description: 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.
problem types: CWE-416
affected:
{
vendor: n/a
product: Kernel
versions:
version: Linux kernel 5.16-rc1, status: affected
}