OSS-Fuzz issue 417866806 #790

Activity

1. antonmedv

   added

   bug

   on Sep 18, 2025
2. antonmedv

   added this to the v1.17.7 milestone on Sep 18, 2025
3. antonmedv commented on Sep 18, 2025

   

   antonmedv

   on Sep 18, 2025

   Member

   More actions

   package main
   
   import (
   	"fmt"
   
   	"github.com/expr-lang/expr"
   )
   
   func main() {
   	code := `[]
   	|filter($env)
   	|filter($env)
   	|filter($env)
   	`
   
   	program, err := expr.Compile(code)
   	if err != nil {
   		panic(err)
   	}
   
   	output, err := expr.Run(program, nil)
   	if err != nil {
   		panic(err)
   	}
   
   	fmt.Println(output)
   }
   
   
4. thevilledev commented on Dec 4, 2025

   

   thevilledev

   on Dec 4, 2025

   Contributor

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   Just confirming after manual tests that this was fixed in #864. Prior to the commit in 709b577dd81a47647b4608e8dd6610828406256e the previous code yields:

   panic: interface conversion: ast.Node is *ast.BinaryNode, not *ast.PredicateNode
   

   Now after the fix the output is:

   []
   
5. antonmedv commented on Dec 4, 2025

   

   antonmedv

   on Dec 4, 2025

   Member

   More actions

   Awesome! Thanks for checking.
6. antonmedv

   closed this as completedon Dec 4, 2025