What’s Vulnerable › Vulnerabilities

CVE-2026-74548: forcedeth: fix UAF of txrx_stats in nv_remove

• 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: 2026-08-15 · updated 2026-10-16

Description

In the Linux kernel, the following vulnerability has been resolved: forcedeth: fix UAF of txrx_stats in nv_remove nv_remove() frees the per-CPU txrx_stats before unregister_netdev(). Until unregister completes, ndo_get_stats64, the NAPI/xmit data path, and nv_close()/drain may still access txrx_stats, leading to a use-after-free. Free the stats only after unregister_netdev().

Affected products

• Linux kernel: 5.3 — 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/201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1
• https://git.kernel.org/stable/c/22666ba1420164753d7b0f5a841986b25ace5435
• https://git.kernel.org/stable/c/7c22b4ee0bd003cecfc14ca28981cb213e201f70
• https://git.kernel.org/stable/c/ae20a8a4de06a289d40b0a0633d8d573f1fcb049
• https://git.kernel.org/stable/c/c9d24a205fd508b9999fcab6aca4c590490a12cf
• https://git.kernel.org/stable/c/cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9
• https://git.kernel.org/stable/c/cf2dcde2284562ff87830ca0b7fa2b06e95aef1e
• https://git.kernel.org/stable/c/d51ce7a63b76eda02cabfed1b0cc277b2f5c9bcc

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