From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9A8E7307AC7; Mon, 27 Apr 2026 11:34:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777289660; cv=none; b=TGS3BSbqcRvpHD01oNEGuP4LD37CE0JKMw66rZY/nHXiKsu+ZBslQiBeeTUXLKE1kRR9ZgCvSCCOWr7SatctG1QgKxvw6Mtw5A6rRg4abmZnJIhueMA90s63RPCMm+MPgHPjCgmFBqwUOTmKoCqWzPevatYvkdxBnGht8/EEhXI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777289660; c=relaxed/simple; bh=O8ektJ1n1PSGAIbD41m1X3VJm+IBZQl9v4CpPBf7BXo=; h=Date:To:From:Subject:Message-Id; b=jWmBO4mKS4+E+Oy8MGcJgS0m+ka0xleWo8dyPJlGHNe3mLrgCrb6n6+Ho9dJL7ZbQq2yNqCu2PmQz5GD25pvdMEAKOE/QU0KFSXeJ4xOpaXC4+6Klqogq+sCuGOKgdO9RHfKJs4K2/K237OwbMriR1hYHSQpf2ha8CH38dzN2sA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=B+KF3nyV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="B+KF3nyV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A8E6C19425; Mon, 27 Apr 2026 11:34:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1777289660; bh=O8ektJ1n1PSGAIbD41m1X3VJm+IBZQl9v4CpPBf7BXo=; h=Date:To:From:Subject:From; b=B+KF3nyVpdebAuwbR4+f5SzmmOYrQoHhSwFHTDKSegHo+p64uNRJB4v+iMYwj6ZGQ XMirCx9YqNv1R/H/T5FtvKrD3HMn5hwnUdS0wWekcbanFbPl/IvAJmbSek5HZg6rS9 6JeEbP7yg1hzYPivsLxsp/lTgkzBSUmwrgkXxMcU= Date: Mon, 27 Apr 2026 04:34:19 -0700 To: mm-commits@vger.kernel.org,ziy@nvidia.com,ying.huang@linux.alibaba.com,stable@vger.kernel.org,rakie.kim@sk.com,matthew.brost@intel.com,joshua.hahnjy@gmail.com,gourry@gourry.net,david@kernel.org,byungchul@sk.com,balbirs@nvidia.com,apopple@nvidia.com,akpm@linux-foundation.org,nueralspacetech@gmail.com,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] mm-migrate_device-fix-pgtable-leak-in-migrate_vma_insert_huge_pmd_page.patch removed from -mm tree Message-Id: <20260427113420.1A8E6C19425@smtp.kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page has been removed from the -mm tree. Its filename was mm-migrate_device-fix-pgtable-leak-in-migrate_vma_insert_huge_pmd_page.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Sunny Patel Subject: mm/migrate_device: fix pgtable leak in migrate_vma_insert_huge_pmd_page Date: Sat, 25 Apr 2026 19:14:48 +0530 When migrate_vma_insert_huge_pmd_page() jumps to unlock_abort due to a PMD check failure, the pgtable allocated earlier via pte_alloc_one() is never freed, causing a memory leak. Add a pte_free() call in the unlock_abort error path to release the pgtable before returning. Link: https://lore.kernel.org/20260425134453.23769-1-nueralspacetech@gmail.com Fixes: a30b48bf1b24 ("mm/migrate_device: implement THP migration of zone device pages") Signed-off-by: Sunny Patel Reviewed-by: Andrew Morton Acked-by: Zi Yan Cc: Alistair Popple Cc: Byungchul Park Cc: David Hildenbrand Cc: Gregory Price Cc: "Huang, Ying" Cc: Joshua Hahn Cc: Matthew Brost Cc: Rakie Kim Cc: Balbir Singh Cc: Signed-off-by: Andrew Morton --- mm/migrate_device.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/migrate_device.c~mm-migrate_device-fix-pgtable-leak-in-migrate_vma_insert_huge_pmd_page +++ a/mm/migrate_device.c @@ -893,6 +893,7 @@ static int migrate_vma_insert_huge_pmd_p unlock_abort: spin_unlock(ptl); + pte_free(vma->vm_mm, pgtable); abort: for (i = 0; i < HPAGE_PMD_NR; i++) src[i] &= ~MIGRATE_PFN_MIGRATE; _ Patches currently in -mm which might be from nueralspacetech@gmail.com are mm-migrate_device-fix-spinlock-leak-in-migrate_vma_insert_huge_pmd_page.patch mm-migrate_device-cleanup-up-pmd-checks-and-warnings.patch