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| author | Zeng Heng <zengheng4@huawei.com> | 2022-11-10 11:20:56 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2022-11-10 14:26:18 +0300 |
| commit | 91d5c5060ee24fe8da88cd585bb43b843d2f0dce (patch) | |
| tree | 441274ce394bad800e65f9c6ad74f329d97ba2d9 /drivers/pinctrl/mediatek/pinctrl-mt8192.c | |
| parent | fed74d75277da865da9ba334d3f5d5e3e327971d (diff) | |
| download | linux-91d5c5060ee24fe8da88cd585bb43b843d2f0dce.tar.xz | |
pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map
Here is the BUG report by KASAN about null pointer dereference:
BUG: KASAN: null-ptr-deref in strcmp+0x2e/0x50
Read of size 1 at addr 0000000000000000 by task python3/2640
Call Trace:
strcmp
__of_find_property
of_find_property
pinctrl_dt_to_map
kasprintf() would return NULL pointer when kmalloc() fail to allocate.
So directly return ENOMEM, if kasprintf() return NULL pointer.
Fixes: 57291ce295c0 ("pinctrl: core device tree mapping table parsing support")
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Link: https://lore.kernel.org/r/20221110082056.2014898-1-zengheng4@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/mediatek/pinctrl-mt8192.c')
0 files changed, 0 insertions, 0 deletions