Copyright © 2012 Red Hat, Inc. All rights reserved. Moderate 2026-05-27T00:00:00 kernel: ibmasm: fix OOB reads in command_file_write due to missing size checks 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-1284

A flaw was found in the Linux kernel's ibmasm module. This vulnerability, an out-of-bounds read in the `command_file_write` function, allows an attacker to cause the system to read beyond the intended memory boundaries. By manipulating the allocation size and header fields, an attacker can trigger this flaw, leading to the disclosure of sensitive kernel heap memory to the service processor. This could result in unauthorized access to confidential system information.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Out of support scope kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-45994 https://nvd.nist.gov/vuln/detail/CVE-2026-45994 https://lore.kernel.org/linux-cve-announce/2026052740-CVE-2026-45994-3605@gregkh/T