On Sun, Apr 13, 2014 at 12:51:56AM -0700, Eric W. Biederman wrote:
> btrfs_init_test_fs, and of course I was silly when I thought the module
> ref count would be useful for something before init_module succeeds.
>
> Still I suspect I was on the right track. We do have the get_fs_type,
> get_file
ebied...@xmission.com (Eric W. Biederman) writes:
> Al Viro writes:
>
>> On Sat, Apr 12, 2014 at 03:15:39PM -0700, Eric W. Biederman wrote:
>>
>>> Can you explain which scenario you are thinking about with respect to a
>>> failed modprobe?
>>
>> Again, it's not impossible to audit (there's not a
Al Viro writes:
> On Sat, Apr 12, 2014 at 03:15:39PM -0700, Eric W. Biederman wrote:
>
>> Can you explain which scenario you are thinking about with respect to a
>> failed modprobe?
>
> Completely made up example:
>
> static struct file_system_type foofs = {
> .mount = mount_foo,
> .k
On Sun, Apr 13, 2014 at 06:39:56AM +0100, Al Viro wrote:
> type = get_fs_type("proc");
> ns = kmalloc(...);
> /* fill *ns */
> mnt = kern_mount_data(type, p);
s/p/ns/
> ...
> if (error) {
> kern_unmount(mnt);
> kfree(p);
ditto.
>
On Sat, Apr 12, 2014 at 03:15:39PM -0700, Eric W. Biederman wrote:
> Can you explain which scenario you are thinking about with respect to a
> failed modprobe?
Completely made up example:
static struct file_system_type foofs = {
.mount = mount_foo,
.kill_sb = kill_foo,
};
static
Al Viro writes:
> On Wed, Apr 09, 2014 at 03:58:25PM -0700, Eric W. Biederman wrote:
>>
>> mntput as part of pathput is called from all over the vfs sometimes as
>> in the case of symlink chasing from some rather deep call chains.
>> During filesystem unmount with the right set of races those in
Al Viro writes:
> On Wed, Apr 09, 2014 at 03:58:25PM -0700, Eric W. Biederman wrote:
>>
>> mntput as part of pathput is called from all over the vfs sometimes as
>> in the case of symlink chasing from some rather deep call chains.
>> During filesystem unmount with the right set of races those in
On Wed, Apr 09, 2014 at 03:58:25PM -0700, Eric W. Biederman wrote:
>
> mntput as part of pathput is called from all over the vfs sometimes as
> in the case of symlink chasing from some rather deep call chains.
> During filesystem unmount with the right set of races those innocuous
> little mntput
mntput as part of pathput is called from all over the vfs sometimes as
in the case of symlink chasing from some rather deep call chains.
During filesystem unmount with the right set of races those innocuous
little mntput calls that take very little stack space can become calls
become mosters calli
9 matches
Mail list logo
