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 11:27:33 +0200 |
| commit | 1b7184e227995cf14126722f4db8995edb8e13f3 (patch) | |
| tree | 9613d5636ded44ed7d81f0e1b1faf64dc2faf9f2 /include | |
| parent | b73205b2711a05d953185ff8623b1b2b6ae077c4 (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')
0 files changed, 0 insertions, 0 deletions