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Message-Id: <1290192119-11704-1-git-send-email-segoon@openwall.com> Date: Fri, 19 Nov 2010 21:41:58 +0300 From: Vasiliy Kulikov <segoon@...nwall.com> To: kernel-janitors@...r.kernel.org Cc: Anton Vorontsov <cbou@...l.ru>, David Woodhouse <dwmw2@...radead.org>, linux-kernel@...r.kernel.org Subject: [PATCH] power: power_supply_core: fix use after free and memory leak device_unregister() might free its argument. This leads to freed memory use in kfree(). Also use put_device() instead of kfree() as dev may be already used in another layer after call to device_add(). Signed-off-by: Vasiliy Kulikov <segoon@...nwall.com> --- Compile tested only. drivers/power/power_supply_core.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index 91606bb..f06bad0 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -190,10 +190,10 @@ int power_supply_register(struct device *parent, struct power_supply *psy) goto success; create_triggers_failed: - device_unregister(psy->dev); + device_del(dev); kobject_set_name_failed: device_add_failed: - kfree(dev); + put_device(dev); success: return rc; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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