What’s Vulnerable › Vulnerabilities

CVE-2026-68476: ipvs: reload ip header after head reallocation

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-15 · updated 2026-09-02

Description

In the Linux kernel, the following vulnerability has been resolved: ipvs: reload ip header after head reallocation __ip_vs_get_out_rt() calls skb_ensure_writable() which may reallocate skb->head.

Affected products

• Linux kernel: 4.10 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3fb7edd2018bb1ad0a68157383d9b9dac33dd645
• https://git.kernel.org/stable/c/4f2d1151421520d7ae16ca8d367d0ca09f5dfbd7
• https://git.kernel.org/stable/c/657118cad620172dfd8f6ed5717fd75c0d1f7a5a
• https://git.kernel.org/stable/c/a10f5080afbed242640f2984328de25f84557da1
• https://git.kernel.org/stable/c/a2f57827bf7c695b8c72dc4511cae8e86582369d
• https://git.kernel.org/stable/c/ac6ac3d35bfc0ade9d17d354c84e503a946ebdab
• https://git.kernel.org/stable/c/ad1e14710b360bda087ebf9fb82460eb5ef775de
• https://git.kernel.org/stable/c/e51687fc56c2e39ea6e9532925f1aabd4d529f61

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