CVE-2025-23151
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]
How to fix
- linux linux_kernel5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.15.149 ≤ v < 5.15.181, 6.1.76 ≤ v < 6.1.135, 6.6.15 ≤ v < 6.6.88, 6.7.3 ≤ v < 6.12.24, 6.13 ≤ v < 6.13.12, 6.14 ≤ v < 6.14.3 | 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3 |
| debian debian_linux | 11.0 | — |
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