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Fencer Vulns
high 7.8

CVE-2026-46145 json

RDMA/mana: Validate rx_hash_key_len

published 2026-05-28 5 mo ago modified 2026-10-19 20 d ago also EUVD-2026-32772

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

In the Linux kernel, the following vulnerability has been resolved:

RDMA/mana: Validate rx_hash_key_len

Sashiko points out that rx_hash_key_len comes from a uAPI structure and is blindly passed to memcpy, allowing the userspace to trash kernel memory. Bounds check it so the memcpy cannot overflow.

Patch / fix

  • Linux Linux 6.6.141, 6.12.88, 6.18.30, 7.0.7, 7.1
  • Red Hat Red Hat Enterprise Linux 10 0:6.12.0-211.28.1.el10_2
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:6.12.0-55.103.1.el10_0
  • Red Hat Red Hat Enterprise Linux 8 0:4.18.0-553.136.1.el8_10, 0:4.18.0-553.136.1.rt7.477.el8_10
  • Red Hat Red Hat Enterprise Linux 9 0:5.14.0-687.17.1.el9_8
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions 0:5.14.0-427.149.1.el9_4
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:5.14.0-570.138.1.el9_6
  • linux Debian 13 6.12.88-1
  • linux Debian 14 7.0.7-1

debian advisories DEBIAN-CVE-2026-46145

  • linux Ubuntu 24.04 LTS 6.8.0-136.136
  • linux Ubuntu 26.04 LTS 7.0.0-28.28
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1061.64
  • linux-aws Ubuntu 26.04 LTS 7.0.0-1009.9
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1064.72
  • linux-gcp Ubuntu 26.04 LTS 7.0.0-1008.8
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1059.67
  • linux-gke Ubuntu 26.04 LTS 7.0.0-1003.4

ubuntu advisories UBUNTU-CVE-2026-46145

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kpatch-patch-6_12_0-211_16_1 RHEL 10.2 1-9.el10_2
  • kpatch-patch-6_12_0-211_49_1 RHEL 10.2 1-1.el10_2
  • kpatch-patch-5_14_0-687_10_1 RHEL 9 1-9.el9_8
  • kpatch-patch-4_18_0-553_85_1 RHEL 8 1-14.el8_10
  • kpatch-patch-4_18_0-553_72_1 RHEL 8 1-16.el8_10
  • kpatch-patch-4_18_0-553_109_1 RHEL 8 1-12.el8_10
  • kpatch-patch-4_18_0-553_125_1 RHEL 8 1-9.el8_10
  • kpatch-patch-4_18_0-553_158_1 RHEL 8 1-1.el8_10

red hat advisories RHSA-2026:72831RHSA-2026:72832RHSA-2026:72830RHSA-2026:72630RHSA-2026:72629RHSA-2026:65712

  • kernel-default SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Live Patching 15 SP6 +1 more 6.4.0-150600.23.130.1
  • kernel-64kb SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS, SLE High Performance Computing 15 SP5-ESPOS 5.14.21-150500.55.182.1
  • kernel-syms SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.182.1
  • kernel-source SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.182.1
  • kernel-default SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +3 more 5.14.21-150500.55.182.1
  • kernel-obs-build SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE High Performance Computing 15 SP5-LTSS +1 more 5.14.21-150500.55.182.1
  • kernel-default-base SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 5.14.21-150500.55.182.1.150500.6.85.2
  • kernel-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1

suse advisories SUSE-SU-2026:3602-1SUSE-SU-2026:3595-1SUSE-SU-2026:3810-1SUSE-SU-2026:3790-1SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.37.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.37.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.37.1

opensuse advisories openSUSE-SU-2026:21555-1openSUSE-SU-2026:10954-1

  • kernel AlmaLinux 10 6.12.0-211.28.1.el10_2
  • rv AlmaLinux 10 6.12.0-211.28.1.el10_2
  • perf AlmaLinux 10 6.12.0-211.28.1.el10_2
  • rtla AlmaLinux 10 6.12.0-211.28.1.el10_2
  • libperf AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-rt AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-64k AlmaLinux 10 6.12.0-211.28.1.el10_2
  • kernel-core AlmaLinux 10 6.12.0-211.28.1.el10_2

almalinux advisories ALSA-2026:30129ALSA-2026:27789ALSA-2026:27353ALSA-2026:27354

