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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
6af55ff52b02d492d45db88df3e461fa51a6f753 to < db2bc3cfd2bc01621014d4f17cdfc74611f339c8affected6af55ff52b02d492d45db88df3e461fa51a6f753 to < 1cafc540b7bf1b6a5a77dc000205fe337ef6eba6affected6af55ff52b02d492d45db88df3e461fa51a6f753 to < b1ad283755095a4b9d1431aeb357d7df1a33d3bbaffected6af55ff52b02d492d45db88df3e461fa51a6f753 to < 0260916843cc74f3906acf8b6f256693e01530a2affected6af55ff52b02d492d45db88df3e461fa51a6f753 to < 19f88ca68ccf8771276a606765239b167654f84aaffected6af55ff52b02d492d45db88df3e461fa51a6f753 to < 95deeb29d831e2fae608439e243e7a520611e7eaaffected6af55ff52b02d492d45db88df3e461fa51a6f753 to < d11d79e52ba080ee567cb7d7eb42a5ade60a8130affected6af55ff52b02d492d45db88df3e461fa51a6f753 to < 9cca0c2d70149160407bda9a9446ce0c29b6e6c6affected
Linux Linux
Default version status: affected
3.15affected0 to < 3.15unaffected4.4.274 to ≤ 4.4.*unaffected4.9.274 to ≤ 4.9.*unaffected4.14.238 to ≤ 4.14.*unaffected4.19.196 to ≤ 4.19.*unaffected5.4.128 to ≤ 5.4.*unaffected5.10.46 to ≤ 5.10.*unaffected5.12.13 to ≤ 5.12.*unaffected5.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/db2bc3cfd2bc01621014d4f17cdfc74611f339c8 ↗
- https://git.kernel.org/stable/c/1cafc540b7bf1b6a5a77dc000205fe337ef6eba6 ↗
- https://git.kernel.org/stable/c/b1ad283755095a4b9d1431aeb357d7df1a33d3bb ↗
- https://git.kernel.org/stable/c/0260916843cc74f3906acf8b6f256693e01530a2 ↗
- https://git.kernel.org/stable/c/19f88ca68ccf8771276a606765239b167654f84a ↗
- https://git.kernel.org/stable/c/95deeb29d831e2fae608439e243e7a520611e7ea ↗
- https://git.kernel.org/stable/c/d11d79e52ba080ee567cb7d7eb42a5ade60a8130 ↗
- https://git.kernel.org/stable/c/9cca0c2d70149160407bda9a9446ce0c29b6e6c6 ↗