CVE-2026-80963
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 11, 2026
First seenSep 11, 2026
How to fix
Update
- Linux Linuxe45f0b0c41139810ff395ba2f3cfca1460a5b8a6, 9805d87d0e26c68ee69da3928e665214d2e2851a, 564d17573ef643c13cf6e9015124a205fa65e704, 389a50d094e13724f5f45e6d9d6ef734c98ba291, c3f211b7a277dd404b4e7d23095be964b5b46a27, 74210fa072960a18bb0eead487585452af722e4f, 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75, cc87e26d9cce22061dc21e51e11afef29dbbc36a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < e45f0b0c41139810ff395ba2f3cfca1460a5b8a6, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < 9805d87d0e26c68ee69da3928e665214d2e2851a, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < 564d17573ef643c13cf6e9015124a205fa65e704, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < 389a50d094e13724f5f45e6d9d6ef734c98ba291, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < c3f211b7a277dd404b4e7d23095be964b5b46a27, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < 74210fa072960a18bb0eead487585452af722e4f, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75, fd2ed4d252701d3bbed4cd3e3d267ad469bb832a ≤ v < cc87e26d9cce22061dc21e51e11afef29dbbc36a, 3.12 | e45f0b0c41139810ff395ba2f3cfca1460a5b8a6, 9805d87d0e26c68ee69da3928e665214d2e2851a, 564d17573ef643c13cf6e9015124a205fa65e704, 389a50d094e13724f5f45e6d9d6ef734c98ba291, c3f211b7a277dd404b4e7d23095be964b5b46a27, 74210fa072960a18bb0eead487585452af722e4f, 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75, cc87e26d9cce22061dc21e51e11afef29dbbc36a |
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