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NVD / CVE Program· CNA Linux

CVE-2023-52932: mm/swapfile: add cond_resched() in get_swap_pages()

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: 0.20% (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 29f0349c5c76b627fe06b87d4b13fa03a6ce8e64, 3.13, 3.15.

Low priority for now. Upgrade to Linux Linux 29f0349c5c76b627fe06b87d4b13fa03a6ce8e64, 3.13, 3.15 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: mm/swapfile: add cond_resched() in get_swap_pages() The softlockup still occurs in get_swap_pages() under memory pressure. 64 CPU cores, 64GB memory, and 28 zram devices, the disksize of each zram device is 50MB with same priority as si. Use the stress-ng tool to increase memory pressure, causing the system to oom frequently. The plist_for_each_entry_safe() loops in get_swap_pages() could reach tens of thousands of times to find available space (extreme case: cond_resched() is not called in scan_swap_map_slots()). Let's add cond_resched() into get_swap_pages() when failed to find available space to avoid softlockup.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Mar 27, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 10th 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.

Follow CVE-2023-52932

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • 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 kernelbefore 4.14.306
  • linux linux kernel4.15 and later · before 4.19.273
  • linux linux kernel4.20 and later · before 5.4.232
  • linux linux kernel5.5 and later · before 5.10.168
  • linux linux kernel5.11 and later · before 5.15.93
  • linux linux kernel5.16 and later · before 6.1.11
  • linux linux kernel6.2

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

    • 75b1f2d3ed3169675b69b2f68217ebb839414657, bcbfe6fdf8576a545fafdfe4611f59cc6b166589, 3.16affected
    • adfab836f4908deb049a5128082719e689eed964 and later · before 29f0349c5c76b627fe06b87d4b13fa03a6ce8e64affected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before 387217b97e99699c34e6d95ce2b91b327fcd853eaffected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before d49c85a1913385eed46dd16a25ad0928253767f0affected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before 30187be29052bba9203b0ae2bdd815e0bc2faaabaffected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before 5dbe1ebd56470d03b78fc31491a9e4d433106ef2affected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before 49178d4d61e78aed8c837dfeea8a450700f196e2affected · git
    • adfab836f4908deb049a5128082719e689eed964 and later · before 7717fc1a12f88701573f9ed897cc4f6699c661e3affected · git
    • 3.12.30 and later · before 3.13affected · semver
    • 3.14.21 and later · before 3.15affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.11-16.1.11-1

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-2023-52930Mar 27, 2025 · drm/i915: Fix potential bit_17 double-free
    31Monitor
  • ← EarlierCVE-2023-52931Mar 27, 2025 · drm/i915: Avoid potential vm use-after-free
    31Monitor
  • Later →CVE-2023-52933Mar 27, 2025 · Squashfs: fix handling and sanity checking of xattr_ids count
    22Monitor

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 Linux29f0349c5c76b627fe06b87d4b13fa03a6ce8e64Vendor (CNA)
Linux Linux3.13Vendor (CNA)
Linux Linux3.15Vendor (CNA)
Linux Linux30187be29052bba9203b0ae2bdd815e0bc2faaabVendor (CNA)
Linux Linux387217b97e99699c34e6d95ce2b91b327fcd853eVendor (CNA)
Linux Linux49178d4d61e78aed8c837dfeea8a450700f196e2Vendor (CNA)
Linux Linux5dbe1ebd56470d03b78fc31491a9e4d433106ef2Vendor (CNA)
Linux Linux7717fc1a12f88701573f9ed897cc4f6699c661e3Vendor (CNA)
Linux Linuxd49c85a1913385eed46dd16a25ad0928253767f0Vendor (CNA)
debian:linux6.1.11-1 · 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-667 · Improper Locking

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.

Change log

  1. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records