Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV L L L N U H N H 7.1 .0015 4.8 —
AFFECTED Product Versions Fixed Linux 246246cbde5e840012f853e27630ebb59f409486 – — Linux 3.19 – 6.1.18
TIMELINE Sep 15 Reserved by Linux Sep 15 Published (CNA: Linux) Aug 4 RESCORED — CVE-2023-53254 (Linux). CVSS 7.8 → 7.1 (NVD).
In the Linux kernel, the following vulnerability has been resolved: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels The cacheinfo sets up the shared_cpu_map by checking whether the caches with the same index are shared between CPUs. However, this will trigger slab-out-of-bounds access if the CPUs do not have the same cache hierarchy. Another problem is the mismatched shared_cpu_map when the shared cache does not have the same index between CPUs. CPU0 I D L3 index 0 1 2 x ^ ^ ^ ^ index 0 1 2 3 CPU1 I D L2 L3 This patch checks each cache is shared with all caches on other CPUs.
| Date | Event | Detail |
|---|---|---|
| September 15, 2025 | Reserved | Reserved by Linux |
| September 15, 2025 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2023-53254 (Linux). CVSS 7.8 → 7.1 (NVD). |
Authoritative record: CVE-2023-53254 at cve.org
Vendors: linux
Weaknesses: CWE-125
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-53254 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.