CVE-2022-49451

low-risk
Published 2025-02-26

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix list protocols enumeration in the base protocol While enumerating protocols implemented by the SCMI platform using BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is currently validated in an improper way since the check employs a sum between unsigned integers that could overflow and cause the check itself to be silently bypassed if the returned value 'loop_num_ret' is big enough. Fix the validation avoiding the addition.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (7)

Patch https://git.kernel.org/stable/c/1052f22e127d0c34c3387bb389424ba1c61491ff
Patch https://git.kernel.org/stable/c/2ccfcd7a09c826516edcfe464b05071961aada3f
Patch https://git.kernel.org/stable/c/444a2d27fe9867d0da4b28fc45b793f32e099ab8
Patch https://git.kernel.org/stable/c/6e7978695f4a6cbd83616b5a702b77fa2087b247
Patch https://git.kernel.org/stable/c/8009120e0354a67068e920eb10dce532391361d0
Patch https://git.kernel.org/stable/c/98342148a8cd242855d7e257f298c966c96dba9f
Patch https://git.kernel.org/stable/c/b0e4bafac8963c2d85ee18d3d01f393735acceec
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal