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

Summary

CVECVE-2025-23151
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-05-01 13:15:51 UTC
Updated2026-07-30 06:22:17 UTC
DescriptionIn 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]

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

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

Problem Types: CWE-362


VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary4.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 176ed1727badd2fad2158e2b214dcbc24f4be7a1 899d0353ea69681f474b6bc9de32c663b89672da git Not specified
CNA Linux Linux affected 0b093176fd0967a5f56e2c86b0d48247f6c0fa0f 3e7ecf181cbdde9753204ada3883ca1704d8702b git Not specified
CNA Linux Linux affected ce16274a6b8d1483d0d8383272deb2bfd1b577ca 5f084993c90d9d0b4a52a349ede5120f992a7ca1 git Not specified
CNA Linux Linux affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 a77955f7704b2a00385e232cbcc1cb06b5c7a425 git Not specified
CNA Linux Linux affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 178e5657c8fd285125cc6743a81b513bce099760 git Not specified
CNA Linux Linux affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 ee1fce83ed56450087309b9b74ad9bcb2b010fa6 git Not specified
CNA Linux Linux affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 0686a818d77a431fc3ba2fab4b46bbb04e8c9380 git Not specified
CNA Linux Linux affected 642adb03541673f3897f64bbb62856ffd73807f5 git Not specified
CNA Linux Linux affected 5.15.149 5.15.181 semver Not specified
CNA Linux Linux affected 6.1.76 6.1.135 semver Not specified
CNA Linux Linux affected 6.6.15 6.6.88 semver Not specified
CNA Linux Linux affected 6.7.3 6.8 semver Not specified
CNA Linux Linux affected 6.8 Not specified
CNA Linux Linux unaffected 6.8 semver Not specified
CNA Linux Linux unaffected 5.15.181 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.135 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.88 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.24 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13.12 6.13.* semver Not specified
CNA Linux Linux unaffected 6.14.3 6.14.* semver Not specified
CNA Linux Linux unaffected 6.15 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/178e5657c8fd285125cc6743a81b513bce099760 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/899d0353ea69681f474b6bc9de32c663b89672da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ee1fce83ed56450087309b9b74ad9bcb2b010fa6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a77955f7704b2a00385e232cbcc1cb06b5c7a425 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3e7ecf181cbdde9753204ada3883ca1704d8702b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/05/msg00045.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List
git.kernel.org/stable/c/5f084993c90d9d0b4a52a349ede5120f992a7ca1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0686a818d77a431fc3ba2fab4b46bbb04e8c9380 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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