| 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
| ||
|
Message-Id: <1427232238-21099-2-git-send-email-niederp@physik.uni-kl.de> Date: Tue, 24 Mar 2015 22:23:48 +0100 From: Thomas Niederprüm <niederp@...sik.uni-kl.de> To: plagnioj@...osoft.com, tomi.valkeinen@...com, maxime.ripard@...e-electrons.com, kernel@...gutronix.de, shawn.guo@...aro.org, robh+dt@...nel.org Cc: linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org, Thomas Niederprüm <niederp@...sik.uni-kl.de> Subject: [PATCHv5 01/11] fbdev: ssd1307fb: fix memory address smem_start. the smem_start pointer of the framebuffer info struct needs to hold the physical address rather than the logical address. Right now the logical address returned by kmalloc is stored. This patch converts this address to a physical address and thus fixes a driver crash on mmaping the framebuffer memory due to an access to the wrong memory address. Signed-off-by: Thomas Niederprüm <niederp@...sik.uni-kl.de> Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com> --- drivers/video/fbdev/ssd1307fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index f7ed6d9..61e0ce8 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -515,7 +515,7 @@ static int ssd1307fb_probe(struct i2c_client *client, info->var.blue.offset = 0; info->screen_base = (u8 __force __iomem *)vmem; - info->fix.smem_start = (unsigned long)vmem; + info->fix.smem_start = __pa(vmem); info->fix.smem_len = vmem_size; fb_deferred_io_init(info); -- 2.3.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists