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NVD / CVE Program· CNA Linux

CVE-2024-56748: scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()

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 0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5, 64654bf5efb3f748e6fc41227adda689618ce9c4, 78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0; cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.0 5.15.173.1-1.

Low priority for now. Upgrade to Linux Linux 0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5, 64654bf5efb3f748e6fc41227adda689618ce9c4, 78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0; cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.0 5.15.173.1-1 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: scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb() Hook "qed_ops->common->sb_init = qed_sb_init" does not release the DMA memory sb_virt when it fails. Add dma_free_coherent() to free it. This is the same way as qedr_alloc_mem_sb() and qede_alloc_mem_sb().

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Dec 29, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 13th 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-2024-56748

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 kernel4.11 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

    • 4.11affected
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before 97384449ddfc07f12ca75f510eb070020d7abb34affected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before a56777a3ef5b35e24a20c4418bcf88bad033807aaffected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before 64654bf5efb3f748e6fc41227adda689618ce9c4affected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before b514f45e0fe18d763a1afc34401b1585333cb329affected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before 7c1832287b21ff68c4e3625e63cc7619edf5908baffected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before 0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5affected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before 78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0affected · git
    • 61d8658b4a435eac729966cc94cdda077a8df5cd and later · before c62c30429db3eb4ced35c7fcf6f04a61ce3a01bbaffected · git
    • before 4.11not 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-2024-56746Dec 29, 2024 · fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem()
    22Monitor
  • ← EarlierCVE-2024-56747Dec 29, 2024 · scsi: qedi: Fix a possible memory leak in qedi_alloc_and_init_sb()
    22Monitor
  • Later →CVE-2024-56749Dec 29, 2024 · dlm: fix dlm_recover_members refcount on error
    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 Linux0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5Vendor (CNA)
Linux Linux64654bf5efb3f748e6fc41227adda689618ce9c4Vendor (CNA)
Linux Linux78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0Vendor (CNA)
Linux Linux7c1832287b21ff68c4e3625e63cc7619edf5908bVendor (CNA)
Linux Linux97384449ddfc07f12ca75f510eb070020d7abb34Vendor (CNA)
Linux Linuxa56777a3ef5b35e24a20c4418bcf88bad033807aVendor (CNA)
Linux Linuxb514f45e0fe18d763a1afc34401b1585333cb329Vendor (CNA)
Linux Linuxc62c30429db3eb4ced35c7fcf6f04a61ce3a01bbVendor (CNA)
cbl2 kernel 5.15.173.1-1 on CBL Mariner 2.05.15.173.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
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