CVE-2022-48896

Service interruption via unreleased PCI device references

Published Aug 21, 2024 · Updated May 11, 2026

Resource leak in the ixgbe driver in affected Linux 5.0 through 6.2-rc3 releases allows local users to interrupt service via PCI lookup. The ixgbe_get_first_secondary_devfn and ixgbe_x550em_a_has_mii functions retain references returned by pci_get_domain_bus_and_slot instead of releasing them with pci_dev_put. Exploitation requires local low-privileged access and an applicable ixgbe device; the public record does not identify the action that repeats the leak.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in the ixgbe driver in affected Linux 5.0 through 6.2-rc3 releases allows local users to interrupt service via PCI lookup. The ixgbe_get_first_secondary_devfn and ixgbe_x550em_a_has_mii functions retain references returned by pci_get_domain_bus_and_slot instead of releasing them with pci_dev_put. Exploitation requires local low-privileged access and an applicable ixgbe device; the public record does not identify the action that repeats the leak.

The record

CVE
CVE-2022-48896
Published
Aug 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=5.0
  2. Affected versionversion=8fa10ef01260937eb540b4e9bbc3efa023595993 <112df4cd2b09acd64bcd18f5ef83ba5d07b34bf0
  3. Affected versionversion=8fa10ef01260937eb540b4e9bbc3efa023595993 <4c93422a54cd6a349988f42e1c6bf082cf4ea9d8
  4. Affected versionversion=8fa10ef01260937eb540b4e9bbc3efa023595993 <53cefa802f070d46c0c518f4865be2c749818a18
  5. Affected versionversion=8fa10ef01260937eb540b4e9bbc3efa023595993 <b93fb4405fcb5112c5739c5349afb52ec7f15c07
  6. Affected versionversion=8fa10ef01260937eb540b4e9bbc3efa023595993 <c49996c6aa03590e4ef5add8772cb6068d99fd59

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.0; version=8fa10ef01260937eb540b4e9bbc3efa023595993 <112df4cd2b09acd64bcd18f5ef83ba5d07b34bf0; version=8fa10ef01260937eb540b4e9bbc3efa023595993 <4c93422a54cd6a349988f42e1c6bf082cf4ea9d8; version=8fa10ef01260937eb540b4e9bbc3efa023595993 <53cefa802f070d46c0c518f4865be2c749818a18; version=8fa10ef01260937eb540b4e9bbc3efa023595993 <b93fb4405fcb5112c5739c5349afb52ec7f15c07; version=8fa10ef01260937eb540b4e9bbc3efa023595993 <c49996c6aa03590e4ef5add8772cb6068d99fd59

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.

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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

CWE-401Missing Release of Memory after Effective Lifetime

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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