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import UBI webkit2gtk3-2.40.5-1.el9_3.1

This commit is contained in:
eabdullin 2023-12-11 14:29:11 +00:00
parent 346aebf698
commit 876f553c6c
2 changed files with 87 additions and 1 deletions
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80
SOURCES/CVE-2023-42917.patch Normal file
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@ -0,0 +1,80 @@
From 00352dd86bfa102b6e4b792120e3ef3498a27d1e Mon Sep 17 00:00:00 2001
From: Russell Epstein <repstein@apple.com>
Date: Fri, 17 Nov 2023 15:48:32 -0800
Subject: [PATCH] Cherry-pick b0a755e34426.
https://bugs.webkit.org/show_bug.cgi?id=265067
Race condition between JSObject::getDirectConcurrently users and Structure::flattenDictionaryStructure
https://bugs.webkit.org/show_bug.cgi?id=265067
rdar://118548733
Reviewed by Justin Michaud and Mark Lam.
Like Array shift/unshift, flattenDictionaryStructure is the other code which can shrink butterfly for named properties (no other code does it).
Compiler threads rely on the fact that normally named property storage never shrunk. And we should catch this exceptional case by taking a cellLock
in the compiler thread. But flattenDictionaryStructure is not taking cellLock correctly.
This patch computes afterOutOfLineCapacity first to detect that whether this flattening will shrink the butterfly.
And if it is, then we take a cellLock. We do not need to take it if we do not shrink the butterfly.
* Source/JavaScriptCore/runtime/Structure.cpp:
(JSC::Structure::flattenDictionaryStructure):
Canonical link: https://commits.webkit.org/267815.577@safari-7617-branch
Canonical link: https://commits.webkit.org/265870.632@safari-7616.2.9.10-branch
---
Source/JavaScriptCore/runtime/Structure.cpp | 28 +++++++++++++++------
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/Source/JavaScriptCore/runtime/Structure.cpp b/Source/JavaScriptCore/runtime/Structure.cpp
index 2922e2478794c..9d094e2c8adc8 100644
--- a/Source/JavaScriptCore/runtime/Structure.cpp
+++ b/Source/JavaScriptCore/runtime/Structure.cpp
@@ -913,17 +913,31 @@ Structure* Structure::flattenDictionaryStructure(VM& vm, JSObject* object)
checkOffsetConsistency();
ASSERT(isDictionary());
ASSERT(object->structure() == this);
-
- GCSafeConcurrentJSLocker locker(m_lock, vm);
-
- object->setStructureIDDirectly(id().nuke());
- WTF::storeStoreFence();
+ Locker<JSCellLock> cellLocker(NoLockingNecessary);
+
+ PropertyTable* table = nullptr;
size_t beforeOutOfLineCapacity = this->outOfLineCapacity();
+ size_t afterOutOfLineCapacity = beforeOutOfLineCapacity;
if (isUncacheableDictionary()) {
- PropertyTable* table = propertyTableOrNull();
+ table = propertyTableOrNull();
ASSERT(table);
+ PropertyOffset maxOffset = invalidOffset;
+ if (unsigned propertyCount = table->size())
+ maxOffset = offsetForPropertyNumber(propertyCount - 1, m_inlineCapacity);
+ afterOutOfLineCapacity = outOfLineCapacity(maxOffset);
+ }
+ // This is the only case we shrink butterfly in this function. We should take a cell lock to protect against concurrent access to the butterfly.
+ if (beforeOutOfLineCapacity != afterOutOfLineCapacity)
+ cellLocker = Locker { object->cellLock() };
+
+ GCSafeConcurrentJSLocker locker(m_lock, vm);
+
+ object->setStructureIDDirectly(id().nuke());
+ WTF::storeStoreFence();
+
+ if (isUncacheableDictionary()) {
size_t propertyCount = table->size();
// Holds our values compacted by insertion order. This is OK since GC is deferred.
@@ -955,7 +969,7 @@ Structure* Structure::flattenDictionaryStructure(VM& vm, JSObject* object)
setDictionaryKind(NoneDictionaryKind);
setHasBeenFlattenedBefore(true);
- size_t afterOutOfLineCapacity = this->outOfLineCapacity();
+ ASSERT(this->outOfLineCapacity() == afterOutOfLineCapacity);
if (object->butterfly() && beforeOutOfLineCapacity != afterOutOfLineCapacity) {
ASSERT(beforeOutOfLineCapacity > afterOutOfLineCapacity);

8
SPECS/webkit2gtk3.spec
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@ -12,7 +12,7 @@
Name: webkit2gtk3
Version: 2.40.5
Release: 1%{?dist}
Release: 1%{?dist}.1
Summary: GTK Web content engine library
License: LGPLv2
@ -24,6 +24,8 @@ Source1: https://webkitgtk.org/releases/webkitgtk-%{version}.tar.xz.asc
# $ gpg --export --export-options export-minimal D7FCF61CF9A2DEAB31D81BD3F3D322D0EC4582C3 5AA3BC334FD7E3369E7C77B291C559DBE4C9123B > webkitgtk-keys.gpg
Source2: webkitgtk-keys.gpg
Patch: CVE-2023-42917.patch
BuildRequires: bison
BuildRequires: bubblewrap
BuildRequires: cmake
@ -291,6 +293,10 @@ export NINJA_STATUS="[%f/%t][%e] "
%{_datadir}/gir-1.0/JavaScriptCore-4.0.gir
%changelog
* Tue Dec 05 2023 Michael Catanzaro <mcatanzaro@redhat.com> - 2.40.5-1.1
- Add patch for CVE-2023-42917
Resolves: RHEL-18173
* Tue Aug 01 2023 Michael Catanzaro <mcatanzaro@redhat.com> - 2.40.5-1
- Update to 2.40.5
Related: #2176270