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Strace: handle null paths

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PiperOrigin-RevId: 382603592
This commit is contained in:
Fabricio Voznika
2021-07-01 14:23:01 -07:00
committed by gVisor bot
parent 590b8d3e99
commit 3d4a8824f8
1 changed files with 3 additions and 0 deletions
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pkg/sentry/strace/strace.go
+3
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@@ -133,6 +133,9 @@ func dump(t *kernel.Task, addr hostarch.Addr, size uint, maximumBlobSize uint) s
}
func path(t *kernel.Task, addr hostarch.Addr) string {
if addr == 0 {
return "<null>"
}
path, err := t.CopyInString(addr, linux.PATH_MAX)
if err != nil {
return fmt.Sprintf("%#x (error decoding path: %s)", addr, err)