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[192.26.29.3]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a59e00108asm6828537a12.2.2026.08.23.12.32.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Aug 2026 12:32:03 -0700 (PDT) From: Kumar Kartikeya Dwivedi To: bpf@vger.kernel.org Cc: Alexei Starovoitov , Andrii Nakryiko , Daniel Borkmann , Eduard Zingerman , Emil Tsalapatis , kkd@meta.com, kernel-team@meta.com Subject: [PATCH bpf-next v1 0/2] Reject oversized stream read buffers Date: Sun, 23 Aug 2026 21:31:59 +0200 Message-ID: <20260823193202.2389715-1-memxor@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=598; i=memxor@gmail.com; h=from:subject; bh=2BQAiSVASeRR/GtF62fvSoiAMeWZ8Y1x3Ksk+zYYOjc=; b=owGbwMvMwCXmrmtenRyi38x4Wi2JIavba370DNMbWRsnVcRzb7w0e8qm6r9rW04msqz0Ppr9u absjsm6jlIWBjEuBlkxRZaS//uYjE9U/g60XcYNM4eVCWQIAxenAEzEyonhr1SIwU+1uoVlzyXm Kd8TYEncyr7dPmQR04RnOQvjp4QXFzAyTHpisYFhU7CF/ZSubKambt0jBnJixX4mKRmrTmZc0lF mBwA= X-Developer-Key: i=memxor@gmail.com; a=openpgp; fpr=B34BD741DE8494B76E2F717880EF20021D46C59B Content-Transfer-Encoding: 8bit Reject stream read lengths above INT_MAX before they reach the signed internal reader, and add regression coverage for the error path. See commit logs for details. Kumar Kartikeya Dwivedi (2): bpf: Reject oversized stream read buffers selftests/bpf: Cover oversized stream read buffers include/linux/bpf.h | 2 +- kernel/bpf/stream.c | 4 +++- tools/testing/selftests/bpf/prog_tests/stream.c | 4 ++++ 3 files changed, 8 insertions(+), 2 deletions(-) base-commit: a284ed47ec1fd4aa63d2318d87f457cc421a93b5 -- 2.53.0