On Thu, Sep 26, 2024 at 06:51:46PM +0200, Christian Brauner wrote: > When we access a no-current task's pid namespace we need check that the > task hasn't been reaped in the meantime and it's pid namespace isn't > accessible anymore. > > The user namespace is fine because it is only released when the last > reference to struct task_struct is put and exit_creds() is called. > > Fixes: 5b08bd408534 ("pidfs: allow retrieval of namespace file descriptors") > CC: stable@xxxxxxxxxxxxxxx # v6.11 > Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx> Reviewed-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Thanks, Josef