CVE-2024-56768

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

06/01/2025

Last modified:

01/10/2025

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix bpf_get_smp_processor_id() on !CONFIG_SMP On x86-64 calling bpf_get_smp_processor_id() in a kernel with CONFIG_SMP disabled can trigger the following bug, as pcpu_hot is unavailable: [ 8.471774] BUG: unable to handle page fault for address: 00000000936a290c [ 8.471849] #PF: supervisor read access in kernel mode [ 8.471881] #PF: error_code(0x0000) - not-present page Fix by inlining a return 0 in the !CONFIG_SMP case.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	6.10 (including)	6.12.8 (excluding)
cpe:2.3:o:linux:linux_kernel:6.13:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.13:rc2::::::
cpe:2.3:o:linux:linux_kernel:6.13:rc3::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-56768

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools