{"id":"DEBIAN-CVE-2022-50222","details":"In the Linux kernel, the following vulnerability has been resolved:  tty: vt: initialize unicode screen buffer  syzbot reports kernel infoleak at vcs_read() [1], for buffer can be read immediately after resize operation. Initialize buffer using kzalloc().    ----------   #include \u003cfcntl.h\u003e   #include \u003cunistd.h\u003e   #include \u003csys/ioctl.h\u003e   #include \u003clinux/fb.h\u003e    int main(int argc, char *argv[])   {     struct fb_var_screeninfo var = { };     const int fb_fd = open(\"/dev/fb0\", 3);     ioctl(fb_fd, FBIOGET_VSCREENINFO, &var);     var.yres = 0x21;     ioctl(fb_fd, FBIOPUT_VSCREENINFO, &var);     return read(open(\"/dev/vcsu\", O_RDONLY), &var, sizeof(var)) == -1;   }   ----------","modified":"2026-09-01T16:05:20.434784817Z","published":"2025-06-18T11:15:53.193Z","upstream":["CVE-2022-50222"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-50222"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50222.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50222.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.2-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50222.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}