CVE-2025-23151

Kernel panic via unchecked MHI channel teardown race

Published May 1, 2025 · Updated Aug 5, 2026

Race condition in the MHI host driver in affected Linux kernel versions allows local users to panic the kernel during channel teardown. The mhi_gen_tre() function locks the channel but fails to recheck its state before dereferencing ring data that mhi_unprepare_from_transfer() can deinitialize concurrently. Local low-privileged code can repeatedly queue MHI traffic while asynchronous suspend, reset, or driver removal tears down the channel, causing kernel memory corruption or a crash.

CVSS severity7.8
High
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the MHI host driver in affected Linux kernel versions allows local users to panic the kernel during channel teardown. The mhi_gen_tre() function locks the channel but fails to recheck its state before dereferencing ring data that mhi_unprepare_from_transfer() can deinitialize concurrently. Local low-privileged code can repeatedly queue MHI traffic while asynchronous suspend, reset, or driver removal tears down the channel, causing kernel memory corruption or a crash.

The record

CVE
CVE-2025-23151
Published
May 1, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2025CVE 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=0b093176fd0967a5f56e2c86b0d48247f6c0fa0f <3e7ecf181cbdde9753204ada3883ca1704d8702b
  2. Affected versionversion=176ed1727badd2fad2158e2b214dcbc24f4be7a1 <899d0353ea69681f474b6bc9de32c663b89672da
  3. Affected versionversion=5.15.149 <5.15.181
  4. Affected versionversion=6.1.76 <6.1.135
  5. Affected versionversion=642adb03541673f3897f64bbb62856ffd73807f5
  6. Affected versionversion=6.6.15 <6.6.88
  7. Affected versionversion=6.7.3 <6.8
  8. Affected versionversion=6.8
  9. Affected versionversion=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <0686a818d77a431fc3ba2fab4b46bbb04e8c9380
  10. Affected versionversion=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <178e5657c8fd285125cc6743a81b513bce099760
  11. Affected versionversion=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <a77955f7704b2a00385e232cbcc1cb06b5c7a425
  12. Affected versionversion=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <ee1fce83ed56450087309b9b74ad9bcb2b010fa6
  13. Affected versionversion=ce16274a6b8d1483d0d8383272deb2bfd1b577ca <5f084993c90d9d0b4a52a349ede5120f992a7ca1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0b093176fd0967a5f56e2c86b0d48247f6c0fa0f <3e7ecf181cbdde9753204ada3883ca1704d8702b; version=176ed1727badd2fad2158e2b214dcbc24f4be7a1 <899d0353ea69681f474b6bc9de32c663b89672da; version=5.15.149 <5.15.181; version=6.1.76 <6.1.135; version=642adb03541673f3897f64bbb62856ffd73807f5; version=6.6.15 <6.6.88; version=6.7.3 <6.8; version=6.8; version=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <0686a818d77a431fc3ba2fab4b46bbb04e8c9380; version=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <178e5657c8fd285125cc6743a81b513bce099760; version=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <a77955f7704b2a00385e232cbcc1cb06b5c7a425; version=b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 <ee1fce83ed56450087309b9b74ad9bcb2b010fa6; version=ce16274a6b8d1483d0d8383272deb2bfd1b577ca <5f084993c90d9d0b4a52a349ede5120f992a7ca1

Published CVSS scores

4.7NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.7Canonical UbuntuCVSS:3.1/AV:L/AC:H/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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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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