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TI-2026-75934 Aliases CVE-2026-98806GHSA-jmhr-qgjx-cxxh

Linux kernel octeontx2-pf invalid access in aura BPID assignment with DCB

Priority LOW 22Published · Updated

Key facts

Attack vector
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Privileges required
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User interaction
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Attack complexity
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Impact type
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Confidentiality · integrity · availability
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Fix status
Partial Red Hat: 1 without a fix

No CVSS vector from any source. Fix status from CNA and Red Hat.

Summary

The octeontx2-pf driver in the Linux kernel dereferences queue_to_pfc_map during aura BPID assignment when CONFIG_DCB is enabled, and for SDP VFs that map is never initialized, causing invalid memory access. The fix adds a NULL check before the dereference and assigns a default BPID first, overriding it only when DCB is enabled and the map exists. Affected are Linux kernel 6.14.9 before 6.15, and 6.15 and later before 7.2.10 and 7.3. Red Hat rates it Moderate, and Red Hat Enterprise Linux 10 is affected with no fix available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

EPSS 0.0018 7th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.15, 7.2.10, 7.3Red Hat: 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.14.9 to before 6.156.15Patch availableCNA
LinuxLinux6.15 and later7.2.10, 7.3Patch availableCNA
  • Linux VendorLinux Affected 6.14.9 to before 6.15 Fixed in 6.15 Patch available CNA
  • Linux VendorLinux Affected 6.15 and later Fixed in 7.2.10, 7.3 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

Update to a Linux kernel release that includes the fix: 6.15, 7.2.10, or 7.3. Red Hat Enterprise Linux 10 has no fix available yet.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

  • Fix · CNA Linux (Linux) Fixed in 6.15
  • Fix · CNA Linux (Linux) Fixed in 7.2.10, 7.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet: Fix deferred
Not affected: 6 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 5

Timeline

  1. 2026-10-18 Threatist record created from CVE-2026-98806
  2. 2026-10-18 Alias added: GHSA-jmhr-qgjx-cxxh
  3. 2026-10-19 Fix available: Linux/[email protected] · CNA
  4. 2026-10-24 Affected versions changed · Red Hat
  5. 2026-10-24 CVSS score added · Red Hat
  6. 2026-11-06 Affected versions changed · Red Hat

References

Other 2

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
See all 21741 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences