Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: e6cec05c0d9bc25ac2fcbdbf65e0bb10ebf784a2
https://github.com/WebKit/WebKit/commit/e6cec05c0d9bc25ac2fcbdbf65e0bb10ebf784a2
Author: Claudio Saavedra <[email protected]>
Date: 2026-10-12 (Mon, 12 Oct 2026)
Changed paths:
A LayoutTests/http/wpt/crypto/export-rsa-key-crash.any-expected.txt
A LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.html
A LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.js
A LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.worker-expected.txt
A LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.worker.html
M Source/WebCore/crypto/gcrypt/GCryptUtilities.cpp
Log Message:
-----------
[GCrypt] Exporting an RSA key with a zero component crashes
https://bugs.webkit.org/show_bug.cgi?id=327077
Reviewed by Javier Fernandez.
mpiSignedData() reads the first byte of the MPI data to decide whether
a sign byte is needed, but the data for zero is empty, so exporting an
RSA key with, for example, a zero public exponent as SPKI or PKCS#8
crashed. Encode zero as a single zero byte, as DER requires.
Test: http/wpt/crypto/export-rsa-key-crash.any.html
* LayoutTests/http/wpt/crypto/export-rsa-key-crash.any-expected.txt: Added.
* LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.html: Added.
* LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.js: Added.
* LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.worker-expected.txt:
Added.
* LayoutTests/http/wpt/crypto/export-rsa-key-crash.any.worker.html: Added.
* Source/WebCore/crypto/gcrypt/GCryptUtilities.cpp:
(WebCore::mpiSignedData):
Canonical link: https://commits.webkit.org/323448@main
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