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