From nobody Tue Sep 15 20:19:00 2026 X-Original-To: dev-commits-src-all@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 4hktdk1WTWz6sjxF for ; Tue, 15 Sep 2026 20:19:06 +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 4hktdj5lXyz3PSR for ; Tue, 15 Sep 2026 20:19:05 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789503545; 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=C5eXjr1ToNN83iaXgy/bZhV9nMY43flJG+JYHByDYgE=; b=NquHh7jnfP9UHAPKwe3+rg7TEGUWWSkYXROHD6vJsJxNIEp3iPZXs3EArUNsbwMYHf1PGa BBC0IRdaOTqK9eoD9ZQtvNYD2O8z/RNBeyJYx3rQefhnAYytWm9J+J6GzM65JyrabgIrW/ ug++EJBF5dpTUrLeib2nDE4f8v9vEKcwNCVNsF9lDzGTCpbffJz9izAtFn+gIIiOedDxf9 x/b23XHWBbDZ6onSFq4MF8CXMk3X+n/D1NrVGmd6pdZqgHz8wB1CoW2M1tn3qjWihCPClU aMxXfj20M+OXZGo4dFf7SUcOh7FlRIYBM8J53JZjiSm/Ts7AnhjJJJcuNLyHFQ== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1789503545; b=LY+MhN2OYTRHpdt/gP50T0bsXJhg+3v06gfN5wLmZN1LWGr7TyF3diL1yyNBT3+atTK1F0 oXVEbeb3V3uyHFOXPlmthgXMVTaX4O6Oq4hD2ys1wNoEahoPfnCwDrghP3/SLHVrMZpbJp if3UsHB3Nun7GVJ2EEuNRDzoHCbvfkPbvwg0oKjwX6GtyKxWPn3HKx/h7utF4vJejbOmBy /0MrZOJLBX64gRWVOg8ovlIQebAG/TUEliKoqgGBA+50Z1X62kCTASBwD+Ynw/CoqTgfdO CkVF5zftxXoBNp/0WaHYk4LEMYdRu9QdFfLwG2Ks9y2GX9w3OOjcco0ijvCoUg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789503545; 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=C5eXjr1ToNN83iaXgy/bZhV9nMY43flJG+JYHByDYgE=; b=IZHayLI4fQdrYSU7lLgr9YYnzOb3OLG4geP3ztaKOdnp8WqJpDNIKN7Ezsht+SAe2Wymft afLLGdB+EX06k57MUtVpRg1die8/L/reZTdZHaMvKdv4RFKmMsxvz9ataPmio8pgR3eIuo S+8BoDZewIhgx5/6HwwGmHPp06hBiowJmYTurOA6cm4T0/PFm9g+VqbyaVyYpxmeZ0SHUE Pmu42PrAHqdkcwIpRw9jUUSIK4uZDVsz6aM7gyZoDTb4I4SDaRfhPVmRn0MVYqfTGvgDcM G5xtvIfSuzcDBAuy3uyrRiUMuswmWctgTJ2P9hMbAfGX7Yhu+nCfAWhyWcpfhw== 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 4hktdj4qLzzFQr for ; Tue, 15 Sep 2026 20:19:05 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 307db by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 15 Sep 2026 20:19:00 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Cc: David Heidelberg From: Vladimir Kondratyev Subject: git: 302c6d25da69 - main - Implement vmemdup_{array}_user List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@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/main X-Git-Reftype: branch X-Git-Commit: 302c6d25da6907ec762ff8937fa86d380743b000 Auto-Submitted: auto-generated Date: Tue, 15 Sep 2026 20:19:00 +0000 Message-Id: <6aa9a834.307db.45ce5e4c@gitrepo.freebsd.org> The branch main has been updated by wulf: URL: https://cgit.FreeBSD.org/src/commit/?id=302c6d25da6907ec762ff8937fa86d380743b000 commit 302c6d25da6907ec762ff8937fa86d380743b000 Author: David Heidelberg AuthorDate: 2026-09-15 20:17:52 +0000 Commit: Vladimir Kondratyev CommitDate: 2026-09-15 20:17:52 +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 --- 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 8a4da9e19c94..75d7212998cf 100644 --- a/sys/compat/linuxkpi/common/include/linux/string.h +++ b/sys/compat/linuxkpi/common/include/linux/string.h @@ -73,6 +73,21 @@ 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) { @@ -100,6 +115,17 @@ 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) {