kernel: Linux kernel ext4: Information Disclosure via uninitialized memory leak in fast-commit journal

A flaw was found in the Linux kernel. A local attacker could exploit an information disclosure vulnerability by not properly zeroing out unused space at the end of fast-commit journal blocks in the ext4 filesystem. This could lead to the leakage of uninitialized memory to disk, potentially allowi...

kernel: ext4: don't set up encryption key during jbd2 transaction

A flaw exists in the ext4 filesystem implementation in the Linux kernel such that the function ext4unlink extended a journaling transaction too far so that it included a call to ext4findentry. However, ext4findentry may need to set up a directory’s encryption key — which can cause a deadlock when...

kernel: ext4: fix deadlock due to mbcache entry corruption

A deadlock vulnerability was found in the ext4 filesystem in the Linux kernel. When manipulating extended attribute xattr blocks, a race condition in non-atomic bitfield updates can cause the mbcache entry state to become corrupted. This leads to an infinite loop in ext4xattrblockset where the co...

PT-2025-41051

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.1.0-rc4-syzkaller-62821-gcb231e2f67ec Description The Linux kernel contains a flaw in the ext4 filesystem implementation. Specifically, the ext4 evict inode function accesses an uninitialized value, potentially...

AZL-26689 CVE-2023-2513 affecting package kernel for versions less than 5.15.112.1-1

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

CVE-2023-2513

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

Design/Logic Flaw

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

CVE-2023-2513

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

CVE-2023-2513

A use-after-free vulnerability was found in the Linux kernel's ext4 filesystem in the way it handled the extra inode size for extended attributes. This flaw could allow a privileged local user to cause a system crash or other undefined behaviors...

Ubuntu 16.04 ESM : Linux kernel (AWS) vulnerabilities (USN-6001-1)

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6001-1 advisory. Xuewei Feng, Chuanpu Fu, Qi Li, Kun Sun, and Ke Xu discovered that the TCP implementation in the Linux kernel did not properly handle IPID assignment. A...

Ubuntu: Security Advisory (USN-6001-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

DEBIAN-CVE-2023-1252

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 "ovl: fix use...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. The Linux kernel suffers from a memory misreference vulnerability that stems from a mix-up in the instructions responsible for freeing memory in the Ext4 file system, which cou...

K94735334: Linux kernel vulnerability CVE-2018-10883

Security Advisory Description A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write in jbd2journaldirtymetadata, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image. CVE-2018-10883 Impact A local user...

SUSE CVE-2009-0746

The makeindexeddir function in fs/ext4/namei.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate a certain reclen field, which allows local users to cause a denial of service OOPS by attempting to mount a crafted ext4 filesystem...

SUSE CVE-2009-4307

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service divide-by-zero error and panic via a malformed ext4 filesystem containing a super block with a large FLEXBG group size aka sloggroupsperflex...

SUSE CVE-2011-2493

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel before 2.6.39 does not properly initialize a certain error-report data structure, which allows local users to cause a denial of service OOPS by attempting to mount a crafted ext4 filesystem...

SUSE CVE-2011-4086

The journalunmapbuffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the Delay and Unwritten buffer head states, which allows local users to cause a denial of service system crash by leveraging the presence of an ext4 filesystem that was mounted with ...

SUSE CVE-2012-4508

Race condition in fs/ext4/extents.c in the Linux kernel before 3.4.16 allows local users to obtain sensitive information from a deleted file by reading an extent that was not properly marked as uninitialized...

SUSE CVE-2013-2015

The ext4orphandel function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems, which allows physically proximate attackers to cause a denial of service system hang via a crafted filesystem on removable media, as demonstrate...