diff options
Diffstat (limited to 'fs/read_write.c')
| -rw-r--r-- | fs/read_write.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index 563abd09b5c..a091ee4f430 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -188,7 +188,7 @@ int rw_verify_area(int read_write, struct file *file, loff_t *ppos, size_t count struct inode *inode; loff_t pos; - if (unlikely(count > file->f_maxcount)) + if (unlikely(count > INT_MAX)) goto Einval; pos = *ppos; if (unlikely((pos < 0) || (loff_t) (pos + count) < 0)) @@ -499,6 +499,9 @@ static ssize_t do_readv_writev(int type, struct file *file, ret = rw_verify_area(type, file, pos, tot_len); if (ret) goto out; + ret = security_file_permission(file, type == READ ? MAY_READ : MAY_WRITE); + if (ret) + goto out; fnv = NULL; if (type == READ) { |