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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-10-08 12:57:36 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-10-08 12:57:36 +0200 |
| commit | d8bad911e5e55e228d59c0606ff7e6b8131ca7bf (patch) | |
| tree | d0b97807fce4972f4bbc08f859fd2ec9ede12c5e /drivers/video | |
| parent | 5c63e407aaabb0464236cfc6279a2d79aede7073 (diff) | |
| download | linux-d8bad911e5e55e228d59c0606ff7e6b8131ca7bf.tar.gz linux-d8bad911e5e55e228d59c0606ff7e6b8131ca7bf.tar.bz2 linux-d8bad911e5e55e228d59c0606ff7e6b8131ca7bf.zip | |
fbdev: sbuslib: use checked version of put_user()
I'm not sure why the code assumes that only the first put_user() needs
an access_ok() check. I have made all the put_user() and get_user()
calls checked.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Cc: Mathieu Malaterre <malat@debian.org>
Cc: Peter Malone <peter.malone@gmail.com>,
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/sbuslib.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/video/fbdev/sbuslib.c b/drivers/video/fbdev/sbuslib.c index a436d44f1b7f..90c51330969c 100644 --- a/drivers/video/fbdev/sbuslib.c +++ b/drivers/video/fbdev/sbuslib.c @@ -106,11 +106,11 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, struct fbtype __user *f = (struct fbtype __user *) arg; if (put_user(type, &f->fb_type) || - __put_user(info->var.yres, &f->fb_height) || - __put_user(info->var.xres, &f->fb_width) || - __put_user(fb_depth, &f->fb_depth) || - __put_user(0, &f->fb_cmsize) || - __put_user(fb_size, &f->fb_cmsize)) + put_user(info->var.yres, &f->fb_height) || + put_user(info->var.xres, &f->fb_width) || + put_user(fb_depth, &f->fb_depth) || + put_user(0, &f->fb_cmsize) || + put_user(fb_size, &f->fb_cmsize)) return -EFAULT; return 0; } @@ -125,10 +125,10 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, unsigned int index, count, i; if (get_user(index, &c->index) || - __get_user(count, &c->count) || - __get_user(ured, &c->red) || - __get_user(ugreen, &c->green) || - __get_user(ublue, &c->blue)) + get_user(count, &c->count) || + get_user(ured, &c->red) || + get_user(ugreen, &c->green) || + get_user(ublue, &c->blue)) return -EFAULT; cmap.len = 1; @@ -165,10 +165,10 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg, u8 red, green, blue; if (get_user(index, &c->index) || - __get_user(count, &c->count) || - __get_user(ured, &c->red) || - __get_user(ugreen, &c->green) || - __get_user(ublue, &c->blue)) + get_user(count, &c->count) || + get_user(ured, &c->red) || + get_user(ugreen, &c->green) || + get_user(ublue, &c->blue)) return -EFAULT; if (index + count > cmap->len) |