SB20260918271 - Use-after-free in Linux kernel spi driver
Published: September 18, 2026
Security Bulletin ID
SB20260918271
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) Use-after-free (CVE-ID: CVE-2026-90410)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/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 a use-after-free in the Davinci SPI driver's interrupt handler when processing a late or latched interrupt during device removal. A local user can initiate device removal while such an interrupt is handled to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1a7958ce58dc95b06615df00c120ece4eb9ccc86
- https://git.kernel.org/stable/c/29e37f768f35592e26477f703649bd2e6f18d857
- https://git.kernel.org/stable/c/3b544072185c3d19ddec621ec9f6897ea2d10ee3
- https://git.kernel.org/stable/c/ea408a05dc8f18b4a184b88d6e19d2fd1acc1527
- https://git.kernel.org/stable/c/f9452eba71fbfcee55c0b8e030ee3615e9f75f65