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| author | Qinglang Miao <miaoqinglang@huawei.com> | 2020-11-20 15:48:46 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-30 11:53:20 +0100 |
| commit | 365a94fc1e3d0c78df67b39b819ceb645b96b391 (patch) | |
| tree | e2948321bda4a3c68ddc9401278956a039a49edf /drivers/memstick | |
| parent | c802d9e5e69d9f631a9f126a2b645f2fbac4858f (diff) | |
| download | linux-stable-365a94fc1e3d0c78df67b39b819ceb645b96b391.tar.gz linux-stable-365a94fc1e3d0c78df67b39b819ceb645b96b391.tar.bz2 linux-stable-365a94fc1e3d0c78df67b39b819ceb645b96b391.zip | |
memstick: fix a double-free bug in memstick_check
[ Upstream commit e3e9ced5c93803d5b2ea1942c4bf0192622531d6 ]
kfree(host->card) has been called in put_device so that
another kfree would raise cause a double-free bug.
Fixes: 0193383a5833 ("memstick: core: fix device_register() error handling")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Link: https://lore.kernel.org/r/20201120074846.31322-1-miaoqinglang@huawei.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/memstick')
| -rw-r--r-- | drivers/memstick/core/memstick.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c index ef03d6fafc5c..12bc3f5a6cbb 100644 --- a/drivers/memstick/core/memstick.c +++ b/drivers/memstick/core/memstick.c @@ -468,7 +468,6 @@ static void memstick_check(struct work_struct *work) host->card = card; if (device_register(&card->dev)) { put_device(&card->dev); - kfree(host->card); host->card = NULL; } } else |