CVE-2026-53293 Details
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)
A vulnerability in the Linux kernel's AMDGPU driver allows for improper handling of Memory-Mapped Register (MMR) read operations. This issue arises from a flawed sequence between the reset semaphore and the memory management lock, leading to potential deadlocks. Specifically, the driver allocated memory while holding the reset semaphore, a significant error that could cause a deadlock situation. Additionally, the driver used a non-blocking read lock instead of waiting for the reset process to complete, which could result in inconsistent behavior. These issues were introduced in versions of the Linux kernel prior to the latest stable release.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0ef196a208385b7d7da79f411c161b04e97283e2 | kernel.org | Patch |
| https://git.kernel.org/stable/c/5c29d20470d4566d1b68df57097d642d01f8b427 | kernel.org | Patch |
| https://git.kernel.org/stable/c/61957c2e467b39b528a290016367d32a433fa846 | kernel.org | Patch |
| https://git.kernel.org/stable/c/8c4254c8f5836e77ae83e7fc037f02b69f7a0977 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a31c3feb54b15a90232e497ad0e27e8a82052d8d | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-667 | Improper Locking | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.6.55, < 6.6.141 >= 6.10.14, < 6.11 >= 6.11.3, < 6.12.91 >= 6.13, < 6.18.33 >= 6.19, < 7.0.10 7.1 rc1 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 26, 2026 | New CVE Received | kernel.org |