kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image

A use-after-free flaw was found in fs/ext4/namei.c:dxinsertblock in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service...

The vulnerability in the fs/namei.c function of the Linux operating system allows a hacker to cause a service failure.

The vulnerability in the fs/namei.c function of the Linux operating system relates to the use of memory after it is freed. Exploitation could allow an attacker to cause a service failure...

Linux kernel null pointer dereference vulnerability (CNVD-2019-42387)

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A null pointer dereference vulnerability exists in ext4emptydir in fs/ext4/namei.c in Linux kernel 5.3.12 and earlier...