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| author | Stephen Smalley <sds@tycho.nsa.gov> | 2009-05-19 15:02:23 +0200 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-05-19 15:56:11 +0200 |
| commit | c5642f4bbae30122beb696e723f6da273caa570e (patch) | |
| tree | caf9da5048c6083df90d97d7612d761840fdfbcf /security/selinux | |
| parent | SELinux: move SELINUX_MAGIC into magic.h (diff) | |
| download | linux-c5642f4bbae30122beb696e723f6da273caa570e.tar.xz linux-c5642f4bbae30122beb696e723f6da273caa570e.zip | |
selinux: remove obsolete read buffer limit from sel_read_bool
On Tue, 2009-05-19 at 00:05 -0400, Eamon Walsh wrote:
> Recent versions of coreutils have bumped the read buffer size from 4K to
> 32K in several of the utilities.
>
> This means that "cat /selinux/booleans/xserver_object_manager" no longer
> works, it returns "Invalid argument" on F11. getsebool works fine.
>
> sel_read_bool has a check for "count > PAGE_SIZE" that doesn't seem to
> be present in the other read functions. Maybe it could be removed?
Yes, that check is obsoleted by the conversion of those functions to
using simple_read_from_buffer(), which will reduce count if necessary to
what is available in the buffer.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/selinux')
| -rw-r--r-- | security/selinux/selinuxfs.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c index 8d4007fbe0e9..b4fc506e7a87 100644 --- a/security/selinux/selinuxfs.c +++ b/security/selinux/selinuxfs.c @@ -803,10 +803,6 @@ static ssize_t sel_read_bool(struct file *filep, char __user *buf, goto out; } - if (count > PAGE_SIZE) { - ret = -EINVAL; - goto out; - } page = (char *)get_zeroed_page(GFP_KERNEL); if (!page) { ret = -ENOMEM; |