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TI-2025-26643 Aliases CVE-2025-39971GHSA-h9cj-j3jc-97wc

i40e: fix idx validation in config queues msg

Priority LOW 37Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 48 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: i40e: fix idx validation in config queues msg Ensure idx is within range of active/initialized TCs when iterating over vf->ch[idx] in i40e_vc_config_queues_msg().

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00158 4th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.300, 5.10.245, 5.15.194 +5Red Hat: 17 advisoriesRed Hat: 48 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux4.17 and later5.4.300, 5.10.245, 5.15.194, 6.1.155, 6.6.109, 6.12.50, 6.16.10, 6.17Patch availableCNA
  • Linux VendorLinux Affected 4.17 and later Fixed in 5.4.300, 5.10.245, 5.15.194, 6.1.155, 6.6.109, 6.12.50, 6.16.10, 6.17 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

  • Fix · CNA Linux (Linux) Fixed in 5.4.300, 5.10.245, 5.15.194, 6.1.155, 6.6.109, 6.12.50, 6.16.10, 6.17

Red Hat 17 advisories

  • RHSA-2026:1886 Released 2026-02-04 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.184.1.el8_4, kernel-4.18.0-305.184.1.el8_4, kernel-abi-stablelists-4.18.0-305.184.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.184.1.el8_4, kernel-4.18.0-305.184.1.el8_4, kernel-abi-stablelists-4.18.0-305.184.1.el8_4 +14
  • RHSA-2026:1623 Released 2026-02-02 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.146.1.rt56.1298.el7, kernel-rt-debug-3.10.0-1160.146.1.rt56.1298.el7, kernel-rt-debug-devel-3.10.0-1160.146.1.rt56.1298.el7 +4
  • RHSA-2026:1581 Released 2026-01-29 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) bpftool-3.10.0-1160.146.1.el7, kernel-3.10.0-1160.146.1.el7, kernel-abi-whitelists-3.10.0-1160.146.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) kernel-debug-devel-3.10.0-1160.146.1.el7, kernel-tools-libs-devel-3.10.0-1160.146.1.el7
Show 14 more Red Hat advisories
  • RHSA-2026:1494 Released 2026-01-28 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.163.1.el9_0, kernel-debug-devel-matched-5.14.0-70.163.1.el9_0, kernel-devel-5.14.0-70.163.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.163.1.el9_0, kernel-5.14.0-70.163.1.el9_0, kernel-abi-stablelists-5.14.0-70.163.1.el9_0 +14
  • RHSA-2026:1495 Released 2026-01-28 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-core-5.14.0-70.163.1.rt21.235.el9_0, kernel-rt-debug-5.14.0-70.163.1.rt21.235.el9_0 +7
  • RHSA-2026:1441 Released 2026-01-28 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.154.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.154.1.el9_2, kernel-64k-devel-5.14.0-284.154.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.154.1.el9_2, kernel-5.14.0-284.154.1.el9_2, kernel-64k-5.14.0-284.154.1.el9_2 +29
  • RHSA-2026:1445 Released 2026-01-28 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.126.1.el8_8, kernel-4.18.0-477.126.1.el8_8, kernel-abi-stablelists-4.18.0-477.126.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.126.1.el8_8, kernel-4.18.0-477.126.1.el8_8, kernel-abi-stablelists-4.18.0-477.126.1.el8_8 +14
  • RHSA-2026:1443 Released 2026-01-28 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-core-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-debug-5.14.0-284.154.1.rt14.439.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-core-5.14.0-284.154.1.rt14.439.el9_2, kernel-rt-debug-5.14.0-284.154.1.rt14.439.el9_2 +11
  • RHSA-2026:0643 Released 2026-01-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.181.1.el8_2, kernel-4.18.0-193.181.1.el8_2, kernel-abi-whitelists-4.18.0-193.181.1.el8_2 +14
  • RHSA-2026:0536 Released 2026-01-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.175.1.el8_6, kernel-4.18.0-372.175.1.el8_6, kernel-abi-stablelists-4.18.0-372.175.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.175.1.el8_6, kernel-4.18.0-372.175.1.el8_6, kernel-abi-stablelists-4.18.0-372.175.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.175.1.el8_6, kernel-4.18.0-372.175.1.el8_6, kernel-abi-stablelists-4.18.0-372.175.1.el8_6 +14
  • RHSA-2026:0173 Released 2026-01-07 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.4) kernel-tools-libs-devel-5.14.0-427.104.1.el9_4, libperf-5.14.0-427.104.1.el9_4
    • Red Hat Enterprise Linux AppStream EUS (v.9.4) kernel-64k-debug-devel-5.14.0-427.104.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.104.1.el9_4, kernel-64k-devel-5.14.0-427.104.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool-7.3.0-427.104.1.el9_4, kernel-5.14.0-427.104.1.el9_4, kernel-64k-5.14.0-427.104.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt-5.14.0-427.104.1.el9_4, kernel-rt-core-5.14.0-427.104.1.el9_4, kernel-rt-debug-5.14.0-427.104.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt-5.14.0-427.104.1.el9_4, kernel-rt-core-5.14.0-427.104.1.el9_4, kernel-rt-debug-5.14.0-427.104.1.el9_4 +11
  • RHSA-2025:22571 Released 2025-12-02 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.47.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.47.1.el10_0, kernel-64k-devel-6.12.0-55.47.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.47.1.el10_0, kernel-64k-6.12.0-55.47.1.el10_0, kernel-64k-core-6.12.0-55.47.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.47.1.el10_0, libperf-6.12.0-55.47.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.47.1.el10_0, kernel-rt-64k-6.12.0-55.47.1.el10_0, kernel-rt-64k-core-6.12.0-55.47.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.47.1.el10_0, kernel-rt-core-6.12.0-55.47.1.el10_0, kernel-rt-debug-6.12.0-55.47.1.el10_0 +11
  • RHSA-2025:22395 Released 2025-12-01 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-124.16.1.el10_1, kernel-64k-debug-devel-matched-6.12.0-124.16.1.el10_1, kernel-64k-devel-6.12.0-124.16.1.el10_1 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-124.16.1.el10_1, kernel-64k-6.12.0-124.16.1.el10_1, kernel-64k-core-6.12.0-124.16.1.el10_1 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-124.16.1.el10_1, libperf-6.12.0-124.16.1.el10_1
