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| author | Tong Zhang <ztong0001@gmail.com> | 2021-03-08 06:25:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-30 15:31:50 +0300 |
| commit | f35954a3961b71e6ad0667cd7bb8f430f3401aaa (patch) | |
| tree | cb874e8c7aee2b7d3340c13d1ad1952cfe13ce42 /drivers/atm | |
| parent | 852143ed96e2cac4a973041a24f443cc6315e055 (diff) | |
| download | linux-f35954a3961b71e6ad0667cd7bb8f430f3401aaa.tar.xz | |
atm: uPD98402: fix incorrect allocation
[ Upstream commit 3153724fc084d8ef640c611f269ddfb576d1dcb1 ]
dev->dev_data is set in zatm.c, calling zatm_start() will overwrite this
dev->dev_data in uPD98402_start() and a subsequent PRIV(dev)->lock
(i.e dev->phy_data->lock) will result in a null-ptr-dereference.
I believe this is a typo and what it actually want to do is to allocate
phy_data instead of dev_data.
Signed-off-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/atm')
| -rw-r--r-- | drivers/atm/uPD98402.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c index 7850758b5bb8..239852d85558 100644 --- a/drivers/atm/uPD98402.c +++ b/drivers/atm/uPD98402.c @@ -211,7 +211,7 @@ static void uPD98402_int(struct atm_dev *dev) static int uPD98402_start(struct atm_dev *dev) { DPRINTK("phy_start\n"); - if (!(dev->dev_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL))) + if (!(dev->phy_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL))) return -ENOMEM; spin_lock_init(&PRIV(dev)->lock); memset(&PRIV(dev)->sonet_stats,0,sizeof(struct k_sonet_stats)); |