diff options
Diffstat (limited to 'mm/memfd.c')
| -rw-r--r-- | mm/memfd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/memfd.c b/mm/memfd.c index bc214390e28d..a0a7a37e8177 100644 --- a/mm/memfd.c +++ b/mm/memfd.c @@ -222,6 +222,12 @@ static int memfd_add_seals(struct file *file, unsigned int seals) } } + /* + * SEAL_EXEC implys SEAL_WRITE, making W^X from the start. + */ + if (seals & F_SEAL_EXEC && inode->i_mode & 0111) + seals |= F_SEAL_SHRINK|F_SEAL_GROW|F_SEAL_WRITE|F_SEAL_FUTURE_WRITE; + *file_seals |= seals; error = 0; |