linux-kernel - [PATCH] fbdev: fix fb_pad_unaligned

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: <20260127193101.12343-1-osama.abdelkader@gmail.com>
Date: Tue, 27 Jan 2026 20:30:55 +0100
From: Osama Abdelkader <osama.abdelkader@...il.com>
To: Simona Vetter <simona@...ll.ch>,
	Helge Deller <deller@....de>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Lee Jones <lee@...nel.org>,
	Murad Masimov <m.masimov@...integration.ru>,
	Osama Abdelkader <osama.abdelkader@...il.com>,
	Yongzhen Zhang <zhangyongzhen@...inos.cn>,
	Quanmin Yan <yanquanmin1@...wei.com>,
	linux-fbdev@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] fbdev: fix fb_pad_unaligned_buffer mask

mask is u8, so it should use 0xff instead of 0xfff
Signed-off-by: Osama Abdelkader <osama.abdelkader@...il.com>
---
 drivers/video/fbdev/core/fbmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index eff757ebbed1..cf199038f069 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -100,7 +100,7 @@ EXPORT_SYMBOL(fb_pad_aligned_buffer);
 void fb_pad_unaligned_buffer(u8 *dst, u32 d_pitch, u8 *src, u32 idx, u32 height,
 				u32 shift_high, u32 shift_low, u32 mod)
 {
-	u8 mask = (u8) (0xfff << shift_high), tmp;
+	u8 mask = (u8) (0xff << shift_high), tmp;
 	int i, j;
 
 	for (i = height; i--; ) {
-- 
2.43.0