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Fencer Vulns
high 7.8

CVE-2024-26974 json

crypto: qat - resolve race condition during AER recovery

published 2024-05-01 2 y ago modified 2026-10-15 25 d ago also EUVD-2024-24236

cvss
7.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

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

crypto: qat - resolve race condition during AER recovery

During the PCI AER system's error recovery process, the kernel driver may encounter a race condition with freeing the reset_data structure's memory. If the device restart will take more than 10 seconds the function scheduling that restart will exit due to a timeout, and the reset_data structure will be freed. However, this data structure is used for completion notification after the restart is completed, which leads to a UAF bug.

This results in a KFENCE bug notice.

BUG: KFENCE: use-after-free read in adf_device_reset_worker+0x38/0xa0 [intel_qat] Use-after-free read at 0x00000000bc56fddf (in kfence-#142): adf_device_reset_worker+0x38/0xa0 [intel_qat] process_one_work+0x173/0x340

To resolve this race condition, the memory associated to the container of the work_struct is freed on the worker if the timeout expired, otherwise on the function that schedules the worker. The timeout detection can be done by checking if the caller is still waiting for completion or not by using completion_done() function.

Patch / fix

  • Linux Linux 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3, 6.9
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
  • linux Debian 12 6.1.85-1
  • linux Debian 14, Debian 13 6.7.12-1

debian advisories DEBIAN-CVE-2024-26974

  • linux Ubuntu 20.04 LTS 5.4.0-189.209
  • linux Ubuntu 22.04 LTS 5.15.0-116.126
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1128.138
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1065.71
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1132.141
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1064.72
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1062.68
  • linux-ibm Ubuntu 20.04 LTS 5.4.0-1075.80

ubuntu advisories UBUNTU-CVE-2024-26974

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 4.18.0-553.8.1.el8_10
  • perf RHEL 8 4.18.0-553.8.1.el8_10
  • bpftool RHEL 8 4.18.0-553.8.1.el8_10
  • kernel-core RHEL 8 4.18.0-553.8.1.el8_10
  • kernel-tools RHEL 8 4.18.0-553.8.1.el8_10
  • python3-perf RHEL 8 4.18.0-553.8.1.el8_10
  • kernel-modules RHEL 8 4.18.0-553.8.1.el8_10
  • kernel-zfcpdump RHEL 8 4.18.0-553.8.1.el8_10

red hat advisories RHSA-2024:6206RHSA-2024:4211RHSA-2024:6745RHSA-2024:6744RHSA-2024:4352RHSA-2024:4349

  • kernel-rt Linux Micro 6.0 6.4.0-9.1
  • kernel-source-rt Linux Micro 6.0 6.4.0-9.1
  • kernel-source Linux Micro 6.0 6.4.0-18.1
  • kernel-default Linux Micro 6.0 6.4.0-18.1
  • kernel-kvmsmall Linux Micro 6.0 6.4.0-18.1
  • kernel-default-base Linux Micro 6.0 6.4.0-17.1.1.51
  • dtb-aarch64 openSUSE Leap 15.5 5.14.21-150500.55.68.1
  • kernel-64kb SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 5.14.21-150500.55.68.1

suse advisories SUSE-SU-2025:02846-1SUSE-SU-2025:20028-1SUSE-SU-2025:20008-1SUSE-SU-2024:2190-1SUSE-SU-2024:2019-1SUSE-SU-2024:2008-1

  • kernel AlmaLinux 9 5.14.0-427.24.1.el9_4
  • rv AlmaLinux 9 5.14.0-427.24.1.el9_4
  • perf AlmaLinux 9 5.14.0-427.24.1.el9_4
  • rtla AlmaLinux 9 5.14.0-427.24.1.el9_4
  • bpftool AlmaLinux 9 7.3.0-427.24.1.el9_4
  • libperf AlmaLinux 9 5.14.0-427.24.1.el9_4
  • kernel-rt AlmaLinux 9 5.14.0-427.24.1.el9_4
  • kernel-64k AlmaLinux 9 5.14.0-427.24.1.el9_4

almalinux advisories ALSA-2024:4349ALSA-2024:4352ALSA-2024:4211

  • kernel Rocky Linux 9 5.14.0-427.24.1.el9_4.cloud.3.0
  • kernel Rocky Linux 9 5.14.0-427.24.1.el9_4
  • kernel-rt Rocky Linux 8 4.18.0-553.8.1.rt7.349.el8_10
  • kernel Rocky Linux 8 4.18.0-553.8.1.el8_10

rocky linux advisories RXSA-2024:4349RLSA-2024:4349RLSA-2024:4352RLSA-2024:4211

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-2024-26974 updated cvss 5.8

