CVE-2024-50042

Kernel memory exposure via stale MSI-X arrays

Published Oct 21, 2024 · Updated May 23, 2026

Out-of-bounds access in the ice driver in Linux 6.7.10 through 6.8 allows local users to read beyond kernel allocations via VF MSI-X resizing. The ice_vf_reconfig_vsi path changes the queue count without reallocating VSI statistics arrays, so ice_vsi_alloc_ring_stats indexes stale allocations. Reachability requires an ice-managed SR-IOV virtual function and local write access to raise sriov_vf_msix_count above 16; the precise host-disruption outcome is not published.

CVSS severity7.1
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in the ice driver in Linux 6.7.10 through 6.8 allows local users to read beyond kernel allocations via VF MSI-X resizing. The ice_vf_reconfig_vsi path changes the queue count without reallocating VSI statistics arrays, so ice_vsi_alloc_ring_stats indexes stale allocations. Reachability requires an ice-managed SR-IOV virtual function and local write access to raise sriov_vf_msix_count above 16; the precise host-disruption outcome is not published.

The record

CVE
CVE-2024-50042
Published
Oct 21, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2a2cb4c6c18130e9f14d2e39deb75590744d98ef <bce9af1b030bf59d51bbabf909a3ef164787e44e
  2. Affected versionversion=2a2cb4c6c18130e9f14d2e39deb75590744d98ef <cbda6197929418fabf0e45ecf9b7a76360944c70
  3. Affected versionversion=6.7.10 <6.8
  4. Affected versionversion=6.8
  5. Affected versionversion=8910b1cef190545085e9bb486f35dd30ad928a05

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2a2cb4c6c18130e9f14d2e39deb75590744d98ef <bce9af1b030bf59d51bbabf909a3ef164787e44e; version=2a2cb4c6c18130e9f14d2e39deb75590744d98ef <cbda6197929418fabf0e45ecf9b7a76360944c70; version=6.7.10 <6.8; version=6.8; version=8910b1cef190545085e9bb486f35dd30ad928a05

Published CVSS scores

7.1CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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