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-124.16.1.el10_1, kernel-rt-64k-6.12.0-124.16.1.el10_1, kernel-rt-64k-core-6.12.0-124.16.1.el10_1 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-124.16.1.el10_1, kernel-rt-core-6.12.0-124.16.1.el10_1, kernel-rt-debug-6.12.0-124.16.1.el10_1 +9
  • RHSA-2025:21933 Released 2025-11-24 · Red Hat rating Moderate
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.66.1.el9_6, libperf-5.14.0-570.66.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.66.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.66.1.el9_6, kernel-64k-devel-5.14.0-570.66.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.66.1.el9_6, kernel-64k-5.14.0-570.66.1.el9_6, kernel-64k-core-5.14.0-570.66.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.66.1.el9_6, kernel-rt-64k-5.14.0-570.66.1.el9_6, kernel-rt-64k-core-5.14.0-570.66.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.66.1.el9_6, kernel-rt-core-5.14.0-570.66.1.el9_6, kernel-rt-debug-5.14.0-570.66.1.el9_6 +11
  • RHSA-2025:21920 Released 2025-11-24 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.85.1.rt7.426.el8_10, kernel-rt-core-4.18.0-553.85.1.rt7.426.el8_10, kernel-rt-debug-4.18.0-553.85.1.rt7.426.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.85.1.rt7.426.el8_10, kernel-rt-core-4.18.0-553.85.1.rt7.426.el8_10, kernel-rt-debug-4.18.0-553.85.1.rt7.426.el8_10 +7
  • RHSA-2025:21917 Released 2025-11-24 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.85.1.el8_10, kernel-4.18.0-553.85.1.el8_10, kernel-abi-stablelists-4.18.0-553.85.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.85.1.el8_10
  • RHSA-2025:21469 Released 2025-11-17 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-611.8.1.el9_7, kernel-64k-debug-devel-matched-5.14.0-611.8.1.el9_7, kernel-64k-devel-5.14.0-611.8.1.el9_7 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-611.8.1.el9_7, kernel-64k-5.14.0-611.8.1.el9_7, kernel-64k-core-5.14.0-611.8.1.el9_7 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-611.8.1.el9_7, libperf-5.14.0-611.8.1.el9_7
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-611.8.1.el9_7, kernel-rt-64k-5.14.0-611.8.1.el9_7, kernel-rt-64k-core-5.14.0-611.8.1.el9_7 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-611.8.1.el9_7, kernel-rt-core-5.14.0-611.8.1.el9_7, kernel-rt-debug-5.14.0-611.8.1.el9_7 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.4)Fixed RHSA-2026:0173
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2025:21933
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:22395
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:21469
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2026:1494
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:1441
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2025:22571
Red Hat Enterprise Linux AppStream EUS (v.9.4)Fixed RHSA-2026:0173
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2025:21933
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2025:22395
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:21917
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2025:21469
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2026:0643
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2026:1886
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:0536
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2026:0536
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:1445
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2026:1494
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:1441
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2025:22571
Red Hat Enterprise Linux BaseOS EUS (v.9.4)Fixed RHSA-2026:0173
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2025:21933
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2026:1886
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2026:0536
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:1445
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:21917
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:22395
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2025:21469
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2025:22571
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:21920
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2026:1495
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:21920
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2025:22395
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2025:21469
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2026:1495
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:1443
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2025:22571
Red Hat Enterprise Linux Real Time EUS (v.9.4)Fixed RHSA-2026:0173
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2025:21933
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2025:22395
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2025:21469
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:1443
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2025:22571
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4)Fixed RHSA-2026:0173
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2025:21933
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:1581
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2026:1581
Red Hat Enterprise Linux for Real Time (v. 7 ELS)Fixed RHSA-2026:1623
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-39971
  2. 2026-10-03 Alias added: GHSA-h9cj-j3jc-97wc

References

Other 8

  • 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 21727 →

Sources

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