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authorgVisor bot <gvisor-bot@google.com>2021-02-06 01:21:46 +0000
committergVisor bot <gvisor-bot@google.com>2021-02-06 01:21:46 +0000
commit0a9f4c25c0e01804828ec584d55c479c472fcd90 (patch)
tree097a450d0f2232641f73ec50009abb42bfacfa8c /pkg/sentry/fsimpl/kernfs
parentf01915a93252ed68960af68d736ed0d48d891b6c (diff)
parent09afd68326898f783927c65f86f813d815d8c16c (diff)
Merge release-20210125.0-88-g09afd6832 (automated)
Diffstat (limited to 'pkg/sentry/fsimpl/kernfs')
-rw-r--r--pkg/sentry/fsimpl/kernfs/filesystem.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/kernfs/filesystem.go b/pkg/sentry/fsimpl/kernfs/filesystem.go
index a7a553619..d6dd6bc41 100644
--- a/pkg/sentry/fsimpl/kernfs/filesystem.go
+++ b/pkg/sentry/fsimpl/kernfs/filesystem.go
@@ -668,6 +668,12 @@ func (fs *Filesystem) RenameAt(ctx context.Context, rp *vfs.ResolvingPath, oldPa
// Can we create the dst dentry?
var dst *Dentry
pc := rp.Component()
+ if pc == "." || pc == ".." {
+ if noReplace {
+ return syserror.EEXIST
+ }
+ return syserror.EBUSY
+ }
switch err := checkCreateLocked(ctx, rp.Credentials(), pc, dstDir); err {
case nil:
// Ok, continue with rename as replacement.