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NVD / CVE Program· CNA Linux

CVE-2024-26974: crypto: qat - resolve race condition during AER recovery

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.20% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 0c2cf5142bfb634c0ef0a1a69cdf37950747d0be, 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7, 4ae5a97781ce7d6ecc9c7055396535815b64ca4f; azl3 hyperv-daemons 6.6.22.1-2 on Azure Linux 3.0 6.6.35.1-1; azl3 hyperv-daemons 6.6.35.1-1 on Azure Linux 3.0 6.6.35.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0c2cf5142bfb634c0ef0a1a69cdf37950747d0be, 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7, 4ae5a97781ce7d6ecc9c7055396535815b64ca4f; azl3 hyperv-daemons 6.6.22.1-2 on Azure Linux 3.0 6.6.35.1-1; azl3 hyperv-daemons 6.6.35.1-1 on Azure Linux 3.0 6.6.35.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

HighCVSS 7.0 · v3.1—No exploit Fix available
Published
May 1, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 9th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.0 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
7.0
CNA · Linux
7.8
0.8 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux10.0
  • linux linux kernel4.20 and later · before 5.4.274
  • linux linux kernel5.5 and later · before 5.10.215
  • linux linux kernel5.11 and later · before 5.15.154
  • linux linux kernel3.17 and later · before 4.19.312
  • linux linux kernel6.2 and later · before 6.6.24
  • linux linux kernel6.7 and later · before 6.7.12
  • linux linux kernel6.8 and later · before 6.8.3
  • linux linux kernel5.16 and later · before 6.1.84

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 3.17affected
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before daba62d9eeddcc5b1081be7d348ca836c83c59d7affected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 8e81cd58aee14a470891733181a47d123193ba81affected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before d03092550f526a79cf1ade7f0dfa74906f39eb71affected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 4ae5a97781ce7d6ecc9c7055396535815b64ca4faffected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7affected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcaffected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 0c2cf5142bfb634c0ef0a1a69cdf37950747d0beaffected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before bb279ead42263e9fb09480f02a4247b2c287d828affected · git
    • d8cba25d2c68992a6e7c1d329b690a9ebe01167d and later · before 7d42e097607c4d246d99225bf2b195b6167a210caffected · git

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.3.0-427.24.1.el9_47.3.0-427.24.1.el9_4
AlmaLinux:9kernelbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64kbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debugbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-develbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-cross-headersbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-debugbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-debug-corebefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-debug-develbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-427.24.1.el9_45.14.0-427.24.1.el9_4

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-26961May 1, 2024 · mac802154: fix llsec key resources release in mac802154_llsec_key_del
    31Monitor
  • ← EarlierCVE-2024-26973May 1, 2024 · fat: fix uninitialized field in nostale filehandles
    22Monitor
  • Later →CVE-2024-26982May 1, 2024 · Squashfs: check the inode number is not the invalid value of zero
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0c2cf5142bfb634c0ef0a1a69cdf37950747d0beVendor (CNA)
Linux Linux226fc408c5fcd23cc4186f05ea3a09a7a9aef2f7Vendor (CNA)
Linux Linux4ae5a97781ce7d6ecc9c7055396535815b64ca4fVendor (CNA)
Linux Linux7d42e097607c4d246d99225bf2b195b6167a210cVendor (CNA)
Linux Linux8a5a7611ccc7b1fba8d933a9f22a2e76859d94dcVendor (CNA)
Linux Linux8e81cd58aee14a470891733181a47d123193ba81Vendor (CNA)
Linux Linuxbb279ead42263e9fb09480f02a4247b2c287d828Vendor (CNA)
Linux Linuxd03092550f526a79cf1ade7f0dfa74906f39eb71Vendor (CNA)
Linux Linuxdaba62d9eeddcc5b1081be7d348ca836c83c59d7Vendor (CNA)
azl3 hyperv-daemons 6.6.22.1-2 on Azure Linux 3.06.6.35.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 hyperv-daemons 6.6.35.1-1 on Azure Linux 3.06.6.35.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
almalinux:bpftool7.3.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-427.24.1.el9_4 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.85-1 · Debian:12Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.24.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)

+7

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-38352447 days apartposix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()KEV
    61This week
  • CVE-2023-2007373 days apartThe specific flaw exists within the DPT I2O Controller driver.
    31Monitor
  • CVE-2021-4728020 days apartdrm: Fix use-after-free read in drm_getunique()
    28Monitor
  • CVE-2024-43882112 days apartexec: Fix ToCToU between perm check and set-uid/gid usage
    28Monitor
  • CVE-2024-50234192 days apartwifi: iwlegacy: Clear stale interrupts before resuming device
    28Monitor
  • CVE-2023-1295308 days apartPrivilege escalation with IO_RING_OP_CLOSE in the Linux Kernel
    28Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (11 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records