SB2026092493 - NULL pointer dereference in Linux kernel intel ixp4xx driver
Published: September 24, 2026
Security Bulletin ID
SB2026092493
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-97506)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to trigger a null-pointer dereference.
The vulnerability exists due to improper handling of an allocation failure in chainup_buffers() in the ixp4xx crypto driver when constructing a buffer descriptor chain for a scatterlist. A local user can submit a crypto request that encounters an allocation failure to trigger a null-pointer dereference.
Remediation
Install update from vendor's website.