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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1781181439; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YYHg5dkLLTur5IAmFlDfUGRLb6K3EKX9VBpaTCIihkU=; b=lZj32ePOnIe61cEiX71wq5QJaaiIJUG4Ri/naMj9N5/IWHFQyjNNAjZ1s+nWJP9xyuV/3A T0MhotjaoV31MmhwDsuhbPrhEtBIVkQrnOuG/+LfH32nUErO3IL9As3scKofyMPbjqrrDy mAfHn1nJc16IJQk1d2ZrwHeIRiJ0Qc8= From: Jiayuan Chen To: bpf@vger.kernel.org Cc: Jiayuan Chen , Daniel Borkmann , John Fastabend , Stanislav Fomichev , Martin KaFai Lau , Alexei Starovoitov , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jakub Sitnicki , Shuah Khan , Jesper Dangaard Brouer , Ihor Solodrai , Sechang Lim , Cong Wang , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH bpf v2 0/7] bpf, skmsg: some fixes for skmsg Date: Thu, 11 Jun 2026 20:34:08 +0800 Message-ID: <20260611123538.156005-1-jiayuan.chen@linux.dev> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT All fixes are from previous patches sent by Weiming Shi, Zhang Cen, Kuniyuki and Sechang Lim, which have already been reviewed by me and John and Jakub. https://lore.kernel.org/bpf/20260610081218.506709-2-rhkrqnwk98@gmail.com/ https://lore.kernel.org/bpf/20260520102715.3033936-1-rollkingzzc@gmail.com/ https://lore.kernel.org/bpf/20260424190310.1520555-2-bestswngs@gmail.com/ https://lore.kernel.org/bpf/20260424191602.1522411-3-bestswngs@gmail.com/ https://lore.kernel.org/bpf/20260423155807.1245644-2-bestswngs@gmail.com/ https://lore.kernel.org/bpf/20260221233234.3814768-4-kuniyu@google.com/ The automated reviewer (sashiko) may still flag a few other potential issues on top of this series. After looking into them, they are either already covered by the patches here, or only reachable under very narrow conditions that require a specially crafted BPF program and an unusual sk_msg ring state, so they are not practical to trigger and are left out of this series. I'm collecting these fixes together because the same problems have been re-sent many times in slightly different forms, and I hope this series can be prioritized for merging so the duplicates can finally settle. With so many AI-generated patches floating around for these spots, leaving them unmerged just keeps wasting maintainer review cycles on the same issues. v1->v2: fix problem when fix the conflict. Kuniyuki Iwashima (1): sockmap: Fix use-after-free in udp_bpf_recvmsg() Sechang Lim (2): bpf, sockmap: fix integer overflow in bpf_msg_pop_data() bounds check selftests/bpf: add test for bpf_msg_pop_data() overflow Weiming Shi (3): bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() bpf, sockmap: Fix wrong rsge offset in bpf_msg_push_data() bpf, sockmap: zero-initialize pages allocated in bpf_msg_push_data Zhang Cen (1): bpf, sockmap: keep sk_msg copy state in sync net/core/filter.c | 99 +++++++++++++++++-- net/ipv4/udp_bpf.c | 9 ++ .../selftests/bpf/prog_tests/sockmap_basic.c | 48 +++++++++ .../bpf/progs/test_sockmap_msg_pop_data.c | 27 +++++ 4 files changed, 174 insertions(+), 9 deletions(-) create mode 100644 tools/testing/selftests/bpf/progs/test_sockmap_msg_pop_data.c -- 2.43.0