UNKNOWN NVD
CVE-2026-80963
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_siz
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.
References
- https://git.kernel.org/stable/c/0c8f7870ed3ebd512f090d7714cc2c556b9e5c75
- https://git.kernel.org/stable/c/74210fa072960a18bb0eead487585452af722e4f
- https://git.kernel.org/stable/c/c3f211b7a277dd404b4e7d23095be964b5b46a27
- https://git.kernel.org/stable/c/cc87e26d9cce22061dc21e51e11afef29dbbc36a
This unknown severity vulnerability was published on 2026-09-11 via NVD.
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