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 after free in struct ovl_aio_req") not applied yet the kernel could be affected.

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Linux kernel Ext4 file system memory misreference vulnerability

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...

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...

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...

Design/Logic Flaw

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...

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...

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...

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...

SUSE CVE-2009-0747

The ext4isize function in fs/ext4/ext4.h in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 uses the isizehigh structure member during operations on arbitrary types of files, which allows local users to cause a denial of service CPU consumption and error-message flood by...

SUSE CVE-2009-0748

The ext4fillsuper function in fs/ext4/super.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 the superblock configuration, which allows local users to cause a denial of service NULL pointer dereference and OOPS by attempting to mount a crafted ext4...

SUSE CVE-2010-2066

The mextcheckarguments function in fs/ext4/moveextent.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via a MOVEEXT ioctl call that specifies this file as a donor...

SUSE CVE-2014-8086

Race condition in the ext4filewriteiter function in fs/ext4/file.c in the Linux kernel through 3.17 allows local users to cause a denial of service file unavailability via a combination of a write action and an FSETFL fcntl operation for the ODIRECT flag...

SUSE CVE-2015-8324

The ext4 implementation in the Linux kernel before 2.6.34 does not properly track the initialization of certain data structures, which allows physically proximate attackers to cause a denial of service NULL pointer dereference and panic via a crafted USB device, related to the ext4fillsuper...

SUSE CVE-2016-10208

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service out-of-bounds read and system crash via a crafted ext4 image...

SUSE CVE-2018-10840

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4xattrsetentry function. An attacker could exploit this by operating on a mounted crafted ext4 image...

SUSE CVE-2018-10876

A flaw was found in Linux kernel in the ext4 filesystem code. A use-after-free is possible in ext4extremovespace function when mounting and operating a crafted ext4 image...

SUSE CVE-2019-19447

In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4putsuper in fs/ext4/super.c, related to dumporphanlist in fs/ext4/super.c...

PT-2023-33483 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v6.0.18 Description: The issue is related to the ext4 file system, specifically with marking an no delete evicting inode dirty. The actual impact and attack plausibility have not yet been proven. Recommendations...

PT-2023-33961 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.87 Description: A potential security issue has been identified in the ext4 file system. The issue is related to the handling of bad inodes. The actual impact and attack plausibility have not yet been prove...

PT-2023-34316 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.10.163 Description: The issue is related to the ext4 file system, specifically in the ext4 get branch function. It involves an error code return to user-space. The actual impact and attack plausibility have n...