Skip to content
Noroxi
CVE-2025-23151· NVD / CVE Program· CNA Linux

bus: mhi: host: Fix race between unprepare and queue_buf

Noroxi assessment

Priority: Monitor (action score 18/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.15% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 0686a818d77a431fc3ba2fab4b46bbb04e8c9380, 178e5657c8fd285125cc6743a81b513bce099760, 3e7ecf181cbdde9753204ada3883ca1704d8702b.
  • Severity is disputed: the assigning authority (CNA) scores it 7.8, NVD 4.7.

Low priority for now. Upgrade to Linux Linux 0686a818d77a431fc3ba2fab4b46bbb04e8c9380, 178e5657c8fd285125cc6743a81b513bce099760, 3e7ecf181cbdde9753204ada3883ca1704d8702b or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Fix race between unprepare and queue_buf A client driver may use mhi_unprepare_from_transfer() to quiesce incoming data during the client driver's tear down. The client driver might also be processing data at the same time, resulting in a call to mhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs after mhi_unprepare_from_transfer() has torn down the channel, a panic will occur due to an invalid dereference leading to a page fault. This occurs because mhi_gen_tre() does not verify the channel state after locking it. Fix this by having mhi_gen_tre() confirm the channel state is valid, or return error to avoid accessing deinitialized data. [mani: added stable tag]

MediumCVSS 4.7 · v3.1—No exploit Fix available
Published
May 1, 2025
Updated
Oct 15, 2026
EPSS
0.1% · 4th percentile

Report tools

JSON

Action score

18

Monitor

Low priority for now.

CVSS
18 / 40 · 4.7 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.7
CNA · Linux
7.8
3.1 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-23151

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

Your free account also gets you

Running WordPress? Scan your site free with WP Lens

  • Stack alerts: add the products and versions you run, get the new CVEs that affect them
  • Uptime monitoring: 1 site, instant email when it goes down
  • Add your domain: subdomains and takeover risk scanned every week (1 domain)
  • 10 scans an hour on the security tools (3 a day without an account), an API key and MCP
  • All your scans in one panel: findings, what changed in the last scan, a report per domain or per client (PDF, share link)
All free tools

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Don't want an account? Get "Exploited this week" by email every MondayDon't want an account? RSS feed for linux records

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel6.1.76 and later · before 6.1.135
  • linux linux kernel6.6.15 and later · before 6.6.88
  • linux linux kernel5.15.149 and later · before 5.15.181
  • linux linux kernel6.13 and later · before 6.13.12
  • linux linux kernel6.14 and later · before 6.14.3
  • linux linux kernel6.7.3 and later · before 6.12.24

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 642adb03541673f3897f64bbb62856ffd73807f5, 6.8affected
    • 176ed1727badd2fad2158e2b214dcbc24f4be7a1 and later · before 899d0353ea69681f474b6bc9de32c663b89672daaffected · git
    • 0b093176fd0967a5f56e2c86b0d48247f6c0fa0f and later · before 3e7ecf181cbdde9753204ada3883ca1704d8702baffected · git
    • ce16274a6b8d1483d0d8383272deb2bfd1b577ca and later · before 5f084993c90d9d0b4a52a349ede5120f992a7ca1affected · git
    • b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 and later · before a77955f7704b2a00385e232cbcc1cb06b5c7a425affected · git
    • b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 and later · before 178e5657c8fd285125cc6743a81b513bce099760affected · git
    • b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 and later · before ee1fce83ed56450087309b9b74ad9bcb2b010fa6affected · git
    • b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 and later · before 0686a818d77a431fc3ba2fab4b46bbb04e8c9380affected · git
    • 5.15.149 and later · before 5.15.181affected · semver
    • 6.1.76 and later · before 6.1.135affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.135-16.1.135-1
Debian:13linuxbefore 6.12.25-16.12.25-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-23143May 1, 2025 · net: Fix null-ptr-deref by sock_lock_init_class_and_name() and rmmod.
    22Monitor
  • ← EarlierCVE-2025-23145May 1, 2025 · mptcp: fix NULL pointer in can_accept_new_subflow
    22Monitor
  • Later →CVE-2025-37738May 1, 2025 · ext4: ignore xattrs past end
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0686a818d77a431fc3ba2fab4b46bbb04e8c9380Vendor (CNA)
Linux Linux178e5657c8fd285125cc6743a81b513bce099760Vendor (CNA)
Linux Linux3e7ecf181cbdde9753204ada3883ca1704d8702bVendor (CNA)
Linux Linux5.15.181Vendor (CNA)
Linux Linux5f084993c90d9d0b4a52a349ede5120f992a7ca1Vendor (CNA)
Linux Linux6.1.135Vendor (CNA)
Linux Linux6.6.88Vendor (CNA)
Linux Linux6.8Vendor (CNA)
Linux Linux899d0353ea69681f474b6bc9de32c663b89672daVendor (CNA)
Linux Linuxa77955f7704b2a00385e232cbcc1cb06b5c7a425Vendor (CNA)
Linux Linuxee1fce83ed56450087309b9b74ad9bcb2b010fa6Vendor (CNA)
debian:linux6.1.135-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. SSVC exploitation— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records