On Thu, Aug 14, 2025 at 03:53:14PM +0200, Paul Chaignon wrote: > On Wed, Aug 13, 2025 at 03:38:32PM +0200, Jiri Olsa wrote: > > From: Jiri Olsa <olsajiri@xxxxxxxxx> > > > > syzbot reported an verifier bug [1] where the helper func pointer > > could be NULL due to disabled config option. > > > > As Alexei suggested we could check on that in get_helper_proto > > directly. Excluding tail_call helper from the check, because it > > is NULL by design and valid in all configs. > > > > [1] https://lore.kernel.org/bpf/68904050.050a0220.7f033.0001.GAE@xxxxxxxxxx/ > > Reported-by: syzbot+a9ed3d9132939852d0df@xxxxxxxxxxxxxxxxxxxxxxxxx > > The same bug was reported before by the kernel test robot at > https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@xxxxxxxxx, so > I guess we'll need: > > Reported-by: kernel test robot <oliver.sang@xxxxxxxxx> > Closes: https://lore.kernel.org/oe-lkp/202507160818.68358831-lkp@xxxxxxxxx > > With that, > > Acked-by: Paul Chaignon <paul.chaignon@xxxxxxxxx> thanks, will fix jirka
