CVE-2026-80963Medium· 5.5▾ SunlitIn 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_s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 4.1
none → medium
— → 4.1
none → medium
— → 5.5
none → medium
0.2% → 0.2%
Last analysed / modified upstream
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.
Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < e45f0b0c41139810ff395ba2f3cfca1460a5b8a6Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < 9805d87d0e26c68ee69da3928e665214d2e2851aLinux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < 564d17573ef643c13cf6e9015124a205fa65e704Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < 389a50d094e13724f5f45e6d9d6ef734c98ba291Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < c3f211b7a277dd404b4e7d23095be964b5b46a27Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < 74210fa072960a18bb0eead487585452af722e4fLinux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < 0c8f7870ed3ebd512f090d7714cc2c556b9e5c75Linux >= fd2ed4d252701d3bbed4cd3e3d267ad469bb832a < cc87e26d9cce22061dc21e51e11afef29dbbc36aLinux 3.12Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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