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 5DCED15ACF for ; Tue, 25 Jul 2023 11:00:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CBC32C433C7; Tue, 25 Jul 2023 11:00:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1690282857; bh=OppGpa/h8ZlcbP30JHx3ga6YtaKYFCYpPH2X3hyxitk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MWUDdtWDvg9IARFmtLdzartgiyamiGvEdEGZ2ETE3Qf6Ip9LJjeJva7UB32Rsd/0r JbkLlLL3kz6cOMScd/UUBQOR8Alq0/QIImapHPlHd33PHNeWQgaD1eof0UbXro+4Jg sHxLoiCx0pZnTBxtQIuKuGdVrPjAercBRWGydO10= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Christian=20K=C3=B6nig?= , hackyzh002 , Alex Deucher , Sasha Levin Subject: [PATCH 6.1 051/183] [PATCH AUTOSEL 4.19 01/11] drm/radeon: Fix integer overflow in radeon_cs_parser_init Date: Tue, 25 Jul 2023 12:44:39 +0200 Message-ID: <20230725104509.816903878@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230725104507.756981058@linuxfoundation.org> References: <20230725104507.756981058@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit f828b681d0cd566f86351c0b913e6cb6ed8c7b9c ] The type of size is unsigned, if size is 0x40000000, there will be an integer overflow, size will be zero after size *= sizeof(uint32_t), will cause uninitialized memory to be referenced later Reviewed-by: Christian König Signed-off-by: hackyzh002 Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- drivers/gpu/drm/radeon/radeon_cs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -270,7 +270,8 @@ int radeon_cs_parser_init(struct radeon_ { struct drm_radeon_cs *cs = data; uint64_t *chunk_array_ptr; - unsigned size, i; + u64 size; + unsigned i; u32 ring = RADEON_CS_RING_GFX; s32 priority = 0;