Out-of-bounds read in Linux kernel - CVE-2026-89846
Published: September 17, 2026
Vulnerability identifier: #VU150443
CSH Severity: High
CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89846
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in qla2x00_status_entry() in the qla2xxx SCSI driver when processing an FCP response containing an oversized response information length. A remote attacker can send a crafted FCP response with an oversized rsp_info_len value to disclose sensitive information.
Affected software
Linux kernel
How to mitigate CVE-2026-89846
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/125b12861c726e58448bb95d55b04851fb131d1f
- https://git.kernel.org/stable/c/6b08c0cb110a1fba92f99d655020198489699815
- https://git.kernel.org/stable/c/be75ab791c9b3baca66c70ce03443afebc83acda
- https://git.kernel.org/stable/c/ca6d880d6c70cb7946e7b3e05d7285f271b6d99e
- https://git.kernel.org/stable/c/d7f7746ff031ae45724881261804f4bf5317c985
- https://git.kernel.org/stable/c/e57ace988bda5693f7b3645f652ea4b4220870ee
- https://git.kernel.org/stable/c/ebc41dfc59d190956e0113e8bd90c28f6f21e8b9
- https://git.kernel.org/stable/c/f6e8977bce887481b2b2b0e2e14a791270741cfb