SB2026060425 - NULL pointer dereference in Linux kernel spi driver
Published: June 4, 2026
Security Bulletin ID
SB2026060425
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) NULL pointer dereference (CVE-ID: CVE-2026-46261)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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/E:U/U:Clear
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to a NULL pointer dereference in wpcm_fiu_probe() in the spi-wpcm-fiu driver when probing the device. A local attacker can trigger the vulnerable code path to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0f93a80eb3fd596ddc5730d05e0e8c88e1aa2891
- https://git.kernel.org/stable/c/2c538a0b3472e99c892c26f4940da38b7d87f632
- https://git.kernel.org/stable/c/888a0a802c467bbe34a42167bdf9d7331333440a
- https://git.kernel.org/stable/c/9e5cb7e67fbdb8320d68d87db882a92b36f6a1d9
- https://git.kernel.org/stable/c/cb9b2dc34a9eef0855edb00ae9c9b7f72394281b