kernel: crypto: qat - resolve race condition during AER recovery

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    affected: no fix planned “Out of support scope”
  • 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
    affected: no fix available
  • Red Hat CodeReady Linux Builder EUS (v.8.8) kernel-debuginfo-common-x86_64 4.18.0-477.70.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.70.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.70.1.el8_8
    fixed: vendor fix RHSA-2024:6206
  • Red Hat CodeReady Linux Builder EUS (v.9.2) kernel-debuginfo-common-s390x 5.14.0-284.84.1.el9_2, kernel-debuginfo-common-x86_64 5.14.0-284.84.1.el9_2, kernel-debuginfo-common-aarch64 5.14.0-284.84.1.el9_2, kernel-debuginfo-common-ppc64le 5.14.0-284.84.1.el9_2
    fixed: vendor fix RHSA-2024:6744
  • Red Hat Enterprise Linux AppStream (v. 9) rv 5.14.0-427.24.1.el9_4, perf 5.14.0-427.24.1.el9_4, rtla 5.14.0-427.24.1.el9_4, kernel-devel-matched 5.14.0-427.24.1.el9_4, kernel-64k-devel-matched 5.14.0-427.24.1.el9_4, kernel-debug-devel-matched 5.14.0-427.24.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:4349
  • Red Hat Enterprise Linux AppStream EUS (v.9.2) perf 5.14.0-284.84.1.el9_2, rtla 5.14.0-284.84.1.el9_2, kernel-devel-matched 5.14.0-284.84.1.el9_2, kernel-64k-devel-matched 5.14.0-284.84.1.el9_2, kernel-debug-devel-matched 5.14.0-284.84.1.el9_2, kernel-debuginfo-common-s390x 5.14.0-284.84.1.el9_2, +5 more
    fixed: vendor fix RHSA-2024:6744
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-553.8.1.el8_10, kernel 4.18.0-553.8.1.el8_10, bpftool 4.18.0-553.8.1.el8_10, kernel-core 4.18.0-553.8.1.el8_10, kernel-tools 4.18.0-553.8.1.el8_10, python3-perf 4.18.0-553.8.1.el8_10, +15 more
    fixed: vendor fix RHSA-2024:4211
  • Red Hat Enterprise Linux BaseOS (v. 9) bpftool 7.3.0-427.24.1.el9_4, kernel 5.14.0-427.24.1.el9_4, kernel-64k 5.14.0-427.24.1.el9_4, kernel-core 5.14.0-427.24.1.el9_4, kernel-tools 5.14.0-427.24.1.el9_4, python3-perf 5.14.0-427.24.1.el9_4, +28 more
    fixed: vendor fix RHSA-2024:4349
show 10 more
  • Red Hat Enterprise Linux BaseOS EUS (v.8.8) perf 4.18.0-477.70.1.el8_8, kernel 4.18.0-477.70.1.el8_8, bpftool 4.18.0-477.70.1.el8_8, kernel-core 4.18.0-477.70.1.el8_8, kernel-tools 4.18.0-477.70.1.el8_8, python3-perf 4.18.0-477.70.1.el8_8, +15 more
    fixed: vendor fix RHSA-2024:6206
  • Red Hat Enterprise Linux BaseOS EUS (v.9.2) bpftool 7.0.0-284.84.1.el9_2, kernel 5.14.0-284.84.1.el9_2, kernel-64k 5.14.0-284.84.1.el9_2, kernel-core 5.14.0-284.84.1.el9_2, kernel-tools 5.14.0-284.84.1.el9_2, python3-perf 5.14.0-284.84.1.el9_2, +28 more
    fixed: vendor fix RHSA-2024:6744
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-aarch64 4.18.0-553.8.1.el8_10, kernel-debuginfo-common-ppc64le 4.18.0-553.8.1.el8_10
    fixed: vendor fix RHSA-2024:4211
  • Red Hat Enterprise Linux CRB (v. 9) libperf 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-s390x 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-x86_64 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-aarch64 5.14.0-427.24.1.el9_4, kernel-debuginfo-common-ppc64le 5.14.0-427.24.1.el9_4
    fixed: vendor fix RHSA-2024:4349
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-kvm 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, +4 more
    fixed: vendor fix RHSA-2024:4352
  • Red Hat Enterprise Linux NFV (v. 9) kernel-rt 5.14.0-427.24.1.el9_4, kernel-rt-kvm 5.14.0-427.24.1.el9_4, kernel-rt-core 5.14.0-427.24.1.el9_4, kernel-rt-modules 5.14.0-427.24.1.el9_4, kernel-rt-debug-kvm 5.14.0-427.24.1.el9_4, kernel-rt-debug-core 5.14.0-427.24.1.el9_4, +6 more
    fixed: vendor fix RHSA-2024:4349
  • Red Hat Enterprise Linux Real Time EUS (v.9.2) kernel-rt 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-core 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-modules 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-core 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-modules-core 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-modules 5.14.0-284.84.1.rt14.369.el9_2, +4 more Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) kernel-rt 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-kvm 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-core 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-modules 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-kvm 5.14.0-284.84.1.rt14.369.el9_2, kernel-rt-debug-core 5.14.0-284.84.1.rt14.369.el9_2, +6 more
    fixed: vendor fix RHSA-2024:6745
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-core 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-debug-modules 4.18.0-553.8.1.rt7.349.el8_10, kernel-rt-modules-extra 4.18.0-553.8.1.rt7.349.el8_10, +2 more
    fixed: vendor fix RHSA-2024:4352
  • Red Hat Enterprise Linux RT (v. 9) kernel-rt 5.14.0-427.24.1.el9_4, kernel-rt-core 5.14.0-427.24.1.el9_4, kernel-rt-modules 5.14.0-427.24.1.el9_4, kernel-rt-debug-core 5.14.0-427.24.1.el9_4, kernel-rt-modules-core 5.14.0-427.24.1.el9_4, kernel-rt-debug-modules 5.14.0-427.24.1.el9_4, +4 more
    fixed: vendor fix RHSA-2024:4349
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux AppStream EUS (v.9.2) kernel-doc 5.14.0-284.84.1.el9_2 Red Hat Enterprise Linux BaseOS (v. 8) kernel-headers 4.18.0-553.8.1.el8_10, kernel-cross-headers 4.18.0-553.8.1.el8_10
    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 ICSA-24-102-01 updated cvss 7.0

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.20% chance of exploitation in the next 30 days, higher than 9% 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
NVD 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
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-416 Use After Free
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.