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 306C7242D9B; Wed, 25 Feb 2026 01:27:31 +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=1771982852; cv=none; b=JMOWB5HBNRzYW3NJel1inHC/PIYDm8YDIkTPUE2RZFjZ5jx0/pfq0zrLvMnSZRw/rh6GKlLioDocQUHERosBjFMtRSd/zATJCK5q4T4kEg/eqEuSGuUeeApLkPGqqOvwsAFcPPQ7d/bh2MM7HPny2tVVyqRx4bsYqo5EI/rihN0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771982852; c=relaxed/simple; bh=9gj3gsyUF201L3WLmH+DRKOdzej+iIShKavfeCakhpw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fvz6YJZECb2sPGJ+348lZ/MSoQ1BrBbiOBQmkbPVVoreiPqbR5f1+rHCP/b/LmdNzv5mzvic/r75V3wA8KYkKpRIfZXe/zldgwV1ANj5lZ9MqtLsYnhvL8bHwonFfcWX8UJwNkOWt/OC75kF6T5/2jC+sSBHIQC/8w9CXWY5rk8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jeVGj2gz; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="jeVGj2gz" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91931C116D0; Wed, 25 Feb 2026 01:27:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771982851; bh=9gj3gsyUF201L3WLmH+DRKOdzej+iIShKavfeCakhpw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jeVGj2gzOGQgrmn7tCtMG/DIYtvQ0UAirN9hWuJPOFbuDESu4bzR+LvX4IoZRpR1u qOuAEaz11gfwzh4L8tW5RpAn45ggQI5eCfIqrClT7R/cTwsqlcu4PRCDajN1A4ItXl fwGwESBZ7lM/kAKDvsZNQkK+FAx+d9h6lJlil0rs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alexey Simakov , "Rafael J. Wysocki" , Sasha Levin Subject: [PATCH 6.19 041/781] ACPICA: Fix NULL pointer dereference in acpi_ev_address_space_dispatch() Date: Tue, 24 Feb 2026 17:12:30 -0800 Message-ID: <20260225012400.711010282@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260225012359.695468795@linuxfoundation.org> References: <20260225012359.695468795@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alexey Simakov [ Upstream commit f851e03bce968ff9b3faad1b616062e1244fd38d ] Cover a missed execution path with a new check. Fixes: 0acf24ad7e10 ("ACPICA: Add support for PCC Opregion special context data") Link: https://github.com/acpica/acpica/commit/f421dd9dd897 Signed-off-by: Alexey Simakov Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/3030574.e9J7NaK4W3@rafael.j.wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpica/evregion.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index fa3475da7ea9b..b6198f73c81df 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -163,7 +163,9 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, return_ACPI_STATUS(AE_NOT_EXIST); } - if (region_obj->region.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) { + if (field_obj + && region_obj->region.space_id == + ACPI_ADR_SPACE_PLATFORM_COMM) { struct acpi_pcc_info *ctx = handler_desc->address_space.context; -- 2.51.0