From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0E0D7F531C1 for ; Mon, 13 Apr 2026 18:29:07 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 67A0C6B0089; Mon, 13 Apr 2026 14:29:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 651AB6B008A; Mon, 13 Apr 2026 14:29:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 566FD6B0093; Mon, 13 Apr 2026 14:29:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 47E5A6B0089 for ; Mon, 13 Apr 2026 14:29:06 -0400 (EDT) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id E080213A212 for ; Mon, 13 Apr 2026 18:29:05 +0000 (UTC) X-FDA: 84654369450.13.09748E6 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) by imf08.hostedemail.com (Postfix) with ESMTP id C38FA16000E for ; Mon, 13 Apr 2026 18:29:03 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=pass header.d=bootlin.com header.s=dkim header.b=cZBSYs58; spf=pass (imf08.hostedemail.com: domain of alexis.lothore@bootlin.com designates 185.171.202.116 as permitted sender) smtp.mailfrom=alexis.lothore@bootlin.com; dmarc=pass (policy=reject) header.from=bootlin.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1776104944; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=J6w/vm8RhE1QibuAbeZrZpu+mbFZf/j6v7Old22bTNI=; b=FbYf10xmAi8EpmZeMzDRFXO97NLioBMlaCQfhcOS/wRUJ7Rvu61lgHTQpa9tyG9tMnDhXW 1Cp/m+HHtM/RbaS60JD/CvAU7EZSB7urOc5vuxb/3ZY2KCdQeSkMivs0r3nSJfTX/cgpwf jtorztBxW8Pk9p0e6bBoECo/PzHET04= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=pass header.d=bootlin.com header.s=dkim header.b=cZBSYs58; spf=pass (imf08.hostedemail.com: domain of alexis.lothore@bootlin.com designates 185.171.202.116 as permitted sender) smtp.mailfrom=alexis.lothore@bootlin.com; dmarc=pass (policy=reject) header.from=bootlin.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1776104944; a=rsa-sha256; cv=none; b=wlvg1KtWLSiqAcdgs049oo3JTv8IbX8a41PbayPv7Q1/iPPrfhGgKq3BwDYbgDown/zY1X yjMu8vEwreEM6vfScKUWwWPTTwuFFdr5JsFSdD8qOb0TIz7ppJJ4pakrXdlUM5PfSy1eQ2 YpiyLGMCgexz/ZHZJLO/jNM4xnlNPj4= Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 9FEB0C5B1AC; Mon, 13 Apr 2026 18:29:38 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id E99BB5FFB9; Mon, 13 Apr 2026 18:29:01 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id DE28C104504C2; Mon, 13 Apr 2026 20:28:55 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1776104939; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=J6w/vm8RhE1QibuAbeZrZpu+mbFZf/j6v7Old22bTNI=; b=cZBSYs587EC2pPG0T0zWnt6Rm3YWgLoLQHo/fERZmvyCcXnMbHG6UHv4UW2EhRe6AcwwK4 rLJqLN0QcpxJ+eU2wnigOQQIs5tEOULYPsd1eLcu1LilosOrM1UCnTdfl+hYwGPMfNEMV/ /5Ph0br4h41uQYEnh8/FBrJsTvpWOM11sOt/QM2ZTP7geak6StbyhdakN5Z/m5BxbpCjin o8OFL6dggWmiW+3fP5D/aD3dYrcXLqeqZdzncuDbmqmu9QPwy6ZHA14bp/bp5laVHfSfBf 7xNDlnmSlRRrNNIRvXgvQWAu27n6dhrzs7GZ2IUSyjAbZY1p1dja0IfA16reIg== From: =?utf-8?q?Alexis_Lothor=C3=A9_=28eBPF_Foundation=29?