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NVD / CVE Program· CNA Linux

CVE-2024-53198: xen: Fix the issue of resource not being properly released in xenbus_dev_probe()

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 0aa9e30b5b4af5dd504801689d6d84c584290a45, 217bdce88b104269b73603b84d0ab4dd04f481bc, 2f977a4c82d35d063f5fe198bbc501c4b1c5ea0e.
  • Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 0aa9e30b5b4af5dd504801689d6d84c584290a45, 217bdce88b104269b73603b84d0ab4dd04f481bc, 2f977a4c82d35d063f5fe198bbc501c4b1c5ea0e 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: xen: Fix the issue of resource not being properly released in xenbus_dev_probe() This patch fixes an issue in the function xenbus_dev_probe(). In the xenbus_dev_probe() function, within the if (err) branch at line 313, the program incorrectly returns err directly without releasing the resources allocated by err = drv->probe(dev, id). As the return value is non-zero, the upper layers assume the processing logic has failed. However, the probe operation was performed earlier without a corresponding remove operation. Since the probe actually allocates resources, failing to perform the remove operation could lead to problems. To fix this issue, we followed the resource release logic of the xenbus_dev_remove() function by adding a new block fail_remove before the fail_put block. After entering the branch if (err) at line 313, the function will use a goto statement to jump to the fail_remove block, ensuring that the previously acquired resources are correctly released, thus preventing the reference count leak. This bug was identified by an experimental static analysis tool developed by our team. The tool specializes in analyzing reference count operations and detecting potential issues where resources are not properly managed. In this case, the tool flagged the missing release operation as a potential problem, which led to the development of this patch.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Dec 27, 2024
Updated
Aug 5, 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.

CNA vs NVD score

NVD
5.5
CNA · Linux
7.8
2.3 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

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
  • 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 kernel2.6.23 and later · before 5.4.287
  • linux linux kernel5.5 and later · before 5.10.231
  • linux linux kernel5.11 and later · before 5.15.174
  • linux linux kernel5.16 and later · before 6.1.120
  • linux linux kernel6.2 and later · before 6.6.64
  • linux linux kernel6.7 and later · before 6.11.11
  • linux linux kernel6.12 and later · before 6.12.2

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

    • 2.6.23affected
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 87106169b4ce26f85561f953d13d1fd86d99b612affected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 0aa9e30b5b4af5dd504801689d6d84c584290a45affected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before e8823e6ff313465910edea07581627d85e68d9fdaffected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 3fc0996d2fefe61219375fd650601724b8cf2d30affected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 804b96f8d0a02fa10b92f28b2e042f9128ed3ffcaffected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 217bdce88b104269b73603b84d0ab4dd04f481bcaffected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before 2f977a4c82d35d063f5fe198bbc501c4b1c5ea0eaffected · git
    • 4bac07c993d03434ea902d3d4290d9e45944b66c and later · before afc545da381ba0c651b2658966ac737032676f01affected · git
    • before 2.6.23not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.123-16.1.123-1
Debian:13linuxbefore 6.12.3-16.12.3-1

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-2024-53194Dec 27, 2024 · PCI: Fix use-after-free of slot->bus on hot remove
    31Monitor
  • ← EarlierCVE-2024-53197Dec 27, 2024 · ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devicesKEV
    62This week
  • Later →CVE-2024-53199Dec 27, 2024 · ASoC: imx-audmix: Add NULL check in imx_audmix_probe
    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 Linux0aa9e30b5b4af5dd504801689d6d84c584290a45Vendor (CNA)
Linux Linux217bdce88b104269b73603b84d0ab4dd04f481bcVendor (CNA)
Linux Linux2f977a4c82d35d063f5fe198bbc501c4b1c5ea0eVendor (CNA)
Linux Linux3fc0996d2fefe61219375fd650601724b8cf2d30Vendor (CNA)
Linux Linux804b96f8d0a02fa10b92f28b2e042f9128ed3ffcVendor (CNA)
Linux Linux87106169b4ce26f85561f953d13d1fd86d99b612Vendor (CNA)
Linux Linuxafc545da381ba0c651b2658966ac737032676f01Vendor (CNA)
Linux Linuxe8823e6ff313465910edea07581627d85e68d9fdVendor (CNA)
debian:linux6.1.123-1 · 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-401 · Missing Release of Memory after Effective Lifetime

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 (9 more)

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

All records