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NVD / CVE Program· CNA Linux

CVE-2024-35939: dma-direct: Leak pages on dma_set_decrypted() failure

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.22% (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 4031b72ca747a1e6e9ae4fa729e765b43363d66a, 4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9, 5.8.
  • Severity is disputed: the assigning authority (CNA) scores it 9.3, NVD 7.1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 4031b72ca747a1e6e9ae4fa729e765b43363d66a, 4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9, 5.8 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: dma-direct: Leak pages on dma_set_decrypted() failure On TDX it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and the resulting memory is shared. Callers need to take care to handle these errors to avoid returning decrypted (shared) memory to the page allocator, which could lead to functional or security issues. DMA could free decrypted/shared pages if dma_set_decrypted() fails. This should be a rare case. Just leak the pages in this case instead of freeing them.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
May 19, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 12th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 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
7.1
CNA · Linux
9.3
2.2 point gap

CVSS:3.1/AV:L/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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-35939

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 6.1.86
  • linux linux kernel6.2 and later · before 6.6.27
  • linux linux kernel6.7 and later · before 6.8.6

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

    • 91c7b0407ca6a62c095d265f76926b67bf66c026, 5.8affected
    • 56fccf21d1961a06e2a0c96ce446ebf036651062 and later · before 4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9affected · git
    • 56fccf21d1961a06e2a0c96ce446ebf036651062 and later · before 4031b72ca747a1e6e9ae4fa729e765b43363d66aaffected · git
    • 56fccf21d1961a06e2a0c96ce446ebf036651062 and later · before b57326c96b7bc7638aa8c44e12afa2defe0c934caffected · git
    • 56fccf21d1961a06e2a0c96ce446ebf036651062 and later · before b9fa16949d18e06bdf728a560f5c8af56d2bdcafaffected · git
    • 5.7.7 and later · before 5.8affected · semver
    • before 5.8not affected · semver
    • 6.1.86 and later · up to and including 6.1.*not affected · semver
    • 6.6.27 and later · up to and including 6.6.*not affected · semver
    • 6.8.6 and later · up to and including 6.8.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernelbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-corebefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-cross-headersbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debugbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-corebefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-develbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-develbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-docbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-headersbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-modulesbefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-modules-extrabefore 4.18.0-553.27.1.el8_104.18.0-553.27.1.el8_10
AlmaLinux:8kernel-rtbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-corebefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debugbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-develbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10
AlmaLinux:8kernel-rt-modulesbefore 4.18.0-553.27.1.rt7.368.el8_104.18.0-553.27.1.rt7.368.el8_10

+96

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-2024-35932May 19, 2024 · drm/vc4: don't check if plane->state->fb == state->fb
    31Monitor
  • ← EarlierCVE-2024-35938May 19, 2024 · wifi: ath11k: decrease MHI channel buffer length to 8KB
    22Monitor
  • Later →CVE-2024-35943May 19, 2024 · pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
    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 Linux4031b72ca747a1e6e9ae4fa729e765b43363d66aVendor (CNA)
Linux Linux4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9Vendor (CNA)
Linux Linux5.8Vendor (CNA)
Linux Linuxb57326c96b7bc7638aa8c44e12afa2defe0c934cVendor (CNA)
Linux Linuxb9fa16949d18e06bdf728a560f5c8af56d2bdcafVendor (CNA)
almalinux:bpftool4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-abi-stablelists4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-core4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-cross-headers4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-core4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-devel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules-extra4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-devel4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-doc4.18.0-553.27.1.el8_10 · AlmaLinux:8Package registry (OSV)
debian:linux6.1.90-1 · Debian:12Package registry (OSV)
red hat:bpftool0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-abi-stablelists0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-core0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-core0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-debuginfo0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-devel0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debug-modules-extra0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:kernel-debuginfo0:4.18.0-553.27.1.el8_10 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)

+2

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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
high · data can be read
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
High
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:H/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 (3 more)

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

All records