CVE-2022-49451

firmware: arm_scmi: Fix list protocols enumeration in the base protocol

State: Published
Severity: 8.4 High
Published: Feb 26, 2025
Updated: Aug 5, 2026
Reserved: Feb 26, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.4 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-190 Integer Overflow or Wraparound

Affected Products

Product	Versions
LinuxLinux	b6f20ff8bd94ad34032804a60bab5ee56752007e to before 444a2d27fe9867d0da4b28fc45b793f32e099ab8Affected b6f20ff8bd94ad34032804a60bab5ee56752007e to before b0e4bafac8963c2d85ee18d3d01f393735acceecAffected b6f20ff8bd94ad34032804a60bab5ee56752007e to before 1052f22e127d0c34c3387bb389424ba1c61491ffAffected b6f20ff8bd94ad34032804a60bab5ee56752007e to before 98342148a8cd242855d7e257f298c966c96dba9fAffected b6f20ff8bd94ad34032804a60bab5ee56752007e to before 6e7978695f4a6cbd83616b5a702b77fa2087b247Affected b6f20ff8bd94ad34032804a60bab5ee56752007e to before 2ccfcd7a09c826516edcfe464b05071961aada3fAffected b6f20ff8bd94ad34032804a60bab5ee56752007e to before 8009120e0354a67068e920eb10dce532391361d0Affected
LinuxLinux	4.17Affected before 4.17Not affected 4.19.247 through 4.19.Not affected 5.4.198 through 5.4.Not affected 5.10.121 through 5.10.Not affected 5.15.46 through 5.15.Not affected 5.17.14 through 5.17.Not affected 5.18.3 through 5.18.Not affected 5.19 and laterNot affected

Product

Versions

LinuxLinux

b6f20ff8bd94ad34032804a60bab5ee56752007e to before 444a2d27fe9867d0da4b28fc45b793f32e099ab8Affected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before b0e4bafac8963c2d85ee18d3d01f393735acceecAffected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before 1052f22e127d0c34c3387bb389424ba1c61491ffAffected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before 98342148a8cd242855d7e257f298c966c96dba9fAffected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before 6e7978695f4a6cbd83616b5a702b77fa2087b247Affected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before 2ccfcd7a09c826516edcfe464b05071961aada3fAffected
b6f20ff8bd94ad34032804a60bab5ee56752007e to before 8009120e0354a67068e920eb10dce532391361d0Affected

LinuxLinux

4.17Affected
before 4.17Not affected
4.19.247 through 4.19.*Not affected
5.4.198 through 5.4.*Not affected
5.10.121 through 5.10.*Not affected
5.15.46 through 5.15.*Not affected
5.17.14 through 5.17.*Not affected
5.18.3 through 5.18.*Not affected
5.19 and laterNot affected

References

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