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([2620:10d:c090:500::6:420a]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b6099f3b041sm177268a12.24.2025.10.01.11.37.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Oct 2025 11:37:27 -0700 (PDT) Message-ID: <5ddd7fb4f2282fe697f1e7617206424b828d269c.camel@gmail.com> Subject: Re: [PATCH v3 2/2] selftests/bpf: Add test for BPF_NEG alu on CONST_PTR_TO_MAP From: Eduard Zingerman To: Brahmajit Das , syzbot+d36d5ae81e1b0a53ef58@syzkaller.appspotmail.com Cc: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, haoluo@google.com, john.fastabend@gmail.com, jolsa@kernel.org, kpsingh@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, sdf@fomichev.me, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev, kafai.wan@linux.dev Date: Wed, 01 Oct 2025 11:37:25 -0700 In-Reply-To: <20251001095613.267475-3-listout@listout.xyz> References: <68d26227.a70a0220.1b52b.02a4.GAE@google.com> <20251001095613.267475-1-listout@listout.xyz> <20251001095613.267475-3-listout@listout.xyz> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 (3.56.2-1.fc42) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Wed, 2025-10-01 at 15:26 +0530, Brahmajit Das wrote: > From: KaFai Wan >=20 > Add a test case for BPF_NEG operation on CONST_PTR_TO_MAP. Tests if > BPF_NEG operation on map_ptr is rejected in unprivileged mode and is a > scalar value and do not trigger Oops in privileged mode. >=20 > Signed-off-by: KaFai Wan > --- Can confirm, the test reproduces original issue, patch #1 fixes it. Acked-by: Eduard Zingerman [...]