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]
Metrics
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 176ed1727badd2fad2158e2b214dcbc24f4be7a1, < 899d0353ea69681f474b6bc9de32c663b89672da; >= 0b093176fd0967a5f56e2c86b0d48247f6c0fa0f, < 3e7ecf181cbdde9753204ada3883ca1704d8702b; >= ce16274a6b8d1483d0d8383272deb2bfd1b577ca, < 5f084993c90d9d0b4a52a349ede5120f992a7ca1; >= b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9, < a77955f7704b2a00385e232cbcc1cb06b5c7a425; >= b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9, < 178e5657c8fd285125cc6743a81b513bce099760; >= b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9, < ee1fce83ed56450087309b9b74ad9bcb2b010fa6; >= b89b6a863dd53bc70d8e52d50f9cfaef8ef5e9c9, < 0686a818d77a431fc3ba2fab4b46bbb04e8c9380; 642adb03541673f3897f64bbb62856ffd73807f5; >= 5.15.149, < 5.15.181; >= 6.1.76, < 6.1.135; >= 6.6.15, < 6.6.88; >= 6.7.3, < 6.8 |
| Linux | Linux | 6.8 |
References
- https://git.kernel.org/stable/c/0686a818d77a431fc3ba2fab4b46bbb04e8c9380Patch
- https://git.kernel.org/stable/c/178e5657c8fd285125cc6743a81b513bce099760Patch
- https://git.kernel.org/stable/c/3e7ecf181cbdde9753204ada3883ca1704d8702bPatch
- https://git.kernel.org/stable/c/5f084993c90d9d0b4a52a349ede5120f992a7ca1Patch
- https://git.kernel.org/stable/c/899d0353ea69681f474b6bc9de32c663b89672daPatch
- https://git.kernel.org/stable/c/a77955f7704b2a00385e232cbcc1cb06b5c7a425Patch
- https://git.kernel.org/stable/c/ee1fce83ed56450087309b9b74ad9bcb2b010fa6Patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List
Timeline
- Published
- May 1, 2025
- Last modified
- Oct 15, 2026
- NVD status
- Modified