High [CVE-2026-89846] Bound rsp_info_len to avoid OOB sense-data read
This high-severity Red Hat Linux advisory covers CVE-2026-89846; related products: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9.
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Summary
Bound rsp_info_len to avoid OOB sense-data read. Red Hat rates this important (CVSS 7.1).
Weakness: CWE-125. Red Hat lists fixing advisory RHSA-2026:71232 with package kernel-0:6.12.0-211.59.1.el10_2, kernel-rt-0:4.18.0-553.167.1.rt7.508.el8_10, kernel-0:4.18.0-553.167.1.el8_10, kernel-0:5.14.0-687.51.1.el9_8.
Affected products named by the advisory: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
- kernel-0:6.12.0-211.59.1.el10_2
- kernel-rt-0:4.18.0-553.167.1.rt7.508.el8_10
- kernel-0:4.18.0-553.167.1.el8_10
- kernel-0:5.14.0-687.51.1.el9_8
- RHSA-2026:71232
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
Mitigation checklist
- If QLogic Fibre Channel HBAs are not in use, the 'qla2xxx' kernel module can be blacklisted to prevent it from loading. This can be achieved by creating a modprobe configuration file. To blacklist the module: 1. Create a file named `/etc/modprobe.d/blacklist-qla2xxx.conf` with the following content: `blacklist qla2xxx` 2. Regenerate the initramfs to ensure the blacklist is applied during boot: `sudo dracut -f -v` (for RHEL 7/8/9) `sudo mkinitcpio -P` (for Arch-based systems, if applicable) 3. Reboot the system for the changes to take effect. Warning: Blacklisting this module will disable functionality for QLogic Fibre Channel HBAs. Ensure that this hardware is not required before applying this mitigation. A system reboot is required for the changes to take effect.
Official advisory · high-confidence parse· fetched 9 days ago·verify at source
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