CVE-2024-44995

Kernel compromise via hns3 reset race

Published Sep 4, 2024 · Updated Aug 5, 2026

Improper locking in the Linux hns3 driver allows local users with CAP_NET_ADMIN to compromise or hang the host during a PF reset. hns3_nic_setup_tc can re-enable a port while reset teardown frees its NAPI contexts, work items, and DMA rings, leaving live users of freed objects. Reachability requires control of an hns3 netdevice and both reset and traffic-control operations; exploitation permits kernel-memory reads or writes, while an unweaponized race can permanently wedge networking.

CVSS severity7.8
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in the Linux hns3 driver allows local users with CAP_NET_ADMIN to compromise or hang the host during a PF reset. hns3_nic_setup_tc can re-enable a port while reset teardown frees its NAPI contexts, work items, and DMA rings, leaving live users of freed objects. Reachability requires control of an hns3 netdevice and both reset and traffic-control operations; exploitation permits kernel-memory reads or writes, while an unweaponized race can permanently wedge networking.

The record

CVE
CVE-2024-44995
Published
Sep 4, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-667, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 4, 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

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=4.15
  2. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <195918217448a6bb7f929d6a2ffffce9f1ece1cc
  3. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <67492d4d105c0a6321b00c393eec96b9a7a97a16
  4. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <6ae2b7d63cd056f363045eb65409143e16f23ae8
  5. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <be5e816d00a506719e9dbb1a9c861c5ced30a109
  6. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <de37408d5c26fc4a296a28a0c96dcb814219bfa1
  7. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <fa1d4de7265c370e673583ac8d1bd17d21826cd9
  8. Affected versionversion=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <fc250eca15bde34c4c8f806b9d88f55bd56a992c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <195918217448a6bb7f929d6a2ffffce9f1ece1cc; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <67492d4d105c0a6321b00c393eec96b9a7a97a16; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <6ae2b7d63cd056f363045eb65409143e16f23ae8; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <be5e816d00a506719e9dbb1a9c861c5ced30a109; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <de37408d5c26fc4a296a28a0c96dcb814219bfa1; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <fa1d4de7265c370e673583ac8d1bd17d21826cd9; version=bb6b94a896d4dd4dcdeccca87c3fd22521c652c0 <fc250eca15bde34c4c8f806b9d88f55bd56a992c

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-667Improper Locking
T1068Exploitation for Privilege Escalation

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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