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NVD / CVE Program· CNA Linux

CVE-2023-52774: s390/dasd: protect device queue against concurrent access

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.24% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 6062c527d0403cef27c54b91ac8390c3a497b250, 9372aab5d0ff621ea203c8c603e7e5f75e888240, c841de6247e94e07566d57163d3c0d8b29278f7a.

Low priority for now. Upgrade to Linux Linux 6062c527d0403cef27c54b91ac8390c3a497b250, 9372aab5d0ff621ea203c8c603e7e5f75e888240, c841de6247e94e07566d57163d3c0d8b29278f7a 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: s390/dasd: protect device queue against concurrent access In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses. Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 21, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 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.

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

If any of these changes, we'll tell you in the daily email digest.

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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

Affected versions

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

  • linux linux kernel3.1 and later · before 4.14.332
  • linux linux kernel4.15 and later · before 4.19.301
  • linux linux kernel4.20 and later · before 5.4.263
  • linux linux kernel5.5 and later · before 5.10.203
  • linux linux kernel5.11 and later · before 5.15.141
  • linux linux kernel5.16 and later · before 6.1.65
  • linux linux kernel6.2 and later · before 6.6.4
  • linux linux kernel6.7

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

    • 3.1affected
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before ebdc569a07a3e8dbe66b4184922ad6f88ac0b96faffected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before f75617cc8df4155374132f0b500b0b3ebb967458affected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before f1ac7789406e2ca9ac51c41ad2daa597f47bdd4daffected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before c841de6247e94e07566d57163d3c0d8b29278f7aaffected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before 6062c527d0403cef27c54b91ac8390c3a497b250affected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before dc96fde8fcb2b896fd6c64802a7f4ece2e69b0beaffected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before 9372aab5d0ff621ea203c8c603e7e5f75e888240affected · git
    • 4fa52aa7a82f9226b3874a69816bda3af821f002 and later · before db46cd1e0426f52999d50fa72cfa97fa39952885affected · git
    • before 3.1not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.66-16.1.66-1
Debian:13linuxbefore 6.6.8-16.6.8-1

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-2023-52772May 21, 2024 · af_unix: fix use-after-free in unix_stream_read_actor()
    31Monitor
  • ← EarlierCVE-2023-52773May 21, 2024 · drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer()
    22Monitor
  • Later →CVE-2023-52775May 21, 2024 · net/smc: avoid data corruption caused by decline
    31Monitor

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 Linux6062c527d0403cef27c54b91ac8390c3a497b250Vendor (CNA)
Linux Linux9372aab5d0ff621ea203c8c603e7e5f75e888240Vendor (CNA)
Linux Linuxc841de6247e94e07566d57163d3c0d8b29278f7aVendor (CNA)
Linux Linuxdb46cd1e0426f52999d50fa72cfa97fa39952885Vendor (CNA)
Linux Linuxdc96fde8fcb2b896fd6c64802a7f4ece2e69b0beVendor (CNA)
Linux Linuxebdc569a07a3e8dbe66b4184922ad6f88ac0b96fVendor (CNA)
Linux Linuxf1ac7789406e2ca9ac51c41ad2daa597f47bdd4dVendor (CNA)
Linux Linuxf75617cc8df4155374132f0b500b0b3ebb967458Vendor (CNA)
debian:linux6.1.66-1 · Debian:12Package registry (OSV)

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.

No nightly-computed relations.

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).

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.
  • No special conditions are required; it is repeatable.

If successful

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

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

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

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

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

References

Show all references (7 more)

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

All records