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NVD / CVE Program· CNA Linux

CVE-2024-56719: net: stmmac: fix TSO DMA API usage causing oops

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: 0.54% (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 05968b6dd0ffc65d7386608b11a11fb4fdfc9f36, 4c49f38e20a57f8abaebdf95b369295b153d1f8e, 5.15.209; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1.
  • Severity is disputed: the assigning authority (CNA) scores it 10.0, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 05968b6dd0ffc65d7386608b11a11fb4fdfc9f36, 4c49f38e20a57f8abaebdf95b369295b153d1f8e, 5.15.209; azl3 kernel 6.6.64.2-9 on Azure Linux 3.0 6.6.76.1-1; azl3 kernel 6.6.76.1-1 on Azure Linux 3.0 6.6.76.1-1 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: net: stmmac: fix TSO DMA API usage causing oops Commit 66600fac7a98 ("net: stmmac: TSO: Fix unbalanced DMA map/unmap for non-paged SKB data") moved the assignment of tx_skbuff_dma[]'s members to be later in stmmac_tso_xmit(). The buf (dma cookie) and len stored in this structure are passed to dma_unmap_single() by stmmac_tx_clean(). The DMA API requires that the dma cookie passed to dma_unmap_single() is the same as the value returned from dma_map_single(). However, by moving the assignment later, this is not the case when priv->dma_cap.addr64 > 32 as "des" is offset by proto_hdr_len. This causes problems such as: dwc-eth-dwmac 2490000.ethernet eth0: Tx DMA map failed and with DMA_API_DEBUG enabled: DMA-API: dwc-eth-dwmac 2490000.ethernet: device driver tries to +free DMA memory it has not allocated [device address=0x000000ffffcf65c0] [size=66 bytes] Fix this by maintaining "des" as the original DMA cookie, and use tso_des to pass the offset DMA cookie to stmmac_tso_allocator(). Full details of the crashes can be found at: https://lore.kernel.org/all/d8112193-0386-4e14-b516-37c2d838171a@nvidia.com/ https://lore.kernel.org/all/klkzp5yn5kq5efgtrow6wbvnc46bcqfxs65nz3qy77ujr5turc@bwwhelz2l4dw/

Published
Dec 29, 2024
Updated
Nov 10, 2026
EPSS
0.5% · 46th percentile
CWE
—

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 · 0.5%

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
10.0
4.5 point gap

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

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Follow CVE-2024-56719

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

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

    • 58d23d835eb498336716cca55b5714191a309286, 6.12affected
    • ece593fc9c00741b682869d3f3dc584d37b7c9df and later · before 05968b6dd0ffc65d7386608b11a11fb4fdfc9f36affected · git
    • a3ff23f7c3f0e13f718900803e090fd3997d6bc9 and later · before 6abcdc9a73274052a9e96a1926994ecf9aedad82affected · git
    • 07c9c26e37542486e34d767505e842f48f29c3f6 and later · before db3667c9bbfbbf5de98e6c9542f7e03fb5243286affected · git
    • 66600fac7a984dea4ae095411f644770b2561ede and later · before 9d5dd7ccea1b46a9a7c6b3c2b9e5ed8864e185e2affected · git
    • 66600fac7a984dea4ae095411f644770b2561ede and later · before 4c49f38e20a57f8abaebdf95b369295b153d1f8eaffected · git
    • 5.15.171 and later · before 5.15.209affected · semver
    • 6.1.116 and later · before 6.1.167affected · semver
    • 6.6.60 and later · before 6.6.68affected · semver
    • 6.11.7 and later · before 6.12affected · semver
Affected versions · NVD (5)

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

  • linux linux kernel5.15.171 and later · before 5.16
  • linux linux kernel6.1.116 and later · before 6.2
  • linux linux kernel6.6.60 and later · before 6.6.68
  • linux linux kernel6.11.7 and later · before 6.12.7
  • linux linux kernel6.13

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.8-16.12.8-1

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-2024-56712Dec 29, 2024 · udmabuf: fix memory leak on last export_udmabuf() error path
    22Monitor
  • ← EarlierCVE-2024-56714Dec 29, 2024 · ionic: no double destroy workqueue
    22Monitor
  • Later →CVE-2024-56729Dec 29, 2024 · smb: Initialize cfid->tcon before performing network ops
    18Monitor

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 Linux05968b6dd0ffc65d7386608b11a11fb4fdfc9f36Vendor (CNA)
Linux Linux4c49f38e20a57f8abaebdf95b369295b153d1f8eVendor (CNA)
Linux Linux5.15.209Vendor (CNA)
Linux Linux6.1.167Vendor (CNA)
Linux Linux6.12Vendor (CNA)
Linux Linux6.6.68Vendor (CNA)
Linux Linux6abcdc9a73274052a9e96a1926994ecf9aedad82Vendor (CNA)
Linux Linux9d5dd7ccea1b46a9a7c6b3c2b9e5ed8864e185e2Vendor (CNA)
Linux Linuxdb3667c9bbfbbf5de98e6c9542f7e03fb5243286Vendor (CNA)
azl3 kernel 6.6.64.2-9 on Azure Linux 3.06.6.76.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
azl3 kernel 6.6.76.1-1 on Azure Linux 3.06.6.76.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.170-1 · 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)

—

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 (8 more)

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

All records