{"action":"Upgrade linux-6.12 to 6.12.100-1~deb12u1 or later.","affected":[{"fixed":"6.12.100-1~deb12u1","introduced":"0"}],"component":"linux-6.12","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["6.12.100-1~deb12u1"],"id":"tcs_01M5NTGBZ2Z9YKQBRQBK1HZ2H1","modified_at":"2026-10-01T03:03:48.191141443Z","published_at":"2026-07-25T10:17:23.280Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-64398","https://security-tracker.debian.org/tracker/CVE-2026-64398"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-64398#Debian:12/linux-6.12","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-64398"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a permission check for FSCTL_SET_ZERO_DATA FSCTL_SET_ZERO_DATA in smb2_ioctl() destroys file data via ksmbd_vfs_zero_data"}