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.

Classification

CVE ID: CVE-2025-21715

Affected Products

Vendor: Linux, Linux

Product: Linux, Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 1.85% (scored less or equal to compared to others)

EPSS Date: 2025-03-27 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-21715
https://git.kernel.org/stable/c/c94ab07edc2843e2f3d46dbd82e5c681503aaadf
https://git.kernel.org/stable/c/c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca
https://git.kernel.org/stable/c/5a54367a7c2378c65aaa4d3cfd952f26adef7aa7
https://git.kernel.org/stable/c/2013c95df6752d9c88221d0f0f37b6f197969390
https://git.kernel.org/stable/c/19e65c45a1507a1a2926649d2db3583ed9d55fd9

Timeline