnNpdGVzL2J1Z3Mud2Via2l0Lm9yZy9hdHRhY2htZW50LmNnaQorKysgYi9XZWJzaXRl cy9idWdzLndlYmtpdC5vcmcvYXR0YWNobWVudC5jZ2kKQEAgLTQzMCw2ICs0MzAsNyBAQCBzdWIg cHJldHR5UGF0Y2gKICAgICAkRU5WeydQQVRIJ30gPSAkb3JpZ19wYXRoOwogICAgIHByaW50ICRp biAkYXR0YWNobWVudC0+ZGF0YTsKICAgICBjbG9zZSgkaW4pOworICAgIGJpbm1vZGUoJG91dCwg Jzp1dGY4Jyk7CiAgICAgd2hpbGUgKDwkb3V0PikgewogICAgICAgICBwcmludDsKICAgICB9Cg== 456275 2022-03-31 13:38:18 -0700 2022-03-31 13:41:00 -0700 Patch bug-238630-20220331133818.patch text/plain 1477 mmaxfield U3VidmVyc2lvbiBSZXZpc2lvbjogMjkyMTY4CmRpZmYgLS1naXQgYS9XZWJzaXRlcy9idWdzLndl YmtpdC5vcmcvQ2hhbmdlTG9nIGIvV2Vic2l0ZXMvYnVncy53ZWJraXQub3JnL0NoYW5nZUxvZwpp bmRleCA1MjVkMzI4MmU2ZjBmNDkyYzc5MjgzNjliMGI0ODcyNDZjYzA5YTljLi5lMDk1ZjQxMmY1 OTg5MGFjYmZiNjYyNmI4YmY4ZGE5NzQwMzdmY2I2IDEwMDY0NAotLS0gYS9XZWJzaXRlcy9idWdz LndlYmtpdC5vcmcvQ2hhbmdlTG9nCisrKyBiL1dlYnNpdGVzL2J1Z3Mud2Via2l0Lm9yZy9DaGFu Z2VMb2cKQEAgLTEsMyArMSwxOCBAQAorMjAyMi0wMy0zMSAgTXlsZXMgQy4gTWF4ZmllbGQgIDxt bWF4ZmllbGRAYXBwbGUuY29tPgorCisgICAgICAgIFtCdWd6aWxsYV0gQ29kZSByZXZpZXdzIHNo b3cgbm9uLUFTQ0lJIGNoYXJhY3RlcnMgaW4gcGF0Y2hlcyBhcyBnYXJiYWdlCisgICAgICAgIGh0 dHBzOi8vYnVncy53ZWJraXQub3JnL3Nob3dfYnVnLmNnaT9pZD0yMzg2MzAKKworICAgICAgICBS ZXZpZXdlZCBieSBBYWthc2ggSmFpbi4KKworICAgICAgICBXZSBoYXZlIGEgY29udmVudGlvbiB0 aGF0IG91ciBzb3VyY2VzIChhbmQgdGhlcmVmb3JlIG91ciBwYXRjaGVzKSBpbiBXZWJLaXQgYXJl IFVURi04LgorICAgICAgICBUaGUgb3V0cHV0IG9mIHByZXR0aWZ5LnJiIGlzIGFsc28gVVRGLTgu IFNvLCB3ZSBqdXN0IG5lZWQgdG8gdGVsbCBQZXJsIHRoYXQsIHdoZW4gaXQKKyAgICAgICAgcmVh ZHMgdGhlIG91dHB1dCBvZiBwcmV0dGlmeS5yYiwgaXQganVzdCBuZWVkcyB0byB1bmRlcnN0YW5k IHRoYXQgdGhlIGRhdGEgaXQncyByZWFkaW5nCisgICAgICAgIGlzIFVURi04LgorCisgICAgICAg ICogYXR0YWNobWVudC5jZ2k6CisgICAgICAgIChwcmV0dHlQYXRjaCk6CisKIDIwMjEtMDktMDIg IEpvbmF0aGFuIEJlZGFyZCAgPGpiZWRhcmRAYXBwbGUuY29tPgogCiAgICAgICAgIFtjb250cmli dXRvcnMuanNvbl0gUmVsb2NhdGlvbiAoUGFydCA0KQpkaWZmIC0tZ2l0IGEvV2Vic2l0ZXMvYnVn cy53ZWJraXQub3JnL2F0dGFjaG1lbnQuY2dpIGIvV2Vic2l0ZXMvYnVncy53ZWJraXQub3JnL2F0 dGFjaG1lbnQuY2dpCmluZGV4IGM0YWRhNGQzNWU4ZjQ1ZTcwZDc0YzNlYTg5ZmUzYzcwY2E5Mjdm MzEuLjkxY2E4MmRiMDUxMTExY2ExZmZlMTU1OTQyODI2NDIyYjgyZGU5Y2EgMTAwNzU1Ci0tLSBh L1dlYnNpdGVzL2J1Z3Mud2Via2l0Lm9yZy9hdHRhY2htZW50LmNnaQorKysgYi9XZWJzaXRlcy9i dWdzLndlYmtpdC5vcmcvYXR0YWNobWVudC5jZ2kKQEAgLTQzMCw2ICs0MzAsNyBAQCBzdWIgcHJl dHR5UGF0Y2gKICAgICAkRU5WeydQQVRIJ30gPSAkb3JpZ19wYXRoOwogICAgIHByaW50ICRpbiAk YXR0YWNobWVudC0+ZGF0YTsKICAgICBjbG9zZSgkaW4pOworICAgIGJpbm1vZGUoJG91dCwgJzp1 dGY4Jyk7CiAgICAgd2hpbGUgKDwkb3V0PikgewogICAgICAgICBwcmludDsKICAgICB9Cg==