diff options
| -rw-r--r-- | fs/f2fs/file.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index bddcb2cd945a..2c591fbc75a9 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2131,6 +2131,9 @@ static int f2fs_ioc_start_atomic_write(struct file *filp, bool truncate) loff_t isize; int ret; + if (!(filp->f_mode & FMODE_WRITE)) + return -EBADF; + if (!inode_owner_or_capable(idmap, inode)) return -EACCES; @@ -2239,6 +2242,9 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp) struct mnt_idmap *idmap = file_mnt_idmap(filp); int ret; + if (!(filp->f_mode & FMODE_WRITE)) + return -EBADF; + if (!inode_owner_or_capable(idmap, inode)) return -EACCES; @@ -2271,6 +2277,9 @@ static int f2fs_ioc_abort_atomic_write(struct file *filp) struct mnt_idmap *idmap = file_mnt_idmap(filp); int ret; + if (!(filp->f_mode & FMODE_WRITE)) + return -EBADF; + if (!inode_owner_or_capable(idmap, inode)) return -EACCES; |