Race condition in Linux kernel - CVE-2026-89844
Published: September 17, 2026
Vulnerability identifier: #VU150441
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89844
CWE-ID: CWE-362
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to corrupt host map data.
The vulnerability exists due to improper locking in qla24xx_report_id_acquisition() in the qla2xxx SCSI driver when processing format-1 report ID acquisition. A remote attacker can trigger concurrent host map updates to corrupt host map data.
Affected software
Linux kernel
How to mitigate CVE-2026-89844
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011
- https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0
- https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e
- https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9
- https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd