Double free in Linux kernel - CVE-2026-89582
Published: September 12, 2026
Vulnerability identifier: #VU149225
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89582
CWE-ID: CWE-415
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a double free.
The vulnerability exists due to a double free in bnx2x_init_firmware() when firmware initialization fails and bnx2x_release_firmware() is subsequently called. A local user can cause firmware initialization to fail and invoke the affected cleanup path to trigger a double free.
Affected software
Linux kernel
How to mitigate CVE-2026-89582
Install security update from vendor's repository.