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Fencer Vulns
critical 9.8

CVE-2025-68741 in the critical feed json

scsi: qla2xxx: Fix improper freeing of purex item

published 2025-12-24 10 mo ago modified 2026-10-13 27 d ago also EUVD-2025-205221

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

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

scsi: qla2xxx: Fix improper freeing of purex item

In qla2xxx_process_purls_iocb(), an item is allocated via qla27xx_copy_multiple_pkt(), which internally calls qla24xx_alloc_purex_item().

The qla24xx_alloc_purex_item() function may return a pre-allocated item from a per-adapter pool for small allocations, instead of dynamically allocating memory with kzalloc().

An error handling path in qla2xxx_process_purls_iocb() incorrectly uses kfree() to release the item. If the item was from the pre-allocated pool, calling kfree() on it is a bug that can lead to memory corruption.

Fix this by using the correct deallocation function, qla24xx_free_purex_item(), which properly handles both dynamically allocated and pre-allocated items.

Patch / fix

  • Linux Linux 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19
  • linux Debian 13 6.12.63-1
  • linux Debian 14 6.17.13-1

debian advisories DEBIAN-CVE-2025-68741

  • linux Ubuntu 24.04 LTS 6.8.0-110.110
  • linux Ubuntu 25.10 6.17.0-19.19
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1052.55
  • linux-aws Ubuntu 25.10 6.17.0-1009.9
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1054.57
  • linux-gcp Ubuntu 25.10 6.17.0-1009.9
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1050.56
  • linux-ibm Ubuntu 24.04 LTS 6.8.0-1051.51

ubuntu advisories UBUNTU-CVE-2025-68741

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 10.2 6.12.0-211.16.1.el10_2
  • rv RHEL 10.2 6.12.0-211.16.1.el10_2
  • perf RHEL 10.2 6.12.0-211.16.1.el10_2
  • rtla RHEL 10.2 6.12.0-211.16.1.el10_2
  • libperf RHEL 10.2 6.12.0-211.16.1.el10_2
  • kernel-rt RHEL 10.2 6.12.0-211.16.1.el10_2
  • kernel-64k RHEL 10.2 6.12.0-211.16.1.el10_2
  • kernel-core RHEL 10.2 6.12.0-211.16.1.el10_2

red hat advisories RHSA-2026:21209RHSA-2026:19569RHSA-2026:19568RHSA-2026:14339RHSA-2026:10996RHSA-2026:9264

  • kernel-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-syms-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-source-rt Real Time Module 15 SP7 6.4.0-150700.7.72.1
  • kernel-64kb SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
  • kernel-syms SLE Module for Development Tools 15 SP7 6.4.0-150700.53.78.1
  • kernel-azure SLE Module for Public Cloud 15 SP7 6.4.0-150700.53.78.1
  • kernel-source SLE Module for Development Tools 15 SP7, SLE Module for Basesystem 15 SP7 6.4.0-150700.53.78.1
  • kernel-default SLE Workstation Extension 15 SP7, SLE Module for Legacy 15 SP7, SLE Module for Basesystem 15 SP7 +2 more 6.4.0-150700.53.78.1

suse advisories SUSE-SU-2026:5121-1SUSE-SU-2026:3810-1SUSE-SU-2026:3790-1SUSE-SU-2026:23244-1SUSE-SU-2026:23241-1SUSE-SU-2026:23194-1

  • kernel-source-longterm openSUSE Tumbleweed 6.18.16-1.1
  • kernel-rt openSUSE Leap 16.0 6.12.0-160000.26.1
  • dtb-aarch64 openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-64kb openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-syms openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-azure openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-obs-qa openSUSE Leap 16.0 6.12.0-160000.26.1
  • kernel-source openSUSE Leap 16.0 6.12.0-160000.26.1

opensuse advisories openSUSE-SU-2026:10301-1openSUSE-SU-2026:20287-1openSUSE-SU-2026:10039-1

  • kernel AlmaLinux 9 5.14.0-687.10.1.el9_8
  • rv AlmaLinux 9 5.14.0-687.10.1.el9_8
  • perf AlmaLinux 9 5.14.0-687.10.1.el9_8
  • rtla AlmaLinux 9 5.14.0-687.10.1.el9_8
  • libperf AlmaLinux 9 5.14.0-687.10.1.el9_8
  • kernel-rt AlmaLinux 9 5.14.0-687.10.1.el9_8
  • kernel-64k AlmaLinux 9 5.14.0-687.10.1.el9_8
  • kernel-core AlmaLinux 9 5.14.0-687.10.1.el9_8

almalinux advisories ALSA-2026:19568ALSA-2026:19569ALSA-2026:9264ALSA-2026:8921ALSA-2026:9131ALSA-2026:9135

