CVE-2025-21715

net: davicom: fix UAF in dm9000_drv_remove

Description

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.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9 patch
https://git.kernel.org/stable/c/a53cb72043443ac787ec0b5fa17bb3f8ff3d462b patch
https://git.kernel.org/stable/c/7d7d201eb3b766abe590ac0dda7a508b7db3e357 patch
https://git.kernel.org/stable/c/c94ab07edc2843e2f3d46dbd82e5c681503aaadf patch
https://git.kernel.org/stable/c/c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca patch
https://git.kernel.org/stable/c/5a54367a7c2378c65aaa4d3cfd952f26adef7aa7 patch
https://git.kernel.org/stable/c/2013c95df6752d9c88221d0f0f37b6f197969390 patch
https://git.kernel.org/stable/c/19e65c45a1507a1a2926649d2db3583ed9d55fd9 patch

Frequently Asked Questions

What is the severity of CVE-2025-21715?
CVE-2025-21715 has been scored as a high severity vulnerability.
How to fix CVE-2025-21715?
To fix CVE-2025-21715, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21715 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21715 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21715?
CVE-2025-21715 affects Linux Linux, Linux Linux.
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