CVE-2023-1192 Information

Description

A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call there are still local variable points to the memory region and if the system call frees it faster than CIFS uses it CIFS will access a free memory region leading to a denial of service.

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=2154178 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=98bea253aa28ad8be2ce565a9ca21beb4a9419e5 https://access.redhat.com/security/cve/CVE-2023-1192