GHSA-656h-33vg-5h9x

GHSA-656h-33vg-5h9x PUBLISHED CVSS 5.5 MEDIUM

Record from GitHub Advisory Database · Published July 3, 2025

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic. Panic backtrace: [ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init! [ rjw: New subject ]

Risk scores

CVSS 3.1

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Timeline

Jul 3, 2025 CVE Published
Apr 10, 2026 Security Advisory

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vulnetix vdb vuln GHSA-656h-33vg-5h9x
vulnetix vdb fixes GHSA-656h-33vg-5h9x

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  "https://api.vdb.vulnetix.com/v2/vuln/GHSA-656h-33vg-5h9x/fixes/registry"

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