From: Luis Chamberlain <mcgrof@kernel.org> To: akpm@linux-foundation.org Cc: rdunlap@infradead.org, linux-kernel@vger.kernel.org, Luis Chamberlain <mcgrof@kernel.org>, stable@vger.kernel.org Subject: [PATCH] test_kmod: fix rmmod double free Date: Fri, 23 Nov 2018 21:05:00 -0800 Message-ID: <20181124050500.5257-1-mcgrof@kernel.org> (raw) We double free the misc device string twice on rmmod, fix this. Without this we cannot remove the module without crashing. Cc: <stable@vger.kernel.org> # for v4.12 and up Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> --- lib/test_kmod.c | 1 - 1 file changed, 1 deletion(-) diff --git a/lib/test_kmod.c b/lib/test_kmod.c index e3ddd836491f..d82d022111e0 100644 --- a/lib/test_kmod.c +++ b/lib/test_kmod.c @@ -1214,7 +1214,6 @@ void unregister_test_dev_kmod(struct kmod_test_device *test_dev) dev_info(test_dev->dev, "removing interface\n"); misc_deregister(&test_dev->misc_dev); - kfree(&test_dev->misc_dev.name); mutex_unlock(&test_dev->config_mutex); mutex_unlock(&test_dev->trigger_mutex); -- 2.19.1
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