What’s Vulnerable › Vulnerabilities

CVE-2026-98051: net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times

• Severity: medium (CVSS 5.5 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: 2026-09-25 · updated 2026-10-19
• Weakness: CWE-670

Description

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times The loop initialised next_index from intf->tx_spb_index on every iteration, so incr_ring() always produced the same result and only one slot was ever tested. Move the initialisation before the loop so each iteration advances next_index and the function correctly checks that cnt consecutive descriptor slots are available before allowing a new transmission.

Affected products

• Linux kernel: from 6.6 before 6.6.158; from 6.7 before 6.12.111; from 6.13 before 6.18.53; from 6.19 before 7.2.7; 7.3-rc1, 7.3-rc2 — fixed in 6.12.111, 6.18.53, 6.6.158, 7.2.7

How to fix

Upgrade to a fixed version: Linux kernel 6.12.111, 6.18.53, 6.6.158, 7.2.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0c5cf62e72d7a666ee4da757e122dc1600df1ecc
• https://git.kernel.org/stable/c/5df7ecd302488287665ab9767bacba7ed7e2842f
• https://git.kernel.org/stable/c/990df1ba4d0805d1e7f6148c364febd2ab618766
• https://git.kernel.org/stable/c/a8bddab54aa68b407f12294acb05bd552fb6a492
• https://git.kernel.org/stable/c/f7f7a16dd46ace4e221336a184c7806f7de19547

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