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authorJakob Unterwurzacher2019-01-01 20:49:56 +0100
committerJakob Unterwurzacher2019-01-01 20:49:56 +0100
commitcd0ec342b9692c71c50c77caa7b9cfde27426e4d (patch)
treee5ba0c5b437178369a1c752d0966803bb0ee9edb /internal
parent77c3df48ef76aa8fa68744fec1ca19ca28fc13e3 (diff)
fusefrontend: fix fd leak in error path
Diffstat (limited to 'internal')
-rw-r--r--internal/fusefrontend/ctlsock_interface.go11
1 files changed, 5 insertions, 6 deletions
diff --git a/internal/fusefrontend/ctlsock_interface.go b/internal/fusefrontend/ctlsock_interface.go
index 92de40f..b29d150 100644
--- a/internal/fusefrontend/ctlsock_interface.go
+++ b/internal/fusefrontend/ctlsock_interface.go
@@ -67,16 +67,15 @@ func (fs *FS) decryptPathAt(dirfd int, cipherPath string) (plainPath string, err
break
}
// Descend into next directory
- oldWd := wd
wd, err = syscallcompat.Openat(wd, part, syscall.O_NOFOLLOW, 0)
if err != nil {
return "", err
}
- // Unless we are in the first iteration, where dirfd is our wd, close
- // the old working directory.
- if i > 0 {
- syscall.Close(oldWd)
- }
+ // Yes this is somewhat wasteful in terms of used file descriptors:
+ // we keep them all open until the function returns. But it is simple
+ // and reliable.
+ defer syscall.Close(wd)
}
+
return plainPath, nil
}