How severe is CVE-2025-21874?

This vulnerability has a severity rating of NONE with a CVSS score of N/A out of 10.

What type of vulnerability is CVE-2025-21874?

This is classified as NVD-CWE-Other, which is a common weakness in software security.

CVE-2025-21874 - NONE Severity | CVSS N/A

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: Avoid divide by zero in table status in Inline mode In Inline mode, the journal is unused, and journal_sectors is zero. Calculating the journal watermark requires dividing by journal_sectors, which should be done only if the journal is configured. Otherwise, a simple table query (dmsetup table) can cause OOPS. This bug did not show on some systems, perhaps only due to compiler optimization. On my 32-bit testing machine, this reliably crashes with the following: : Oops: divide error: 0000 [#1] PREEMPT SMP : CPU: 0 UID: 0 PID: 2450 Comm: dmsetup Not tainted 6.14.0-rc2+ #959 : EIP: dm_integrity_status+0x2f8/0xab0 [dm_integrity] ...

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