From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 DF4DD4502F; Tue, 16 Jun 2026 17:35:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781631333; cv=none; b=YX4THUX0loYtFdIZgXBGpvvEQD5GxJp9CYlzRMw+sMJJrD7vPtsNNYctcOD75k05fbKh8bLwLOAI4KUUQu5/U1gqIM3rbQ/QJz/YAvSce7YFKBY2a6qTFRqP5piMR0JH9yfjlIX7C/bnJHtHCOVX0gIk6Pt1i90Sxq8fBbk5ghw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781631333; c=relaxed/simple; bh=L3l3k06sV5R8UaxPGC9PXa7TnsCdnwbhKitlMO/edfs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GcfdbsiISz1qRuGwfqXoDncl7HLWCbimiD4i0LhYuREfQJ57Mzq4YcJ7/BYFJLW5n1SRbi87OvuEI/jAlVmKpvRulfTdLj5gQR0s222lB4zdsn1I1Gz6j09bU/LvVPXp9bRJMPVS0rYaDXlj7EbrwEWLka3pgtEMqt3lv67kmzA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cFCVWke4; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="cFCVWke4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC2F01F000E9; Tue, 16 Jun 2026 17:35:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1781631332; bh=ocUwywtCwyaUFRanUW/0wD4MCI+2DW57wGmHkFN8Ko4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cFCVWke4+wKakbm++i+jBeiaDCL/pttePT0TdISstS/i87MhrpYr1rruKvY+5kxhp UUOh9dU4WGP2CgmLpHtkXsmxdwuGTs8tbyJ/seZ/AQ5OQJ9wrb0jMicsfm5jmu7uQS 1wuD9hcurwMMzpb/p00VIN2aGHH4KuiKI/wFBa0E= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eric Huang , Alex Deucher Subject: [PATCH 6.1 174/522] drm/amdkfd: fix NULL pointer bug in svm_range_set_attr Date: Tue, 16 Jun 2026 20:25:21 +0530 Message-ID: <20260616145134.285780229@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260616145125.307082728@linuxfoundation.org> References: <20260616145125.307082728@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eric Huang commit e984d61d92e702096058f0f828f4b2b8563b88ce upstream. The process_info could be NULL if user doesn't call kfd_ioctl_acquire_vm before calling kfd_ioctl_svm. Signed-off-by: Eric Huang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher (cherry picked from commit 83a26c812e0529eb040d31a76f73e33e637243d4) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -3404,6 +3404,9 @@ svm_range_set_attr(struct kfd_process *p svms = &p->svms; + if (!process_info) + return -EINVAL; + mutex_lock(&process_info->lock); svm_range_list_lock_and_flush_work(svms, mm);