CVE-2026-98806: octeontx2-pf: Fix aura BPID assignment when CONFIG_DCB is enabled

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-18 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: Fix aura BPID assignment when CONFIG_DCB is enabled Previously, BPID assignment under CONFIG_DCB assumed `queue_to_pfc_map` was always initialized. For SDP VFs this leads to invalid memory access as it was not initialized. This patch adds a NULL check for `queue_to_pfc_map` before dereferencing it. Also, simplifies the logic by always assigning a default BPID first, then conditionally overriding it if CONFIG_DCB is enabled and the map exists.

Affected products

Linux kernel: from 6.14.9 before 6.15; 6.15 — fixed in 6.15, 7.3

How to fix

Upgrade to a fixed version: Linux kernel 6.15, 7.3. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-98806 or the next vulnerability affects your stack