{"action":"Upgrade linux to 5.4.8-1 or later.","affected":[{"fixed":"5.4.8-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["5.4.8-1"],"id":"tcs_01M5NE1ZAJ9X4YYP2S2MRC6TDT","modified_at":"2026-09-21T07:03:12.469044980Z","published_at":"2019-11-21T03:15:10.263Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-19037","https://security-tracker.debian.org/tracker/CVE-2019-19037"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-19037#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-19037"}],"summary":"ext4_empty_dir in fs/ext4/namei.c in the Linux kernel through 5.3.12 allows a NULL pointer dereference because ext4_read_dirblock(inode,0,DIRENT_HTREE) can be zero."}