CVE-2026-80963
- Source
- https://cve.org/CVERecord?id=CVE-2026-80963
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80963.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-80963
- Downstream
- Published
- 2026-09-11T19:42:29Z
- Modified
- 2026-09-13T03:46:52Z
- Summary
- dm-stats: fix a crash if allocation of per-cpu data fails
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80963.json" }- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80963.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-80963
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedfd2ed4d252701d3bbed4cd3e3d267ad469bb832aFixedc3f211b7a277dd404b4e7d23095be964b5b46a27Fixed74210fa072960a18bb0eead487585452af722e4fFixed0c8f7870ed3ebd512f090d7714cc2c556b9e5c75Fixedcc87e26d9cce22061dc21e51e11afef29dbbc36a