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NVD / CVE Program· CNA Linux

CVE-2024-35958: net: ena: Fix incorrect descriptor free behavior

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: 0.25% (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 19ff8fed3338898b70b2aad831386c78564912e1, 5c7f2240d9835a7823d87f7460d8eae9f4e504c7, b26aa765f7437e1bbe8db4c1641b12bd5dd378f0.
  • Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 5.5.

Low priority for now. Upgrade to Linux Linux 19ff8fed3338898b70b2aad831386c78564912e1, 5c7f2240d9835a7823d87f7460d8eae9f4e504c7, b26aa765f7437e1bbe8db4c1641b12bd5dd378f0 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: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 20, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 17th 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 · 0.2%

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.

Follow CVE-2024-35958

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

Affected versions

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 kernel5.11 and later · before 5.15.156
  • linux linux kernel5.16 and later · before 6.1.87
  • linux linux kernel5.6 and later · before 5.10.216
  • linux linux kernel6.7 and later · before 6.8.7
  • linux linux kernel6.2 and later · before 6.6.28
  • linux linux kernel6.9

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

    • 5.6affected
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before b26aa765f7437e1bbe8db4c1641b12bd5dd378f0affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before fdfbf54d128ab6ab255db138488f9650485795a2affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 19ff8fed3338898b70b2aad831386c78564912e1affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before 5c7f2240d9835a7823d87f7460d8eae9f4e504c7affected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1daffected · git
    • 548c4940b9f1f527f81509468dd60b61418880b6 and later · before bf02d9fe00632d22fa91d34749c7aacf397b6cdeaffected · git
    • before 5.6not affected · semver
    • 5.10.216 and later · up to and including 5.10.*not affected · semver
    • 5.15.156 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.3.0-427.26.1.el9_47.3.0-427.26.1.el9_4
AlmaLinux:9kernelbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64kbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debugbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-develbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-cross-headersbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-debugbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-debug-corebefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-debug-develbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-427.26.1.el9_45.14.0-427.26.1.el9_4

+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-2024-35951May 20, 2024 · drm/panfrost: Fix the error path in panfrost_mmu_map_fault_addr()
    22Monitor
  • ← EarlierCVE-2024-35955May 20, 2024 · kprobes: Fix possible use-after-free issue on kprobe registration
    35Monitor
  • Later →CVE-2024-35960May 20, 2024 · net/mlx5: Properly link new fs rules into the tree
    36Monitor

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 Linux19ff8fed3338898b70b2aad831386c78564912e1Vendor (CNA)
Linux Linux5c7f2240d9835a7823d87f7460d8eae9f4e504c7Vendor (CNA)
Linux Linuxb26aa765f7437e1bbe8db4c1641b12bd5dd378f0Vendor (CNA)
Linux Linuxbf02d9fe00632d22fa91d34749c7aacf397b6cdeVendor (CNA)
Linux Linuxc31baa07f01307b7ae05f3ce32b89d8e2ba0cc1dVendor (CNA)
Linux Linuxfdfbf54d128ab6ab255db138488f9650485795a2Vendor (CNA)
almalinux:bpftool7.3.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-427.26.1.el9_4 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.90-1 · Debian:12Package registry (OSV)
red hat:kernel-rt0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-core0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-core0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:5.14.0-284.71.1.rt14.356.el9_2 · Red Hat:rhel_eus:9.2::nfvPackage 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).

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

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

All records