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NVD / CVE Program· CNA Linux

CVE-2024-26839: IB/hfi1: Fix a memleak in init_credit_return

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.23% (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 2e4f9f20b32658ef3724aa46f7aef4908d2609e3, 3fa240bb6b2dbb3e7a3ee1440a4889cbb6207eb7, 52de5805c147137205662af89ed7e083d656ae25.

Low priority for now. Upgrade to Linux Linux 2e4f9f20b32658ef3724aa46f7aef4908d2609e3, 3fa240bb6b2dbb3e7a3ee1440a4889cbb6207eb7, 52de5805c147137205662af89ed7e083d656ae25 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: IB/hfi1: Fix a memleak in init_credit_return When dma_alloc_coherent fails to allocate dd->cr_base[i].va, init_credit_return should deallocate dd->cr_base and dd->cr_base[i] that allocated before. Or those resources would be never freed and a memleak is triggered.

Published
Apr 17, 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.

Follow CVE-2024-26839

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
debiandebian linux

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

    • 4.3affected
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before 2e4f9f20b32658ef3724aa46f7aef4908d2609e3affected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before cecfb90cf71d91e9efebd68b9e9b84661b277cc8affected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before 3fa240bb6b2dbb3e7a3ee1440a4889cbb6207eb7affected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before 52de5805c147137205662af89ed7e083d656ae25affected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before f0d857ce31a6bc7a82afcdbadb8f7417d482604baffected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before b41d0ade0398007fb746213f09903d52a920e896affected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before 8412c86e89cc78d8b513cb25cf2157a2adf3670aaffected · git
    • 7724105686e718ac476a6ad3304fea2fbcfcffde and later · before 809aa64ebff51eb170ee31a95f83b2d21efa32e2affected · git
    • before 4.3not affected · semver
Affected versions · NVD (9)

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 5.4.270
  • linux linux kernel5.5 and later · before 5.10.211
  • linux linux kernel5.11 and later · before 5.15.150
  • linux linux kernel4.3 and later · before 4.19.308
  • linux linux kernel6.2 and later · before 6.6.19
  • linux linux kernel6.7 and later · before 6.7.7
  • linux linux kernel5.16 and later · before 6.1.80
  • linux linux kernel6.8

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1

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-2024-26837Apr 17, 2024 · net: bridge: switchdev: Skip MDB replays of deferred events on offload
    18Monitor
  • ← EarlierCVE-2024-26838Apr 17, 2024 · RDMA/irdma: Fix KASAN issue with tasklet
    22Monitor
  • Later →CVE-2024-26840Apr 17, 2024 · cachefiles: fix memory leak in cachefiles_add_cache()
    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 Linux2e4f9f20b32658ef3724aa46f7aef4908d2609e3Vendor (CNA)
Linux Linux3fa240bb6b2dbb3e7a3ee1440a4889cbb6207eb7Vendor (CNA)
Linux Linux52de5805c147137205662af89ed7e083d656ae25Vendor (CNA)
Linux Linux809aa64ebff51eb170ee31a95f83b2d21efa32e2Vendor (CNA)
Linux Linux8412c86e89cc78d8b513cb25cf2157a2adf3670aVendor (CNA)
Linux Linuxb41d0ade0398007fb746213f09903d52a920e896Vendor (CNA)
Linux Linuxcecfb90cf71d91e9efebd68b9e9b84661b277cc8Vendor (CNA)
Linux Linuxf0d857ce31a6bc7a82afcdbadb8f7417d482604bVendor (CNA)
debian:linux6.1.82-1 · 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (9 more)

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

All records