  • kernel Rocky Linux 10 6.12.0-211.16.1.el10_2.0.1
  • kernel Rocky Linux 9 5.14.0-687.10.1.el9_8.0.1
  • kernel Rocky Linux 10 6.12.0-124.52.1.el10_1
  • kernel Rocky Linux 9 5.14.0-611.49.1.el9_7
  • kernel-rt Rocky Linux 8 4.18.0-553.120.1.rt7.461.el8_10
  • kernel Rocky Linux 8 4.18.0-553.120.1.el8_10

rocky linux advisories RLSA-2026:19569RLSA-2026:19568RLSA-2026:9264RLSA-2026:8921RLSA-2026:9135RLSA-2026:9131

  • kernel Azure Linux 3.0 6.6.121.1-1

azure linux advisories AZL-73069

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-2025-68741 updated cvss 7.3

kernel: scsi: qla2xxx: Fix improper freeing of purex item

  • Red Hat CodeReady Linux Builder EUS (v.9.4) libperf 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.127.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.127.1.el9_4
    fixed: vendor fix RHSA-2026:21209
  • Red Hat CodeReady Linux Builder EUS (v.9.6) libperf 5.14.0-570.112.1.el9_6, kernel-debuginfo-common-s390x 5.14.0-570.112.1.el9_6, kernel-debuginfo-common-x86_64 5.14.0-570.112.1.el9_6, kernel-debuginfo-common-aarch64 5.14.0-570.112.1.el9_6, kernel-debuginfo-common-ppc64le 5.14.0-570.112.1.el9_6
    fixed: vendor fix RHSA-2026:14339
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-611.49.1.el9_7, rv 5.14.0-687.10.1.el9_8, perf 5.14.0-611.49.1.el9_7, perf 5.14.0-687.10.1.el9_8, rtla 5.14.0-611.49.1.el9_7, rtla 5.14.0-687.10.1.el9_8, +20 more
    fixed: vendor fix RHSA-2026:8921
  • Red Hat Enterprise Linux AppStream (v. 10) rv 6.12.0-124.52.1.el10_1, rv 6.12.0-211.16.1.el10_2, perf 6.12.0-124.52.1.el10_1, perf 6.12.0-211.16.1.el10_2, rtla 6.12.0-124.52.1.el10_1, rtla 6.12.0-211.16.1.el10_2, +20 more
    fixed: vendor fix RHSA-2026:9264
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) rv 6.12.0-55.70.1.el10_0, perf 6.12.0-55.70.1.el10_0, rtla 6.12.0-55.70.1.el10_0, python3-perf 6.12.0-55.70.1.el10_0, kernel-devel-matched 6.12.0-55.70.1.el10_0, kernel-64k-devel-matched 6.12.0-55.70.1.el10_0, +7 more
    fixed: vendor fix RHSA-2026:10996
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) rv 5.14.0-427.127.1.el9_4, perf 5.14.0-427.127.1.el9_4, rtla 5.14.0-427.127.1.el9_4, kernel-devel-matched 5.14.0-427.127.1.el9_4, kernel-64k-devel-matched 5.14.0-427.127.1.el9_4, kernel-debug-devel-matched 5.14.0-427.127.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) rv 5.14.0-570.112.1.el9_6, perf 5.14.0-570.112.1.el9_6, rtla 5.14.0-570.112.1.el9_6, python3-perf 5.14.0-570.112.1.el9_6, kernel-devel-matched 5.14.0-570.112.1.el9_6, kernel-64k-devel-matched 5.14.0-570.112.1.el9_6, +7 more
    fixed: vendor fix RHSA-2026:14339
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.120.1.el8_10, kernel 4.18.0-553.120.1.el8_10, bpftool 4.18.0-553.120.1.el8_10, kernel-core 4.18.0-553.120.1.el8_10, kernel-tools 4.18.0-553.120.1.el8_10, python3-perf 4.18.0-553.120.1.el8_10, +15 more
    fixed: vendor fix RHSA-2026:9131
show 22 more
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-611.49.1.el9_7, kernel 5.14.0-687.10.1.el9_8, kernel-64k 5.14.0-611.49.1.el9_7, kernel-64k 5.14.0-687.10.1.el9_8, kernel-core 5.14.0-611.49.1.el9_7, kernel-core 5.14.0-687.10.1.el9_8, +60 more
    fixed: vendor fix RHSA-2026:8921
