CVE-2024-47739

CVE Details

Release Date:

2024-10-21

Description

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

See more information about CVE-2024-47739 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

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

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12887	2024-12-18
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12887	2024-12-18