{"action":"Upgrade linux to 6.1.153-1 or later.","affected":[{"fixed":"6.1.153-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.1.153-1"],"id":"tcs_01M5NNNR8Z3WQMZ6FZWBXYFSW8","modified_at":"2026-10-23T18:04:34.473257371Z","published_at":"2025-09-11T17:15:36.733Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-39742","https://security-tracker.debian.org/tracker/CVE-2025-39742"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-39742","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-39742"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() The function divides number of online CPUs by num_core_siblings, an"}