Re: [PATCH] printk: Remove possible overflow in user read buffer

2015-05-20 Thread Petr Mladek
On Wed 2015-05-20 12:59:48, Marcin Niesluchowski wrote: > Reading message with dict may cause user buffer overflow due to > no limits of written dict and hardcoded user read buffer size. > As limits of dict are not clear, it may be possible in extreme > use case to trigger it (e.g. by driver passin

[PATCH] printk: Remove possible overflow in user read buffer

2015-05-20 Thread Marcin Niesluchowski
Reading message with dict may cause user buffer overflow due to no limits of written dict and hardcoded user read buffer size. As limits of dict are not clear, it may be possible in extreme use case to trigger it (e.g. by driver passing some dict parameters from userland or other module logging lar