diff options
| author | Michal Kazior <michal@plume.com> | 2019-02-11 10:29:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-27 09:33:51 +0200 |
| commit | f1289edae5148d31477dcbac53010570b291879b (patch) | |
| tree | 476f52ae27204ba3cd9311121f00e5ac9a031af0 /include/linux/timerqueue.h | |
| parent | abcbad869e68c472a16f25737ab3cf22277d4b63 (diff) | |
leds: lp55xx: fix null deref on firmware load failure
[ Upstream commit 5ddb0869bfc1bca6cfc592c74c64a026f936638c ]
I've stumbled upon a kernel crash and the logs
pointed me towards the lp5562 driver:
> <4>[306013.841294] lp5562 0-0030: Direct firmware load for lp5562 failed with error -2
> <4>[306013.894990] lp5562 0-0030: Falling back to user helper
> ...
> <3>[306073.924886] lp5562 0-0030: firmware request failed
> <1>[306073.939456] Unable to handle kernel NULL pointer dereference at virtual address 00000000
> <4>[306074.251011] PC is at _raw_spin_lock+0x1c/0x58
> <4>[306074.255539] LR is at release_firmware+0x6c/0x138
> ...
After taking a look I noticed firmware_release()
could be called with either NULL or a dangling
pointer.
Fixes: 10c06d178df11 ("leds-lp55xx: support firmware interface")
Signed-off-by: Michal Kazior <michal@plume.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/timerqueue.h')
0 files changed, 0 insertions, 0 deletions