USN-3871-5 linux-azure vulnerabilities

Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service system crash or possibly execute arbitrary code...

kernel: NULL pointer dereference in ext4/mballoc.c:ext4_process_freed_data() when mounting crafted ext4 image

The Linux kernel is vulnerable to a NULL pointer dereference in the ext4/mballoc.c:ext4processfreeddata function. An attacker could trick a legitimate user or a privileged attacker could exploit this by mounting a crafted ext4 image to cause a kernel panic...

CVE-2018-1094

The ext4fillsuper function in fs/ext4/super.c in the Linux kernel through 4.15.15 does not always initialize the crc32c checksum driver, which allows attackers to cause a denial of service ext4xattrinodehash NULL pointer dereference and system crash via a crafted ext4 image...

kernel: ext4: power failure during write(2) causes on-disk information leak

A vulnerability was found in the Linux kernel where filesystems mounted with data=ordered mode may allow an attacker to read stale data from recently allocated blocks in new files after a system 'reset' by abusing ext4 mechanics of delayed allocation...

USN-3361-1 linux-hwe vulnerabilities

USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu...

USN-3234-2 linux-lts-xenial vulnerabilities

USN-3234-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not...

USN-3234-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities

Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta block groups. An attacker with physical access could use this to specially craft an ext4 image that causes a denial of service system crash. CVE-2016-10208 It was discovered that the Linux...

UBUNTU-CVE-2015-8961

The ext4journalstop function in fs/ext4/ext4jbd2.c in the Linux kernel before 4.3.3 allows local users to gain privileges or cause a denial of service use-after-free by leveraging improper access to a certain error field...

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...

kernel: ext4: fix inconsistency in ext4_fill_flex_info()

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem...

kernel: ext4: ext4_isize() denial of service

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...

DEBIAN-CVE-2023-53835

In the Linux kernel, the following vulnerability has been resolved: ext4: don't clear SBRDONLY when remounting r/w until quota is re-enabled When a file system currently mounted read/only is remounted read/write, if we clear the SBRDONLY flag too early, before the quota is initialized, and there ...