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CVE-2026-72017

UnknownEPSS 0.20%

Last modified

CVE-2026-72017 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. EPSS estimates a 0.20% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.

Metrics

EPSS Probability
0.20%

10.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 0e9797dc4ebdefe1b7f931b1f92d5e98e5dbf655; >= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 6124bd785073659c99385094657b77382ebce11b; >= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 2143fdc0ce27adbb1caaa1a97e0bfb9f3750aef4; >= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 26b131b2d5b55a81ef6182769d28105a870c0eb2; >= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 109241d9880488aafd8e104832b4d4859ad57244; >= 89e5785fc8a6b9eafd37f2318a9a76d479c796be, < 27f575836cfebbf872dec020428742b10650a955
LinuxLinux2.6.20

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-72017?
In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.
How severe is CVE-2026-72017?
Severity scoring for CVE-2026-72017 is pending analysis. The EPSS model estimates a 0.20% probability of exploitation in the next 30 days.
How do I fix CVE-2026-72017?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST