CVE-2025-39803: scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-09-15 · updated 2026-10-19
Weakness: CWE-617

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl() The UIC completion interrupt may be disabled while an UIC command is being processed. When the UIC completion interrupt is reenabled, an UIC interrupt is triggered and the WARN_ON_ONCE(!cmd) statement is hit. Hence this patch that removes this kernel warning.

Affected products

Linux kernel: from 6.13 before 6.16.4; 6.17-rc1, 6.17-rc2 — fixed in 6.16.4

How to fix

Upgrade to a fixed version: Linux kernel 6.16.4. Check the vendor advisory for mitigations.

References

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