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VULNERABILITIES

CVE-2026-80963 Details

Description

In the Linux kernel, the following vulnerability has been resolved: dm-stats: fix a crash if allocation of per-cpu data fails If "dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))" fails, the code jumps to the "out" label and calls dm_stat_free. dm_stat_free does "for_each_possible_cpu(cpu) { dm_kvfree(s->stat_percpu[cpu][0].histogram, s->histogram_alloc_size);", which crashes with NULL pointer dereference if s->stat_percpu[cpu] is NULL. This commit fixes the bug by testing s->stat_percpu[cpu] for NULL before using it.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75 kernel.org
https://git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291 kernel.org
https://git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704 kernel.org
https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f kernel.org
https://git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851a kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-80963
NVD Published Date:
Sep 11, 2026
NVD Last Modified:
Sep 14, 2026
Source:
kernel.org
CVE-2026-80963 Details - Not Deferred