On 2026-08-20 17:28:25 [+0200], Petr Mladek wrote: > On Fri 2026-08-14 12:56:47, Andrew Morton wrote: > > On Fri, 14 Aug 2026 16:48:52 +0200 Sebastian Andrzej Siewior > > <[email protected]> wrote: > > > > > It is possible to leak pointers via %ps without KALLSYMS enabled. > > > With KALLSYMS pointers can be leaked if they can not be resolved. > > > > > > The tiny series has two patches, one for each issue. > > > > > > > Thanks. > > > > fwiw, Sashiko flagged a few possible issues: > > > > https://sashiko.dev/#/patchset/[email protected] > > Sashiko basically complains about that this might make > dump_stack(), panics, and oopses useless on systems without KALLSYMS > which is typical on embedded systems. > > IMHO, it is a good point. What about using default_pointer() resp. %p > as the fallback? It would allow to see the pointers with > "no_hash_pointers" kernel parameter.
I didn't repost it yet. But this is what I did locally. #1 takes no_hash_pointers into consideration and #2 is just a comment _why_ we "leak" the actual pointer. > Best Regards, > Petr Sebastian
