CVE-2026-43274
Published: May 6, 2026
Modified: May 11, 2026
CVSS v3.1
8.4
Description
In the Linux kernel, the following vulnerability has been resolved: mailbox: mchp-ipc-sbi: fix out-of-bounds access in mchp_ipc_get_cluster_aggr_irq() The cluster_cfg array is dynamically allocated to hold per-CPU configuration structures, with its size based on the number of online CPUs. Previously, this array was indexed using hartid, which may be non-contiguous or exceed the bounds of the array, leading to out-of-bounds access. Switch to using cpuid as the index, as it is guaranteed to be within the valid range provided by for_each_online_cpu().
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected e4b1d67e71419c4af581890ecea84b04920d4116 - < 95438699c92947155823dcd3918049a07f3cd867affected e4b1d67e71419c4af581890ecea84b04920d4116 - < 0442b6229e2eedc95a6d3d18ce75dec7f5b5377caffected e4b1d67e71419c4af581890ecea84b04920d4116 - < f7c330a8c83c9b0332fd524097eaf3e69148164d |
Linux | Linux | affected 6.14unaffected 0 - < 6.14unaffected 6.18.16 - <= 6.18.*unaffected 6.19.6 - <= 6.19.*unaffected 7.0 - <= * |
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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