6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ma Ke make24@iscas.ac.cn
commit 5acdc432f832d810e0d638164c393b877291d9b4 upstream.
devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value.
Found by code review.
Cc: stable@vger.kernel.org Fixes: 0bb4e9187ea4 ("mt76: mt7615: fix hwmon temp sensor mem use-after-free") Signed-off-by: Ma Ke make24@iscas.ac.cn Reviewed-by: Matthias Brugger matthias.bgg@gmail.com Link: https://patch.msgid.link/20240905014753.353271-1-make24@iscas.ac.cn Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/mediatek/mt76/mt7615/init.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c @@ -56,6 +56,9 @@ int mt7615_thermal_init(struct mt7615_de
name = devm_kasprintf(&wiphy->dev, GFP_KERNEL, "mt7615_%s", wiphy_name(wiphy)); + if (!name) + return -ENOMEM; + hwmon = devm_hwmon_device_register_with_groups(&wiphy->dev, name, dev, mt7615_hwmon_groups); if (IS_ERR(hwmon))