SB20260918399 - Improper resource shutdown or release in Linux kernel scsi driver

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-90268)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 1 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows an attacker with physical access to cause a denial of service.

The vulnerability exists due to improper resource handling in sd_probe() when probing a SCSI device with a sector size larger than the page size and large pool creation fails. An attacker with physical access can trigger device probing under these conditions to cause a denial of service.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/748a14a0d41cfe3017251c11b314f85045414942
• https://git.kernel.org/stable/c/e3cc6ea1a745e7f5d326f919a428b244fa119d8f