diff options
| -rw-r--r-- | pkg/sentry/syscalls/linux/sys_mount.go | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/pkg/sentry/syscalls/linux/sys_mount.go b/pkg/sentry/syscalls/linux/sys_mount.go index 9080a10c3..8c13e2d82 100644 --- a/pkg/sentry/syscalls/linux/sys_mount.go +++ b/pkg/sentry/syscalls/linux/sys_mount.go @@ -109,9 +109,17 @@ func Mount(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.Syscall return 0, nil, syserror.EINVAL } - return 0, nil, fileOpOn(t, linux.AT_FDCWD, targetPath, true /* resolve */, func(root *fs.Dirent, d *fs.Dirent, _ uint) error { + if err := fileOpOn(t, linux.AT_FDCWD, targetPath, true /* resolve */, func(root *fs.Dirent, d *fs.Dirent, _ uint) error { + // Mount will take a reference on rootInode if successful. return t.MountNamespace().Mount(t, d, rootInode) - }) + }); err != nil { + // Something went wrong. Drop our ref on rootInode before + // returning the error. + rootInode.DecRef() + return 0, nil, err + } + + return 0, nil, nil } // Umount2 implements Linux syscall umount2(2). |