The patch titled
add return value checking of get_user() in set_vesa_blanking()
has been added to the -mm tree. Its filename is
add-return-value-checking-of-get_user-in.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: add return value checking of get_user() in set_vesa_blanking()
From: Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx>
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@xxxxxxxxxxxxxx>
Cc: James Simmons <jsimmons@xxxxxxxxxxxxx>
Cc: "Antonino A. Daplas" <adaplas@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/char/vt.c | 14 +++++++++-----
1 files changed, 9 insertions(+), 5 deletions(-)
diff -puN drivers/char/vt.c~add-return-value-checking-of-get_user-in drivers/char/vt.c
--- a/drivers/char/vt.c~add-return-value-checking-of-get_user-in
+++ a/drivers/char/vt.c
@@ -152,7 +152,7 @@ static void gotoxy(struct vc_data *vc, i
static void save_cur(struct vc_data *vc);
static void reset_terminal(struct vc_data *vc, int do_clear);
static void con_flush_chars(struct tty_struct *tty);
-static void set_vesa_blanking(char __user *p);
+static int set_vesa_blanking(char __user *p);
static void set_cursor(struct vc_data *vc);
static void hide_cursor(struct vc_data *vc);
static void console_callback(void *ignored);
@@ -2369,7 +2369,7 @@ int tioclinux(struct tty_struct *tty, un
ret = __put_user(data, p);
break;
case TIOCL_SETVESABLANK:
- set_vesa_blanking(p);
+ ret = set_vesa_blanking(p);
break;
case TIOCL_GETKMSGREDIRECT:
data = kmsg_redirect;
@@ -3315,9 +3315,13 @@ postcore_initcall(vtconsole_class_init);
static void set_vesa_blanking(char __user *p)
{
- unsigned int mode;
- get_user(mode, p + 1);
- vesa_blank_mode = (mode < 4) ? mode : 0;
+ unsigned int mode;
+
+ if (get_user(mode, p + 1))
+ return -EFAULT;
+
+ vesa_blank_mode = (mode < 4) ? mode : 0;
+ return 0;
}
void do_blank_screen(int entering_gfx)
_
Patches currently in -mm which might be from yoichi_yuasa@xxxxxxxxxxxxxx are
origin.patch
git-mips.patch
git-mtd.patch
add-return-value-checking-of-get_user-in.patch
generic-ioremap_page_range-mips-conversion.patch
-
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