Not yet scoredPublished Sep 11, 2026

CVE-2026-80963dm-stats: fix a crash if allocation of per-cpu data fails

Updated under an hour ago (Oct 27, 2026, 11:40 AM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before e45f0b0c41139810ff395ba2f3cfca1460a5b8a6; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before 9805d87d0e26c68ee69da3928e665214d2e2851a; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before 564d17573ef643c13cf6e9015124a205fa65e704; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before 389a50d094e13724f5f45e6d9d6ef734c98ba291; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before c3f211b7a277dd404b4e7d23095be964b5b46a27; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before 74210fa072960a18bb0eead487585452af722e4f; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75; from fd2ed4d252701d3bbed4cd3e3d267ad469bb832a before cc87e26d9cce22061dc21e51e11afef29dbbc36a	CNA record

References

References

https://git.kernel.org/stable/c/e45f0b0c41139810ff395ba2f3cfca1460a5b8a6
https://git.kernel.org/stable/c/9805d87d0e26c68ee69da3928e665214d2e2851a
https://git.kernel.org/stable/c/564d17573ef643c13cf6e9015124a205fa65e704
https://git.kernel.org/stable/c/389a50d094e13724f5f45e6d9d6ef734c98ba291
https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27
https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f
https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75
https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.