6.15-stable review patch. If anyone has any objections, please let me know.
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From: Henry Martin bsdhenrymartin@gmail.com
[ 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 --- drivers/net/wireless/mediatek/mt76/mt7925/init.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c index 2a83ff59a968c..4249bad83c930 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);