From nobody Tue Sep 22 15:48:53 2026 X-Original-To: dev-commits-src-branches@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hq4Jj3c6Xz6sPbs for ; Tue, 22 Sep 2026 15:48:53 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hq4Jj2QN4z50YB for ; Tue, 22 Sep 2026 15:48:53 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790092133; h=from:from: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; bh=Ciz0MwtbzPWy4hdQWAIbAsOftzFqVtXogXitbJJbGOM=; b=JzSTvkm0ICqxnX/AqB2IVUwdpsGGove+bxFTRHpC3liS037RSjeHtiCQz3zR05y32dmAyg 9qlXBBlKLM574NjtHRFTqTnjgIBDa6BeDTgx57oVpIil6HFwpWud7Dn0OMneUI3XQNqd1p 8ZBgXkCszrnNePPlooH4YDydAekmd11Zv9PDivs4ZAIZf2MC8ENguEJzv3diiE3srHjPOG topRUHrqG05k1YMIe4/TFAGkxpu3XXtusi13YEEbzMec4YzQ/kuuGSZRZLyI+ZZAp9k1e8 s5LZKz+wuNRPZkAaeCCIUmp6BBE3/dmP2IkY5+Afdt9lNmd6iNBAMGGo/spVEg== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1790092133; b=HlrpGyvB7fU5JN4+K8iKHNdJM70tuKX+kXZ532Mo49MKz6cIvGayIFhkFvfyhODNbvpRbl E2w5NUASSF+Hs0mAuhiF76cqKk+7+/uHeuA0FfFCQRwaWg0CebVXrJnWtRT8XNQmXilGqT TO9B9eMB9k6Ef5PNzTLpk1XWvnBz+NlF6hbTUKYoWj8AlO/I3reJKX07odyd9+OUAXVt7b Ya0QSKzBA7Rmemrl/VMuQWkvvY6eUGVLoUztr3bzGPMiNbL1OzKg1eTyL/RrBKw/pgk9mS e18YCrrVhD+m/7tjPabau3SE2dOb0dhAnDYbhxP17bsoJGilpOknr/qoBvDXpg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1790092133; h=from:from: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; bh=Ciz0MwtbzPWy4hdQWAIbAsOftzFqVtXogXitbJJbGOM=; b=effAJ6/qKIdq4tbKqgzvBIl0ABVVcRw4dPyDsA+enQS2rjcfveFKASMvBg69749K7iRnmW GaUHdERKZSJVT7Zhst6TI4NDwEVZCWIEk4W3e8VQQD2AlaS3OOeZu5lin4peDzvGRu6/br l9qWzMGlG/YA303KGHrC0EHBHHqwkdbBQR9mBZvobyXUUW47Xqu5yFmFHDXTOlpotl1Ug/ vpEdRMAz6t5ln8XwwErzef4pvLFioXYPjyjNCMZHOhM+OHm3FWXHlOYkDWAHqeF5cLMpvv 5yFL5zpd1+1yiFjCFnkat9J669hg6TZVkAvLQbrk6f1WMxzjL03CVTlfQvX+lQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hq4Jj1SRfz1CJT for ; Tue, 22 Sep 2026 15:48:53 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 34135 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 22 Sep 2026 15:48:53 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Cc: David Heidelberg From: Vladimir Kondratyev Subject: git: fbaa247e8b7a - stable/15 - Implement vmemdup_{array}_user List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-branches@freebsd.org Sender: owner-dev-commits-src-branches@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: wulf X-Git-Repository: src X-Git-Refname: refs/heads/stable/15 X-Git-Reftype: branch X-Git-Commit: fbaa247e8b7a47af307255b01c81943b35af4486 Auto-Submitted: auto-generated Date: Tue, 22 Sep 2026 15:48:53 +0000 Message-Id: <6ab2a365.34135.386db048@gitrepo.freebsd.org> The branch stable/15 has been updated by wulf: URL: https://cgit.FreeBSD.org/src/commit/?id=fbaa247e8b7a47af307255b01c81943b35af4486 commit fbaa247e8b7a47af307255b01c81943b35af4486 Author: David Heidelberg AuthorDate: 2026-09-15 20:17:52 +0000 Commit: Vladimir Kondratyev CommitDate: 2026-09-22 15:47:03 +0000 Implement vmemdup_{array}_user This is what FreeBSD now does for memdup_user and memdup_array_user (which is wrong for memdup, but correct for vmemdup). The amdgpu DRM driver started this in Linux ~6.12.86+ Reviewed by: wulf MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D57444 (cherry picked from commit 302c6d25da6907ec762ff8937fa86d380743b000) --- sys/compat/linuxkpi/common/include/linux/string.h | 26 +++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h index b195dcc8fe9b..9df4ce0d796d 100644 --- a/sys/compat/linuxkpi/common/include/linux/string.h +++ b/sys/compat/linuxkpi/common/include/linux/string.h @@ -72,6 +72,21 @@ memdup_user(const void *ptr, size_t len) return (retval); } +static inline void * +vmemdup_user(const void *ptr, size_t len) +{ + void *retval; + int error; + + retval = malloc(len, M_KMALLOC, M_WAITOK); + error = linux_copyin(ptr, retval, len); + if (error != 0) { + free(retval, M_KMALLOC); + return (ERR_PTR(error)); + } + return (retval); +} + static inline void * memdup_user_nul(const void *ptr, size_t len) { @@ -99,6 +114,17 @@ memdup_array_user(const void *src, size_t n, size_t size) return (memdup_user(src, len)); } +static inline void * +vmemdup_array_user(const void *src, size_t n, size_t size) +{ + size_t len; + + if (check_mul_overflow(n, size, &len)) + return (ERR_PTR(-EOVERFLOW)); + + return (vmemdup_user(src, len)); +} + static inline void * kmemdup(const void *src, size_t len, gfp_t gfp) {