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CVE-2026-98806

Linux: octeontx2-pf: Fix aura BPID assignment when CONFIG_DCB is enabled

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in59fbbded05e559675930fd521b8d62b72828b52dAlso 056994563935e049093f100efaad7e63ad113814, 6.15CVE List
Published18 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 59fbbded05e559675930fd521b8d62b72828b52dLinuxCVE List
  • 056994563935e049093f100efaad7e63ad113814LinuxCVE List
  • 6.15LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 8

  • Linuxaffected: 184fb40f731bd3353b0887731f7caba66609e9cd before 59fbbded05e559675930fd521b8d62b72828b52dCVE List
  • Linuxaffected: 184fb40f731bd3353b0887731f7caba66609e9cd before 056994563935e049093f100efaad7e63ad113814CVE List
  • Linuxaffected: 22079d5ae4a33679150f7de89f4107f4e0446886CVE List
  • Linuxaffected: 6.14.9 before 6.15CVE List
  • Linuxaffected: 6.15CVE List
  • Linuxunaffected: all versions before 6.15CVE List
  • Linuxunaffected: 7.2.10 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 2