CVE-2025-38113

MEDIUM EPSS 5.3%
Published Jul 3, 202512mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 3, 2025 12mo ago
Last Modified Jun 17, 2026 1w ago

Description

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 ]

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥5.19  –  <6.1.142
linuxlinux_kernel*≥6.2  –  <6.6.94
linuxlinux_kernel*≥6.7  –  <6.12.34
linuxlinux_kernel*≥6.13  –  <6.15.3
linuxlinux_kernel6.16any
debiandebian_linux11.0any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0
    Patch