SB20260912203 - Double free in Linux kernel broadcom bnx2x driver
Published: September 12, 2026
Security Bulletin ID
SB20260912203
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Double free (CVE-ID: CVE-2026-89582)
CWE-ID: CWE-415 - Double Free
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.