]> www.infradead.org Git - users/dwmw2/linux.git/commit
Merge branch 'add-bpf-lsm-return-value-range-check-bpf-part'
authorAlexei Starovoitov <ast@kernel.org>
Tue, 23 Jul 2024 00:33:28 +0000 (17:33 -0700)
committerAndrii Nakryiko <andrii@kernel.org>
Mon, 29 Jul 2024 20:09:48 +0000 (13:09 -0700)
commit02d9fe1c4d987c4b3d272b5217da53280ffa71f5
tree1382ba050fce1d691687f8084a9615524fe2ae51
parente2854bc37344f40a47c6e04a222e65d2669e64dd
parent04d8243b1f83251bd599fdd3ea91e89039b6a557
Merge branch 'add-bpf-lsm-return-value-range-check-bpf-part'

Xu Kuohai says:

====================
Add BPF LSM return value range check, BPF part

From: Xu Kuohai <xukuohai@huawei.com>

LSM BPF prog may make kernel panic when returning an unexpected value,
such as returning positive value on hook file_alloc_security.

To fix it, series [1] refactored LSM hook return values and added
BPF return value check on top of that. Since the refactoring of LSM
hooks and checking BPF prog return value patches is not closely related,
this series separates BPF-related patches from [1].

v2:
- Update Shung-Hsi's patch with [3]

v1: https://lore.kernel.org/bpf/20240719081749.769748-1-xukuohai@huaweicloud.com/

Changes to [1]:

1. Extend LSM disabled list to include hooks refactored in [1] to avoid
   dependency on the hooks return value refactoring patches.

2. Replace the special case patch for bitwise AND on [-1, 0] with Shung-Hsi's
   general bitwise AND improvement patch [2].

3. Remove unused patches.

[1] https://lore.kernel.org/bpf/20240711111908.3817636-1-xukuohai@huaweicloud.com
    https://lore.kernel.org/bpf/20240711113828.3818398-1-xukuohai@huaweicloud.com

[2] https://lore.kernel.org/bpf/ykuhustu7vt2ilwhl32kj655xfdgdlm2xkl5rff6tw2ycksovp@ss2n4gpjysnw

[3] https://lore.kernel.org/bpf/20240719081702.137173-1-shung-hsi.yu@suse.com/

Shung-Hsi Yu (1):
  bpf, verifier: improve signed ranges inference for BPF_AND
====================

Link: https://lore.kernel.org/r/20240719110059.797546-1-xukuohai@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>