Unrated severityNVD Advisory· Published Sep 11, 2026· Updated Oct 19, 2026
CVE-2026-80963
CVE-2026-80963
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versions
>= 3.12.0, < 5.10.270+ 1 more
- (no CPE)range: >= 3.12.0, < 5.10.270
- (no CPE)range: < 7.2.6-1.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75nvd
- git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291nvd
- git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704nvd
- git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4fnvd
- git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851anvd
- git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27nvd
- git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36anvd
- git.kernel.org/stable/c/e45f0b0c41139810ff395ba2f3cfca1460a5b8a6nvd
News mentions
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