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cmd/gc: escape analysis bug #3545
Description
In the program below, 'i' is treated as not escaping, yet it does escape. This can
cause crashes and memory corruption.
package main
import (
"fmt"
)
type T struct {
v *int
}
func foo(ch chan *T) {
i := 42
t := T{&i}
defer func() {
ch <- &t
}()
}
func main() {
ch := make(chan *T, 2)
foo(ch)
foo(ch)
close(ch)
for t := range ch {
fmt.Printf("%v %v\n", t, *t.v)
}
}
Activity
lvdlvd commentedon Apr 18, 2012
Comment 1:
lvdlvd commentedon Apr 23, 2012
Comment 2:
This issue was closed by revision 5583060.
Status changed to Fixed.
lvdlvd commentedon Apr 25, 2012
Comment 3:
This issue was closed by revision 4318c86ac48f.
[release-branch.go1] cmd/gc: fix addresses escaping through closures …