CVE-2024-50296

Kernel crash via concurrent SR-IOV teardown

Published Nov 19, 2024 · Updated May 23, 2026

A race condition in the Linux hns3 network driver allows local users to crash the kernel by concurrently removing the driver and disabling VFs. The hnae3 teardown path calls pci_disable_sriov without holding the device lock, so concurrent callers both observe nonzero num_VFs and release the same virtual-function resources. Exploitation requires an hns3 device with enabled SR-IOV VFs and concurrent driver-removal and VF-disable operations; the bounded consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race condition in the Linux hns3 network driver allows local users to crash the kernel by concurrently removing the driver and disabling VFs. The hnae3 teardown path calls pci_disable_sriov without holding the device lock, so concurrent callers both observe nonzero num_VFs and release the same virtual-function resources. Exploitation requires an hns3 device with enabled SR-IOV VFs and concurrent driver-removal and VF-disable operations; the bounded consequence is a kernel crash.

The record

CVE
CVE-2024-50296
Published
Nov 19, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <719edd9f3372ce7fb3b157647c6658672946874b
  2. Affected versionversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <76b155e14d9b182ce83d32ada2d0d7219ea8c8dd
  3. Affected versionversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <b5c94e4d947d15d521e935ff10c5a22a7883dea5
  4. Affected versionversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <df3dff8ab6d79edc942464999d06fbaedf8cdd18
  5. Affected versionversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <e36482b222e00cc7aeeea772fc0cf2943590bc4d
  6. Affected versionversion=4.19.214 <4.19.324
  7. Affected versionversion=5.10.76 <5.10.230
  8. Affected versionversion=5.14.15 <5.15
  9. Affected versionversion=5.15
  10. Affected versionversion=5.4.156 <5.4.286
  11. Affected versionversion=9b5a29f0acefa3eb1dbe2fa302b393eeff64d933
  12. Affected versionversion=b06ad258e01389ca3ff13bc180f3fcd6a608f1cd <a0df055775f30850c0da8f7dab40d67c0fd63908
  13. Affected versionversion=c4b64011e458aa2b246cd4e42012cfd83d2d9a5c <7ae4e56de7dbd0999578246a536cf52a63f4056d
  14. Affected versionversion=d36b15e3e7b5937cb1f6ac590a85facc3a320642 <590a4b2d4e0b73586e88bce9b8135b593355ec09

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <719edd9f3372ce7fb3b157647c6658672946874b; version=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <76b155e14d9b182ce83d32ada2d0d7219ea8c8dd; version=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <b5c94e4d947d15d521e935ff10c5a22a7883dea5; version=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <df3dff8ab6d79edc942464999d06fbaedf8cdd18; version=0dd8a25f355b4df2d41c08df1716340854c7d4c5 <e36482b222e00cc7aeeea772fc0cf2943590bc4d; version=4.19.214 <4.19.324; version=5.10.76 <5.10.230; version=5.14.15 <5.15; version=5.15; version=5.4.156 <5.4.286; version=9b5a29f0acefa3eb1dbe2fa302b393eeff64d933; version=b06ad258e01389ca3ff13bc180f3fcd6a608f1cd <a0df055775f30850c0da8f7dab40d67c0fd63908; version=c4b64011e458aa2b246cd4e42012cfd83d2d9a5c <7ae4e56de7dbd0999578246a536cf52a63f4056d; version=d36b15e3e7b5937cb1f6ac590a85facc3a320642 <590a4b2d4e0b73586e88bce9b8135b593355ec09

Published CVSS scores

5.5CISA ADP VulnrichmentCVSS: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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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