CVE-2021-47235
May 21, 2024, 4:54 p.m.
None
No Score
Description
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: fix potential use-after-free in ec_bhf_remove
static void ec_bhf_remove(struct pci_dev *dev)
{
...
struct ec_bhf_priv *priv = netdev_priv(net_dev);
unregister_netdev(net_dev);
free_netdev(net_dev);
pci_iounmap(dev, priv->dma_io);
pci_iounmap(dev, priv->io);
...
}
priv is netdev private data, but it is used
after free_netdev(). It can cause use-after-free when accessing priv
pointer. So, fix it by moving free_netdev() after pci_iounmap()
calls.
Product(s) Impacted
| Product | Versions |
|---|---|
| Linux kernel |
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
References
Tags
Timeline
Published: May 21, 2024, 3:15 p.m.
Last Modified: May 21, 2024, 4:54 p.m.
Last Modified: May 21, 2024, 4:54 p.m.
Status : Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
416baaa9-dc9f-4396-8d5f-8c081fb06d67
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