Vulnerability Database

309,136

Total vulnerabilities in the database

CVE-2021-28964

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 buffer before a cloning operation, aka CID-dbcc7d57bffc.

  • Published: Mar 22, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-28964
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 4.7
  • AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 1.9
  • AV:L/AC:M/Au:N/C:N/I:N/A:P

CWEs: