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Date: Mon, 8 Jul 2019 17:12:26 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, syzbot+7fddca22578bc67c3fe4@...kaller.appspotmail.com, Eric Biggers <ebiggers@...gle.com>, Johannes Berg <johannes.berg@...el.com> Subject: [PATCH 4.9 033/102] cfg80211: fix memory leak of wiphy device name From: Eric Biggers <ebiggers@...gle.com> commit 4f488fbca2a86cc7714a128952eead92cac279ab upstream. In wiphy_new_nm(), if an error occurs after dev_set_name() and device_initialize() have already been called, it's necessary to call put_device() (via wiphy_free()) to avoid a memory leak. Reported-by: syzbot+7fddca22578bc67c3fe4@...kaller.appspotmail.com Fixes: 1f87f7d3a3b4 ("cfg80211: add rfkill support") Cc: stable@...r.kernel.org Signed-off-by: Eric Biggers <ebiggers@...gle.com> Signed-off-by: Johannes Berg <johannes.berg@...el.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- net/wireless/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -478,7 +478,7 @@ use_default_name: &rdev->rfkill_ops, rdev); if (!rdev->rfkill) { - kfree(rdev); + wiphy_free(&rdev->wiphy); return NULL; }
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