kernel/mm/memfd.c
.. .. @@ -330,7 +330,8 @@ 330 330 331 331 if (flags & MFD_ALLOW_SEALING) { 332 332 file_seals = memfd_file_seals_ptr(file); 333 - *file_seals &= ~F_SEAL_SEAL;333 + if (file_seals)334 + *file_seals &= ~F_SEAL_SEAL;334 335 } 335 336 336 337 fd_install(fd, file);