{"action":"Upgrade linux to 5.10.26-1 or later.","affected":[{"fixed":"5.10.26-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["5.10.26-1"],"id":"tcs_01M5NFHZQZASTXSWRC51XHT9CJ","modified_at":"2026-10-23T18:02:46.572019395Z","published_at":"2021-03-22T09:15:13.517Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-28964","https://security-tracker.debian.org/tracker/CVE-2021-28964"],"severity":{"label":"medium","score":4.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-28964","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-28964"}],"summary":"A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent"}