Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
net: davicom: fix UAF in dm9000_drv_remove
dm is netdev private data and it cannot be used after free_netdev() call. Using dm after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
This is similar to the issue fixed in commit ad297cd2db89 (“net: qcom/emac: fix UAF in emac_remove”).
This bug is detected by our static analysis tool.
Details
- Affected product:
- Ubuntu 16.04 ELS , Ubuntu 18.04 ELS
- Affected packages:
- linux-hwe @ 4.15.0 (+2 more)
In the Linux kernel, the following vulnerability has been resolved:
net: davicom: fix UAF in dm9000_drv_remove
dm is netdev private data and it cannot be used after free_netdev() call. Using dm after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
This is similar to the issue fixed in commit ad297cd2db89 (“net: qcom/emac: fix UAF in emac_remove”).
This bug is detected by our static analysis tool.