CVE-2025-39803

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.

Weakness

The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.

Affected Software

Extended Description

While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.

Potential Mitigations

References

• https://git.kernel.org/stable/c/c0cc24c139e0f62859dbf88e050ba074cd93988f
• https://git.kernel.org/stable/c/e5203d89d59bfcbe1f348aa0d2dc4449a8ba644c