linux-kernel - [PATCH v2 11/13] udmabuf: drop WARN

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180911134216.9760-12-kraxel@redhat.com>
Date:   Tue, 11 Sep 2018 15:42:14 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     dri-devel@...ts.freedesktop.org
Cc:     laurent.pinchart@...asonboard.com, daniel@...ll.ch,
        Gerd Hoffmann <kraxel@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        linux-media@...r.kernel.org (open list:DMA BUFFER SHARING FRAMEWORK),
        linaro-mm-sig@...ts.linaro.org (moderated list:DMA BUFFER SHARING
        FRAMEWORK), linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2 11/13] udmabuf: drop WARN_ON() check.

Reported-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
---
 drivers/dma-buf/udmabuf.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dma-buf/udmabuf.c b/drivers/dma-buf/udmabuf.c
index b637a8be6d..7a4fd2194d 100644
--- a/drivers/dma-buf/udmabuf.c
+++ b/drivers/dma-buf/udmabuf.c
@@ -25,9 +25,6 @@ static int udmabuf_vm_fault(struct vm_fault *vmf)
 	struct vm_area_struct *vma = vmf->vma;
 	struct udmabuf *ubuf = vma->vm_private_data;
 
-	if (WARN_ON(vmf->pgoff >= ubuf->pagecount))
-		return VM_FAULT_SIGBUS;
-
 	vmf->page = ubuf->pages[vmf->pgoff];
 	get_page(vmf->page);
 	return 0;
-- 
2.9.3