  • kernel Rocky Linux 10 6.12.0-211.28.1.el10_2
  • kernel Rocky Linux 9 5.14.0-687.17.1.el9_8
  • kernel Rocky Linux 8 4.18.0-553.136.1.el8_10
  • kernel-rt Rocky Linux 8 4.18.0-553.136.1.rt7.477.el8_10

rocky linux advisories RLSA-2026:30129RLSA-2026:27789RLSA-2026:27353RLSA-2026:27354

  • kernel Azure Linux 3.0 6.6.141.1-1

azure linux advisories AZL-88866

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-46145 updated cvss 7.0

kernel: RDMA/mana: Validate rx_hash_key_len

  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.138.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.138.1.el9_6
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-687.17.1.el9_8, perf 5.14.0-687.17.1.el9_8, rtla 5.14.0-687.17.1.el9_8, python3-perf 5.14.0-687.17.1.el9_8, kernel-devel-matched 5.14.0-687.17.1.el9_8, kernel-64k-devel-matched 5.14.0-687.17.1.el9_8, +7 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-211.28.1.el10_2, perf 6.12.0-211.28.1.el10_2, rtla 6.12.0-211.28.1.el10_2, python3-perf 6.12.0-211.28.1.el10_2, kernel-devel-matched 6.12.0-211.28.1.el10_2, kernel-64k-devel-matched 6.12.0-211.28.1.el10_2, +7 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) rv 5.14.0-427.149.1.el9_4, perf 5.14.0-427.149.1.el9_4, rtla 5.14.0-427.149.1.el9_4, kernel-devel-matched 5.14.0-427.149.1.el9_4, kernel-64k-devel-matched 5.14.0-427.149.1.el9_4, kernel-debug-devel-matched 5.14.0-427.149.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:65712
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.103.1.el10_0, perf 6.12.0-55.103.1.el10_0, rtla 6.12.0-55.103.1.el10_0, python3-perf 6.12.0-55.103.1.el10_0, kernel-devel-matched 6.12.0-55.103.1.el10_0, kernel-64k-devel-matched 6.12.0-55.103.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:64767
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.138.1.el9_6, perf 5.14.0-570.138.1.el9_6, rtla 5.14.0-570.138.1.el9_6, python3-perf 5.14.0-570.138.1.el9_6, kernel-devel-matched 5.14.0-570.138.1.el9_6, kernel-64k-devel-matched 5.14.0-570.138.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.136.1.el8_10, kernel 4.18.0-553.136.1.el8_10, bpftool 4.18.0-553.136.1.el8_10, kernel-core 4.18.0-553.136.1.el8_10, kernel-tools 4.18.0-553.136.1.el8_10, python3-perf 4.18.0-553.136.1.el8_10, +20 more
    fixed: vendor fix RHSA-2026:27353
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-687.17.1.el9_8, kernel-64k 5.14.0-687.17.1.el9_8, kernel-core 5.14.0-687.17.1.el9_8, kernel-tools 5.14.0-687.17.1.el9_8, kernel-modules 5.14.0-687.17.1.el9_8, kernel-64k-core 5.14.0-687.17.1.el9_8, +28 more
    fixed: vendor fix RHSA-2026:27789
show 21 more
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-211.28.1.el10_2, kernel-64k 6.12.0-211.28.1.el10_2, kernel-core 6.12.0-211.28.1.el10_2, kernel-tools 6.12.0-211.28.1.el10_2, kernel-modules 6.12.0-211.28.1.el10_2, kernel-64k-core 6.12.0-211.28.1.el10_2, +30 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool 7.3.0-427.149.1.el9_4, kernel 5.14.0-427.149.1.el9_4, kernel-64k 5.14.0-427.149.1.el9_4, kernel-core 5.14.0-427.149.1.el9_4, kernel-tools 5.14.0-427.149.1.el9_4, python3-perf 5.14.0-427.149.1.el9_4, +33 more
    fixed: vendor fix RHSA-2026:65712
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.103.1.el10_0, kernel-64k 6.12.0-55.103.1.el10_0, kernel-core 6.12.0-55.103.1.el10_0, kernel-tools 6.12.0-55.103.1.el10_0, kernel-modules 6.12.0-55.103.1.el10_0, kernel-64k-core 6.12.0-55.103.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:64767
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.138.1.el9_6, kernel-64k 5.14.0-570.138.1.el9_6, kernel-core 5.14.0-570.138.1.el9_6, kernel-tools 5.14.0-570.138.1.el9_6, kernel-modules 5.14.0-570.138.1.el9_6, kernel-64k-core 5.14.0-570.138.1.el9_6, +32 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-aarch64 5.14.0-687.17.1.el9_8, kernel-debuginfo-common-ppc64le 5.14.0-687.17.1.el9_8
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-aarch64 6.12.0-211.28.1.el10_2, kernel-debuginfo-common-ppc64le 6.12.0-211.28.1.el10_2
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.103.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.103.1.el10_0
    fixed: vendor fix RHSA-2026:64767
