What’s Vulnerable › Vulnerabilities

CVE-2025-68234: io_uring/cmd_net: fix wrong argument types for skb_queue_splice()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-16 · updated 2026-10-14

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/cmd_net: fix wrong argument types for skb_queue_splice() If timestamp retriving needs to be retried and the local list of SKB's already has entries, then it's spliced back into the socket queue. However, the arguments for the splice helper are transposed, causing exactly the wrong direction of splicing into the on-stack list. Fix that up.

Affected products

• Linux kernel: 6.17 — fixed in 6.18

How to fix

Upgrade to a fixed version: Linux kernel 6.18. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/46447367a52965e9d35f112f5b26fc8ff8ec443d
• https://git.kernel.org/stable/c/c85d2cfc5e24e6866b56c7253fd4e1c7db35986c

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