On Tue, Nov 02, 2021 at 01:22:19PM -0500, Eric W. Biederman wrote: > Kees Cook <keescook@xxxxxxxxxxxx> writes: > > > On Thu, Oct 28, 2021 at 05:06:53PM -0500, Eric W. Biederman wrote: > >> Kees Cook <keescook@xxxxxxxxxxxx> writes: > >> > >> > On Thu, Oct 28, 2021 at 12:26:26PM -0500, Eric W. Biederman wrote: > >> > >> Is it a problem that the debugger can see the signal if the process does > >> not? > > > > Right, I'm trying to understand that too. However, my neighbor just lost > > power. :| > > > > What I was in the middle of checking was what ptrace "sees" going > > through a fatal SIGSYS; my initial debugging attempts were weird. > > Kees have you regained power and had a chance to see my SA_IMMUTABLE > patch? Apologies; I got busy with other stuff, but I've tested this now. It's happy and I see the expected behaviors again. Note that I used the patch with this change: -#define SA_IMMUTABLE 0x008000000 +#define SA_IMMUTABLE 0x00800000 Tested-by: Kees Cook <keescook@xxxxxxxxxxxx> Thanks! -Kees -- Kees Cook
