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| author | Jean-Philippe Brucker <jean-philippe.brucker@arm.com> | 2019-03-22 15:26:57 +0000 |
|---|---|---|
| committer | Neil Armstrong <narmstrong@baylibre.com> | 2019-03-25 11:18:47 +0100 |
| commit | 2d8f92897ad816f5dda54b2ed2fd9f2d7cb1abde (patch) | |
| tree | cb747ddea9c75d7f786ae529b39b1a7bd1239b79 /drivers/pcmcia/pxa2xx_mainstone.c | |
| parent | 776e78677f514ecddd12dba48b9040958999bd5a (diff) | |
| download | linux-2d8f92897ad816f5dda54b2ed2fd9f2d7cb1abde.tar.bz2 | |
drm/meson: Uninstall IRQ handler
meson_drv_unbind() doesn't unregister the IRQ handler, which can lead to
use-after-free if the IRQ fires after unbind:
[ 64.656876] Unable to handle kernel paging request at virtual address ffff000011706dbc
...
[ 64.662001] pc : meson_irq+0x18/0x30 [meson_drm]
I'm assuming that a similar problem could happen on the error path of
bind(), so uninstall the IRQ handler there as well.
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190322152657.13752-2-jean-philippe.brucker@arm.com
Diffstat (limited to 'drivers/pcmcia/pxa2xx_mainstone.c')
0 files changed, 0 insertions, 0 deletions