[C API] Add null check in BinaryenTableGrow for missing table#8376
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sumleo wants to merge 2 commits intoWebAssembly:mainfrom
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[C API] Add null check in BinaryenTableGrow for missing table#8376sumleo wants to merge 2 commits intoWebAssembly:mainfrom
sumleo wants to merge 2 commits intoWebAssembly:mainfrom
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BinaryenTableGrow has a convenience path where passing value=nullptr auto-creates a ref.null of the table's element type. However, it calls getTableOrNull(name) and immediately dereferences the result without checking for null. If the table name doesn't exist in the module, this causes a null pointer dereference. Add a null check after getTableOrNull so that if the table doesn't exist, value remains nullptr and downstream code handles the error.
kripken
reviewed
Feb 25, 2026
kripken
approved these changes
Feb 26, 2026
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The CI error here looks like a problem on main that was fixed. Merging in latest main should fix it. |
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Summary
BinaryenTableGrowwhen the table name doesn't exist in the modulevalue == nullptrcallsgetTableOrNull(name)and immediately dereferences the result without a null checkvalueremains nullptr and downstream code handles the error gracefullyTest plan
binaryen-c.cppc-api-kitchen-sinktest continues to work (it passes a non-null value so doesn't exercise this path)