Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: clk: scpi: bound-check DVFS index in scpi_dvfs_recalc_rate dvfs_get_idx() may return an out-of-range index if the SCP firmware is buggy or returns a stale value. Only negative indexes were rejected, so a large index walked past info->opps and could treat garbage as a clock rate (KASAN OOB / wrong frequency to consumers). The missing upper bound dates back to the original SCPI clock driver. Treat indexes >= opp count as invalid and return 0, same as idx < 0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 6e3b55823da8ef0d99621efb422cc29f50d7f280; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 7204095917aeaac89db7377c29a457351a19b076; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 0f89e2ac0e945da2ce798f6a61aebf9d291c2e0a; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 56b7a9d89c67932bf11b71e3b6d17941fc24a393; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before a82b274697d0876b478594ca78ad1e6cb062467b; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before e1188332a9110cf3635fe286481ee38305b3c2b6; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 108c46e8dacc4a0e472a74f98171115d49cbc079; affected cd52c2a4b5c43631e429d06dce12e08b0cab477f before 70f4b78d560e592cbf3325b162424737d032fc1d |
| Linux / Linux | affected 4.4; unaffected 0 before 4.4; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/6e3b55823da8ef0d99621efb422cc29f50d7f280
- https://git.kernel.org/stable/c/7204095917aeaac89db7377c29a457351a19b076
- https://git.kernel.org/stable/c/0f89e2ac0e945da2ce798f6a61aebf9d291c2e0a
- https://git.kernel.org/stable/c/56b7a9d89c67932bf11b71e3b6d17941fc24a393
- https://git.kernel.org/stable/c/a82b274697d0876b478594ca78ad1e6cb062467b
- https://git.kernel.org/stable/c/e1188332a9110cf3635fe286481ee38305b3c2b6
- https://git.kernel.org/stable/c/108c46e8dacc4a0e472a74f98171115d49cbc079
- https://git.kernel.org/stable/c/70f4b78d560e592cbf3325b162424737d032fc1d