The vulnerability of the ext4_mbrelease_group_pa() function in the fs/ext4/mballoc.c module of the Ext4 file system in the Linux operating system allows a attacker to cause a service failure.

🗓️ 03 Apr 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType

bdu_fstec

bdu_fstec🔗 bdu.fstec.ru👁 1 Views

A vulnerability in ext4_mbrelease_group_pa in the Ext4 mballoc module on Linux can cause service failure due to an exploitable condition.

Reporter	Title	Published	Views	Family All 41
Tenable Nessus	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-184)	8 Jun 202300:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2-2023-2100 (ALAS-2023-2100)	1 Jul 202300:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-034 (ALASKERNEL-5.10-2023-034)	29 Jun 202300:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-021 (ALASKERNEL-5.15-2023-021)	29 Jun 202300:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-047 (ALASKERNEL-5.4-2023-047)	29 Jun 202300:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2501)	11 Dec 202500:00	–	nessus
Tenable Nessus	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2025-2522)	11 Dec 202500:00	–	nessus
Tenable Nessus	EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2025-2609)	31 Dec 202500:00	–	nessus
Tenable Nessus	EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2025-2623)	31 Dec 202500:00	–	nessus
Tenable Nessus	Photon OS 4.0: Linux PHSA-2021-4.0-0065	22 Jul 202100:00	–	nessus

Vulners

Node

red_hat red_hat_enterprise_linuxMatch7

OR

red_hat red_hat_enterprise_linuxMatch8

OR

red_hat red_hat_enterprise_linuxMatch9

Source	Link
cve	www.cve.org/CVERecord
git	www.git.kernel.org/stable/c/ef16d8a1798db1a1604ac44ca1bd73ec6bebf483
git	www.git.kernel.org/stable/c/185062a21976fbc38f2efd296951b02c4500cf65
git	www.git.kernel.org/stable/c/b0fc279de4bf17e1710bb7e83906538ff8f11111
git	www.git.kernel.org/stable/c/978e5e9111af18741449b81fefd531a622dd969a
git	www.git.kernel.org/stable/c/d87a4e4094c9879fc8acdff8ce59fdffa979c8e0
git	www.git.kernel.org/stable/c/bf2a16eb4e6d06124bd8436d4546f61539a65f29
git	www.git.kernel.org/stable/c/53c14e7cc2257191ba15425c15638fc4f8abb92b
git	www.git.kernel.org/linus/463808f237cf73e98a1a45ff7460c2406a150a0b
kernel	www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.315

03 Apr 2026 00:00Current

6Medium risk

Vulners AI Score6

CVSS 24.6

CVSS 35.5

EPSS0.0015

ext4 mbrelease mballoc module linux vulnerability service failure exploitable condition ext4 file system