CVE-2026-31702

A flaw was found in the Linux kernel's F2FS (Flash-Friendly File System) component. A use-after-free vulnerability exists in the f2fs_compress_write_end_io() function. This flaw is caused by a race condition during the compressed writeback completion path, where the system attempts to access memory that has already been deallocated. A local attacker could potentially exploit this to cause a system crash, leading to a denial of service.