[webkit-changes] [WebKit/WebKit] 43c46e: Block syscall related to signal handling

Per Arne Vollan noreply at github.com
Wed Oct 12 18:35:05 PDT 2022


  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 43c46e90c40092e5bcc033ef8be07be56f3401c1
      https://github.com/WebKit/WebKit/commit/43c46e90c40092e5bcc033ef8be07be56f3401c1
  Author: Per Arne Vollan <pvollan at apple.com>
  Date:   2022-10-12 (Wed, 12 Oct 2022)

  Changed paths:
    M Source/WTF/wtf/spi/darwin/SandboxSPI.h
    M Source/WebCore/testing/Internals.cpp
    M Source/WebCore/testing/Internals.h
    M Source/WebCore/testing/Internals.idl
    M Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.WebContent.sb.in
    M Source/WebKit/WebProcess/com.apple.WebProcess.sb.in
    M Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
    A Tools/TestWebKitAPI/Tests/WebKit/SyscallUnixSandboxCheck.mm

  Log Message:
  -----------
  Block syscall related to signal handling
https://bugs.webkit.org/show_bug.cgi?id=246020
<rdar://100604972>

Reviewed by Youenn Fablet.

The syscall SYS_sigreturn was unblocked in <https://commits.webkit.org/255036@main>, but it turns out
it is sufficient to block it without the default process termination behavior.

Test: WebKit.SyscallUnixSandboxCheck

* Source/WTF/wtf/spi/darwin/SandboxSPI.h:
* Source/WebCore/testing/Internals.cpp:
(WebCore::Internals::hasSandboxMachLookupAccessToXPCServiceName):
(WebCore::Internals::hasSandboxUnixSyscallAccess):
* Source/WebCore/testing/Internals.cpp.orig: Copied from Source/WebCore/testing/Internals.cpp.
* Source/WebCore/testing/Internals.h:
* Source/WebCore/testing/Internals.idl:
* Source/WebKit/Resources/SandboxProfiles/ios/com.apple.WebKit.WebContent.sb.in:
* Source/WebKit/WebProcess/com.apple.WebProcess.sb.in:
* Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj:
* Tools/TestWebKitAPI/Tests/WebKit/SyscallUnixSandboxCheck.mm: Added.
(TEST):

Canonical link: https://commits.webkit.org/255462@main




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