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| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2018-01-15 19:04:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-22 17:42:28 +0300 |
| commit | 3711b5c568cd651ca78d6623d5c0fc839eac9499 (patch) | |
| tree | 44067de7883189d96610dbb456dcc85ae7d2e3cc /drivers/video/console | |
| parent | 6e6fd5b4ea9d568ac989a61b8d78ae0c5ce19bcf (diff) | |
| download | linux-3711b5c568cd651ca78d6623d5c0fc839eac9499.tar.xz | |
console/dummy: leave .con_font_get set to NULL
commit 724ba8b30b044aa0d94b1cd374fc15806cdd6f18 upstream.
When this method is set, the caller expects struct console_font fields
to be properly initialized when it returns. Leave it unset otherwise
nonsensical (leaked kernel stack) values are returned to user space.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video/console')
| -rw-r--r-- | drivers/video/console/dummycon.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 9269d5685239..b90ef96e43d6 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -67,7 +67,6 @@ const struct consw dummy_con = { .con_switch = DUMMY, .con_blank = DUMMY, .con_font_set = DUMMY, - .con_font_get = DUMMY, .con_font_default = DUMMY, .con_font_copy = DUMMY, }; |