  • Red Hat Enterprise Linux BaseOS (v. 10) kernel 6.12.0-124.52.1.el10_1, kernel 6.12.0-211.16.1.el10_2, kernel-64k 6.12.0-124.52.1.el10_1, kernel-64k 6.12.0-211.16.1.el10_2, kernel-core 6.12.0-124.52.1.el10_1, kernel-core 6.12.0-211.16.1.el10_2, +62 more
    fixed: vendor fix RHSA-2026:9264
  • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel 6.12.0-55.70.1.el10_0, kernel-64k 6.12.0-55.70.1.el10_0, kernel-core 6.12.0-55.70.1.el10_0, kernel-tools 6.12.0-55.70.1.el10_0, kernel-modules 6.12.0-55.70.1.el10_0, kernel-64k-core 6.12.0-55.70.1.el10_0, +27 more
    fixed: vendor fix RHSA-2026:10996
  • Red Hat Enterprise Linux BaseOS EUS (v.9.4) bpftool 7.3.0-427.127.1.el9_4, kernel 5.14.0-427.127.1.el9_4, kernel-64k 5.14.0-427.127.1.el9_4, kernel-core 5.14.0-427.127.1.el9_4, kernel-tools 5.14.0-427.127.1.el9_4, python3-perf 5.14.0-427.127.1.el9_4, +28 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel 5.14.0-570.112.1.el9_6, kernel-64k 5.14.0-570.112.1.el9_6, kernel-core 5.14.0-570.112.1.el9_6, kernel-tools 5.14.0-570.112.1.el9_6, kernel-modules 5.14.0-570.112.1.el9_6, kernel-64k-core 5.14.0-570.112.1.el9_6, +27 more
    fixed: vendor fix RHSA-2026:14339
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) libperf 5.14.0-611.49.1.el9_7, libperf 5.14.0-687.10.1.el9_8, kernel-debuginfo-common-s390x 5.14.0-611.49.1.el9_7, kernel-debuginfo-common-s390x 5.14.0-687.10.1.el9_8, kernel-debuginfo-common-x86_64 5.14.0-611.49.1.el9_7, kernel-debuginfo-common-x86_64 5.14.0-687.10.1.el9_8, +4 more
    fixed: vendor fix RHSA-2026:8921
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) libperf 6.12.0-124.52.1.el10_1, libperf 6.12.0-211.16.1.el10_2, kernel-debuginfo-common-s390x 6.12.0-124.52.1.el10_1, kernel-debuginfo-common-s390x 6.12.0-211.16.1.el10_2, kernel-debuginfo-common-x86_64 6.12.0-124.52.1.el10_1, kernel-debuginfo-common-x86_64 6.12.0-211.16.1.el10_2, +4 more
    fixed: vendor fix RHSA-2026:9264
  • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) libperf 6.12.0-55.70.1.el10_0, kernel-debuginfo-common-s390x 6.12.0-55.70.1.el10_0, kernel-debuginfo-common-x86_64 6.12.0-55.70.1.el10_0, kernel-debuginfo-common-aarch64 6.12.0-55.70.1.el10_0, kernel-debuginfo-common-ppc64le 6.12.0-55.70.1.el10_0
    fixed: vendor fix RHSA-2026:10996
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.120.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.120.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.120.1.el8_10
    fixed: vendor fix RHSA-2026:9131
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-kvm 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-core 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-modules 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-kvm 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-core 4.18.0-553.120.1.rt7.461.el8_10, +4 more
    fixed: vendor fix RHSA-2026:9135
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-611.49.1.el9_7, kernel-rt 5.14.0-687.10.1.el9_8, kernel-rt-64k 5.14.0-611.49.1.el9_7, kernel-rt-64k 5.14.0-687.10.1.el9_8, kernel-rt-core 5.14.0-611.49.1.el9_7, kernel-rt-core 5.14.0-687.10.1.el9_8, +34 more
    fixed: vendor fix RHSA-2026:8921
  • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt 6.12.0-124.52.1.el10_1, kernel-rt 6.12.0-211.16.1.el10_2, kernel-rt-64k 6.12.0-124.52.1.el10_1, kernel-rt-64k 6.12.0-211.16.1.el10_2, kernel-rt-core 6.12.0-124.52.1.el10_1, kernel-rt-core 6.12.0-211.16.1.el10_2, +34 more
