CVE-2024-47739

Severity CVSS v4.0:

Pending analysis

Type:

CWE-190 Integer Overflow or Wraparound

Publication date:

21/10/2024

Last modified:

03/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved: padata: use integer wrap around to prevent deadlock on seq_nr overflow When submitting more than 2^32 padata objects to padata_do_serial, the current sorting implementation incorrectly sorts padata objects with overflowed seq_nr, causing them to be placed before existing objects in the reorder list. This leads to a deadlock in the serialization process as padata_find_next cannot match padata->seq_nr and pd->processed because the padata instance with overflowed seq_nr will be selected next. To fix this, we use an unsigned integer wrap around to correctly sort padata objects in scenarios with integer overflow.

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::::::::	5.4 (including)	5.10.227 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.168 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.113 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.54 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.10.13 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.11 (including)	6.11.2 (excluding)

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

CVE-2024-47739

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools