PT-2024-26751 · Linux+2 · Linux Kernel+2
Published
2024-05-17
·
Updated
2025-10-17
·
CVE-2024-35818
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the removal of explicit invocations of
mmiowb() in drivers, which may cause problems with MMIO writes between CPUs using lock-free synchronization. The mmio in radeon ring commit() is protected by a mutex rather than a spinlock, but in the mutex fastpath, it behaves similar to a spinlock. To resolve this, the io aw() hook is defined as mmiowb() in the architectural code. Without this fix, errors occur when running glxgears on weak ordering architectures like LoongArch, including GPU lockups and failed scheduling of IB.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Red Os