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.136.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.136.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.136.1.el8_10
    fixed: vendor fix RHSA-2026:27353
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-kvm 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-kvm 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-core 4.18.0-553.136.1.rt7.477.el8_10, +4 more
    fixed: vendor fix RHSA-2026:27354
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-64k 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-64k-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-211.28.1.el10_2, kernel-rt-64k 6.12.0-211.28.1.el10_2, kernel-rt-core 6.12.0-211.28.1.el10_2, kernel-rt-modules 6.12.0-211.28.1.el10_2, kernel-rt-64k-core 6.12.0-211.28.1.el10_2, kernel-rt-debug-core 6.12.0-211.28.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt 5.14.0-427.149.1.el9_4, kernel-rt-core 5.14.0-427.149.1.el9_4, kernel-rt-modules 5.14.0-427.149.1.el9_4, kernel-rt-debug-core 5.14.0-427.149.1.el9_4, kernel-rt-modules-core 5.14.0-427.149.1.el9_4, kernel-rt-debug-modules 5.14.0-427.149.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:65712
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.103.1.el10_0, kernel-rt-64k 6.12.0-55.103.1.el10_0, kernel-rt-core 6.12.0-55.103.1.el10_0, kernel-rt-modules 6.12.0-55.103.1.el10_0, kernel-rt-64k-core 6.12.0-55.103.1.el10_0, kernel-rt-debug-core 6.12.0-55.103.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:64767
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.138.1.el9_6, kernel-rt-64k 5.14.0-570.138.1.el9_6, kernel-rt-core 5.14.0-570.138.1.el9_6, kernel-rt-modules 5.14.0-570.138.1.el9_6, kernel-rt-64k-core 5.14.0-570.138.1.el9_6, kernel-rt-debug-core 5.14.0-570.138.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-687.17.1.el9_8, kernel-rt-core 5.14.0-687.17.1.el9_8, kernel-rt-modules 5.14.0-687.17.1.el9_8, kernel-rt-debug-core 5.14.0-687.17.1.el9_8, kernel-rt-modules-core 5.14.0-687.17.1.el9_8, kernel-rt-debug-modules 5.14.0-687.17.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:27789
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-211.28.1.el10_2, kernel-rt-core 6.12.0-211.28.1.el10_2, kernel-rt-modules 6.12.0-211.28.1.el10_2, kernel-rt-debug-core 6.12.0-211.28.1.el10_2, kernel-rt-modules-core 6.12.0-211.28.1.el10_2, kernel-rt-debug-modules 6.12.0-211.28.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:30129
  • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt 5.14.0-427.149.1.el9_4, kernel-rt-kvm 5.14.0-427.149.1.el9_4, kernel-rt-core 5.14.0-427.149.1.el9_4, kernel-rt-modules 5.14.0-427.149.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.149.1.el9_4, kernel-rt-debug-core 5.14.0-427.149.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:65712
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.103.1.el10_0, kernel-rt-kvm 6.12.0-55.103.1.el10_0, kernel-rt-core 6.12.0-55.103.1.el10_0, kernel-rt-modules 6.12.0-55.103.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.103.1.el10_0, kernel-rt-debug-core 6.12.0-55.103.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:64767
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.138.1.el9_6, kernel-rt-kvm 5.14.0-570.138.1.el9_6, kernel-rt-core 5.14.0-570.138.1.el9_6, kernel-rt-modules 5.14.0-570.138.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.138.1.el9_6, kernel-rt-debug-core 5.14.0-570.138.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:62568
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-core 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-debug-modules 4.18.0-553.136.1.rt7.477.el8_10, kernel-rt-modules-extra 4.18.0-553.136.1.rt7.477.el8_10, +2 more
    fixed: vendor fix RHSA-2026:27354
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 kernel-rt, kernel-rt-kvm, kernel-rt-core, kernel-rt-modules, kernel-rt-debug-kvm, kernel-rt-debug-core, +12 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 d ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA ADP 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux
  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7

Classification

Weakness
  • CWE-787 Out-of-bounds Write
  • CWE-120 Buffer Copy without Checking Size of Input
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.