diff options
| author | Henry Martin <bsdhenrymartin@gmail.com> | 2025-06-25 20:49:01 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-17 18:37:17 +0200 |
| commit | 1bbdf4213711bb6dc365e7628430a63dd3280794 (patch) | |
| tree | 2bd6b94ec3969807ff61287246475cb8589320bb | |
| parent | fa7e9a15460aa9530b1a651e0ecfac6115f64658 (diff) | |
wifi: mt76: mt7925: Fix null-ptr-deref in mt7925_thermal_init()
[ Upstream commit 03ee8f73801a8f46d83dfc2bf73fb9ffa5a21602 ]
devm_kasprintf() returns NULL on error. Currently, mt7925_thermal_init()
does not check for this case, which results in a NULL pointer
dereference.
Add NULL check after devm_kasprintf() to prevent this issue.
Fixes: 396e41a74a88 ("wifi: mt76: mt7925: support temperature sensor")
Signed-off-by: Henry Martin <bsdhenryma@tencent.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250625124901.1839832-1-bsdhenryma@tencent.com
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7925/init.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c index 14553dcc61c5..02899320da5c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c @@ -52,6 +52,8 @@ static int mt7925_thermal_init(struct mt792x_phy *phy) name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7925_%s", wiphy_name(wiphy)); + if (!name) + return -ENOMEM; hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, phy, mt7925_hwmon_groups); |