Vulnerability Database

323,024

Total vulnerabilities in the database

CVE-2021-29648

An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF), which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c), aka CID-350a5c4dd245.

  • Published: Mar 30, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-29648
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.9
  • AV:L/AC:L/Au:N/C:N/I:N/A:C

CWEs: