kernel BUG at kernel/cred.c:434!

Oleg Nesterov oleg at
Wed Apr 17 14:57:11 UTC 2019

On 04/17, Paul Moore wrote:
> I'm tempted to simply return an error in selinux_setprocattr() if
> the task's credentials are not the same as its real_cred;

What about other modules? I have no idea what smack_setprocattr() is,
but it too does prepare_creds/commit creds.

it seems that the simplest workaround should simply add the additional
cred == real_cred into proc_pid_attr_write().


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