bus: mhi: host: Fix race between unprepare and queue_buf
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
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]
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15.149 to before 5.15.181; 6.1.76 to before 6.1.135; 6.6.15 to before 6.6.88; 6.7.3 to before 6.8 | 5.15.181, 6.1.135, 6.6.88, 6.8 | Patch available | CNA |
| Linux | Linux | 6.8 and later | 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.149 to before 5.15.181; 6.1.76 to before 6.1.135; 6.6.15 to before 6.6.88; 6.7.3 to before 6.8 Fixed in 5.15.181, 6.1.135, 6.6.88, 6.8 Patch available CNA
- Linux VendorLinux Affected 6.8 and later Fixed in 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15.149 to before 5.15.181; 6.1.76 to before 6.1.135; 6.6.15 to before 6.6.88; 6.7.3 to before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.3 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.149 to before 5.15.181; 6.1.76 to before 6.1.135; 6.6.15 to before 6.6.88; 6.7.3 to before 6.12.24; 6.13 to before 6.13.12; 6.14 to before 6.14.3 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.181, 6.1.135, 6.6.88, 6.8
- Fix · CNA Linux (Linux) Fixed in 5.15.181, 6.1.135, 6.6.88, 6.12.24, 6.13.12, 6.14.3, 6.15
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2025-23151
- 2026-10-03 Alias added: GHSA-53c5-74px-fwch
- 2026-10-16 CISA SSVC decision points changed
References
Patch 7
- https://git.kernel.org/stable/c/899d0353ea69681f474b6bc9de32c663b89672da
- https://git.kernel.org/stable/c/3e7ecf181cbdde9753204ada3883ca1704d8702b
- https://git.kernel.org/stable/c/5f084993c90d9d0b4a52a349ede5120f992a7ca1
- https://git.kernel.org/stable/c/a77955f7704b2a00385e232cbcc1cb06b5c7a425
- https://git.kernel.org/stable/c/178e5657c8fd285125cc6743a81b513bce099760
- https://git.kernel.org/stable/c/ee1fce83ed56450087309b9b74ad9bcb2b010fa6
- https://git.kernel.org/stable/c/0686a818d77a431fc3ba2fab4b46bbb04e8c9380
More Linux Kernel vulnerabilities
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-23151 · CVE Program
- CVE-2025-23151 · NVD
- FIRST EPSS
- GHSA-53c5-74px-fwch · GitHub Advisory Database · CC BY 4.0
- CVE-2025-23151 · Red Hat security data · CC BY 4.0
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