CVE-2025-23151

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

State: Published
Severity: 7.8 High
Published: May 1, 2025
Updated: Oct 15, 2026
Reserved: Jan 11, 2025

Description

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]

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	176ed1727badd2fad2158e2b214dcbc24f4be7a1 to before 899d0353ea69681f474b6bc9de32c663b89672daAffected 0b093176fd0967a5f56e2c86b0d48247f6c0fa0f to before 3e7ecf181cbdde9753204ada3883ca1704d8702bAffected ce16274a6b8d1483d0d8383272deb2bfd1b577ca to before 5f084993c90d9d0b4a52a349ede5120f992a7ca1Affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before a77955f7704b2a00385e232cbcc1cb06b5c7a425Affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before 178e5657c8fd285125cc6743a81b513bce099760Affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before ee1fce83ed56450087309b9b74ad9bcb2b010fa6Affected b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before 0686a818d77a431fc3ba2fab4b46bbb04e8c9380Affected 642adb03541673f3897f64bbb62856ffd73807f5Affected 5.15.149 to before 5.15.181Affected 6.1.76 to before 6.1.135Affected 6.6.15 to before 6.6.88Affected 6.7.3 to before 6.8Affected
LinuxLinux	6.8Affected before 6.8Not affected 5.15.181 through 5.15.Not affected 6.1.135 through 6.1.Not affected 6.6.88 through 6.6.Not affected 6.12.24 through 6.12.Not affected 6.13.12 through 6.13.Not affected 6.14.3 through 6.14.Not affected 6.15 and laterNot affected

Product

Versions

LinuxLinux

176ed1727badd2fad2158e2b214dcbc24f4be7a1 to before 899d0353ea69681f474b6bc9de32c663b89672daAffected
0b093176fd0967a5f56e2c86b0d48247f6c0fa0f to before 3e7ecf181cbdde9753204ada3883ca1704d8702bAffected
ce16274a6b8d1483d0d8383272deb2bfd1b577ca to before 5f084993c90d9d0b4a52a349ede5120f992a7ca1Affected
b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before a77955f7704b2a00385e232cbcc1cb06b5c7a425Affected
b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before 178e5657c8fd285125cc6743a81b513bce099760Affected
b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before ee1fce83ed56450087309b9b74ad9bcb2b010fa6Affected
b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9 to before 0686a818d77a431fc3ba2fab4b46bbb04e8c9380Affected
642adb03541673f3897f64bbb62856ffd73807f5Affected
5.15.149 to before 5.15.181Affected
6.1.76 to before 6.1.135Affected
6.6.15 to before 6.6.88Affected
6.7.3 to before 6.8Affected

LinuxLinux

6.8Affected
before 6.8Not affected
5.15.181 through 5.15.*Not affected
6.1.135 through 6.1.*Not affected
6.6.88 through 6.6.*Not affected
6.12.24 through 6.12.*Not affected
6.13.12 through 6.13.*Not affected
6.14.3 through 6.14.*Not affected
6.15 and laterNot affected

References

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