PT-2024-14650 · Linux+6 · Linux Kernel+6
Xinglong Yang
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Published
2024-01-22
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Updated
2026-03-14
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CVE-2023-52608
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/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 firmware arm scmi in the Linux kernel, where a race condition can occur on the A2P channel. When an SCMI command times out, the channel ownership remains with the platform until a late reply is received. Once the late reply is received, the channel ownership is given back to the agent, and any pending request can proceed, overwriting the SMT area of the just delivered late reply. However, the spurious IRQ related to the late reply can be wrongly associated with the freshly enqueued request, fooling the SCMI stack in-flight lookup procedure. This can be detected by looking at the channel status bits, where a genuine reply from the platform will have set the channel free bit before triggering the completion IRQ. A consistency check has been added to validate this condition in the A2P ISR.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Race Condition
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu