SB20260727356 - Out-of-bounds read in Linux kernel octeontx2 af driver
Published: July 27, 2026
Security Bulletin ID
SB20260727356
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2026-64225)
CWE-ID: CWE-125 - Out-of-bounds read
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to out-of-bounds read in the cgx_speed_mbps array access in link_status_user_format() when processing firmware-reported link status values. A local user can trigger an out-of-range RESP_LINKSTAT_SPEED value to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2c3d26b4a62454945ba9ef3af3174d3e40e7afef
- https://git.kernel.org/stable/c/47a4cf2229be379cf88f92e32e1240337cd6273f
- https://git.kernel.org/stable/c/8201bf45cc7c1c1a09290c4db8ab1e19801f8fec
- https://git.kernel.org/stable/c/93d3dc81098cd60fb74d434ba7985ddfd9de5acb
- https://git.kernel.org/stable/c/94071141f00bc414e8f8f7f5db3b5143d535299f
- https://git.kernel.org/stable/c/985b5e38ac4f4d5ff03c8bfd8484353b440a1579
- https://git.kernel.org/stable/c/c0bf0a4f3f1f5f57aa83e1400ba4f56f0abfd542
- https://git.kernel.org/stable/c/e043017ac429caee73bd30c5a725659f1a3a4568