    fixed: vendor fix RHSA-2026:9264
  • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt 6.12.0-55.70.1.el10_0, kernel-rt-64k 6.12.0-55.70.1.el10_0, kernel-rt-core 6.12.0-55.70.1.el10_0, kernel-rt-modules 6.12.0-55.70.1.el10_0, kernel-rt-64k-core 6.12.0-55.70.1.el10_0, kernel-rt-debug-core 6.12.0-55.70.1.el10_0, +14 more
    fixed: vendor fix RHSA-2026:10996
  • Red Hat Enterprise Linux Real Time EUS (v.9.4) kernel-rt 5.14.0-427.127.1.el9_4, kernel-rt-core 5.14.0-427.127.1.el9_4, kernel-rt-modules 5.14.0-427.127.1.el9_4, kernel-rt-debug-core 5.14.0-427.127.1.el9_4, kernel-rt-modules-core 5.14.0-427.127.1.el9_4, kernel-rt-debug-modules 5.14.0-427.127.1.el9_4, +4 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt 5.14.0-570.112.1.el9_6, kernel-rt-64k 5.14.0-570.112.1.el9_6, kernel-rt-core 5.14.0-570.112.1.el9_6, kernel-rt-modules 5.14.0-570.112.1.el9_6, kernel-rt-64k-core 5.14.0-570.112.1.el9_6, kernel-rt-debug-core 5.14.0-570.112.1.el9_6, +14 more
    fixed: vendor fix RHSA-2026:14339
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-611.49.1.el9_7, kernel-rt 5.14.0-687.10.1.el9_8, kernel-rt-core 5.14.0-611.49.1.el9_7, kernel-rt-core 5.14.0-687.10.1.el9_8, kernel-rt-modules 5.14.0-611.49.1.el9_7, kernel-rt-modules 5.14.0-687.10.1.el9_8, +14 more
    fixed: vendor fix RHSA-2026:8921
  • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt 6.12.0-124.52.1.el10_1, kernel-rt 6.12.0-211.16.1.el10_2, kernel-rt-core 6.12.0-124.52.1.el10_1, kernel-rt-core 6.12.0-211.16.1.el10_2, kernel-rt-modules 6.12.0-124.52.1.el10_1, kernel-rt-modules 6.12.0-211.16.1.el10_2, +14 more
    fixed: vendor fix RHSA-2026:9264
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt 6.12.0-55.70.1.el10_0, kernel-rt-kvm 6.12.0-55.70.1.el10_0, kernel-rt-core 6.12.0-55.70.1.el10_0, kernel-rt-modules 6.12.0-55.70.1.el10_0, kernel-rt-debug-kvm 6.12.0-55.70.1.el10_0, kernel-rt-debug-core 6.12.0-55.70.1.el10_0, +6 more
    fixed: vendor fix RHSA-2026:10996
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.4) kernel-rt 5.14.0-427.127.1.el9_4, kernel-rt-kvm 5.14.0-427.127.1.el9_4, kernel-rt-core 5.14.0-427.127.1.el9_4, kernel-rt-modules 5.14.0-427.127.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.127.1.el9_4, kernel-rt-debug-core 5.14.0-427.127.1.el9_4, +6 more
    fixed: vendor fix RHSA-2026:21209
  • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt 5.14.0-570.112.1.el9_6, kernel-rt-kvm 5.14.0-570.112.1.el9_6, kernel-rt-core 5.14.0-570.112.1.el9_6, kernel-rt-modules 5.14.0-570.112.1.el9_6, kernel-rt-debug-kvm 5.14.0-570.112.1.el9_6, kernel-rt-debug-core 5.14.0-570.112.1.el9_6, +6 more
    fixed: vendor fix RHSA-2026:14339
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-core 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-modules 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-core 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-debug-modules 4.18.0-553.120.1.rt7.461.el8_10, kernel-rt-modules-extra 4.18.0-553.120.1.rt7.461.el8_10, +2 more
    fixed: vendor fix RHSA-2026:9135
  • 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
partial
Assessed
4 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% 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

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.