Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu(). Note that the only ->ndo_sk_get_lower_dev() user is bond_sk_get_lower_dev(), which uses RCU.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.18, < 5.15.199 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/13159c7125636371543a82cb7bbae00ab36730ccPatch
- https://git.kernel.org/stable/c/2b1bef126bbb8d0da51491357559126d567c1deePatch
- https://git.kernel.org/stable/c/c65f27b9c3be2269918e1cbad6d8884741f835c5Patch
- https://git.kernel.org/stable/c/e37ca0092ddace60833790b4ad7a390408fb1be9Patch
- https://git.kernel.org/stable/c/f09cd209359a23f88d4f3fa3d2379d057027e53cPatch
- https://git.kernel.org/stable/c/feb474ddbf26b51f462ae2e60a12013bdcfc5407Patch
FAQ
What is CVE-2025-40149?
CVE-2025-40149 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). get_netdev_for_sock() is called during setsockopt(), so not un...
How severe is CVE-2025-40149?
CVE-2025-40149 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-40149?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.