Re: [PATCH bpf-next v4 00/20] Add return value range check for BPF LSM

Paul Moore
2024-07-12T16:00:22Z

On Fri, Jul 12, 2024 at 11:56 AM Paul Moore <paul@paul-moore.com> wrote:
> On Thu, Jul 11, 2024 at 7:13 AM Xu Kuohai <xukuohai@huaweicloud.com> wrote:
> >
> > From: Xu Kuohai <xukuohai@huawei.com>
> >
> > LSM BPF prog returning a positive number attached to the hook
> > file_alloc_security makes kernel panic.
>
> ...
>
> > Xu Kuohai (20):
> > lsm: Refactor return value of LSM hook vm_enough_memory
> > lsm: Refactor return value of LSM hook inode_need_killpriv
> > lsm: Refactor return value of LSM hook inode_getsecurity
> > lsm: Refactor return value of LSM hook inode_listsecurity
> > lsm: Refactor return value of LSM hook inode_copy_up_xattr
> > lsm: Refactor return value of LSM hook getselfattr
> > lsm: Refactor return value of LSM hook setprocattr
> > lsm: Refactor return value of LSM hook getprocattr
> > lsm: Refactor return value of LSM hook key_getsecurity
> > lsm: Refactor return value of LSM hook audit_rule_match
> > bpf, lsm: Add disabled BPF LSM hook list
> > bpf, lsm: Enable BPF LSM prog to read/write return value parameters
> > bpf, lsm: Add check for BPF LSM return value
> > bpf: Prevent tail call between progs attached to different hooks
> > bpf: Fix compare error in function retval_range_within
> > bpf: Add a special case for bitwise AND on range [-1, 0]
> > selftests/bpf: Avoid load failure for token_lsm.c
> > selftests/bpf: Add return value checks for failed tests
> > selftests/bpf: Add test for lsm tail call
> > selftests/bpf: Add verifier tests for bpf lsm
>
> I'm not quite sure what happened, but it looks like patches 13/20
> through 20/20 did not hit the mailing lists, see lore link below; did
> you have any mail failures when sending the patchset? Regardless, can
> you sort this out and resend the patchset?
>
> https://lore.kernel.org/all/20240711111908.3817636-1-xukuohai@huaweicloud.com

Oh wait, it looks like the patchset was split in lore somehow,
nevermind. The "missing" patches are here:

https://lore.kernel.org/all/20240711113828.3818398-1-xukuohai@huaweicloud.com

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