Re: [PATCH 1/2] SELinux: Fix lsm_get_self_attr()

[Mickaël Salaün]

On Fri, Feb 23, 2024 at 08:59:34PM +0100, Mickaël Salaün wrote:
> On Fri, Feb 23, 2024 at 08:05:45PM +0100, Mickaël Salaün wrote:
> > selinux_lsm_getattr() may not initialize the value's pointer in some
> > case.  As for proc_pid_attr_read(), initialize this pointer to NULL in
> > selinux_getselfattr() to avoid an UAF in the kfree() call.
> 
> Not UAF but NULL pointer dereference (both patches)...

Well, that may be the result (as observed with the kfree() call), but
the cause is obviously an uninitialized pointer.