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| author | Wang Hai <wanghai38@huawei.com> | 2021-10-26 14:23:48 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-12-14 17:09:14 +0300 |
| commit | 3d5831a40d3464eea158180eb12cbd81c5edfb6a (patch) | |
| tree | c8c62d319e492474f25860b37e2b1dec11d6265d /lib/netdev-notifier-error-inject.c | |
| parent | c2611e479f5d9b05108270e1ab423955486b4457 (diff) | |
| download | linux-3d5831a40d3464eea158180eb12cbd81c5edfb6a.tar.xz | |
media: msi001: fix possible null-ptr-deref in msi001_probe()
I got a null-ptr-deref report:
BUG: kernel NULL pointer dereference, address: 0000000000000060
...
RIP: 0010:v4l2_ctrl_auto_cluster+0x57/0x270
...
Call Trace:
msi001_probe+0x13b/0x24b [msi001]
spi_probe+0xeb/0x130
...
do_syscall_64+0x35/0xb0
In msi001_probe(), if the creation of control for bandwidth_auto
fails, there will be a null-ptr-deref issue when it is used in
v4l2_ctrl_auto_cluster().
Check dev->hdl.error before v4l2_ctrl_auto_cluster() to fix this bug.
Link: https://lore.kernel.org/linux-media/20211026112348.2878040-1-wanghai38@huawei.com
Fixes: 93203dd6c7c4 ("[media] msi001: Mirics MSi001 silicon tuner driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions