发布于3月6日3月6日 Members Ubuntu: (Multiple Advisories) (CVE-2023-1583): Linux kernel (OEM) vulnerabilities Severity 5 CVSS (AV:L/AC:L/Au:S/C:N/I:N/A:C) Published 03/24/2023 Created 05/05/2023 Added 04/21/2023 Modified 01/28/2025 Description A NULL pointer dereference was found in io_file_bitmap_get in io_uring/filetable.c in the io_uring sub-component in the Linux Kernel. When fixed files are unregistered, some context information (file_alloc_{start,end} and alloc_hint) is not cleared. A subsequent request that has auto index selection enabled via IORING_FILE_INDEX_ALLOC can cause a NULL pointer dereference. An unprivileged user can use the flaw to cause a system crash. Solution(s) ubuntu-upgrade-linux-image-6-1-0-1009-oem ubuntu-upgrade-linux-image-6-2-0-1003-ibm ubuntu-upgrade-linux-image-6-2-0-1005-aws ubuntu-upgrade-linux-image-6-2-0-1005-azure ubuntu-upgrade-linux-image-6-2-0-1005-lowlatency ubuntu-upgrade-linux-image-6-2-0-1005-lowlatency-64k ubuntu-upgrade-linux-image-6-2-0-1005-oracle ubuntu-upgrade-linux-image-6-2-0-1006-kvm ubuntu-upgrade-linux-image-6-2-0-1006-raspi ubuntu-upgrade-linux-image-6-2-0-1006-raspi-nolpae ubuntu-upgrade-linux-image-6-2-0-1007-gcp ubuntu-upgrade-linux-image-6-2-0-23-generic ubuntu-upgrade-linux-image-6-2-0-23-generic-64k ubuntu-upgrade-linux-image-6-2-0-23-generic-lpae ubuntu-upgrade-linux-image-aws ubuntu-upgrade-linux-image-azure ubuntu-upgrade-linux-image-gcp ubuntu-upgrade-linux-image-generic ubuntu-upgrade-linux-image-generic-64k ubuntu-upgrade-linux-image-generic-lpae ubuntu-upgrade-linux-image-ibm ubuntu-upgrade-linux-image-kvm ubuntu-upgrade-linux-image-lowlatency ubuntu-upgrade-linux-image-lowlatency-64k ubuntu-upgrade-linux-image-oem-22-04c ubuntu-upgrade-linux-image-oracle ubuntu-upgrade-linux-image-raspi ubuntu-upgrade-linux-image-raspi-nolpae ubuntu-upgrade-linux-image-virtual References https://attackerkb.com/topics/cve-2023-1583 CVE - 2023-1583 USN-6033-1 USN-6175-1 USN-6186-1
