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Fencer Vulns
critical 9.8

CVE-2025-40252 in the critical feed json

net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()

published 2025-12-04 11 mo ago modified 2026-10-19 20 d ago also EUVD-2025-201205

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

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

net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()

The loops in 'qede_tpa_cont()' and 'qede_tpa_end()', iterate over 'cqe->len_list[]' using only a zero-length terminator as the stopping condition. If the terminator was missing or malformed, the loop could run past the end of the fixed-size array.

Add an explicit bound check using ARRAY_SIZE() in both loops to prevent a potential out-of-bounds access.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Patch / fix

  • Linux Linux 5.15.197, 6.1.159, 6.6.118, 6.12.60, 6.17.10, 6.18
  • Siemens RUGGEDCOM RST2428P V4.0
  • linux Debian 12 6.1.159-1
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.10-1

debian advisories DEBIAN-CVE-2025-40252

  • linux Ubuntu 22.04 LTS 5.15.0-173.183
  • linux Ubuntu 24.04 LTS 6.8.0-106.106
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1103.110
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1050.53
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1103.112
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1052.55

ubuntu advisories UBUNTU-CVE-2025-40252

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

  • kernel RHEL 8 4.18.0-553.123.1.el8_10
  • perf RHEL 8 4.18.0-553.123.1.el8_10
  • bpftool RHEL 8 4.18.0-553.123.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.123.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.123.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.123.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.123.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.123.1.el8_10

red hat advisories RHSA-2026:13577RHSA-2026:13578

  • kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-40.1
  • kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1
  • kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-39.1.21.16
  • kernel-rt Linux Micro 6.2 6.12.0-160000.9.1
  • kernel-64kb SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 6.12.0-160000.9.1

suse advisories SUSE-SU-2026:20845-1SUSE-SU-2026:20876-1SUSE-SU-2026:20477-1SUSE-SU-2026:20498-1SUSE-SU-2026:20207-1SUSE-SU-2026:20220-1

  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.9.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.9.1
  • kernel-default openSUSE Leap 16.0 6.12.0-160000.9.1

opensuse advisories openSUSE-SU-2026:20145-1

  • kernel AlmaLinux 8 4.18.0-553.123.1.el8_10
  • perf AlmaLinux 8 4.18.0-553.123.1.el8_10
  • bpftool AlmaLinux 8 4.18.0-553.123.1.el8_10
  • kernel-core AlmaLinux 8 4.18.0-553.123.1.el8_10
  • kernel-tools AlmaLinux 8 4.18.0-553.123.1.el8_10
  • python3-perf AlmaLinux 8 4.18.0-553.123.1.el8_10
  • kernel-modules AlmaLinux 8 4.18.0-553.123.1.el8_10
  • kernel-zfcpdump AlmaLinux 8 4.18.0-553.123.1.el8_10

almalinux advisories ALSA-2026:13577ALSA-2026:13578

  • kernel Rocky Linux 8 4.18.0-553.123.1.el8_10.cloud.0.1
  • kernel-rt Rocky Linux 8 4.18.0-553.123.1.rt7.464.el8_10
  • kernel Rocky Linux 8 4.18.0-553.123.1.el8_10

rocky linux advisories RXSA-2026:13577RLSA-2026:13578RLSA-2026:13577

  • kernel Azure Linux 3.0 6.6.119.3-1

azure linux advisories AZL-71393

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-2025-40252 updated cvss 4.7

kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more Red Hat Enterprise Linux 10 kernel
    affected: workaround, no fix available “To mitigate this issue, prevent the qede module from being loaded. See https://access.redhat.com/solutions/41278 for instructions on how to blacklist a kernel module.”
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.123.1.el8_10, kernel 4.18.0-553.123.1.el8_10, bpftool 4.18.0-553.123.1.el8_10, kernel-core 4.18.0-553.123.1.el8_10, kernel-tools 4.18.0-553.123.1.el8_10, python3-perf 4.18.0-553.123.1.el8_10, +15 more Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.123.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.123.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.123.1.el8_10
    fixed: vendor fix “To mitigate this issue, prevent the qede module from being loaded. See https://access.redhat.com/solutions/41278 for instructions on how to blacklist a kernel module.” RHSA-2026:13577
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-kvm 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-core 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-modules 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-kvm 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-core 4.18.0-553.123.1.rt7.464.el8_10, +4 more Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-core 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-modules 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-core 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-modules 4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-modules-extra 4.18.0-553.123.1.rt7.464.el8_10, +2 more
    fixed: vendor fix “To mitigate this issue, prevent the qede module from being loaded. See https://access.redhat.com/solutions/41278 for instructions on how to blacklist a kernel module.” RHSA-2026:13578
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 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
yes
Technical impact
total
Assessed
24 d ago

Exploit prediction

0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Linux Linux
  • Siemens RUGGEDCOM RST2428P

Classification

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.