CVE-2025-40149
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedNov 12, 2025
First seenNov 12, 2025
How to fix
Update
- linux linux_kernel5.15.199, 6.1.161, 6.6.121, 6.12.66, 6.17.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.18 ≤ v < 5.15.199, 5.16 ≤ v < 6.1.161, 6.2 ≤ v < 6.6.121, 6.7 ≤ v < 6.12.66, 6.13 ≤ v < 6.17.3 | 5.15.199, 6.1.161, 6.6.121, 6.12.66, 6.17.3 |
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