= Date: Mon, 13 Apr 2026 20:28:41 +0200 Subject: [PATCH RFC bpf-next 1/8] kasan: expose generic kasan helpers MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260413-kasan-v1-1-1a5831230821@bootlin.com> References: <20260413-kasan-v1-0-1a5831230821@bootlin.com> In-Reply-To: <20260413-kasan-v1-0-1a5831230821@bootlin.com> To: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Kumar Kartikeya Dwivedi , Song Liu , Yonghong Song , Jiri Olsa , John Fastabend , "David S. Miller" , David Ahern , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Shuah Khan , Maxime Coquelin , Alexandre Torgue , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Andrew Morton Cc: ebpf@linuxfoundation.org, Bastien Curutchet , Thomas Petazzoni , Xu Kuohai , bpf@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, =?utf-8?q?Alexis_Lothor=C3=A9_=28eBPF_Foundation=29?= X-Mailer: b4 0.15.1 X-Last-TLS-Session-Version: TLSv1.3 X-Rspamd-Queue-Id: C38FA16000E X-Stat-Signature: frq4yxgixjtxe3g6fkx9goirtxo8bny7 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1776104943-5252 X-HE-Meta: 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 w/iBDamJ UzZq9aZYME1pKGsMGRo7GKid5Wl7ijxDTHReVLlFhXeH0Rn6i66bcGN57uUKoyCcp8MzODiroCjhq1P2EV40bTfndd0dHCtkOi/vXEI1/qK0gmUMJuS427hEuTUfrFpi6LSCVs3jbL3YmIBFfNibIneNBcYqCFx3UUIyY798FZ6ZR10G5eyhp3c3j0GbQ00VwZsUX0ooxqfCptGqp7UPT13vk/N3rS7hquDI7hBFjI6npqhiSpCtswrkM4cR6roJmOqwM+7+z2YfoSlDl92VIpbRcMVyoDHYuqgi4AszXqiN4QDFGOv9b0G7BRQ4f5xKNxG9ekGfzmrUgttqRW11ks1YyWNL19Bo6XZTKswUvhl+C9P1PtvlyIJnW1RDX8RNvBriZo8Sf2w2xj/ys3X1Rhbxg6JsJwIY32DVjabXNA7eeDzsqskGMNfPoJJT0ucFhSVcN7j3e1q2LVmIjy7RbkEuE8VORKC3AyhC4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: In order to prepare KASAN helpers to be called from the eBPF subsystem (to add KASAN instrumentation at runtime when JITing eBPF programs), expose the __asan_{load,store}X functions in linux/kasan.h Signed-off-by: Alexis Lothoré (eBPF Foundation) --- include/linux/kasan.h | 13 +++++++++++++ mm/kasan/kasan.h | 10 ---------- 2 files changed, 13 insertions(+), 10 deletions(-) diff --git a/include/linux/kasan.h b/include/linux/kasan.h index 338a1921a50a..6f580d4a39e4 100644 --- a/include/linux/kasan.h +++ b/include/linux/kasan.h @@ -710,4 +710,17 @@ void kasan_non_canonical_hook(unsigned long addr); static inline void kasan_non_canonical_hook(unsigned long addr) { } #endif /* CONFIG_KASAN_GENERIC || CONFIG_KASAN_SW_TAGS */ +#ifdef CONFIG_KASAN_GENERIC +void __asan_load1(void *p); +void __asan_store1(void *p); +void __asan_load2(void *p); +void __asan_store2(void *p); +void __asan_load4(void *p); +void __asan_store4(void *p); +void __asan_load8(void *p); +void __asan_store8(void *p); +void __asan_load16(void *p); +void __asan_store16(void *p); +#endif /* CONFIG_KASAN_GENERIC */ + #endif /* LINUX_KASAN_H */ diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index fc9169a54766..3bfce8eb3135 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -594,16 +594,6 @@ void __asan_handle_no_return(void); void __asan_alloca_poison(void *, ssize_t size); void __asan_allocas_unpoison(void *stack_top, ssize_t stack_bottom); -void __asan_load1(void *); -void __asan_store1(void *); -void __asan_load2(void *); -void __asan_store2(void *); -void __asan_load4(void *); -void __asan_store4(void *); -void __asan_load8(void *); -void __asan_store8(void *); -void __asan_load16(void *); -void __asan_store16(void *); void __asan_loadN(void *, ssize_t size); void __asan_storeN(void *, ssize_t size); -- 2.53.0