Updated: 2026-02-27 03:41:31.526226
Description:
In the Linux kernel, the following vulnerability has been resolved: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic() When performing an iSCSI boot using IPv6, iscsistart still reads the /sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix length is 64, this causes the shift exponent to become negative, triggering a UBSAN warning. As the concept of a subnet mask does not apply to IPv6, the value is set to ~0 to suppress the warning message.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.1 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.1 | HIGH | Released | CLSA-2025:1747725447 | 2025-05-21 01:42:08 | |
| CentOS 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Released | CLSA-2025:1748366748 | 2025-06-10 00:30:48 | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Released | CLSA-2025:1747260502 | 2025-05-28 00:30:41 | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2025:1747688514 | 2025-05-21 01:42:09 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2025:1747688831 | 2025-05-21 01:42:10 | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2025:1747688581 | 2025-05-21 01:42:07 | |
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Needs Triage | 2025-08-30 11:21:52 | ||
| CloudLinux 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Ignored | 2025-11-08 00:18:56 | CloudLinux 6 and 7 support is limited and provided on demand. We strongly recommend upgrading to Clo... | |
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Released | CLSA-2025:1748365686 | 2025-05-28 00:30:40 | |
| Oracle Linux 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Released | CLSA-2025:1747251218 | 2025-05-16 05:12:08 |