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CVE-2025-40325

md/raid10: wait barrier before returning discard request with REQ_NOWAIT

MEDIUM
5.5
CVSS Score
Published: April 18, 2025 at 07:01 AM UTC
Updated: October 30, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%

Description

In the Linux kernel, the following vulnerability has been resolved: md/raid10: wait barrier before returning discard request with REQ_NOWAIT raid10_handle_discard should wait barrier before returning a discard bio which has REQ_NOWAIT. And there is no need to print warning calltrace if a discard bio has REQ_NOWAIT flag. Quality engineer usually checks dmesg and reports error if dmesg has warning/error calltrace.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.15.111 ≤ v < 5.165.17 ≤ v < 6.14.239db562b3fedb93978a7e42dd216b306740959f85.15.1115.17c9aa889b035fca4598ae985a0f0c76ebbb547ad2
Vendor states this is fixed in 31d3156efe909b53ba174861a3da880c688f5edc (fixed)
Vendor states this is fixed in 31ff67982c5fa39c0093b9d9f429fef91c2494b7 (fixed)
Vendor states this is fixed in 3db4404435397a345431b45f57876a3df133f3b4 (fixed)
Affected range stops below 5.16, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 6.12.64 (unaffected)
Vendor states this is fixed in 6.14.2 (unaffected)
Vendor states this is fixed in 6.15 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/31d3156efe909b53ba174861a3da880c688f5edc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3db4404435397a345431b45f57876a3df133f3b4
Source: cverecord
https://git.kernel.org/stable/c/31ff67982c5fa39c0093b9d9f429fef91c2494b7
Source: cverecord
https://git.kernel.org/stable/c/29c742ff222dd39335b927a6909c23b8752a053c
Source: cverecord
https://git.kernel.org/stable/c/9fd04328b37b6b911c2556f6dd2625a58c3c30db

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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