fkie_cve-2025-23151
Vulnerability from fkie_nvd
Published
2025-05-01 13:15
Modified
2025-11-05 17:58
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0686a818d77a431fc3ba2fab4b46bbb04e8c9380Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/178e5657c8fd285125cc6743a81b513bce099760Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3e7ecf181cbdde9753204ada3883ca1704d8702bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f084993c90d9d0b4a52a349ede5120f992a7ca1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/899d0353ea69681f474b6bc9de32c663b89672daPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a77955f7704b2a00385e232cbcc1cb06b5c7a425Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee1fce83ed56450087309b9b74ad9bcb2b010fa6Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00045.htmlMailing List
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
debian debian_linux 11.0


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: host: Fix race between unprepare and queue_buf\n\nA client driver may use mhi_unprepare_from_transfer() to quiesce\nincoming data during the client driver\u0027s tear down. The client driver\nmight also be processing data at the same time, resulting in a call to\nmhi_queue_buf() which will invoke mhi_gen_tre(). If mhi_gen_tre() runs\nafter mhi_unprepare_from_transfer() has torn down the channel, a panic\nwill occur due to an invalid dereference leading to a page fault.\n\nThis occurs because mhi_gen_tre() does not verify the channel state\nafter locking it. Fix this by having mhi_gen_tre() confirm the channel\nstate is valid, or return error to avoid accessing deinitialized data.\n\n[mani: added stable tag]"
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  "lastModified": "2025-11-05T17:58:11.293",
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