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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:21:38 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-08 03:21:38 +0000 |
| commit | 9351405e44641037ccff29c0d88d92c0617b5088 (patch) | |
| tree | dfee90e28394ae31df1033696f8656add6c4fc26 /drivers/video/fbdev/core | |
| parent | Releasing progress-linux version 4.19.249-2progress5u1. (diff) | |
| download | linux-9351405e44641037ccff29c0d88d92c0617b5088.tar.xz linux-9351405e44641037ccff29c0d88d92c0617b5088.zip | |
Merging upstream version 4.19.260.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/video/fbdev/core')
| -rw-r--r-- | drivers/video/fbdev/core/fbcon.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 7c2582892..417f4bcc1 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -103,8 +103,8 @@ static int logo_lines; enums. */ static int logo_shown = FBCON_LOGO_CANSHOW; /* console mappings */ -static int first_fb_vc; -static int last_fb_vc = MAX_NR_CONSOLES - 1; +static unsigned int first_fb_vc; +static unsigned int last_fb_vc = MAX_NR_CONSOLES - 1; static int fbcon_is_default = 1; static int fbcon_has_exited; static int primary_device = -1; @@ -456,10 +456,12 @@ static int __init fb_console_setup(char *this_opt) options += 3; if (*options) first_fb_vc = simple_strtoul(options, &options, 10) - 1; - if (first_fb_vc < 0) + if (first_fb_vc >= MAX_NR_CONSOLES) first_fb_vc = 0; if (*options++ == '-') last_fb_vc = simple_strtoul(options, &options, 10) - 1; + if (last_fb_vc < first_fb_vc || last_fb_vc >= MAX_NR_CONSOLES) + last_fb_vc = MAX_NR_CONSOLES - 1; fbcon_is_default = 0; continue; } @@ -2468,6 +2470,11 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, if (charcount != 256 && charcount != 512) return -EINVAL; + /* font bigger than screen resolution ? */ + if (w > FBCON_SWAP(info->var.rotate, info->var.xres, info->var.yres) || + h > FBCON_SWAP(info->var.rotate, info->var.yres, info->var.xres)) + return -EINVAL; + /* Make sure drawing engine can handle the font */ if (!(info->pixmap.blit_x & (1 << (font->width - 1))) || !(info->pixmap.blit_y & (1 << (font->height - 1)))) |