CVE-2024-42286Network attack vector

Remote kernel crash via unchecked NVMe local port

Published Aug 17, 2024 · Updated Aug 5, 2026

Null-pointer dereference in the Linux qla2xxx NVMe/FC driver allows remote attackers on the Fibre Channel fabric to crash the kernel. Concurrent NVMe/FC registration paths can leave nvme_local_port unset after qla_nvme_register_hba() fails, yet qla_nvme_register_remote() continues and passes that null pointer to nvme_fc_register_remoteport(). Reachability requires an NVMe/FC-capable qla2xxx adapter on a Fibre Channel fabric; the crash aborts driver loading and can leave the storage path unusable.

CVSS severity7.5
High
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null-pointer dereference in the Linux qla2xxx NVMe/FC driver allows remote attackers on the Fibre Channel fabric to crash the kernel. Concurrent NVMe/FC registration paths can leave nvme_local_port unset after qla_nvme_register_hba() fails, yet qla_nvme_register_remote() continues and passes that null pointer to nvme_fc_register_remoteport(). Reachability requires an NVMe/FC-capable qla2xxx adapter on a Fibre Channel fabric; the crash aborts driver loading and can leave the storage path unusable.

The record

CVE
CVE-2024-42286
Published
Aug 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=4.19
  2. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <3eac973eb5cb2b874b3918f924798afc5affd46b
  3. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <549aac9655320c9b245a24271b204668c5d40430
  4. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <7cec2c3bfe84539c415f5e16f989228eba1d2f1e
  5. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <a3ab508a4853a9f5ae25a7816a4889f09938f63c
  6. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <cde43031df533751b4ead37d173922feee2f550f
  7. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <e1f010844443c389bc552884ac5cfa47de34d54c
  8. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <eb1d4ce2609584eeb7694866f34d4b213caa3af9
  9. Affected versionversion=8777e4314d397c4e3615dc02fe8537e571e3922f <f6be298cc1042f24d521197af29c7c4eb95af4d5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.19; version=8777e4314d397c4e3615dc02fe8537e571e3922f <3eac973eb5cb2b874b3918f924798afc5affd46b; version=8777e4314d397c4e3615dc02fe8537e571e3922f <549aac9655320c9b245a24271b204668c5d40430; version=8777e4314d397c4e3615dc02fe8537e571e3922f <7cec2c3bfe84539c415f5e16f989228eba1d2f1e; version=8777e4314d397c4e3615dc02fe8537e571e3922f <a3ab508a4853a9f5ae25a7816a4889f09938f63c; version=8777e4314d397c4e3615dc02fe8537e571e3922f <cde43031df533751b4ead37d173922feee2f550f; version=8777e4314d397c4e3615dc02fe8537e571e3922f <e1f010844443c389bc552884ac5cfa47de34d54c; version=8777e4314d397c4e3615dc02fe8537e571e3922f <eb1d4ce2609584eeb7694866f34d4b213caa3af9; version=8777e4314d397c4e3615dc02fe8537e571e3922f <f6be298cc1042f24d521197af29c7c4eb95af4d5

Published CVSS scores

5.5Canonical UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.5Linux kernel CVE teamCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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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