diff options
| author | Igor Matheus Andrade Torrente <igormtorrente@gmail.com> | 2021-05-03 13:57:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-26 11:48:35 +0200 |
| commit | fd8f21c9d234111e1d73903e74672df8862d8c3a (patch) | |
| tree | 1e5425c88199729660252ac090de57a31e6384e9 /include/linux/console_struct.h | |
| parent | 2ca93aca35867187f35ed8d64b1588c07f525e9c (diff) | |
video: hgafb: fix potential NULL pointer dereference
commit dc13cac4862cc68ec74348a80b6942532b7735fa upstream.
The return of ioremap if not checked, and can lead to a NULL to be
assigned to hga_vram. Potentially leading to a NULL pointer
dereference.
The fix adds code to deal with this case in the error label and
changes how the hgafb_probe handles the return of hga_card_detect.
Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Igor Matheus Andrade Torrente <igormtorrente@gmail.com>
Link: https://lore.kernel.org/r/20210503115736.2104747-40-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/console_struct.h')
0 files changed, 0 insertions, 0 deletions