CVE-2025-21715
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 4.5
- Linux Kernel < 4.10
- Linux Kernel < 4.15
- Linux Kernel < 4.20
- Linux Kernel < 5.4.291
- Linux Kernel < 5.10.235
- Linux Kernel < 5.15.179
- Linux Kernel < 6.1.129
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2025-21715.md and follow it. Check whether this project is affected by CVE-2025-21715. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/19e65c45a1507a1a2926649d2db3583ed9d55fd9
- https://git.kernel.org/stable/c/2013c95df6752d9c88221d0f0f37b6f197969390
- https://git.kernel.org/stable/c/5a54367a7c2378c65aaa4d3cfd952f26adef7aa7
- https://git.kernel.org/stable/c/7d7d201eb3b766abe590ac0dda7a508b7db3e357
- https://git.kernel.org/stable/c/a53cb72043443ac787ec0b5fa17bb3f8ff3d462b
- https://git.kernel.org/stable/c/c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca
- https://git.kernel.org/stable/c/c94ab07edc2843e2f3d46dbd82e5c681503aaadf
- https://git.kernel.org/stable/c/db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9
References
- https://git.kernel.org/stable/c/19e65c45a1507a1a2926649d2db3583ed9d55fd9
- https://git.kernel.org/stable/c/2013c95df6752d9c88221d0f0f37b6f197969390
- https://git.kernel.org/stable/c/5a54367a7c2378c65aaa4d3cfd952f26adef7aa7
- https://git.kernel.org/stable/c/7d7d201eb3b766abe590ac0dda7a508b7db3e357
- https://git.kernel.org/stable/c/a53cb72043443ac787ec0b5fa17bb3f8ff3d462b
- https://git.kernel.org/stable/c/c411f9a5fdc9158e8f7c57eac961d3df3eb4d8ca
- https://git.kernel.org/stable/c/c94ab07edc2843e2f3d46dbd82e5c681503aaadf
- https://git.kernel.org/stable/c/db79e982c5f9e39ab710cbce55b05f2f5e6f1ca9
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html