diff options
| author |   Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-01-30 22:23:26 -0500 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2016-02-21 09:06:09 -0500 |
| commit | 39eeb4fb97f60dbdfc823c1a673a8844b9226b60 (patch) | |
| tree | 46e37e2211017237abd363a0dd1b3737da741ed0 /fs | |
| parent | firmware: replace call to fw_read_file_contents() with kernel version (diff) | |
| download | linux-dev-39eeb4fb97f60dbdfc823c1a673a8844b9226b60.tar.xz linux-dev-39eeb4fb97f60dbdfc823c1a673a8844b9226b60.zip | |
security: define kernel_read_file hook
The kernel_read_file security hook is called prior to reading the file
into memory.
Changelog v4+:
- export security_kernel_read_file()
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Luis R. Rodriguez <mcgrof@kernel.org>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/exec.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/exec.c b/fs/exec.c index 64cb3bc788c1..8aaa38666119 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -842,6 +842,10 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size, if (!S_ISREG(file_inode(file)->i_mode) || max_size < 0) return -EINVAL; + ret = security_kernel_read_file(file, id); + if (ret) + return ret; + i_size = i_size_read(file_inode(file)); if (max_size > 0 && i_size > max_size) return -EFBIG; |