From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 81ED53AFB06; Mon, 10 Aug 2026 09:47:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=220.197.31.3 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786355256; cv=none; b=RL0t0auLPvutYkAdFFRy3Ee1E9RffGlAVDuyovvh81EYvAgoTS62fCchBNi9xXMFLIZjqY6NsdJXa/Wq55TgyeMSquVue4X+bySgAUaxwisYtM+3mkoats+gG+huzc2gJTlIGR4unJ3bFa2cx3CdLRZwb70ATdLvtGU8brapGYE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786355256; c=relaxed/simple; bh=wJ0hQRrXr6ePCulkPRgl2Y5PbgRXg1H5IVq6gBz+g8E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=b3UDR4p03K/FefLfQcW/Me+4Bs/KD86K6MgDmiVoKu62zD38qw/tlvpxxQKUWDxy9MULiQ4KfSmwkgUHUgFiuT0eBCBNSROPdCDimcijgj48iMv47shiYXBwoF1AYiP3Om+ikMwrF+mK1PsqRTSw3yTvCc7C0AX410WbiCk2VpQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=CV7WbggQ; arc=none smtp.client-ip=220.197.31.3 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="CV7WbggQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=J6 uNYGp0tyq9ZzYJXLqvSuztow2BYweYkrqYoraOhM8=; b=CV7WbggQ7hEVZSjVQO VACfQaBrlH2q5zEzqY3qsxVO2YTe33WEDlF7XignKUXNeYZMr0RaPdxjDSgRyVlH f11XS7AKy0zlRNm/9UvJDyuPrXV/1e4gePR9X6pGmXxv+MSFBoPhuvzV1n7I76U2 nq6jRg/4tJaclx/C9Qc/AKczQ= Received: from nec8-i7 (unknown []) by gzga-smtp-mtada-g0-3 (Coremail) with SMTP id _____wB3EocEnnlqAlAcOg--.9113S2; Mon, 10 Aug 2026 17:46:45 +0800 (CST) From: chenyuan_fl@163.com To: bpf@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Eduard Zingerman , Kumar Kartikeya Dwivedi , Martin KaFai Lau , Song Liu , Yonghong Song , Jiri Olsa , Emil Tsalapatis , Ihor Solodrai , Yuan Chen Subject: [PATCH bpf-next v2 0/3] bpf, arena: fix range_tree consistency on allocation failure Date: Mon, 10 Aug 2026 17:46:31 +0800 Message-ID: <20260810094634.2723213-1-chenyuan_fl@163.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wB3EocEnnlqAlAcOg--.9113S2 X-Coremail-Antispam: 1Uf129KBjvdXoW7GF4UGF43XFW5Gr1xWF18AFb_yoWfGrX_Ja 48K34UW3yjqFWfGFy7CrWrZ348KrW5Kr10qFy0yw43Xry7ta1DGr4xAF1fJr18ZFW5Gryk CrZ0qFs3tr17AjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUvcSsGvfC2KfnxnUUI43ZEXa7IU83GYJUUUUU== X-CM-SenderInfo: xfkh05pxdqswro6rljoofrz/xtbDAQWhX2p5ngWU5gAA3A From: Yuan Chen The arena range tree can be left inconsistent when kmalloc_nolock() fails mid-operation. Patch 1 fixes range_tree_clear(), patch 2 fixes range_tree_set(), patch 3 makes arena_free_pages() and arena_free_worker() handle range_tree_set() failures. Changes in v2: - Fix multi-line comment style in patches 1 and 3 (opening /* on its own line), as pointed out in review. Yuan Chen (3): bpf, arena: fix range_tree_clear inconsistency on kmalloc_nolock failure bpf, arena: fix range_tree_set inconsistency on kmalloc_nolock failure bpf, arena: check range_tree_set return in arena_free_pages and arena_free_worker kernel/bpf/arena.c | 18 ++++++++++-- kernel/bpf/range_tree.c | 61 ++++++++++++++++++++++++++++++----------- 2 files changed, 60 insertions(+), 19 deletions(-) -- 2.54.0