fs/fuse: check that a task has a specified file descriptor

Reported-by: syzbot+814105309d2ae8651084@syzkaller.appspotmail.com
PiperOrigin-RevId: 350159452

1 files changed, 0 insertions, 36 deletions

diff --git a/test/syscalls/linux/mount.cc b/test/syscalls/linux/mount.cc
index d65b7d031..15b645fb7 100644
--- a/test/syscalls/linux/mount.cc
+++ b/test/syscalls/linux/mount.cc
@@ -345,42 +345,6 @@ TEST(MountTest, RenameRemoveMountPoint) {
   ASSERT_THAT(rmdir(dir.path().c_str()), SyscallFailsWithErrno(EBUSY));
 }
 
-TEST(MountTest, MountFuseFilesystemNoDevice) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN)));
-  SKIP_IF(IsRunningOnGvisor() && !IsFUSEEnabled());
-
-  auto const dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
-  // Before kernel version 4.16-rc6, FUSE mount is protected by
-  // capable(CAP_SYS_ADMIN). After this version, it uses
-  // ns_capable(CAP_SYS_ADMIN) to protect. Before the 4.16 kernel, it was not
-  // allowed to mount fuse file systems without the global CAP_SYS_ADMIN.
-  int res = mount("", dir.path().c_str(), "fuse", 0, "");
-  SKIP_IF(!IsRunningOnGvisor() && res == -1 && errno == EPERM);
-
-  EXPECT_THAT(mount("", dir.path().c_str(), "fuse", 0, ""),
-              SyscallFailsWithErrno(EINVAL));
-}
-
-TEST(MountTest, MountFuseFilesystem) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(HaveCapability(CAP_SYS_ADMIN)));
-  SKIP_IF(IsRunningOnGvisor() && !IsFUSEEnabled());
-
-  const FileDescriptor fd =
-      ASSERT_NO_ERRNO_AND_VALUE(Open("/dev/fuse", O_WRONLY));
-  std::string mopts = "fd=" + std::to_string(fd.get());
-
-  auto const dir = ASSERT_NO_ERRNO_AND_VALUE(TempPath::CreateDir());
-
-  // See comments in MountFuseFilesystemNoDevice for the reason why we skip
-  // EPERM when running on Linux.
-  int res = mount("", dir.path().c_str(), "fuse", 0, "");
-  SKIP_IF(!IsRunningOnGvisor() && res == -1 && errno == EPERM);
-
-  auto const mount =
-      ASSERT_NO_ERRNO_AND_VALUE(Mount("", dir.path(), "fuse", 0, mopts, 0));
-}
-
 }  // namespace
 
 }  // namespace testing